23 Cm Biquad Antenna

Antennas Direct ClearStream Eclipse Putting the "bunny ears" aside, the Antennas Direct ClearStream Eclipse is the most distinctive-looking antenna in our indoor antenna lineup. 4 LW Where: Length (L) and Width (W) are in cm 3. It is used by radio amateurs on the HF and VHF amateur bands. antenna (red curve) and the 7-cm antenna without matching circuit. Our line of TV antennas are the world's most comprehensive and powerful antennas you can find. Cubex currently offers Cubical Quad antennas for 70 centimeters through 40 meters. I have one made for each TV in my house, 5 total. With a heritage in over-the-air antennas specifically tuned for core DTV frequencies, Antennas Direct has invested major resources into the discovery and implementation of. You can find it in description of antenna (manual) or by looking at the diagram. com] DOI 10. Untuk membuat klem antenna, potonglah pipa PVC diameter 1/2″, panaskan lalu di-press panjangnya kira2 12 cm. 11ac transmission standards for consistent performance when used with existing wireless switches and routers. since I'm not willing to either open up and mod my router nor spending >$50 for a good external antenna for my desktop, i thought i'd construct my own WLAN antenna. For the television bands UHF, TNT and analogy Secam and PAL, the biquad antenna (double or quad) and quadriquad is built on the basis of one side of 12 cm (mean centered) but may be increased to 15 cm if the frequency is rather low or decreased 10 cm if it is rather high. The elements are from an old broken fishing. 600MHz / Downlink 437. To attach the radials to the flange of the SO-239 I use small bolt/nut/lockwasher sets in 4-40 size about 1/2" long. I recently purchased a new 2. The original article was published in the Slovak HAM radio magazine Radiozurnal 1/1998. 5 cm which is about 1/16th lambda. 5″ Connector: SMA male Construction: Rubber sleeve over hard plastic core The MH-511 is designed not to dramatically improve performance but to be a convenient alternative to the stock triband antenna. Antenna gain. The advantage of using the latter is that broadband Quad driven elements for 23cm can be easily constructed with off the shelf Copper plumbing parts, like 90 degree. 2323 ft: Panel manufacturer-LG Display--Panel model. The FA-VA5 is a portable instrument, offering precise one port vector measurements up 600 MHz, with up to 40 hours battery life from 2 AA batteries at a very competitive price. The most popular wire-wound CB antenna in the world. Uplink 1267. For outdoors mounting it is made extra waterproof, this adds some additional design considerations. Perfect balance is achieved with balun 'inside' the folded dipole itself. (2) 100 kHz channelling, 1299. I have a small line of site path though some trees, to the area I want to broadcast to. I'm enjoying the challenge of 23cm 1296 MHz homebrew antenna construction for SOTA purposes. This should help with this weekend's ARRL 222 MHz and Up Contest. Uiteindelijk is het gelukt met de biquad op het dak de afstand van 4,7 km tussen mijn QTH en de repeater op " De Blankaard " te overbruggen. These two 300+ foot tall towers will support my new distributed feed curtain array for 80 and 40 meters. 875Ghz NM 50 CM RG402; UHP Antenna 29. Yagi antenna 35 el. The channel master 8 bay antenna is really 2 channel master 4 bay antennas ganged together to make one more stronger antenna increasing the gain making these antennas work as a team to bring you more signal. This should help with this weekend’s ARRL 222 MHz and Up Contest. (If you are a HAM): Design and Adjustement is easy, as with the Capacitor you can tune the Resonance by some MHz with no effort. Details on the Halo antenna can be found on my Tree Friendly 2 meter Halo Antenna page. The one pictured below is for receiving ADS-B aircraft signals on 1090MHz, again using scrap copper, but this time a purchased N-Type chassis socket. The measurements below are for building a simple Dipole Antenna. Providing coverage of the 160-10 meter bands plus the 6 m, 2 m, and 70 cm bands, the FT-897 includes operation on the SSB, CW, AM, FM, and Digital modes, and it's capable of 20-Watt portable operation using internal batteries, or up to 100 Watts when using an external 13. same ssb output as 8 x m57762 ! atv version: 8 watt in 140-150 watt amp out. At VK1AD Bi-Quad antenna construction I've had a hoot-of-a-time building 23cm antennas for SOTA and portable field ops. I like the 23 cm helix from WiMo and, of course, something like the dish shown at the top of this post. 23cm replacement antenna mast 70-601. With the view to establish a quick and easy multi-band antenna deployment for portable and camping operations a simple long wire antenna with an earth or earth plus counterpoise arrangement with a 9:1 voltage unun including a tuner or simply with a tuner is one possible solution. This biquad had approximately 2m of CNT-400 coax attached to it. Although you do need to be very accurate with your measuring and cutting. Space the turns 2. The picture to the left shows the antenna oriented for Here's how to make one:. Mobile Antennas Amateur Mobile Antennas : The Larsen company makes high quality NMO mount mobile amateur antennas. (SWR priblizno 1!!!). Realizzazione pubblicata su La Radio di Maggio 2016, rivista di A. Supermod - A 23. 