K9ay control box


k9ay control box The control box includes a 15 dB preamplifier Low band aficionados begin their consideration of Beverages at one wavelength. Pre-amplifier mounted in the remote plastic box. The antenna center unit is shown with a balun in the center of the box. Setting the corners of the loops to the NW, SW, NE, NW directions and using the control box to select the proper feed and terminations gives a 4 directional antenna. Dec 31, 2008 · K9AY & 160m short vertical used copper ground stake 1m + buried copper radials The PI4TUE shack building is about 60-70m high, has a full metal frame on the outside. 000 North (Asia, India) 180 (S. 5 antennas. The controllers were not problematic even in heavy RFI environment and they worked well so far with every user. I choose the 12 Volt and that is enough for driving the relays. Jun 17, 2017 · Turn off your preamp and use your RF gain control and/or attenuators! Your antenna only needs to produce enough signal to exceed the internal noise of the receiver. Diagram from ON4UN's. Rastreo de paquetes: ControlBox Version 2. The control box is also made of PCB, dimensions are 18 x 12 x 8. The box on the right is an RTR1A transmit and receive relay switch between TX and RX. Get fast, Free Standard Shipping on orders over $99 from DX Engineering -- no shipping, handling, or rural fees! Exclusions apply. K9AY AYL-4C Loop Control Box with build it filter and pre-amp. 1. four different directions. Oct 06, 2017 · Also using a Welbrook K9AY Receive Antenna for VLF, LF and HF Wellbrook K9AY Loop. Loop antenna. The transformer has a 3:1 winding ratio and the core type is MN8CX. 2. A controller box in the "shack" operating position injects a DC voltage into the coaxial cable. 843 MHz oscillator mounted in 10x10 cm. Whether it’s movies, video games, virtual reality applications, themed entertainment or professional simulation, D-BOX haptic technology creates a feeling of presence that The box is outside! You can see the 8 coaxial cables from the vertical going inside through the gland nuts, connected to the PnP controller. Controller. Indoor HF Active Loop Antenna. Two relays make the switch network. Featured Ham Radio Organization Websites hosted at QTH. Flag antenna. Assemblies, KBL, KEB, KBS, KHB, PM, KSL, KDZ, KDHE, HPM, KDS, KLS, KPM, KAC. CONTROL BOX RELAY BOX Relay 1 Relay 2 K2 Common + + Vactrol Earth ground Coax line loop 1 loop 2 K1 VTL5C4 R11 130 All diodes are 1N4004 R1 to R4 and R11: 560 1/2w R5 to R10: 10k 1/4w Transistors are 2N5089 C1-C2: 10µF 35V C3-C4: 0. The AY Technologies AYL-4 K9AY Loop Control system provides the electronic portion of the K9AY Loop receiving antenna system. Control voltages for the relay are fed down the coax. In summary, it is built around the use of an LPT port for computer control of the CW, PTT, Radio A/B, and band data. The RF choke and 0. Size 10×10 cm  11 okt 2015 De switch unit moet degelijk worden geaard. Remote Control Box of 4 Square K9AY Array ,SP3KEY. Quality PTFE SO-239 connector. Switch control For TWO 4 squares 80 meters #1 K3LR. It also allows momentary monitoring of the TX antenna. Impedances range from 500 Ohms in K9AY, to 950 Ohms in Deltas and Flags. Figure 3 - RCA8C-1 unit mounted to 2" pipe using the included DXE-SSVC-2P V-Clamp the control to maximise the forward lobe of the antenna, and/or maximise the rearward null to remove an interfering signal from the opposite direction. Jun 10, 2018 - Explore Tuong's board "Mast" on Pinterest. Moteur de recherche Recently I got a further lot available where I can put a K9AY loop; it's over 100 meters from the Tx antenna and I can reach it with a buried feedline and a 5 pole control cable. for a K9AY loop at 45° elevation with a termination of Here we see null K9AY loop with terminated adjusted for ing box that fits below the rotator controller. Low Band DXing so I'd have the schematic in front of me. Jan 06, 2018 · The K9AY antenna uses a terminating resistor (at right) and a matching transformer (on the board on the left). DHDL. Pro- excellent directivity I have made two physical modifications to the original K9AY design. As you can see, the two twenty meter circumference loops were positioned exactly 40 meters apart. A length of 50 Ωcoax carries the signal and K9AY Loops Wish you had enough room for an effective low-band receiving antenna Sida 4 av 10 http://www. Finishing touch of the control unit. issue of The AS-AYL-4 consists of two units, an indoor control box and. Links Control for 80 meters K3LR. Gary Breed, K9AY, described this loop very well in his Sep 1997 QST article (Ref 1265). Three BPFs and Bypass - 4 positions switch on the front panel. ( Drawing of my K9AY variation. PSTRotatorAZ Rotator Control Program – N7GCO (Mel) May – Show & Tell 1. I used a transformer that has 12, 14 and 16 Volts secondary. It comes with a control box (se photo) and an external rely box that is mounted at the mast. The elimination of control cables gives you a fast, neat, and inexpensive installation with only one coaxial line for four antennas. changing beam-direction of the antenna through the four cardinal . I use one on 160 meters, and a pair of them on 80 meters, connected via a phasing box. Separate RF and DC grounds are used in the relay/termination box. — 73, Kenneth Hansen, KB2SSE, 10 Maple Rd, Ringwood, NJ, 0745; kb2sse@arrl. – K9AY Loop Include Ewe, Flag, Pennant and K9AY. com. Buy online today. Payments collected on this site are applied to your AMC/CCC account. Here you want to null out other stations on the same frequency and/or adjacent frequencies to pull out a rare one in a different direction. The control box for the antenna uses an RCA out jack, while everything I own is either an N or SO-239. For the outside relay control unit I used a 4”x 4” x2” gray “Carlon” electric junction box, which is readily available from Lowes or Home Depot. Here are all the details you need to build the K9AY Loop antenna sys- tern, including a relay-controlled pattern- switching system that uses the coaxial feed line to carry the switching system control voltage. The whole system operates reliably. 820 Khz The control box has a very good preamp, 15 db, for 160, and 80 meters. Alle vier de richtingen zijn schakelbaar vanuit de shack. A 9:1 impedance-matching transformer is connected from one end of the loop to the ground and terminating resistor is connected the other end of the loop to the ground. They are simple to install, rugged, and will automatically control wire tension, antenna sag, and absorb shock when the wind moves the support trees. Simple 3 element phased array, KC0VKN. Contest Breeze Shooters ground wave contest this Saturday eve-ning. Problem 2 : main board impossible to be removed normaly require to twist main chassis to be done. My lot is fairly small, and I want a decent length receive antenna on my SDR. Not all of us have 540 feet available for a 160-meter Beverage, so we need to try other options, which is why we hear so much about EWEs, K9AY loops, flags, pennants, slinkys, snakes, short vertical arrays and other small antennas. Here are what I made for further illustrationOf course, highly infuences by the original article from K9AY himslef, and from ON4UN Low-band "bible", HI Ronan K9AY control box on top of the P3 fixed on Europe (no remote control, other than the ability to turn it on or off via the K3) K3 with the RRC-1258 MkII RemoteRig interface. I used a metal box and you can too. A complete set of chip capacitors is included with the boards. 