Phased K9ay

2013 CMMC Double Delta The Double Delta is a "split" or "twisted" loop configuration leveraged off of the Double Half Delta Loop (DHDL) design of the TX3A Chesterfield Islands DXpedition. Low Band DX Antennas -Receive Only (RX) •On 160, your biggest issue will be hearing DX stations •I experimented with •Coaxial Loops •Single wire loops •Flags (EWE, K9AY and Pennant) •Phased verticals •And then I found the best -a modified K6SE Flag •By accident -I had my antenna switch to the wrong. A wire loop vs a flag or K9AY antenna might not provide best results. The design is the result of combining the. By Gary Breed, K9AY The 1<9AY Terminated A Compact, Directional Receiving Antenna ow-band operators are always looking for ways to improve their hearing. A 1000-foot Beverage, a 70-foot by 320-foot Broadside array, and a phased pair of 1000-foot Beverages fall between a factor of 12db and 15db. The array is bidirectional between EU-AS and NA-AF. 1 Four square - 10. The equipment we are going to take to St Barts. > K9AY loops > K9AY loop feeder with BPFs and preamp > RX antena - beverages and wire antennas acessories; HF SWITCHING/MATCHING > ANTENNA six to two switch > ANTENNA six to two switch 2 (Triplexer ver. Array Solutions manufactures RF power splitters and phasing systems for antennas and switching systems for antennas and radios and Baluns and Un-uns as well as transmission line transformers and two radio contesting switching devices. To enhance signal strength on a certain path you'd want to use directional antennas, especially ones that provide attenuation off the back, like a flag or K9AY. The output of the two K9AY antennas are combined using a phase tracking technique known as "Variable Cross-Fire" i. This is just a brief first impression of the new Wellbrook K9AY antenna trhat I am in the process of evaluating. But K9AYs have a broader pattern and reduced bandwidth. Just connect four receivers to one of the outputs. Antennae for the Low Bands. 8958333333333,0 UR5EQF log 3. Broadband capture drives the requirement for phased arrays that maintain a given directional pattern over a wide frequency range. Phased High Impedance VerticalsTwo or More 20 Foot Verticals. It also appeared that the improved TX antenna was now hearing most of what could be heard on the K9AY, although the K9Ay has a much lower noise floor and is usually much easier on the ears. For receive antennas, they had a beverage and a receiving loop (maybe a K9AY). Of course there is no doubt that this stick is not comparable to full size Beverages or full size RX loops like Delta, K9AY or even Hi-Z phased verticals array but be noted that we are looking for "makeshift" solution compare to noisy TX antennas !. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more. 0 Full sized beverage (1 wavelength) - 8. Lowband Receiving Antennas on a Very Small Lot (1/1) KY6R: I've tried a number of lowband receiving antennas on my. Station Equipment Listing VP8 S. The front to back is awesome, and I can hear it when I turn these and tune either a local 10 watt TIS station or a high power AM BCB in San Diego, about 440 miles away. A wire loop vs a flag or K9AY antenna might not provide best results. 4 Square K9AY by Bogdan, SP3RBR: 160 Meter Receiving Loop Project, K3ZXL My 40/30/20/17/15/12/10 meter phased vertical antenna system, W8DIZ: Pennant and Kaz. Phased Beverages 340 Snake or BOG Antenna 341 Receiving Loops 341 The EWE Antenna 358 Pennants, Flags, and the K9AY Loop 359 Practical Antenna Handbook. Note that overhead response is considerable for all of the bands that support NVIS. Rx antennas at IV3PRK: building and testing the Waller Flag From modeling to the real life, where there is no free lunch. I guess they may use 4 antennas, but two of them would have to be rotated 90 deg. 1 Four square - 10. Resources listed under K9AY Antenna category belongs to Antennas main collection, and get reviewed and rated by amateur radio operators. 4 Square K9AY by Bogdan, SP3RBR: 160 Meter Receiving Loop Project, K3ZXL My 40/30/20/17/15/12/10 meter phased vertical antenna system, W8DIZ: Pennant and Kaz. The diamond shape K9AY used was dictated by practical construction considerations rather than anything else. Four Square Vertical Phased Array-- From The Yankee Clipper Contest Club G5RV Multi-Band Antenna The G5RV antenna, with its special feeder arrangement, is a multiband centre-fed antenna capable of very efficient operation on all hf bands from 3. K9AY Loop controls, Preamps, Transformers and the RAS-8x2. license statement and disclaimer is in the Legal Notices section of this manual,. Location: Flamborough North Humberside. Gary Breed, K9AY, developed a receive loop system that takes up very little space. l'2 Koontz shows us how to build a compact, directional antenna—a design that quickly. Equipment to be used is mainly ICOM and YAESU for transceivers, ALPHA 99 for amplifiers plus two FL2100B and transistor amps as spare. The 80 and 40 m controllers are 4 square controllers) 2 element Phased array for 160 installed in the water or even better 160m 4-Square!!! Maybe ;-) Want to help in any way to do this? Please contact Krish, w4vku - vu2vku our team leader. 