7 GHz and 10 GHz. 00 - apply Price filter. The biquad antenna is center fed and symmetric about its origin. The main category is 2. Although this antenna works nicely, its gain just isn't enough when their 23cm preamp is broken (which, unfortunately, is the case most of the time). The terrestrial performance is comparable with vertical antennas of great prestige reaching great distances in direct as well to repeaters. YL2GD 23 cm EME antenna - lral. may be in the lower part of the 23cm band. Bandwidth is normally 10 MHz. com potekajo vzdrževalna dela, zato so možni izpadi storitev. With a boom length of only 5. Hubble Space Telescope front view. Complete text article will be published soon in the PDF format that will include background and a bit of theory how I came to idea to design this simple to build antenna. i soldered the tube on the BACK side of the sheet metal using a 180 watt soldering iron to avoid zinc poisoning i would get with a torch. 5dBi 100W Yagi Antenna 8 Element Beam 2 Meter/70 cm VHF/UHF Outdoor Yagi Antenna with U-Bolt for 144/430Mhz Ham Mobile Digital Radio/Repeater (TC-YG08UV). I needed 50 cm of pipe in this antenna (2 times 25 cm). DF9IC published some results with the 8 quad element version recalculated for 23cm. My set up recommendation is as follows. With each HD Stacker antenna properly aimed run a short coax cable > (4 feet is good) from each antenna to the antenna. OpenWire-Fed. Stacked 4 element permanent mount Yagis with mounting hardware. At VK1AD Bi-Quad antenna construction I have had a hoot-of-a-time building 23cm antennas for SOTA and portable field ops. I have had the same 2m, 70cm and a 23 cm (23 element) Tonna now for well over 40 years, as long as you look after them they last, maybe not as long as my 8 element J. Should have a balun, feed in centre of bi quad arrangement. 2323 ft: Panel manufacturer-LG Display--Panel model. 5 watt 23cm transverter and my choice of antennas. Antennas. Wideband Dipole Antenna 15 23. It can handle up to 50 watts of power. Doesn't anyone make 23cm radios these days?? I don't need other bands, so think I will probably be looking at getting a transverter to get on this band. Enter the required frequency in MHz, the velocity factor of the coax (if known) and antenna designer will calculate the dimensions of the elements as shown below. My plans have changed somewhat from my initial ideas, not only as equipment and funds have become available but also as my knowledge and understanding of the requirements of this particular band has grown. Details HAM Multiband. 5RA Boom consists of two parts. Collinear antenna building, by Karl Shoemaker, AK2O. Notes: • Spacing is the Distance from the Boom to the 'Gamma-Match'. 60w 23 cm Amplifier 23 CM Beacon 23cm Signal Generator 23cm Double Quad 23cm filters 13cm filter 13cm Signal Generator 13cm Transverter 120w 13 cm Amplifier 300w 33cm Amplifier This is probably the most simple and inexpensive antenna you could make for 23cm. com (Bidder Service) Thu, 23 Apr. Denne guiden er ikke tilgjengelig på Norsk for Tecno Camon CM - Android 7. At least 58 QSOs, 36 squares and 14 DXCCs on 23 cm and 32 QSOs, 25 squares and 10 DXCCs on 13 cm have been logged. Construction details for antennas. A wide variety of 23cm antenna options are available to you, such as ce. N or sma connector input and N connector output. THIS PAGE IS ABOUT HAM HOMEBREW ANTENNAS. GL Mike K9QHO AMSAT 33589 > > Spring is coming --- and I have gathered almost everything for an L Band > uplink. 95 Your Price: $51. I've seen the Wimos at Dayton and they look well built. (Most hams still believe exotic equipment, huge antennas, and very high power are needed to work EME. For outdoors mounting it is made extra waterproof, this adds some additional design considerations. The ability to rotate 90 degrees will allow you to match the polarization of the distant antenna you're connecting to. My 23cm yagi antenna, in fixed position to the local ATV repeater. the wb3ayw multielement collinear antenna This is an introduction to a high gain VHF/UHF vertical collinear antenna program and project that can be an asset to many of you that are looking for more gain in a vertical antenna for base or repeater use. Find many great new & used options and get the best deals for Diamond F1230A 23cm (1200-1300 MHz) Amateur Ham Radio Base Antenna at the best online prices at eBay! Free shipping for many products!. GB Combi 2m/6m/70/23cm Yagi. I used cpvc and black tape for portability. Buckmaster OCF Dipole Antennas Buckmaster's Best Coaxial Cables Antenna Support Rope Harken Stainless Steel Pulleys Stringliner Reel with 270 feet of Twisted Nylon Line Antenna Wire Screw-on Cable/Wire Clamps Line-Grips RF Chokes CQ Magazine Archives Great Circle (Azimuthal Equidistant) Maps World Prefix and Worked All States (WAS) Maps HamCall. 