27-440 Website: Industrial Communication Engineers, LTD. I built the classic K9AY crossed loops at 90 degrees for four-direction switching. TX Text Control is a family of word processing components that offers developers all the features expected in a high end reporting and word processing package in reusable component form. This loop replaced the K9AY loops in the summer of and the EWE and loop-style K9AY and Flag antennas that act as a pair of short ver - ticals were a step forward. On top of the ft-1000mp, one can see the K9AY control box, old Beverage control box and the Ameritron coax switch. To make a payment, please enter your EDP number followed by your 5 Digit Zip Code,10 Digit Phone Number, or the last 4 of your SSN. A feedpoint box provides a necessary balanced antenna / high impedance to unbalanced cable / 50 ohm impedance transformation. Home | About Us | Products | Production capacity | News | Feedback | Contact Us Address: Xili Town   So I put down my EWE last WE, and I'm thinking of building a half-size K9AY antenna. Mount motor to iron tube. Computer Modeled 4 Square K9AY Array will really operate. Radio Station Equipment; Radios, Tuners, Amps and Support Items • Elecraft HF Transceiver, K3, Qty Aug 09, 2019 · Required ground rods and control cable must be purchased separately Operators will find the same advantages with a Receive Circle Eight Package. 6dB) but the rearward null is fairly narrow, but not so narrow as to make it K9Ay Array solution Rev-B 06/07/09. 7. 30 Jan 2017 When I saw a Array Solutions K9AY loop controller on QRZ's swap each other and a control box with relays switches the feed and termination  With two loops you can beam in four directions using a relay switching box and control box. Georgia Island. No, but I did make my own conversion from the Mark I to the newer Mark II. It consists of a wire loop of any convenient shape (diamond, delta, etc), hung from a single support and with a ground rod at the bottom. Preamplifier switch K9AY Dimensions • 28 foot suggested apex • 86 feet of wire • Each corner pulled 15 feet from center • Each wire lead pulled back to K9AY box 1-2 feet off the ground-• Have K9AY mounting bracket grounded to 8 foot ground rod • Radials are typically not needed • Use RF beads and bury coax to keep RF off feedline Control Consoles Distribution systems and components Combo box of filters Matches Beverages, BOG, Pennant, K9AY loops, FLAG, DHDL with Input impedance of 200 This banner text can have markup. 00 lbs. $50. -loop dimensions; -materials used; - relay box; -control box. The K9AY Array uses two loops at right angles. It is of utmost importance to decouple the coax shield wire from the antenna! K9Ay Array solution Rev-B 06/07/09. The 4-Square Site,80/160 Antenna,W1MX Mar 10, 2007 · I cannot recommend these loops for DX purposes, but they are great for local work, especially in the noisy summer months. PaymentVision is a 3rd party processor for Credit Control Corp. The interface to the feed line follows Rick N6RK's general design which uses a resonating cap and a paralleled step-up transformer built from type 61 material. But the support and antenna loops are my own  18 dic 2018 K9AY Control Box. ru/k9ay_loop. The base of the supporting pole and the ground rod are located at the center. I intended to keep my existing Pennant control device and simply add a tworelay control line and a pair of switches on the front of the unit to   Pennant Antenna. Two quarter wave verticals. It attenuates unwanted signals with up to 30 dB. org As >the movie shows, a properly built K9AY, without radials, can produce >phenomenal F/B under some conditions. As well as providing isolation features to ensure the loop is disconnected during transmit. Not visible in the photos is a garage roof tripod support with a four-element HyGain Yagi for 6 meters mounted 27 feet above ground. by Munge · 28/04/2012. K9AY control box are shown with reversed polarity. All frequency control and bandwidth adjustments must track. You can change the User Account Control notification setting to one that is more secure or less secure than the default setting. com If you would like your web site featured here, and it is hosted with QTH. Buy Genuine Rain Master® Parts. The small, silver, push-button box on the desk selects directions. The AS-AYL-4 consists of two units, an indoor control box and. Just a smaller box than for the 9 Circle array. Once the control unit and relay box are built and operating properly, mount the relay box at the ground rod and connect the four ends of the loops to their proper   Control box schematics (at the base of the antenna) I like the possibility to adjust the termination resistor through K3/K4/K5. 00 shipping 1 bid . EWE. 000" is formula "=D" or "=-D". Weight, 1. The control cables and terminals were placed on the ground facing side, and the box was mounted on a small piece of scrap aluminum angle that happened to be handy at the time of construction. AYL-4R Relay Box All associated cables and coax connectors. Jan 31, 2018 · The variac box has turned out to be really helpful and something I should have done before. This is being taken care by another 1. In shack K9AY control box version two along with Perseus and the MFJ-1026 phaser. 1/10/2011 -- Second snow of season (first of 2011) - almost an hour, yet enough to shut down schools for 2 days. Here's a quic Loop antennas like K9AY, EWE, DHDL, K-9xseries of LBS, rought input impedance 450 ohms; Loop antennas like FLAG, rought input impedance 800 ohms; The RX Antenna Matching set use an isolated winding, matching transformer system to significantly increase the signal-to-noise ratio. The coax connection has 6pcs "3S4" tubular type ferrites. Even switching the preamp can be done via the same cable. Remember that the Feb 25, 2008 · The connection box contains a 36:1 x-former (2x glued BN202 #73 binoculairs with 12 and 2 turns). The full document is available here in PDF format. Ground • Control Box in shack, with 3 switchboxes in field. An interesting feature of this antenna design is the possibility of its use with the EWE antenna and the Delta and Diamond variants of the Pennant/Flag. Commutation 1 TX and 4 RX (beverages or K9AY)  Phil switches between the loops with a K9AY Loop Control remote switch box that has an in-shack control box. The AYL-4 is used with two loops installed using a single support, oriented at right angles to one another. Here’s my switchbox (built using 48-volt relays scavenged from the AT&T Long Lines system in the post “Resume of a Master Dumpster Diver“). Continue. The AS-AS-AYL-4 is used with two loops installed using a single support, oriented at right angles to one another. The relays are large, 12 VDC units which do not have the best contacts. Diagram from ON4UN’s. Current K9AY remote termination box with integrated vactrol and relays for 4 directions. With the AYL-M kit, 21 feet in each of the four directions is required. all rights reserved ® Version 2. Follow these steps to change the UAC notification setting: Open the Windows […] D-BOX redefines and creates realistic, haptic and immersive entertainment experiences by providing feedback to the whole body and sparking the imagination through motion. The termination consists of a 500-pF The control box will take a little more time, but is not difficult. Further Control Structures - . The main feed from the shack is RG213 and the control is carried on CATVe. Nov 19, 2012 · Put rotator control box in shack, connect cable to the multi-pair control cable that goes to the garage. The control box also switches between the normal antenna and the loop. They will work with antenna impedances from 200 to 800 ohms in 3 Another word for control. 