2 phased vertical (40m) vertical (30m) vertical (40m) vertical (80m) vertical (160m) multiband vertical (10,12,15,17,20,40,80m) K9AY (rx ant) We have built the setup for RUN, INBAND and MULTIPLAYER and the entire wiring for the Kenwood TS590SG 3x stations. This is the Homepage of Contestgroup PI4DX Hello and welcome to the website of PI4DX Contest Group "Zeeuws Vlaanderen" from the Netherlands. This loop replaced the K9AY loops in the summer of 2014 and while this station has historically demanded a switchable cardioid pattern from the receive arrays, the performance of this antenna has been very good during late summer tests (Note I still have a K9AY loop in 2017 and it works quite well at 630m). It is switchable in four directions, NE, SW, SE, NW. No radials. loop links list ( at bottom page )-The EWE in the Garden. The International Amateur Radio Union (IARU) has welcomed the St. I soon wrote a rather glowing in-use review of the Wellbrook K9AY and have corresponded with Andy. Here we will discuss the very basics of antennas. This is an excellent article for both novices & experienced DX'ers for DX'ing the crowded Local Channels "Graveyard Channels" 1230, 1240, 1340, 1400, 1450 & 1490. No news for long time, but we are still working on new parts 🙂 - mo re LNBs not only for QO100 with TCXO - cmcc filter for coax and ctrl cable - preamp box with protections - bias tee with var Att for that - phased end-fire beverages - new SO2R multibeaming switch for 10 antennas And more 🙂 See More. A clear example is illustrated in the table above. NRD-525/535, modifications by Thomas Nilsson (in English) Pühler-Electronic Modifications and Active Antennas for NRD-525/535 series: NRD-525, Edvis phase locked AM & IF filter board, user review by Rafael Calabuig : NRD-525, schematic & PCB layout for Edvis phase locked AM & filter option. The PI4DX contest group is a pretty active group of contest enthusiastics HAM's. 2λ has a gain of -3. As a low-band fan, I was impressed with the EWE antenna developed by Floyd Koontz, WA2WVL. Two Phased Wellbrook ALA1530LNP Loops = 9 dB RDF 27 dB F/B. And yet, the humble ferrite rod antenna has the sharpest nulls of all and, whats more, is infinitely and so easily steerable by be rotating the rod. Extensive listening tests confirmed that these patterns are readily achieved with two K9AY Loop crossed pairs, constructed to be as identical as possible, and with no special "tweaking. A Contest for Every Type of Ham Operator! The ARRL 160 Meter Contest has always attracted serious contesters and avid 160. Antennas such as the four-square and two-element end-fire arrays have all been used with short, lossy vertical elements, to provide highly-directional, low-noise receive antennas for the lower HF and MF bands. Personally, I also added a switch for each input allowing me to connect them to ground when I'm not DXing. Base or mobile. A decent lowband receiving antenna (like multi phase staggered beverages) requires real estate and/or extensive hardware and trimming (6-9 Circle). Antennae for the Low Bands. "Zeeuws-Vlaanderen" is the very lowest part of the province "Zeeland" located to the Belgian Border. loop links list ( at bottom page )-The EWE in the Garden. We do layout of the foil sided(s), solder mask, and component legends, and documentation. In early April 2009 I decided that I would put up a single quarter wave vertical and try out the band. To all others who contributed to the development of this antenna family, my thanks also. Wellbrook Phased Array By John Bryant, Summer 2008 I became acquainted with Andy Ikin, the guru of Wellbrook Communications five or six years ago when I purchased one of the first of Wellbrooks extraordinary K9AY antennas to reach North America. I can run the FT1000MP barefoot into this antenna and the SWR does not show higher than 1. Look at the Slinky Beverage, BOG, K6SE's Terminated Delta Loop , Waller Flag, K9AY, Flag, EWE, or Loop antennas. The magnetic loop is a close second and the phased verticals a distant third. K9AY Loop Requires preamp (10-20 dB) Single ground rod ok for normal soil Disconnect from rcvr when transmitting Nearby metal or antennas affect pattern 27 Beverages and Receiving Antennas January 2015 Suggest burying or decoupling feed line See K9AY QST articles and website - www. The antenna system will eventually configured as a K9AY array but is presently setup as resonant loops phased by a VK5BR type system. 