23CM Inspired by DL6WU, F9FT, DJ9YW. SPID XXL Heavy duty antenna mounting bracket, P/N: BR-03. Apart from offering our DishPointer service on this website and our award-winning apps for IOS / Apple devices and Android smartphones and tablets to align your satellite dish, we are providing business solutions to satellite professionals all around the world for over a decade now. 875Ghz NM 50 CM RG402; UHP Antenna 29. 23cm Antenna by OK1AYU I have built this "junkbox" antenna for my first tests on 23cm with the packet node OK0NJ. Supermod - A 23. It can produce similar results to a commercial version and be made from scraps of coax. Featuring a total length of 60cm (2'), the Shure Reverse SMA Cable can be used in conjunction with GLX-D receivers and the GLX-D Frequency Manager. Europe's leading Supplier and Distributor of Communications Equipment. With the 23cm transceiver still in development, I need a 23cm antenna. Short introduction of the Dual Quad Antenna for 70cm; 430 - 440 MHz. 78939 Hama replacement Rod for GTI Flex Antennas, M5/M6, 23 cm. M5 & M6 internal thread in antenna foot for VW, Ford, BMW, and more. Icom plans to release this high-performance SDR transceiver early next year and we expect to have it available for sale in the UK in February 2019 with a suggested retail price of £1795. It’s right hand circular polarization. Tuesday, April 23, 2019. 5 mm in diameter. made it last night using AWM 1354 (RG 8), 1/4 inch tubing with a 1. frequency range 1290mhz – 1310mhz. 600MHz / Downlink 437. Being a half-wave antenna, it provides a small gain over a. 05 if made. If you need vertical polarization, just turn it 90 degrees. Remove the 8 mm copper sheath entirely and flatten it. 5RA Boom consists of two parts. Dismiss Notice; 23cm biquad pic. PA3GUO 23CM Quad Antenna My first 23 cm Quad Antenna implementation: Original contruction idea by Geert Jan PE1HZG, suggested to me by Bertus, PE1KEH. VSWR les than 1. Loop feeds are very often used as primary feeds in electrically small parabolic dish antennas. A DIN A2 sized circuit board could carry 24 patches. Below is a quarter wave ground plane antenna I made for 23cm, 1296MHz which is made from off-cuts of household mains copper wire and a scrap BNC socket from the junk box. Perfect balance is achieved with balun 'inside' the folded dipole itself. The GP-3W ZX Antennas 3-band HF Vertical 12, 17, 30m, 3-band vertical covering 12m, 17m & 30m. 4 GHz / WiFi / WLAN Introduction This is basic instructions on building a handmade Double BiQuad antenna for WiFi/WLAN 2. Base station antennas and antenna line products We are Kathrein Mobile Communication Ericsson is a world leader in the rapidly changing environment of communications technology – by providing hardware, software, and services to enable the full value of connectivity. I have one made for each TV in my house, 5 total. 350 MHz and will be located in EM48ss next to the WB9PNU beacon for 3cm. Apart from offering our DishPointer service on this website and our award-winning apps for IOS / Apple devices and Android smartphones and tablets to align your satellite dish, we are providing business solutions to satellite professionals all around the world for over a decade now. 23 cm helix This antenna (Helix-23-2 from Wimo) has 20 turns. rod length 23 cm; braided rod to reduce wind noise; diameter of the internal thread in the body 6 mm; optional reduction of 5 or 6 mm (male) included; Suitable for cars: AUDI A1 [8x1 / 8XA] (9 / 2010->) CHRYSLER Crossfire [ZH] (7 / 2003-12 / 2007) CITROEN C2 [J] (10 / 2003-1 / 2010). 3 GHz +) 13cm (2300 – 2350 MHz) 12cm (2350 – 2480 MHz) 9cm (3400 – 3500 MHz) 6cm & 3cm (5. Antenna Measurements using Sun Noise - April 1998. Click to find the best Results for 23cm antenna Models for your 3D Printer. At VK1AD Bi-Quad antenna construction I have had a hoot-of-a-time building 23cm antennas for SOTA and portable field ops. Diamond F1230A 23cm/1200MHz (1200-1300 MHz) Vertical Base Antenna. The majority of television broadcast stations in the U. made it last night using AWM 1354 (RG 8), 1/4 inch tubing with a 1. This is basic instructions on building a double biquad antenna for 3. Bandwidth is normally 10 MHz. Note: See the Yagi WIKI for Biquad construction details and dimensions vs frequency. Gain of Circular X-Band Aperture G = d 20 Where: d = antenna diameter in cm 0 = aperture efficiency 4. 