1 µF capacitor keep the RF and control voltage separated at the shack end. The Phasing Control Built Into My K9AY Recceiving Loop Control Box. K9AY insulators and remote box. The Operator's Unit provides . K9AY Loop antenn för (40), 80 och 160 meter From Array Solutions comes this control box AS-AYL-4 for assembling a low band receiving antenna in four directions based on the famous K9AY loop concept. K9AY 160 - 40 3 Phased Verticals 160 - 40 P. de N4GG. The AYL-4 consists of two units, an indoor control box and an outdoor Receiving antenna for low bands - K9AY loop antenna installed at PA6Z Contest group. USA) and NE(dir. It houses two relays, a matching transformer and the terminating resistor. 1:1 current balun; 1989 LX Coupe II; 1989 Mustang LX Coupe; 1989 Mustang Instrument Cluster After I made the controller for the 9 Circle array I made the same for the 80m TX antennas. GP160/80/ 40/30 K9AY or Flag ? The K9AY antenna doesn't work without ground. K9AY Antenna. While outwardly appearing different, the Ewe operating mechanism is no different than a Flag, Pennant, or K9AY. Now this is my question: - in the original '97 QST article K9AY uses a trifilar transformer loop right angle pair of K9AY antennas. I have an ICE preamplifier left and I am intended to put it down there. K9AY bottom view. simple construction setup an tunig noticiable gain and directivity. Included are two units, the switching box that can be tower, mast, or wall mounted, and the control Loop Support and Array Control Loop Support, Direction Control Box, Hi-Z Amplifier Gary Breed, K9AY, "Arrays of K9AY Loops: "Medium-sized" low band RX K9AY Loop antenn för (40), 80 och 160 meterFrom Array Solutions comes this control box AS-AYL-4 for assembling a low band receiving antenna in four directions based on the famous K9AY loop concept. K9AY terminated loops for 75m It is very compact, low noise and directive with an impressive 20 to 25 dB front to back. A big three-section (each section has 12-500-pF) variable capacitor with vernier intended for tuning the loop to a resonance was in the box. The actual optimum value is probably a bit lower, and that's probably an experiment I'll be doing. K9AY 160M / 80M Receiving Loop Antenna System Home Depot. web; books; video; audio; software; images; Toggle navigation Just a heads-up to the flag, pennant, and K9AY builders-to-be out there. For this we need just one open collector. The center box is the K9AY control console. Results on nulling skywave signals ranged from minimal to as high as 40 dB. 5 cm. The results are quite disappointing ! The K9ASY loop, in my environment, is very NOISY and it has been always worse than all my other Rx antennas. Modifications [ Top ]. Modifications [ Top] The original article by Gary Breed on which this antenna was based used a very clever idea for relay switching via a control voltage up the antenna cable - a positive DC for the first relay, a negative one for the second, and AC for both at once. A 10db or so amp is needed but in shack units - such as the Kiwa work very well. 25 sloper on the west (dir. The trap is Out in the south side yard is a pair of K9AY design receive-only loops used for 80 meters and 160 meters. 35 Feeding Elongated Loops. What do you do if the antenna of your 2. QIACHIP RF 433MHz Superheterodyne Module Receiver and Transmitter with Antenna For Arduino Uno DIY Kits 433 MHz Remote Control. The box is controlled from inside the shack and allows for selection of the four directions. box opened. 160M signals are really weak here from Europe and the K9AY AYL-4 makes the difference - many times - between making the QSO and not. Thanks Gary Breed, K9AY!. Sep 03, 2014 · Relay control is accomplished using the rig’s PTT relay or a breakout box that is driven by the PTT relay. ML-6 Rotor Control Box Lamps: BCD Band Decoder & Antenna Selectors: HSD-9 High Side Driver Board: XT4Beacon & CW IDer: USB Interfaces: Contest Card Voice CW Keyer Electronic Development Products; ATS-1 Terminal Shield for Arduino ™ IOX-16 I/O Expander Shield for Arduino ™ VR-X Power Supply Voltage Regulators: LA-10 LED Array Kit Sep 02, 2011 · Control Box; Models and Measurements; 2011 Update; Upper Bands (20, 17, 15, 12, 10 meters): Sloper Array; A Look at the Sommer XP-50; The Rotator Cage; Tower Junction Box; Back to my Amateur Radio Page upward and the control and coaxial cable connections downward to prevent water from entering the box. Soapbox 3Z9R: 73, Jan SP9BRP szia! 4O4SM: vy late started, qrp 10m-2W, 15m-3W, 20m-5W, 40m-5W, Inv V, akkuKeyer, 670 m/asl, GL to all! Nov 17, 2020 · Buying a good antenna can be expensive, and in the world of do-it-yourself (DIY) electronics, nothing beats making your own antenna out of household items. Oct 16, 2020 · Terminated Loop-A Compact, Directional Receiving Antenna,” by Gary Breed, K9AY. Dec 27, 2014 · On the feed point end of the unterminated beverage, I hammered a copper clad ground rod into the front lawn. Read about the benefits and contents of DX Engineering’s Receive Circle 8 Package , featuring eight active receive antennas, eight circle array controller and console, coaxial cable, tools and But such a minimum seems to be the possibility of switching the receiving antenna, for example at 40 meters from vertical on K9AY and back while listening. This is as expected, since only stations directly off the back are in the pattern null. Above is a close-up of the switch box. Pressing one of the push buttons will select the active outputs. 47µf Tantalium My K9AY control system Sylvain Naud, fall 2008 Core Once the control unit and relay box are built and operating properly, mount the relay box at the ground rod and connect the four ends of the loops to their proper terminals. Figure 5—Schematic of the relay box located at the base of the system. The control box rear panel. i will go over some important topics today. Since my lot is much longer than wide (120’x70′), I’m stuck running the long wire receive antenna broadside to my A simple modification is used as directional antenna with remote control: two orthogonal loops that combine E and H-field in a simple way. A 7. Advantages is that there are 4 pairs of twisted cable available in one cable and therefore there is no need for a control cable. Remember, in the antenna control box, there are 2 grounds : Antenna ground, station ground. The circuit lets you connect push button switches and10 a PTT inter lock (active when grounded). My first method of switching! The "switch box" is a Mini fuse box and the "switches" are stainless bolts with the heads cut off! The Pennants central box ready to be buried with a K9AY preamplifier The Pennants switching box of the southern group with the added common mode choke. Diagram from Impedances range from 500 Ohms in K9AY, to 950 Ohms in Deltas and Flags. You can use this 6 Wire cable with Yaesu rotors, K9AY loops and any other application where you need a ruggedized control cable for outdoor or direct burial installations. C. (1x10, 12V switch, sj2w and 4o3a stackmatches). The control cable, 100 bead choke on rg8X coax and the ground wire are shown. com, then please Contact Us . The whole thing was given a random brown and green overcoat of paint for a bit of camo and UV protection. 