80 and 160m. Phased Arrays Gary Breed, K9AY. The resulting phase is 180+ -22 = 158 degrees phase shift with the junction of 1 and 2 lagging phase from the junction of 3 and 4. SAL-30 Antenna and other low band RX antennas. 2 vrtical in phase for 30mt in CW - N. Each type of antenna will eventually have its own page. For our contest group PA6Z we needed some good receiving antennas for the low bands (160m, 80m and 40m). 2 Very long phased beverages - 13 Again, I skipped a bit and summarized on the above table so you can get a general picture of where commonly used receive. This construction modify a conventional four-square to provide eight directions of fire instead of the normal four. To the left is the RAS8 beverage selector. And many use separate antennas for receiving; those with the room use Beverage antennas (or phased short verticals), and those with smaller lots use K9AY loops or similar antennas. 8-element, eight direction-switchable arrays based on a 4-element end-fire/broadside combination of terminated loop elements. Pair of phased 4 sqs (8 self supporting BX towers with attached masts) Phased NE and SW. Some Ham Links DX Sumit by Radio Arcala 160m K9AY Direct. CQWW 160m CW 2014 TF4M heard on Four-Square 4x40m receiving antenna K9AY eight phased frames system designed by Bogdan SP3RBR Significant Front to Back ratio. Of course there is no doubt that this stick is not comparable to full size Beverages or full size RX loops like Delta, K9AY or even Hi-Z phased verticals array but be noted that we are looking for "makeshift" solution compare to noisy TX antennas ! Interesting resultsisn't it? What do You think about it?. It's probably easier if they're the same type, so they respond similarly to incoming waves. I was looking to hear the next layer of signals on 160 that the K9AY loops were not, I did not reach my goal. A Contest for Every Type of Ham Operator! The ARRL 160 Meter Contest has always attracted serious contesters and avid 160. Antennas (TX) used 1 x 5 band Spiderbeam 3 x 2 el VDA (20m, 17m & 12m, 15m & 10m) 1 x GP7 Multiband Vertical Phased verticals for 30m, 40m and 80m Inverted L for 160m 3 el. The average F/B for LW was 15. A new K9AY for RX was also added to the mix just before these changes to the TX antenna. The formula for that relationship is: [Eq 1] where ϕ n is the phase delay required for the n-th element, "n" is the element number, and "spacing" is the distance between. Analytical calculations were carried out to determine the critical antenna dimensions and the design was optimized using a 3D electromagnetic finite-element solver. 80 and 160m If you listen to the DX activity on the Low bands, you'd be forgiven for thinking that you're wasting your time unless you have a 4 Square Array, 20 acres of Beverage antennae, a huge Amplifier, and a neck like an anvil. Some times the K9AY was better and some times RBOG was better in the directions it was pointed. As a low-band fan, I was impressed with the EWE antenna developed by Floyd Koontz, WA2WVL. If I had to pick one receive array of my three current ones… hmmm, it would really be a tough call. arrays such as the phased dipoles of K6STI and the EWE and loop-style K9AY and Flag antennas that act as a pair of short ver - ticals were a step forward. I have two loops phased with. The resulting phase is 180+ -22 = 158 degrees phase shift with the junction of 1 and 2 lagging phase from the junction of 3 and 4. He can hear signals down in the weeds on the listening loop, and they can hear him running power. As a low-band fan, I was impressed with the EWE antenna developed by Floyd Koontz, WA2WVL. The K9AY is proving to be a pretty good receiving antenna though I do think it is a little too close to the house. "The Square-Four Receiving Array", by Gary Nichols, KD9SV, John Goller, K9UWA, and Roy Lewallen, W7EL, ARRL Antenna Compendium, Volume 3 (1992), published by ARRL. All of the K9AY loops can be used on both 160 and 80 meters, although optimal performance may require slight adjustment of the terminating resistance, as K9AY pointed out in his article. A wire loop vs a flag or K9AY antenna might not provide best results. ⚫ K9AY Array ⚫ Shared Apex Loop Array ⚫ 8 dB: Pair of 250 to 400 foot staggered Beverages about 7 feet high ⚫ 9 dB: Two phased short verticals with 60 to 80 foot spacing ⚫ 9 dB: Triangle array of phased short verticals with 60 to 80 foot spacing ⚫ 11 dB: Vertical Waller Flag Small antennas are the best RFI reduction antennas. Some Ham Links DX Sumit by Radio Arcala 160m K9AY Direct. Here is a snapshot taken out of my antenna tower. The average F/B for LW was 15. Later this year I intend to move it around the side of the house where it will be more in the open and, hopefully, will perform even better. Our plan is to voyage first to South Georgia Island. Nonetheless, I've had some remarkable loggings not possible without the ability to phase against my Quantum QX pro loop. 2λ has a gain of -3. Phased