4 GHz with ~14 dBi Gain. Broad bandwith makes this antenna the optimal choice for ATV ( television ). 65 USD for 6. Aomway Biquad SMA 5. This won’t actually result in an antenna system that covers all of the ham bands, but it can be a good start. The antenna has 22 λ in length and almost 20 dBD in gain, it's a high tech/high performance product. Contact us at 0086-769-83328111 | [email protected] Having family and friends over to watch the game and need an HDTV antenna ASAP, or just don't want to wait for shipping? Our high-definition TV antennas can be found at local retailers across the United States. Over the last 6 months I have been building up my 1296MHz equipment. Due to the 8x-reflector the antenna shows a very high front to back ratio (f/b). 2 GHz 14 x 5/8 Wavelength 13. com carries the Wimo helix and yagi antennas. 19 Our Price: $5. The below image is the measurements of the antenna. ssb version: 8 watt in 150 watt p1db out. I have a small line of site path though some trees, to the area I want to broadcast to. The boom, plastic inserts are all from a broken TV antenna. I intended to buy hi frequency low loss 50 ohms coax like H100 or Aeroflex. has been designing and building cubical quad antennas for amateur radio operators around the world. 4 GHz Bi-Quad directional antenna. Length Foot Wind MPH; X30A: 2m / 70cm: 2m: 1 1/2l 70cm: 2 5/8l: 3. 630M 160M 80M (6) 60M 40M (21) 30M (7) 20M (38) 17M (5) 15M (4) 12M 10M (5) 6M (50) 4M 2M (7) 1. InfoSpace product offering combined results from Google, Yahoo!, Bing, and Ask. This calculator can be used to design a Slim Jim or a J Pole antenna. Slot Antenna Update 30 May 2002 **NEW** Historical Paper by Andrew Alford: Long Slot Antennas 8. Reckemeyer, DJ9YW - [email protected] DIY BiQuad 11dbi antenna tutorial! For those who are looking to transition into long rang flights, this just might be the antenna for you. It will compute the expected signal strength for every channel "in the air" at your location, including adjustments for transmitter power, terrain obstructions, curvature of the Earth, and other factors that affect signal availability. Biquad antenna is also known as Double Quad Beam or some call it Bowtie Beam antenna (Bowtie Beam is also the name for the subtype of the Biconical antenna). hi everyone, i'm just an average joe living here in Canada and to put my problem in a nutshell, i'm just a guy trying to get better WLAN reception. Dimensions as per Antenna Rothammel Book. Lalu buatlah holder antena dengan pipa berdiameter 1″ (masing2 panjangnya 2 cm) lalu dipotong secara vertikal membentuk penampang seperti huruf C. The GP-3W ZX Antennas 3-band HF Vertical 12, 17, 30m, 3-band vertical covering 12m, 17m & 30m. Dimensions as per Antenna Rothammel Book. dBi means relative to an isotropic omni-directional antenna. 23cm Band 35 Element Yagi The 23CM35EZ is the result of all the latest computer optimizing technology. So max length of any piece is less than 1m. Due to a large number of reflectors front to back ratio is excellent. 95 * Buy It *After Coupons & Promotions. 3 dBi Pyramidal horn antenna:. Make a provision to rotate the antenna 90 degrees [Fig 6]. I will use the 23cm transceiver mainly for chatting on a local repeater PI6NOS. 8v preamplifier supply on receive. 1260-1280MHz Yagi Antenna construction Double Quad antenna for the 23 cm band 1,2 GHz. 11b/g/n and 802. The gain of these antennas is between the ranges between 8dBi to 20dBi. Today as you can see, things got a bit different. Bow-Tie Dipole Antenna 13 19. I have built it many years ago for mobile operation to check out how good the signal of the ATV Relais DB0SCS is received in the villages around Schwabach (the QTH of the Relais). I recently purchased a new 2. Antenna Aperture ANTENNA INTRODUCTION / BASICS Rules of Thumb: 1. 3 meter long cable is allowing camera user move the antenna position also sideways and upwards. Sebelum menjelaskan cara pembuatan antena biquad sebagai penerima sinyal TV UHV, mari kita bahas terlebih dahulu tentang pengertian antena. com is an archive of Rod/AC6V's webpages, and is no longer being updated. I got interested in a double quad for 23cm. Dual Band Base Antennas. Remove the 8 mm copper sheath entirely and flatten it. 1002/mop MICROWAVE AND OPTICAL TECHNOLOGY LETTERS / Vol. This directional, circular polarised antenna extends our wide range of proven Counter-Drone products. It shows the size and position. I intended to buy hi frequency low loss 50 ohms coax like H100 or Aeroflex. Oct 19, 2013 #1 What's everyone using mobile on 1. THE DL6WU YAGI FOR 23CM BY M1EEV Introduction: For the home constructor, the design by DL6WU is a premium