190’ 40 M tower 160/80 Beverage box. Long beverages have a sharp directional pattern and that explains the lower noise. I chose not to connect the coax shield, coming from K9AY 160M / 80M Receiving Loop Antenna System Written by FRANK J DZIURDA Monday, 14 March 2011 21:59 ohmmeter, it will show zero ohms on both windings. This was what got us hooked on the GHE system, Controlling a K9AY and Pre Amp hundreds of feet away, it almost paid for it’s self VS Control cable. It also couples the DC control voltage onto the upper and lower halves of the antenna. The remote Control (directions switching) is made as small box, which can be put on any free and comfortable place on your desk. Mike (K7STO) “NON-Tennis Ball Antenna Launcher” 3. The green and yellow toggle switches were added for loop and direction control. Sandwich and S. coax. Check. This allows me to have optimum values for both 80 and 160m, without the complexity of controlling a Vactrol. Turf Parts Book Oct 18, 2020 · A manufacturer of Printed Circuit Boards for electronic projects that are used by the Amateur Radio and electronic hobby enthusiast. The sketch below shows the arrangement of a 2-loop Array. In addition to the circuit board holding the relays and the LM3914, it contains the receive antenna amplifier – in this case, the PRE-2 from K9AY that can provide around 12dB gain. It behaves as two small crossfire verticals. Commutation box for phased GP. More info and photos available here . The K9AY E-H HF Antenna Producer of the K9AY low frequency receiving antenna system. 5 kV 7. Dit is essentieel voor een goede werking. Used with the K9AY two-way loop system described in the September 1997 edition of the ARRL’s QST magazine, The K9AY Terminated Loop - A Compact, Directional Receiving Antenna. The AS-AYL-4 consists of two units, an indoor control box and an outdoor direction-switching relay box. The Phasing Switch Box. BOG. RX protections in feeder and controller; RX source switch for TX and RX antenna. When I hooked it up, it amplified, and I was happy, but I measured the gain and it was only about 8dB. JA) side. The 100 µF capacitor in the middle of the page, for the relay coil, is also shown incorrectly. Please K9AY AYL-2R relay unit and AYL-2C loop control box (with manuel). description:Control Box. W8JI Website. 34 Diagram from ON4UNs Low Band DXing . Radio a 2 valvole Ham Radio, Liquor Cabinet, Design, Home Decor,   Description: CSKX series control box for quick closing valve is a remote control plant, which is suitable for fuel oil tank, lubricating oil tank and daily  The controller unit and the operator terminal communicate via a single network connection. HA-DX Contest Hungarian Radio Amateur Society. Spacing with the transmit antennas and the K9AY loop is approx. Out Door Control Box I'd recommend using a NEMA PVC box from your local home supply/lumber store. Ground. Choose an option, Assemblies  Антенна K9AY, модернизирована таким образом, что теперь она имеет 2 рамки, В качестве фильтра можно применять фильтры Black Box, Iso Box. Control Panel s (2) fully protected from lightning with Alpha Delta Poly Phasers. The other 4 cables are left open. This is the bottom of the K9AY relay box. Above the K3 is a Drake matching network used for 75m, but not part of the remote set-up. The picture above shows the switching unit which is located outside in a (hopefully) weatherproof box. Figure 1: Overall View of Antenna System. Text Control Reporting combines the power of a reporting tool and an easy-to-use WYSIWYG word processor - fully programmable and embeddable in . Then RF travels to the MFJ-1026 sense antenna input. Everything you need to construct a rotatable K9AY loop array except supports and wire. 5 Sep 2012 By the way the control box and the relay box is from Array Solutions AS-AYL-4 K9AY system. New design injector (new version with buttons and USB control) new. 000" is actually an Excel formula "=L-J" and " 133. It works well enough, but I’d love to get one of these units into the control box at the base of the antenna. Time to break out the soldering iron again, and one sacrificed RCA cable and a PL-259 pig tail later, I had a crude but effective RCA to PL-259 cable. Below you see the schematic diagram of the control box that is located in the shack. Moteur de recherche ing on the K9AY antenna control box and wires. > >I have a movie and presentation on the K9AY loop at www. Hence The K9AY is a receiving loop antenna that works well on the lower frequency bands. Instead of a wire return to complete a transmission line path, the EWE relies on earth. Universal Receive antenna matching set, 150/300/450/900 ohms antenna impedance, 75 Ohm out, F connector, CommomModeChooke integrated. common mode current. Due to their length, they act as inductors at the dipole feed points, which creates a parasitic reflector. By switching loops and which side the terminating resistor is connected, 4 directions are possible. 1919 "antenna" 3D Models. Variable load resistor -  This is the popular K9AY Loop receiving antenna, as described in the September 1997 issue of The AS-AYL-4 consists of two units, an indoor control box and. See more ideas about Masts, Antenna, Tower. e. 32 Diagram from ON4UNs Low Band DXing . Transformers are electrical devices that are designed to transfer energy from one circuit to another by electromagnetic induction. The terminating resistor's value by what's marked should be 490 ohms, but measured closer to 520. This is another variant of the EWE, where the bottom wire of the loop is grounded in the center. Port Diagram A small wooden box (item 6) was in the bottom of the loop. CQ WPX phone contest the last weekend of March. A 10-15 dB broadband amplifier is selected by a front panel switch on the control unit. The K9AY is terminated loop. Comprised of a 85 foot loop with a switching box located at the bottom feed point. Commutation box. If noise isn't an issue, I just turn down the Main Antenna Gain on the MFJ-1026. This system provides a cardioid directional pattern in. K9AY Vactrol contoller. Don’t expect S9 signals. To the right of the Mark 5 are my antenna rotator controllers and the Stackmatch controller, while on top of For a long time I had the idea to use UTP (Unshielded Twisted Pair) cable for my receive antenna, the K9AY or anything else. The control box includes a 15 dB preamplifier Aug 30, 2010 · I built the classic K9AY crossed loops at 90 degrees for four-direction switching. 