Spaced Antennas (HTML / GIF's) Flag Antenna Construction and Test Results (HTML / GIF's) New Termination Control Method for Flag, Pennant, and similar Antennas (zipped DOC, drawings) TMB-1 Tri-Mode Buffer Amplifier Box (HTML / GIF's) FCA-1 Feedline Coupling Adaptor ; Remote Termination of Beverage and Ewe Antennas. My K9AY RX Antenna. The Kongsfjord Quad Delta Flag Array In my home town Berlevåg I had quite some success with a Wellbrook K9AY which I could phase to reduce interference from the. The K9AY is terminated loop. 8dB and MW was 30dB. This site is run by the voluntary membership of the BT Martlesham Radio Society, affiliated to the Adastral Park Sports and Social Committee. The Waller Flag has the pattern of a one-wavelength-long Beverage and can be even mounted on a tower and rotated. The four-square phased-vertical array if used by many contesters and DXers for oreration on the low bands. Some Antenna related software links: AC6V Antennas links (a lot of antennas links) AC6LA (antenna modeling software) W8JI Receiving antenna design (and much more) JE3HHT (MMANA antenna software and more) Diversity reception by K3KY (why DX in stereo?). Additionally, we offer a Confidential service for authors writing articles that may require a printed circuit board for their project. arrays such as the phased dipoles of K6STI and the EWE and loop-style K9AY and Flag antennas that act as a pair of short ver - ticals were a step forward. And the footprint can't be beat. We tested the gear and it worked perfect. In an end-fire configuration this generally requires two identical antennas spaced 1/12 to 1/3 wavelength along the null axis. 3 ele 80M yagi (modified M2 with W6ANR coils) at 130' on existing star Philly guyed 55G tower. Note that overhead response is considerable for all of the bands that support NVIS. Quad element turned horizontally on its side Full size 540', fed with 4:1 balun and coax, 8' up on insulated supports. The phase angles shown are for normal operation (northeastern pattern, K1 off); energizing K1 flips the pattern to the southwest by phasing the northeastern loop at -225° and the southeastern loop at -135° relative to the center loop. Compared to phased verticals and beverages the K9AY has one big advantage; its high angle front-lobe brings you 'little pistols' in the short to medium distance. 80 foot element spacing for improved 160 meter performance. K9AY; K6STI and the winner for small lot; rocky soil is-> the FLAG antenna as designed by Earl, K6SE. Lowband Receiving Antennas on a Very Small Lot (1/1) KY6R: I've tried a number of lowband receiving antennas on my. Two Phased Wellbrook ALA1530LNP Loops = 9 dB RDF 27 dB F/B. A 1000-foot Beverage, a 70-foot by 320-foot Broadside array, and a phased pair of 1000-foot Beverages fall between a factor of 12db and 15db. com Phased Array Medium Waves Ham Radio Antenna Warren Buffett Hams Circuits Radios Ants Wi Fi. By Gary Breed, K9AY The 1<9AY Terminated A Compact, Directional Receiving Antenna ow-band operators are always looking for ways to improve their hearing. 3 ele 80M yagi (modified M2 with W6ANR coils) at 130' on existing star Philly guyed 55G tower. Location: Flamborough North Humberside. Minicircuits splitter for diversity?. 80 and 160m If you listen to the DX activity on the Low bands, you'd be forgiven for thinking that you're wasting your time unless you have a 4 Square Array, 20 acres of Beverage antennae, a huge Amplifier, and a neck like an anvil. This year I had to honor to be invited by the Qatar Amateur Radio Society (QARS) to operate the CQ WW SSB contest with them. No umbrella wires. Figure 7 shows the pattern from Figure 4 steered by about 3°. The K9AY gain was typically 10dB higher on LW and 15dB higher on MW. #smallYellow 1 16. Broadband capture drives the requirement for phased arrays that maintain a given directional pattern over a wide frequency range. The station set up in a fieldday style on the northern tip of Qatar, about 100km way from the capital Doha. In a word, super! There is no question that in many cases the front to back on the loops is superior to a pair of slopers and I've not run into any situation yet where it was worse. loop links list ( at bottom page )-The EWE in the Garden. Our plan is to voyage first to South Georgia Island. closer spacing is possible by using a variable phase combiner. Spacing must be at least be 1/2 wl or more for phased Beverages to add noticeable improvement to reception. I soon wrote a rather glowing in-use review of the Wellbrook K9AY and have corresponded with Andy. The numbers suggest that a good configuration would be a pair of K9AY arrays (4 total loops), with end-fire orientation in the preferred direction. It also appeared that the improved TX antenna was now hearing most of what could be heard on the K9AY, although the K9Ay has a much lower noise floor and is usually much easier on the ears. In an end-fire configuration this generally requires two identical antennas spaced 1/12 to 1/3 wavelength along the null axis. K9AY loop - 7. 