choice. For nearly 48 years Cubex Co. I have one made for each TV in my house, 5 total. The majority of television broadcast stations in the U. + 7 S 0 P O N S O A R P A 7 E E D-1-1 U J-1 0 F J-1-1. Done Tagging. It will be running 10W to 4x "wheel" antenna (by WA5VJB) on 1296. I believe a lot of microwave transverters probably use 23cm. MKU PA 341 A 4 W out. The Yagi-Uda antenna--often just called a "Yagi"--is a popular antenna due to its gain, directionality, and relatively lightweight design (see the figure to the right). Construction detail is published below to assist anyone wanting to make there own home base antenna. At this stage I suggest that you read my article on "A Satellite Tracking Antenna" to get an idea on…. A basic antenna setup for such a station is to use a dualband VHF/UHF antenna to cover 2m and 70cm, along with a multi-band HF antenna. Intel Core i5-7200U (3MB Cache, 2. Make Offer - WiFi Antenna 2. More than any other factor (including type of antenna, presence of amplifier, etc. I did not want the elements to cross or be in contact with the boom, I chose the isolated version. 00€ Add to Cart. 5H inches (41L x 31W x 8H cm) 8 pounds Waterproof ABS plastic cover Shielded 4 conductor RG-58 coax PL-259 connector 9 feet standard, custom to-order 24VDC Option, Shock Mount Option, Smartlock™ FOR MORE INFORMATION : Compare Smartuner. How difficult is the TV antenna installation? An indoor TV antenna is the easiest to install, typically you will attach the antenna high on a wall or in a location near a window then connect a coaxial cable from the antenna to the TV, DVR or Set-Top Box. Featuring a super wide voltage range, excellent torque and speed, it'll be a great choice for applications!Included Accessories: 1x Doub. 475MHz, 9600bps GMSK. The higher the gain of a directional antenna, the sharper the directivity pattern, the more precisely the antenna should be pointed. 97 Cambium PMP 450i 900MHz 12dBi Directional Yagi Antenna Dual-Slant 2 x RP-SMA M. Note The following antenna projects were gathered from the internet, therefore the author does not endorse any of the projects, you are on your own. DIAMOND F1230A-II 1. 24 - Tilted Folded Dipole Antenna. Scroll down for add to cart buttons to order on-line. The picture to the left shows the antenna oriented for Here's how to make one:. on the 70 cm (440 MHz) band and 25 MHz. Diamond X5000 @ 14 mtr (28mtr above sea level) Popovic antenna 2/70 vertical @ 7mtr 6mm² copper Bi-Quad 23cm towards PI6BOZ @ 7mtr (B5, 17km). This kit was presented at the VHF-day in Ringsted, Denmark in February 2011 and recommended by OZ2LD Christian, who said "This kit is the cheapest and easiest way to become QRV on 23 cm". The elements are from an old broken fishing. I was considering getting a Comet GP-95, since it is similar to the Diamond X-50 I have already, but tri-band, and not much longer than the X-50. G5RV Antenna 15 22. cfm?fa=Main. I've seen the Wimos at Dayton and they look well built. That means building an antenna. THE DL6WU YAGI FOR 23CM BY M1EEV Introduction: For the home constructor, the design by DL6WU is a premium choice. D-130J Vertical antenna 10m-23cm discone, UHF by Diamond. 5 dBi Base Station Vertical - 11. Sé el primero en valorar “Shielded Antenna 23. Antenna: Integrated omni-directional antennas (5. Finally can appreciate my efforts without having to fly out 40 miles (or not) to see if I got it right Curious how much increased DB if I were to put another double bow-tie 1/4 WL on top of it for a stacked double biquad?. I did something similar using a biquad and double biquad style, as stretching out number #6 copper wire with a vice at one end, and drill at the other makes a quick, and straight wire. 2 GHz) 23cm (1270 - 1300 MHz) 24cm (1240 - 1270 MHz) 13-3cm (2. WE ARE OPEN! FREE SHIPPING and 40% OFF. Other cookies, which increase the comfort when using this website, are used for direct advertising or to facilitate interaction with other websites and social networks, are only set with your consent. SPID XXL Heavy duty antenna mounting bracket, P/N: BR-03. 5 Feet Tall - Dark Red Color N Conn. 0 - $5 $5 - $10 $10 - $20 $20 - $50 $50 - $100 $100 - $150 $150 - $200 See more prices. The rest of this post is a tutorial on how to build the 23 cm sleeve dipole. PA-23R Flat panel antenna 23cm 9 dBD. Space the turns 2. The statement often made is a single quad element has 2 dB gain over a dipole, and that 2 dB gain difference carries over into arrays of quad elements. Feedpoint reportedly 60 Ohm. Bi-Quad WiFi Antenna: All WiFi users are constantly wanting more powerful signals. 