31 Diagram from ON4UNs Low Band DXing . Website Design by Granicus - Connecting People and Government Ameritron RCS-10 Remote Coax Switch & OK2ZI 6 way Remote Coax Switch (with 2nd RCS-10 Control Box) Free standing aluminium 60' tower Yaesu G1000DXA rotator / ERC serial interface / Ham Supply Illuminator 5 band Optibeam OB9-5 or 5 band Quad LF dipole antennas and K9AYs RigExpert AA-54 analyzer Alpha-Delta suppressors - TT3G50UHP 2/5/2011-- Having recently finished the switch and control boxes for the K9AY, I finally got the base, center support and loops done. 1µF K1-K2 12v DPDT type C1 C2 C3 C4 V+ + 0. If each antenna is constructed and matched well, when you transmit through the 4-square there will be little left over power to be shunted towards the dummy load. The relay shuts off the RF path into the receiver on TX. It does work very well on 40 meters, just be sure to turn the preamp off. Problem 3 : front panel board impossible to  Tags für diesen Artikel: antenna, antennas, k9ay, planning construction Controller & relay box are still waiting for installation now. shipping: + $10. Right knob control is for VTL5C4 vactrol LED intensity. Product Name:Control Box. Find more ways to say control, along with related words, antonyms and example phrases at Thesaurus. Bitdefender BOX comes with high-performance hardware for lightning-fast connectivity and virtually instant response to all threats. The system provides interfaces to the thrusters and necessary sensors. net Hi Kenneth, Thank you for pointing out that error on the schematic diagram of Figure 15. This home brew SO2R controller project follows the “old-n-busted” theory, and is based on the design by N6BV in the ARRL Handbook, as well as some input from K4QPL. Important: The terminated diamond loop is a balanced antenna and I am feeding it with an unbalanced coaxial feed line. Antenna,” by Gary Breed, K9AY. On 80 and 160 meters an antenna with modest gain. The ‘finished’ control box that needs to be cleaned up a little. Various PC boards available – KK1L, SJ2W, • UTP for control lines (but beware furry creatures) G3BJ / G5W Contest Station and SO2R The u-Tune Ports on the FT-950, FT-1200 and the FTDX-3000 can be used for something other than their intended purpose. 28 Jul 2016 Controlled by coax feed line (twin line for Rload). If you don’t copy CW, use a program like FLDigi to help you. Our 6 Wire / 18 AWG Control cable is made with stranded tinned copper conductors and the same UV Resistant / Direct Burial Polyethylene Jacket as our 8 Wire control cables. NET applications. Epi Info is available for Windows, Mobile, Web & Cloud. I use the loop antennas on 160 thru 30 all the time. Replacement remote controls or spare Sky remote devices for your Sky+, Sky+ HD boxes. The “mother of all low band receiving antennas” is the Beverage. K9AY Control Box. • Terminated loop produces a cardioid K9AY Control Box. PO Box 18495 Indianapois, IN 46218-0495 Tel. 10 ноя 2019 Конструкция приемной КВ антенны k9ay на НЧ диапазоны, которую можно переключать на несколько направлений. Years ago this core was an hot item. This latest model of the Operators Unit also includes a toggle Pro- at least 2 dB better than K9AY, instantaneous direction switching, four-direction array fits in my yard, high output level (no preamp required, common mode not a big problem) Con- only 2 dB RDF improvement, have to run feedlines to each vertical and design a phasing box. Diy broadband scanner antenna. Second Harmonic Optimized Low Pass Filter by W3NQN   The K9AY comprises of an Antenna control unit and two Antenna head units. box IP56 box. issue of QST, “The K9AY Terminated Loop-A Compact, Directional Receiving Antenna,” by Gary Breed, K9AY. Construction Drawings . On the foreground is the newly designed Beverage control box (by Luc ON5UK). On top of the Drake MN2700 is the Top Ten band decoder, which reads the band data In many cases, especially when grounding for a K9AY system is inadequate, the pennant represents the best receiving-antenna solution at sites having limited space. Jan 31, 2014 · I recently built a K9AY homebrew receive antenna and wanted to share that it really works amazingly well. Another is when you are doing BC band DX. Figure 2: Twinlead Controller Box. Ameritron RCS-4 Remote Coax Switches are remote-controlled coax switches that select one of four outputs by supplying all control voltages through the coax. I intended to keep my existing Pennant control device and simply add a two relay control line and a pair of switches on the front of the unit to   K9AY loop; How does it work? Let's built it. The relay box will switch the load and feed point (with transformer) in   Include Ewe, Flag, Pennant and K9AY K9AY Control Box. Include schematics and info on a building the control box, preamplifier and low-pass filter Mark the null points on the controller box for each pair of loop directions. A 9:1 impedance-matching transformer is connected from one end of the loop to the ground and a terminating resistor is connected the other end of the loop to the ground. Assembled product with CONTROLLER - tested; PCB; Controller: Universal box for K9AY or 4-way Bi-Dir beverage system; LED direction indicator 0 or 45 deg. K9AY Loop antenn för (40), 80 och 160 meterFrom Array Solutions comes this control box AS-AYL-4 for assembling a low band receiving antenna in four directions based on the famous K9AY loop concept. The main category is K9AY loop Antennas that is about K9AY loop Antennas. Higher bottom wires = fewer decapitations. about the K9AY Loop System, which seemed to be a good alternative, and required much less space. 20 May 2012 Tentec Omni VII Control by Web Relays Gary Breed, “The K9AY terminated loop – A compact, directional Control Box, Hi-Z Amplifier. Beverage antenna. K9AY bias “T” and K9AY 9:1 XMFR Connect the RG-11 coax to the matching box. This is a receiving antennas for the low bands (160m, 80m and 40m). The PRE-2 includes a AO-Journal p638 : Antenna Dinamica - ham product Review - RF Tech Titanex V160 - Control box 21/02/08 - K9AY loop - Array Solutions 01/06/08. The Wellbrook loop is a very popular commercial loop antenna that works very well. The stainless steel base of the Receive Eight Circle Array Controller unit has weep holes to allow condensation that may build up inside the unit to leave. Available as. I am using the  thought I would ever need, and installed switch boxes for remote selection of amplifier – in this case, the PRE-2 from K9AY that can provide around 12dB gain. I intended to keep my existing Pennant control device and simply add a two relay control line and a pair of switches on the front of the unit to select either of the loops and to reverse whichever one is engaged. K9AY vactrol termination resistance and direction control. 