7 Very long beverage (1. Results of the 2010 ARRL 160 Meter Contest By Gary Breed, K9AY. The new K9AY Phased Array (Summer 2009) It was simply a matter of time, I guess, until Andy Ikin of Wellbrook began to phase two loops together that were already, themselves, quite directional, thus double-dipping for truly FINE F/B ratios. Phased Flag Arrays N4IS- Effect of 80 m bpf on signals from a K9AY loop. 暖かな陽気に誘われてK9AYアンテナを久しぶりに復活させました。 ポールのトップで約7. Same as v1, but 10 keys + k9ay program. Here is my answer to your question about a comparison between a K9AY four square and that of a full size four square on 160 meters. The 9:1 impedance ratio is ideal for Beverages, K9AY loops and other antennas with feedpoint impedances in the 300-1000 ohm range (see specifications below). Phased Beverages 340 Snake or BOG Antenna 341 Receiving Loops 341 The EWE Antenna 358 Pennants, Flags, and the K9AY Loop 359 Practical Antenna Handbook. I want to build a new transmit antenna but how do I know how much power I need to make the ERP limit? The ON4KST "kHz" logger / chat: a game changing tool in the pursuit of MF and LF QSO's. A recent posting on the Yahoo ndblist Group page, by veteran LF/MW DXer and front-end guru, Steve Ratzlaff (AA7U) in Oregon, described his thoughts on LF/MW antennas and his experience with phasers: Some years back at the other place, I experimented with phasers, trying all the various ones I could find or build. K3NA 3-loop array: • Low-band RX antenna o 160m & 80m o Insensitive to out-of-band signals o Tolerates wide range of ground conditions • Compared to optimized, full-size beverage:. K9AY is a 28' delta, KAZ is 10' x 40', Super KAZ is 28' x 112' I also rechecked the front-to-back ratios of each KAZ antenna, again at high noon, again using KGGF, Coffeyville, KS, 690 kHz as my target. Array Solutions manufactures RF power splitters and phasing systems for antennas and switching systems for antennas and radios and Baluns and Un-uns as well as transmission line transformers and two radio contesting switching devices. They are easy, small, and inexpensive, even if noticeably less directive than two optimally phased driven verticals. com for detail info. Monoband or multi-band. This year I had to honor to be invited by the Qatar Amateur Radio Society (QARS) to operate the CQ WW SSB contest with them. Upgrade all 2 element Phased arrays (80, 40, 30) to 4 Squares!! (30m is a 2 element Phased array controller. It's probably easier if they're the same type, so they respond similarly to incoming waves. This is an excellent article for both novices & experienced DX'ers for DX'ing the crowded Local Channels "Graveyard Channels" 1230, 1240, 1340, 1400, 1450 & 1490. A decent lowband receiving antenna (like multi phase staggered beverages) requires real estate and/or extensive hardware and trimming (6-9 Circle). "Phase Adjustment Techniques for a 4-Element Square Phased Vertical Array", by Lahlum, March 1991 QST, page 39. 暖かな陽気に誘われてK9AYアンテナを久しぶりに復活させました。 ポールのトップで約7. In a word, super! There is no question that in many cases the front to back on the loops is superior to a pair of slopers and I've not run into any situation yet where it was worse. 6 Two phased verticals - 9. 7 Phased short beverages - 7. K9AY 4 Direction Loop. The National Radio Club Publications Center. No matter what type of antenna or antenna system you need, you’ll find it at DX Engineering. 7 Very long beverage (1. 3 acre lot - where I have about half of that "acreage" to play with as far as antennas go. Pair of phased 4 sqs (8 self supporting BX towers with attached masts) Phased NE and SW. I also tried the K9AY using the KAZ size loop. Of course there is no doubt that this stick is not comparable to full size Beverages or full size RX loops like Delta, K9AY or even Hi-Z phased verticals array but be noted that we are looking for "makeshift" solution compare to noisy TX antennas !. This allows for use of the antenna for communications both at DX angles and within the skip zone. Compared to the K9AY, it is a winner for me. Part 2: The documentation of an unsuccessful work By Pierluigi "Luis" Mansutti IV3PRK The Waller Flag construction In the second half of September a big storm broke a fiberglass spreader of the existing. 