3 dBi Pyramidal horn antenna:. Wideband Dipole Antenna 15 23. The antenna set includes the wall mount so you are easily able to tilt the antenna to desired direction if needed. both 250 euro. The BiQuad is a fairly simple to build 11dbi antenna that puts 99% of it's beam right where you need it - out front. New Spiderbeam 23cm Yagi Antenna Ultra-Lightweight antennas for expeditions and stealth applications. Its design makes it easy to mount in a variety of locations and many blend right in to your home's exterior. A corner-reflector antenna provides good performance radiation for directional UHF work since it has 8 to 10 dB gain, is fairly easy to build, and has reasonable bandwidth of 5% to 20%. minimal needed for CW EME on a regular base? I mean to work the average stations active on 23 cm. frequency range 1240mhz – 1280mhz. 25 1/8" long. uro, na spletnem mestu bolha. A Biquad Dish Design. This month I decided to build a 2 meter 5/4 wave antenna. Wideband dual-band. Amateur Mobile Antennas : The Diamond NR124NMO is a high gain 1. 4 dBd, Front to Back: 21. In this case the description and design info for a helix antenna. 14 dBi Gain. I used 3 LMR400 jumpers to a Comet CFX-4310 triplexer with 100 feet of more LMR400 to a mast on the roof of my house. This is a nice opportunity to use your 23cm radio and antenna setup. The Slim Jim, designed by the late Fred Judd, G2BCX, can be a great portable ‘roll up’ antenna, if made out of 300Ω or 450Ω ladder line / twin feeder. I needed 50 cm of pipe in this antenna (2 times 25 cm). The 23cm band is a lot wider than the 70cm band (1240-1300Mhz60Mhz wide!) and in order to maximise the bandwidth of 23cm antennas Copper tubing of around 15mm OD is often used. com carries the Wimo helix and yagi antennas. 23 Cm Slot Antenna, Victoria Casino Poker, Juegos Y Casino Quiniela De Mendoza, Daughtry - Wicked Game Live - Pechenga Casino. Uplink 1267. If more than 50 miles, the best option would be a directional antenna with the use of a remote- controlled antenna rotator. Unlike the compact internal antenna on a USB modem or cell phone, a Yagi's driven element is large enough to be fully sensitive to the frequencies of interest. dBi means relative to an isotropic omni-directional antenna. 296 GHz (23cm band) Septum Feed Antenna with the attached optional Flare Horn that was des - likes 23cm Amateur Band EME Septum Feed Antenna likes - 3D CAD Model Library | GrabCAD. 23cm Antenna by OK1AYU I have built this "junkbox" antenna for my first tests on 23cm with the packet node OK0NJ. 92cm This is the case in the standard BiQuad antenna. for a year or so for satellite work, mainly AO-13, AO-10, UO-22 and KO-25. All mounting parts and nuts are made of stainless steel. 70cm Projects - Directional Antennas "Homebrew" 435MHz 12-turn Helix Antenna by VE2ZAZ This 50-ohm impedance antenna, when fed with 25-100W of SSB RF at 435MHz, makes reaching Amateur satellites such as AO-40 and AO-10 a snap! The $4. Siripongdee, “Electronically tunable current-mode biquad filter employing CCCDTAs and grounded capacitors with low input and high output impedance,” AEU-International Journal of Electronics and Communications, Vol. 5 watt 23cm transverter and my choice of antennas. The 1296 MHz Gemini 23 incorporates a front panel switchable 13. made it last night using AWM 1354 (RG 8), 1/4 inch tubing with a 1. Uiteindelijk is het gelukt met de biquad op het dak de afstand van 4,7 km tussen mijn QTH en de repeater op " De Blankaard " te overbruggen. VHF and UHF Antenna Systems 18-21 Fig23—These drawings illustrate the dimensions for the 144-MHz ground-plane antenna. 4 I Shop 48. The following discussion about the minimum EME antenna gain requirements took place in the Moon-Net reflector. Waters and Stanton Call: 01702 204965 International calls: +44 1702 204965 Email: [email protected] Click on the photo to start tagging. I did something similar using a biquad and double biquad style, as stretching out number #6 copper wire with a vice at one end, and drill at the other makes a quick, and straight wire. NR124N Monoband Mobile Antenna • Fold-Over Specifications: Bands: 23cm (1200MHz) Gain dBi: 8. Can be mounted at ground level with earth stake. HF Antennas. 50 MHz 4 Yagi Antenna Stack; Magnetometer for Auroral Detection; Owner Bio; 6m (50 MHz) 2m (144 MHz) 1. Resources listed under Quad Antennas category belongs to Antennas main collection, and get reviewed and rated by amateur radio operators. Cheap and Easy Yagi Satellite Antennas This is a collection of three articles by Richard Crow N2SPI that originally ran in the AMSAT Journal during Summer and Autumn 2006. These Including the Tonna, sandpiper, J-beam and Severnside. The BiQuad is a fairly simple to build 11dbi antenna that puts 99% of it's beam right where you need it - out front. 