3 – 7. It’s ideal for 1x10 antenna switches, k9ay look controller and it retains all other programs that were made in the SMCTL v1. cqham. Alternatively, a relay box could be used at the 'Antenna Farm' to reduce the number of feeder cables coming back to the antenna control box. 5A vacuum relay. Wellbrook claims that their K9AY is the only commercial version to offer: 1) Remote control variable termination for optimum front to back ratio. Rload variable in 9 steps by the switch on the front panel. Loop antenna usual delta configuration, operating-position control box, termination box with remotely-controlled ground resistance, inverted delta configuration: Loop antenna A loop antenna is an antenna primarily for the AM broadcast and the Longwave bands. Figure 4: Feedpoint Box (for Coaxially-Fed System) 1 Gary Breed, K9AY, array control, Figure 9 - Loop & Amplifier Loop Support Corner Amplifier Box Figure 8 presents photos looking down array axis from the end This is a classic K9AY loop design based on Gary Breed’s original design (easily found on the Internet) of two 85-foot loops at right angles with relays to switch direction, but there are some notable differences which I record here simply (I’m hoping) to add to the body of knowledge about the K9AY. g. The CM Choke. When the control box is not powered, in 'through' mode, or in TX state, the transceiver is linked to the TX-ant. K9AY antenna control board completed. Not visible in the photos is a garage roof tripod  Control box. I built a W7IUV-design preamp using the 2n5109 tonight. Music please, maestro. Left knob for choosing signal picking direction. The K9AY terminated loop array was first published in the September, 1997, issue of QST. OK5Z reaction to our article. Figure 6—Schematic of the control box located in the shack. The control voltage to operate the relays is delivered via the coaxial line. It accomodates a full size TX/RX 0. It offered directivity to remove or find signals and required smaller space than earlier EWE designs. Wellbrook Product News: The well known Wellbrook K9AY LF to 160m 4-Direction antenna is back in production and is available at a new lower price. Most hams in the US have them pointed NE, SE, SW and NW. an outdoor direction-switching relay box. Noise canceling systems Aug 08, 2014 · I have raised the bottom of the loops, to a more comfortable height for lawnmowing etc. Receiving Station Setup: Receivers: Antennas: Line / Antenna switchers: Lightning Full-size K9AY is a low-gain antenna : -23dBi of gain on 160m, -13dBi on 80m; And its performances are ground dependant. Waller flag. -loop dimensions-materials used-relay box-control box; Second Harmonic Optimized Low Pass Filter by W3NQN; Pre amplifier by W7IUV; Results; Conclusions; The K9AY loop on its first test: PACC February 2005. This control box has an adjustable RLC termination, which was just what I needed. Here some observations regarding this upgrade, in no particular order: Control cable: My K9AY used a single 5-wire cable. A 10-15 dB broadband amplifier is selected by a front panel switch on the control  This is the popular K9AY Loop receiving antenna, as described in the September 1997. a rotary Nulling Control and a five position rotary switch for . The relay box on the Spieth mast (connections on the bottom side) The control box. Dec 06, 2015 · I use the SDR with HDSDR to cat control my FT-450d. 5-2 MHz? dB: Phased array. ) Clicking "Create" generates all the appropriate End 1 and End 2 XYZ coordinates for all the wires that make up the element. East to Southwest, pure luxury during contesting! Thanks Luc! Use a spare alarm cable inner to send up a variable voltage to control a ‘vactrol’ (voltage-dependent resistor) to peak the rear rejection on any frequency you choose to listen to! Instead, send 12 or 13 volts up the coax (through a choke, of course!) to power a W7IUV pre-amp right at the k9ay loop itself. View of indoor control unit. Below 160, and above 80 it has very sharp rejection. I know there are some who did build their own. If you’re an expert on K9AY loops, please weigh-in. I can make 8 selectable directions. I use mine to connect an MFJ-1026 Noise and Interference Canceler, and a K9AY Loop Antenna control box. About K9AY Control Box The resource is currently listed in dxzone. My current K9AY is an amalgamation of parts removed from various equipment. The control box includes a 15 dB preamplifier The current K9AY relay box uses 4 wires to control the relays. com, the world's most trusted free thesaurus. Bob (K7TM) “Antenna Launcher #3” 5. ==> Optimum F/B on 160/80/40m ! Build the controller box;; Mark the null points on the controller box for each pair of loop directions. 29 feet, a = 0. I have again put my K9AY antenna , 1st test was to hear RADIO CAROLINE on 1368 kHz this week end 30 oct Best results with switch box @ 30cms gnd. htm 2008-10-13 The control box includes a 15 dB preamplifier with a bandpass filter covering the 160 and 80 meter bands, with excellent rejection of Broadcast Band signals and signals above 5 MHz. Phil switches between the loops with a K9AY Loop Control remote switch box that has an in-shack control box. The following is an S-meter reading of the noise during the day on Icom 756-ProII on the 160 meters band: we see that the lower load termination is better. Inside the shack I have the 2x J-type ferrites with 14 turns coax as a final common mode filter(see picture in the former message below). One of the dipoles is connected to the radio. sedxc. 2014. Newsletter Editor NB3C, Greg thanked all who sent info for the article about KA3LNG, Kurt (SK). John (K7KB) “Serial rotor control box” – but the internet connection at the library was not behaving. The forward antenna pattern is quite broad (K9AY states that the front/side ratio is about one 'S' point, i. • Put switch box at remote end of feeder, to minimise # of coax-runs • Buy remote switch, or build with open-frame or high power sealed relays & ip65 box. The 1. 3. K9AY NOISE freq. 33 Photo from ON4UNs Low Band DXing . Box 575 Edneyville, NC 28727 10 to 160 meters (include WARC bands) with 6 stations in CW, SSB and RTTY. In the screen grab below everyplace you see "316. The DXer supplies a 12vdc regulated linear power supply or battery (300ma draw), coax (50 or 75 ohm will work) between the interface and control boxes, loop wire, a supporting mast or other structure, and miscellaneous hardware as needed to complete the K9AY. Award-Winning Technology Bitdefender is a world leader in computer and internet security. all rights reserved ® The University of Texas Dallas uses your network username and password to login to Box. A view of the South K9AY antenna top. ==> As for all low-gain antenna, there could be some noise incursion (common mode issues). For contest use, directional control of antenna groups can be independent, through use of multiple identical control boxes. It always outperforms the transmitting antennas, in terms of Signal-to-Noise, when I am working DX (Location MO). Harold (AD7QJ) “Tennis Ball Antenna Launcher” 4. loops and N4GG Home-Brew Control Box. By default, The control box includes a 15 dB preamplifier with a bandpass filter covering the 160 and 80 meter bands, with excellent rejection of Broadcast Band signals and signals above 5 MHz. • N4RR VP8 Team Member; RG-6X Coax Cables, 75 ohm (for beverage ants K9AY Splitter to AS-RXFEP), F Connector to F Connector , Qty 3 10' and Qy 1 20', Qty 4 • N4RR VP8 Team Member; Type F Female Connector to UHF Male Connector, (for beverage ants K9AY Splitter to AS-RXFEP), Qty 4 (For the element lengths K9AY suggests 477/Freq (in feet) rather than the normal 468/Freq. 2 m high mast is needed to raise the wire antennas issue of QST, “The K9AY Terminated Loop-A Compact, Directional Receiving Antenna,” by Gary Breed, K9AY. Back outside. The K9AY behaves just like two short sloped verticals with the same phase shift. So, there is one driven element and 4 reflectors. Just being able to control the rear null tilt angle >however is worth running the second coax for me. They are used typically to increase or decrease voltage as it passes from one side of the device through the other. A recent design by Gary Breed, K9AY, produced a terminated loop antenna that can be electrically steered from a remote location. I can now switch instantly from e. K9AY loops The K9AY is terminated loop. Information On My K9AY Setup Without a doubt my Wellbrook Loop Antennas receive even on 30 meters better then any of my other antennas!! 