5 meters) of linear space, and so it. I am QRV with 1 KW and a Cushcraft X9 (4el 20m, 4el 15m, 6el 10m) also an other 4 el 12m monobander, 1/4 lambda vetical 30m, 4 sq 40m, 4sq 80m, a tiangular phased inverted L 160m+K9AY for RX. Improving Performance of Arrays of K9AY Loops Richard C. The red circle on wire 1 is a source , which is where we will connect the transmitter to the loop. I have discovered however, that even with subtle differences observing propagation condx on a determined freq. CQ World Wide DX SSB Announced Operations October 27-28, 2012 [[Submit a DXpedition] Click on the CQWW and CQZ column headers to view operations in order by CQWW entity and CQ zone respectively. In summer 2008 I acquired the hardware for a K9AY RX loop. Home of the AM Press/Exchange, The AM Forum (the largest BBS of it's kind),and The AM Classifieds, Photos, Audio, and technical information. The K9AY has been in many of our contest and/or fieldday setups. I will not enter into theory, those antennas are widely explained in details on the web. The magnetic loop is very good antenna, with the lowest of low footprint and space requirements. A lot of info can be found on internet, and especially in the must read "low band dxing" by ON4UN. The basic phase relationship between the RF signals at the transformer input and output ports may be in - phase, 0 degrees, or out-of-phase, 180 degrees. 8958333333333,0 UR5EQF log 3. A view of the South K9AY antenna top. SAL-30 Antenna and other low band RX antennas. 3: A popular low noise receiving antenna used by Low Band operators is the EWE, Flag and K9AY antennas. Bank transfer : 7 ANT RX splitter system; This is the box which allows you to split (up to 7) RX antennas to 2 RX. The Waller Flag has the pattern of a one-wavelength-long Beverage and can be even mounted on a tower and rotated. If you listen to the DX activity on the Low bands, you’d be forgiven for thinking that you’re wasting your time unless you have a 4 Square Array, 20 acres of Beverage antennae, a huge Amplifier, and a neck like an anvil. However, if you live in a high man-made noise area, it could really help. 80 and 160m. Georgia Island. Four Square Vertical Phased Array-- From The Yankee Clipper Contest Club G5RV Multi-Band Antenna The G5RV antenna, with its special feeder arrangement, is a multiband centre-fed antenna capable of very efficient operation on all hf bands from 3. I was expecting a little better performance, although I may have not had large enough common mode chokes on the two coax cables. Active receive antennas will be with me for the rest of my radio days, even if I have large amounts of space for antennas in the future. As a low-band fan, I was impressed with the EWE antenna developed by Floyd Koontz, WA2WVL. THE DEFINITIVE ANTENNA REFERENCE--FULLY REVISED AND EXPANDED! Design and build your own antennas with the help of this unique guide. Of course there is no doubt that this stick is not comparable to full size Beverages or full size RX loops like Delta, K9AY or even Hi-Z phased verticals array but be noted that we are looking for "makeshift" solution compare to noisy TX antennas ! Interesting resultsisn't it? What do You think about it?. We will then voyage South to South Sandwich, one of the harshest places on earth. The Shared Apex Loop Array pattern resembles that of a 4-square phased vertical array. An efficient Magnetic Loop Antenna has a very high Q. The basic antenna The most basic antenna is called “a quarter wave vertical”, it is a quarter wavelength long and is a vertical radiator. Austin, TX. EWE's, Flags, Pennants, and K9AY loops are effective methods of building two-element broadband vertical arrays. The station set up in a fieldday style on the northern tip of Qatar, about 100km way from the capital Doha. In the aqua colored areas, we can follow comparisons between a single 1. Later this year I intend to move it around the side of the house where it will be more in the open and, hopefully, will perform even better. I also tried the K9AY using the KAZ size loop. A new K9AY for RX was also added to the mix just before these changes to the TX antenna. 2 vrtical in phase for 30mt in CW - N. The output of the two K9AY antennas are combined using a phase tracking technique known as "Variable Cross-Fire" i. The antenna combines magnetic (H) and electric (E) field reception in order to create a directive radiation pattern. Since the K9AY is not an omni antenna, I guess the configuration is not really 4 square. The K9AY loop wires can be seen terminating into the relay box. Antenna Projects From The YCCC-- Click On Articles -- Double-L For 80/160, Two Wire Beverage, A Poor Man's 160 Meter 4-Square, Using a 4 square Vertical Phased Array to improve your 80 and 160 meter signal, -- From The Yankee Clipper Contest Club Antenna System Evaluator-- From KD6DKS. Spacing must be at least be 1/2λ or more for phased Beverages to add a reliable improvement in reception quality. 