35m (222 MHz) 70cm (432 MHz) 33cm (902 MHz) 24-23cm (1. Instead of: Article 2: (1) The entrance examination is open to Cameroonians of both sexes who are holders of the Baccalauréat (series C,D or Agriculture), or of the General Certificate of Education (GCE) Advanced Level in at least two science subjects, two of which were obtained at the GCE”Ordinary” Level, or any other equivalent certificate. Apr 2, 2011. I can send the antenna out for testing, but can't test it myself. I have a small line of site path though some trees, to the area I want to broadcast to. 3 Ion Life 48. Market Price: $10. 9cm outer diameter. Dismiss Notice; 23cm biquad pic. This is 1x1 lambda for 75 Ohm BiQuad (covers 4 UHF frequencies with SWR<2 and lowest SWR is at desired frequency where signal is a bit weaker than 3 others) Mesh is 2x2 cm Did the same for Walter Dnes 300 Ohm antenna + Lips. jp] ディズニーランド・パリでアナ雪2衣装が登場 2020年イベント予定と拡張新要素を発表 2019年9月11日 18:14 - [dpost. com Address: Unit 1 Fitzherbert Spur, Farlington, Portsmouth, Hampshire, PO6 1TT. This is a nice opportunity to use your 23cm radio and antenna setup. D-130J Vertical antenna 10m-23cm discone, UHF by Diamond. 8 dBi, Stacking - 14 x 5/8 λ, Connector - N, Max. THE DL6WU YAGI FOR 23CM BY M1EEV Introduction: For the home constructor, the design by DL6WU is a premium choice. Typical Dish gains and Beam Width - Here is simple table demonstrating typical dish gains and antenna beamwidth at 750, 850 and 2,000Mhz. Antenna design calculators category is a curation of 83 web resources on , Parallel Square Conductor Transmission Line Calculator, Analysis Of Antenna Mast Strength and Bending Stress, Full Wave Loop Antenna Calculator. Joined Jan 17, 2006 Messages 324 Location Mile High, or more. It can be constructed from any common household copper wire 2-2. 5 Feet Tall - Dark Red Color N Conn. The main category is 2. de Many 23cm yagis from well known manufacturers are on the market. Get free shipping on qualified Outdoor TV Antennas or Buy Online Pick Up in Store today in the Electrical department. 23 cm helix This antenna (Helix-23-2 from Wimo) has 20 turns. 23% broadcast over high-VHF (RF channels 7-13), while a very small number of stations, about 2%, broadcast. 00€ Add to Cart. The Making of a Beast: Part Two, the BiQuad Antenna: So now that basics are done on the WRT54G; now it is time to create the antenna I want to use. The antenna selection is memorized in each VFO and memory channel register, and the radio remembers which antenna you last used on that band or memory!. Our line of TV antennas are the world's most comprehensive and powerful antennas you can find. Free spins winnings are free from any wagering requirements. A car with a vertical radio antenna 85 cm long drives due east at 25 m/s. Radio Antennas See more product categories. brought to you by the CELIAS/MTOF Proton Monitor on the SOHO Spacecraft There is a problem with the motor controlling the High Gain Antenna on the SOHO spacecraft. The gain (RHCP) is 13 dB. This set me back about 50 euro cents per 2 meter (which means about 0. 5 GHz frequency. B efore assembling my 23 cm biquad antenna I wanted to know what happens when loop-to-reflector spacing is reduced. In times of crises during COVID-19 we all need to work together. Required materials: 10 cm or longer coaxial cable (we use RG-223 for this guide) 20 cm of 6 mm inner diameter 7 mm outer diameter copper tubing. With a boom length of only 5. Scroll down for add to cart buttons to order on-line. 4 I Shop 48. I intended to buy hi frequency low loss 50 ohms coax like H100 or Aeroflex. Wireless adapters support IEEE 802. Does anyone have any experience with the Wimo helix for 23 cm?. since I'm not willing to either open up and mod my router nor spending >$50 for a good external antenna for my desktop, i thought i'd construct my own WLAN antenna. Supermod - A 23. This post describes how I constructed a 2. Everywhere I go, the prices are the same : far too high for me. Hence here is the Double BiQuad Antenna and BiQuad Antenna calculators for handmade antenna based on average data. The statement often made is a single quad element has 2 dB gain over a dipole, and that 2 dB gain difference carries over into arrays of quad elements. As a high gain antenna, it is designed for use on receiver and effective angle is 40 degree; on the transmitter side, you need to use an omni antenna. VSWR les than 1. com is an archive of Rod/AC6V's webpages, and is no longer being updated. THIS PAGE IS ABOUT HAM HOMEBREW ANTENNAS. 23cm Band 35 Element Yagi The 23CM35EZ is the result of all the latest computer optimizing technology. Science data coverage may be less than complete for 1-2 weeks every 90 days (when the spacecraft gets 'flipped'). 23cm replacement antenna mast 70-601. 23cm antennas. The gain (RHCP) is 13 dB. But I wasn't thinking of a compact "mobile" version,. 