17db Very Low Noise Amp/Control Box. This link is listed in our web site directory since Thursday Dec 12 2013, and till today " K9AY Control Box " has been followed for a total of 545 times. E. I built it from the 4th ed. The system provides a cardioid directional pattern in two directions. As previously outlined, the LPT port is less expensive and easier to accommodate – even if obsolete. Jan 03, 2020 · RF in the receive mode continues on to the K9AY control box that provides directional switching, broadcast band filtering and RF amplification if needed. Titanex V160 - Control box 21/02/08 - Lab Products Review-Babel Fish To Translate this page. You need only a 25 ft high by 30 feet horizontal space for one loop, using a 25 ft mast. K9AY Control Box Diagram from ON4UN’s Low Band DXing. 20 May 2017 Posts about K9AY antenna written by tboppre. 4GHz radio control receiver gets damaged -- as so easily happens when spinning propellers are involved. Beverage Antenna Added January 2009 Jan 28, 2004 · Each dipole is fed with a certain length of coax that comes to a central control box. See Fig 7-128. web; books; video; audio; software; images; Toggle navigation A well known variant is the K9AY loop, that uses two loops with a control box, that switches between loops and direction. com in a single category. Download the diagram to see how it's done. Modified the control box so power could be fed to remotely sited amps. The right switch can be on the TX antenna, the RX antenna on RX. Remotely manageable from our computer with any control software compatible with protocol 1. The control box includes a 15 dB preamplifier with a bandpass filter covering the 160 and 80 meter bands, with excellent rejection of Broadcast Band signals and signals above 5 MHz. That Shown above, unbalanced differential mode excitation of the center conductor without SWR adjustment. The box contains a few relays and a matching transformer (all the details are in the article above). The 8-relay USB PCB is mounted in the top cover along with a 12 VDC regulator to the right. Look for signals near the noise floor. The AYL-4 K9AY Loop System requires approximately 15 feet in four directions from the center of the antenna, plus additional distance depending on the guying method. Between shack and antenna is 100m of RG58 coax cable. Con un commutatore e 4 diodi si inviano ai due relais contenuti nel box alla base  Matches Beverages, BOG, Pennant, K9AY loops, FLAG, DHDL with Input impedance of Desktop Receive Antenna Switch, “DS4R”, 4 INPUTS, 1 OUTPUT. Epi Info is a free set of software tools for public health practitioners and researchers across the globe. Hence, I elected to retain the antenna per se but replace the electronics in the form of the remote antenna relay box and the in-station K9AY controller by Array Solutions K9AY Equipment Model AS-AYL-4. This is not needed if you don't use remote amps. In the normal case, I lock all antenna group directions to one box. This interesting feature makes the ground plane losses very low and generally this antenna has little dimensions. It resembles a Delta Loop, but is a very good directional receiving antenna. Figure 3: Coaxial Controller Box. This banner text can have markup. This box may have layout problems. 800-ICE-COMM (800-423-2666) Main Office 317-545-5412 Cust Serv (parts) 317-547-1398 Fax 317-545-9645 Telex I. Continue to login to Box through your network. The line may be a short one carrying audio or control signals between a computer and a radio, video between a computer and a monitor, noisy power wiring, or feedlines for antennas. RF feeder box: ONE versions for. The  The control box includes a 15 dB preamplifier with a bandpass filter covering the 160 and 80 meter bands, with excellent rejection of Broadcast Band signals and   The Control Keypads Fit Perfectly Alongside Your Keyboard! With this unit, you can select among Beverages, K9AY Loops, Pennants, Flags or other RX  From Array Solutions comes this control box AS-AYL-4 for assembling a low band receiving antenna in four directions based on the famous K9AY loop concept. As I’ve said before: it operates great on two neighboring amateur bands. It was a gift from low band enthusiast and overall nice guy ON4ATW. BTW is was cold outside! Connect control cable to motor. I chose not to connect   K9AY Loop Low bands 4 direction recieve antenna for DXing. Bot the control box / preamp and remote switch / terminating resistors are packaged and well  This article is how a K9AY switch-able receive antenna was built by Darren Switch Unit (SSU or the big box) and the antenna end the Antenna Relay Unit  As always I use Hardline coaxial cable (3/8'' for K9AY). 3 2008. September QST: The K9AY Terminated Loop—A Compact, Directional Receiving - Page 4 Jan 30, 2017 · The K9AY now produced by Array Solutions, there are two loops, set at 90 degrees from each other and a control box with relays switches the feed and termination side of the loops. After a little more research, I came across “Far Circuits”, which has the PC boards for the K9AY antenna switch board and bandpass filter/preamplifier board, at a very nominal price. This is still distributed capacitance critical with the left side having limited primary control of SWR, but it has better balance than the system with a floating center conductor and more symmetrical shield currents. K9AY. QUARTER WAVE 80 METER VERTICAL ANTENNA. The antenna wires enter the small black boxes. I've powered on all of my old vacuum tube gear (except an R-390A that I use several times a year) going through a protocol of leaving it on 90V, then 100, 110V each for an hour and finally the wall 120V. commercial version, each pair of loops (with the shared control box) is a complete phased array with a totally reversible pattern. Outdoor box assembly up left. On 160m it reduces the base noise level by 3-4 S units and makes the difference as signals both CW and LSB become intelligible. K9AY Switchbox . 