8dB and MW was 30dB. 2013 CMMC Double Delta The Double Delta is a "split" or "twisted" loop configuration leveraged off of the Double Half Delta Loop (DHDL) design of the TX3A Chesterfield Islands DXpedition. Phased Beverages 340 Snake or BOG Antenna 341 Receiving Loops 341 The EWE Antenna 358 Pennants, Flags, and the K9AY Loop 359 Practical Antenna Handbook. From 10-25 March 2020 an international team of 10 operators will be active from Swains Island as W8S. The red circle on wire 1 is a source , which is where we will connect the transmitter to the loop. Results of the 2010 ARRL 160 Meter Contest By Gary Breed, K9AY. And as the 160m season heats up this winter, the noise level of the house with the attic 160m dipole was a serious limitation to doing any real work on that band. "Zeeuws-Vlaanderen" is the very lowest part of the province "Zeeland" located to the Belgian Border. Schafer, KA4PKB Auburn, AL Dayton Hamvention, May 18, 2012 [email protected] Some Ham Links DX Sumit by Radio Arcala 160m K9AY Direct. --- Dedicated to low-band receiving antenna design using arrays of K9AY loops ---Details of the original triangular terminated loop design by Gary Breed (K9AY) can be found through the following links: Original K9AY Loop Design [1] Original QST Article [2] In my location with poor ground conditions, the K9AY loop seems to offer the best. We will then voyage South to South Sandwich, one of the harshest places on earth. The NCC-2 is primarily designed for 500 kHz to 15 MHz use, although the useful operating range extends from below 300 kHz to 30 MHz. The array is bidirectional between EU-AS and NA-AF. I also tried the K9AY using the KAZ size loop. Ted Rappaport, N9NB. If you listen to the DX activity on the Low bands, you'd be forgiven for thinking that you're wasting your time unless you have a 4 Square Array, 20 acres of Beverage antennae, a huge Amplifier, and a neck like an anvil. In simplest terms, these antennas are very small phased. The Shared Apex Loop Array pattern resembles that of a 4-square phased vertical array. Too close but there was no alternative. is in the Legal Notices section of this manual, Third Party Software Legal Notices. I put it up too close to the tower and the TX antennas. The magnetic loop is a close second and the phased verticals a distant third. Stack of 3 ele 80M yagis on 340' Pirod guyed tower. The K9AY Loop Antenna: A Directional E-H Antenna for HF - rtl-sdr. FAR Circuits can also provide custom layout for printed circuit boards when required. Often the BS/EF is better than the long phased Beverages — time will tell if one or the other becomes the dominant receive antenna here. By Gary Breed, K9AY The 1<9AY Terminated A Compact, Directional Receiving Antenna ow-band operators are always looking for ways to improve their hearing. K9AY 4 Direction Loop. D35: “DX'ING THE GRAVEYARD CHANNELS*” By Les Rayburn N1LF. My TX Antennae. Four Square Vertical Phased Array-- From The Yankee Clipper Contest Club G5RV Multi-Band Antenna The G5RV antenna, with its special feeder arrangement, is a multiband centre-fed antenna capable of very efficient operation on all hf bands from 3. On LW the F/B was the same as the K9AY. of using a Wellbrook ALA 1530 Loop antenna ? Could you please let me know your opinions on I am getting a K9AY but Phased ALA1530's early results. Two K9AY loop system is super By Al Merriman - K4GLU July 4, 1998 The two loop system is up and running. arrays such as the phased dipoles of K6STI and the EWE and loop-style K9AY and Flag antennas that act as a pair of short ver - ticals were a step forward. This quickly becomes very frustrating, especially if you, like me, like to tune up and down the bands to see what is going on. Martin (2E1FVS), my junior op, looking very pleased with himself after getting the phased verticals ready for testing. I put it up too close to the tower and the TX antennas. Phased verticals for 30m, 40m and 80m Inverted L for 160m 3 el. The first issue of Shortwave Bulletin dates back to the Summer of 1961! Many of the world´s best and most experienced DX'ers have been and are still members and contributors. Vertical or directional. K9AY loop - 7. Loops are nice in that they can be small and are relatively ground independent. K9AY Loop controls, Preamps, Transformers and the RAS-8x2. The K9AY is terminated loop. My K9AY RX Antenna. On LW the F/B was the same as the K9AY. D35: "DX'ING THE GRAVEYARD CHANNELS*" By Les Rayburn N1LF. K9AY loops and / or beverages are planned as low-band receiving antennas. loop links list ( at bottom page )-The EWE in the Garden. The K9AY Phased Array can be expanded to use four K9AY antennas to provide 360 degree coverage. The performance for each band is remarkably similar. K9AY RAS-8x2 Switch manual: PJ2T RX 4-Square Feedlines Lengths (PDF) PJ2T DXE 4-Square Budget (PDF) PJ2T RECEIVE ANTENNA MAPS : PJ2T Single Pennant: DX Engineering 4-Square Realignment Plan (PDF) DX Engineering : RFS-1P Receive 4-Square Instructions (PDF) PJ2T Phased Pennants: PJ2T Receive Antennas (Permanent). Here is my answer to your question about a comparison between a K9AY four square and that of a full size four square on 160 meters. K9AY Array Shared Apex Loop Array 8 dB: Pair of 250 to 400 foot staggered Beverages about 7 feet high 9 dB: Two phased short verticals with 60 to 80 foot spacing 9 dB: Triangle array of phased short verticals with 60 to 80 foot spacing antennas when your RFI sources are within Small antennas are the best RFI reduction. The station set up in a fieldday style on the northern tip of Qatar, about 100km way from the capital Doha. On the air however, I find that my Wellbrook ALA1530LNP loop works well when used in the K3's diversity reception mode. Transmitting or receiving. It is switchable in four directions, NE, SW, SE, NW. I’m looking forward to really testing the antennas this 160m DX season. Phased High Impedance VerticalsTwo or More 20 Foot Verticals. Upgrade all 2 element Phased arrays (80, 40, 30) to 4 Squares!! (30m is a 2 element Phased array controller. For receive antennas, they had a beverage and a receiving loop (maybe a K9AY). K9AY loop - 7. In simplest terms, these antennas are very small phased. Multi-Element End-Fire Arrays of K9AY Loops Richard C. As an SWL antenna it would have been nice but it was just too close to the QRO TX stuff to keep the coupling and RF pickup manageable. Austin, TX. Home of the AM Press/Exchange, The AM Forum (the largest BBS of it's kind),and The AM Classifieds, Photos, Audio, and technical information. Upgrade all 2 element Phased arrays (80, 40, 30) to 4 Squares!! (30m is a 2 element Phased array controller. The grabber is presently listening on a bearing toward Japan. Conditions are not good this morning and he's peaking about S5/S6 on the TX four square but takes long, deep fades down to S0, occasionally. Dave W0FLS Today is my first epiphany experience with the 8 circle with the new amps. The K9AY Loop Antenna: A Directional E-H Antenna for HF - rtl-sdr. I'm sitting here listening to TX7M on 1831. 4 Square K9AY by Bogdan, SP3RBR: 160 Meter Receiving Loop Project, K3ZXL My 40/30/20/17/15/12/10 meter phased vertical antenna system, W8DIZ: Pennant and Kaz. Next is the 8 element Hi-Z receive antenna (hardly visible). Click on a photo for a larger image or use the Slide Show button SLIDE SHOW. Antennae for the Low Bands. Two Wellbrook ALA1530LNP loops phased at 215 degrees with the NCC-2. 1/7/2012 The half size active dual flag array described in the graphic above requires only 100' (30. Jaeger, K4IQJ Robert L. Extensive listening tests confirmed that these patterns are readily achieved with two K9AY Loop crossed pairs, constructed to be as identical as possible, and with no special "tweaking. Austin, TX. Antenna Projects From The YCCC-- Click On Articles -- Double-L For 80/160, Two Wire Beverage, A Poor Man's 160 Meter 4-Square, Using a 4 square Vertical Phased Array to improve your 80 and 160 meter signal, -- From The Yankee Clipper Contest Club Antenna System Evaluator-- From KD6DKS. license statement and disclaimer is in the Legal Notices section of this manual,. K9AY 80/160 Meter Switchable Loop Antenna System After operating a couple 160 Meter contests last Winter, I realized I needed to do something to improve my receiving performance. Wider spacing improves null depth off the sides, and narrows front lobe. SOME FIELD INFORMATION ON THE DOUBLE‐DELTA (D‐KAZ) ANTENNA Revised 062714 (This supplants an earlier report dated 06. 8958333333333,0 UR5EQF log 3. Here is my answer to your question about a comparison between a K9AY four square and that of a full size four square on 160 meters. Upgrade all 2 element Phased arrays (80, 40, 30) to 4 Squares!! (30m is a 2 element Phased array controller. com May 19, 2007. It is switchable in four directions, NE, SW, SE, NW. license statement and disclaimer is in the Legal Notices section of this manual,. com for detail info. Separate primary and secondary windings allow 180-degree phasing for easy implementation of inline or staggered phased arrays. Phased Verticals and Beverage Systems The NCC-2 is an adjustable phasing network that combines two. I will not enter into theory, those antennas are widely explained in details on the web. They are easy, small, and inexpensive, even if noticeably less directive than two optimally phased driven verticals. I also tried the K9AY using the KAZ size loop. Antenna Comparison of Beverage antenna,magnetic loop antenna,and phased vertical receiving. Antennas (TX) used 1 x 5 band Spiderbeam 3 x 2 el VDA (20m, 17m & 12m, 15m & 10m) 1 x GP7 Multiband Vertical Phased verticals for 30m, 40m and 80m Inverted L for 160m 3 el. The 80 and 40 m controllers are 4 square controllers) 2 element Phased array for 160 installed in the water or even better 160m 4-Square!!! Maybe ;-) Want to help in any way to do this? Please contact Krish, w4vku - vu2vku our team leader. K9AY 4 Direction Loop. Click on a photo for a larger image or use the Slide Show button SLIDE SHOW. The Array Solutions system can be instantly switched.