450 Cypress Creek Road, Cedar Park, TX 78613 | Call 512-401-5000. Also there were taps switch S1 and two trap (L1C2 and L2C3) tuning to hindered broadcasting radio stations. Single Support Gain Antennas for 80 and 160 Meters. America) Pre-amplifier mounted and remote control head. Many BOG users employ a simple preamp to boost the low level of signal but often the switchable 'preamp' built into a receiver or transceiver will be enough to overcome the low gain of shorter wires. In addition, the control unit consists of a direction switch (8 directions, 4 directions for the 2-loop version), an Omni switch to select all loops, and a nulling control. Controlling the RX Antennas 4 directions with a Click of the mouse or a Hot Key… Priceless ! Pre Box S2 Digital, Amp Box S2, Essential III [2944x1965px, jpg] RPM 10 Carbon [1618x1080px, jpg] Tube Box S2, Amp Box S2, Pre Box S2 Analouge [1600x1080px, jpg] The User Account Control (UAC) settings in Windows 7 notify you before computer changes that require an administrator account are made. Here are the instructions for constructing the loop itself. With HDSDR + an SDR I can see an entire band, and tune the FT-450d with a click of my mouse. AY Technologies K9AY Loop Control & Relay Box AYLC-4C AYL-4R Loop Antenna | eBay My user ID on the site is Paladin1. BOGs need not be really long and good results can be had with just 200' of wire. . Solder relay, mount dishwasher, start program. I added the K9AY AYL-4 about a year ago and it has been a huge success here. The EWE. K9AY remote side view. This system provides a cardioid directional pattern in four different directions. NRC Publications - Reprints: National Radio Club, Inc. A phasing box and two antennas (one optimized to pick up the noise) is a better way to go than a K9AY. If I had space (I have 8 acres but that still was an issue) I would have done several 600' beverages as they would have been more cost effective. K9AY Receiving Loop Antenna Facebook. He pointed out in his article that the loop can really be any shape. Breed’s article described a system that didn’t require separate control cables for direction control. O. January 2009. Go to appliance dealer and try to get hold of a relay. Stainless connections screws. connected the K9AY control box to the control line and feedline from the antenna, and then  27 Dec 2013 We use beverage antennas to several directions, a K9AY loop and So every operator has his own console box to switch to the antenna he  Control panel. old Beverage control box was pressed into service. About 1/2 the way down the above ICE webpage, you’ll see that ICE offers their Model 180A matching box for $39 (plus shipping). Outputs can be controlled positively by using a UDN2981A (or TD62783) with a common ground, or with a negative control, using a ULN2803A with common +12 V. Another advance has been to combine sig-nals from external antennas in an adjustable desktop box to cancel the noise and leave the signal, assuming they arrive from dif-ferent directions. Box 473251 Aurora, CO 80047-3251 USA Active Loop Antenna Schematic the control for my K9AY loop (an old Heathkit cable-less antenna switch controller, a homebrew antenna selector box for fully-automated SO2R, and the direction control for my 80-meter array. I then did a voltage divider across the pot so that the full swing of the pot adjusts the Vactrol to my desired range (390-600). Mw loop antenna Mw loop antenna A Control Box for the K9AY Loop Antenna, OK1RR: Antenna Biconica: Antenna in ferrite per ol 10-500 KHz, IZ4BQV: Antenna in ferrite per onde medie, IZ4BQV: Antenna in ferrite per ricevitori portatili: Antenna induttiva ferrite 2 noRR: Antenna Induttiva onde MW LW: Aktive Loop Antenne, DD2NU: Antenna loopper ricezione onde medie, IK4CIE: Antenna receiver. Beverage on the ground. Important characteristics ; Lowest possible The open control box is shown with the 2 control PCB’s, a 12 VAC transformer, a 2 pole 8 position switch and a toggle switch to the left. I wanted a control box that looked more professional than I could cobble together. I am so very shocked at how good it is compared to my 1/4 sloper that is mounted on my tower. The original, single quarter wave vertical. Used to remotely change the termination resistance of the K9AY loop for 80 or 160. issue of QST, “The K9AY Terminated Loop-A Compact, Directional Receiving. The K9AY control. Check out innovative snow and ice removal equipment including snowplows and spreaders to make contractor's jobs easier and more efficient. Before first use give it a test at your shack with the coax you're using. I set up the shack controller and the antenna box on the bench with the full length of control line and figured out what currents and voltages corresponded to 390 ? 600 ohms on the Vactrol. Membership WA3BKD, Art gave the 1st reading for Gary Craig, no call yet. Boards are usually in stock for most of the Ham projects published in QST, QEX, ARRL Handbook, the old Ham Radio, 73's, Amateur Radio Today, CQ, WIFB Designer Notebooks, Popular Electronics, QRPp, QRP Notebook, Communications Quarterly, Electronics Now, and others. Low Band DXing. When I switch to the 8 circle he's Q5 copy with an S4 meter reading! “I managed to get my K9AY RAS-8x2 box hooked up so I could switch back-and- forth  Box with 2:1 transformer, input for Power supply and optional PTT (to switch to be able to use low-power output antennas such as a K9AY or a shielded loop. This application note focuses on the use of chokes on the feedlines of high power The K9AY behaves just like two short sloped verticals with the same phase shift. Buy Genuine Rain Master® parts, accessories, and other products online. and I have added a further two relays to the Control box. Aug 12, 2020 · AY Technologies K9AY Loop Control & Relay Box AYLC-4C AYL-4R Loop Antenna. I have provided key IN / OUT terminals for RX/TX control (PA) , preamp power, and SO-239 for the transceiver, TX antenna and K9AY. We’ve been members since 1996, and have a 100% positive feedback rating. Also the control cable and coax from shack are visible, the connections of the 3 control cables and gnd/13,8V to the controllers are made. Station Equipment Listing VP8 S. 10 Best HF Vertical Antenna Review in 2020 – Top Picks of Multi Band HF Antennas (No Radials, Tuning or Adjustments!) Loop Support and Array Control Loop Support, Direction Control Box, Hi-Z Amplifier • Loops as Identical as Possible • High Impedance Amplifiers - (Hi-Z Plus 6) • ac Coupled (loop dc short) • Single 510-Ω Termination • Flooded RG-6 Coax • DPDT Relay Switching • A 3’ Ground Stake at Loop Center The K9AY relay box is already made, and in the shack, I've already included the relay control inside my preamp + preselector box. It was invented by Harold Beverage in 1921. IP56 box. I have made two physical modifications to the original K9AY design. I put the 9:1 transformer into a simple electrical junction box. In front of Control box there are 4 LED and ON / OFF Switch. Check if the relays are actually working! K9AY Loop antenn för (40), 80 och 160 meterFrom Array Solutions comes this control box AS-AYL-4 for assembling a low band receiving antenna in four directions based on the famous K9AY loop concept. 00. These relays switch in extra resistors in parallel with the main terminating resistor. I found the problem. The K9AY comprises of an Antenna control unit and two Antenna head units. P. Software used to process and display the QRSS signals Provided By Alberto di Bene. There are two different types of loop antennas, one is the ferrite bar (as in your am HF 3-Band Yagi antenna. points and an omni-directional setting which engages both loops. Size 20x15 cm (feeder). ! ) I have raised the bottom of the loops, to a more comfortable height for lawnmowing etc. k9ay control box

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