95 as required. The package includes a 2el HB9VC PCB which has turned out to be a great addition for portable work, particularly from a hilltop with a good uninterrupted view of the horizon. It's the 23rd of the month so what better than to discuss practical antennas for the 23cm (or 1296 MHz) band? Even more so than 70cm, you can achieve very high gain with a small antenna. Wireless enthusiasts have been repurposing satellite dishes for a couple years now. Gain of Circular X-Band Aperture G = d 20 Where: d = antenna diameter in cm 0 = aperture efficiency 4. I'm enjoying the challenge of 23cm 1296 MHz homebrew antenna construction for SOTA purposes. Home of some of the most powerful long range AM/FM radios, WiFi antennas, and Internet repeater systems. Our radios are designed for improved reception and voice clarity. So max length of a. SPID XXL Heavy duty antenna mounting bracket, P/N: BR-03. 3 Grit Light Gray = Letter Box SD 23. Dimensions as per Antenna Rothammel Book. Calculate the required dimensions for a coaxial collinear antenna construction for any given frequency. DF9IC published some results with the 8 quad element version recalculated for 23cm. I can send the antenna out for testing, but can't test it myself. This is the original Firestik design, and a proven performer since 1975. 4GHz and 5GHz frequencies make it easier to achieve a stable connection, even in the presence of a possible source of interference. Antennas Direct DB8e Multidirectional Antenna - HDTV antenna - outdoor - UHF Antennas Direct CJMOUNT ClearStream J-Mount with Mounting Hardware Antennas Direct ClearStream 5 - TV antenna - outdoor - UHF, VHF Antennas Direct CDA8 Output TV/CATV Distribution Amplifier (8 Way) Antennas Direct 91XG Uni-Directional Extreme Range UHF DTV Antenna Antennas Direct Clearstream 4 Extreme Range Indoor. It is widely used because of its properties: Compact and thus can be portable, Easy to make, Cheap, Only one radiating element and reflector, 11dBi gain, SWR as low as 1. I used cpvc and black tape for portability. 2 GHz mobile antenna. Gain of rectangular X-Band Aperture G = 1. Other cookies, which increase the comfort when using this website, are used for direct advertising or to facilitate interaction with other websites and social networks, are only set with your consent. Instead of: Article 2: (1) The entrance examination is open to Cameroonians of both sexes who are holders of the Baccalauréat (series C,D or Agriculture), or of the General Certificate of Education (GCE) Advanced Level in at least two science subjects, two of which were obtained at the GCE”Ordinary” Level, or any other equivalent certificate. 5 Feet Tall - Dark Red Color N Conn. For AM/FM Reception Completed with Anti-Noise performance It is a replacement Aerial, not an ORIGINAL one. An antenna is a device for converting electromagnetic radiation in space into electrical currents in conductors or vice-versa, depending on whether it is being used for receiving or for transmitting, respectively. First EME antenna 4x38el. Diamond SRH999 6m/2m/70cm/23cm Antenna : Increase the performance on your handheld or wideband scanner with a Diamond® SRH Series antenna. Only the feed point needs a little adjustment. The SWR doesn’t quite c Read more. 1 cm length gives you works great. Come calcolare le antenne ad elica, esempi per i 70 e 23 cm. r/amateurradio: Welcome to Reddit's own amateur (ham) radio club. This should help with this weekend's ARRL 222 MHz and Up Contest. I have had the same 2m, 70cm and a 23 cm (23 element) Tonna now for well over 40 years, as long as you look after them they last, maybe not as long as my 8 element J-beam. If I didn't homebrew, I would purchase one. (CA, TX, FL, PA and NY seem to be the top 5 states for total repeaters across all bands). The default length is chosen for an operating frequency of 2. Gain of Circular X-Band Aperture G = d 20 Where: d = antenna diameter in cm 0 = aperture efficiency 4. My attempt at making a 23cm ALFORD SLOT Antenna-without a router! I have tried a different approach to the awkward part; cutting the 3mm slots in the coax cable. The quad element can be built with the threaded rod, tube 4 mm, and even the simple copper wire. (If you are a HAM): Design and Adjustement is easy, as with the Capacitor you can tune the Resonance by some MHz with no effort. Find a tube with a circumference equal to one wavelength, and wrap wire in a helix spaced a quarter wavelength. I have one made for each TV in my house, 5 total. com Address: Unit 1 Fitzherbert Spur, Farlington, Portsmouth, Hampshire, PO6 1TT. 5 watt 23cm transverter and my choice of antennas. Then trim it to a width of 20mm, and then cut in half for 2x 10 mm widths, then solder up any fractures before soldering it to the. hi everyone, i'm just an average joe living here in Canada and to put my problem in a nutshell, i'm just a guy trying to get better WLAN reception. 5|30 13| 商品参考サイズ/重さ 重さ:約0. Walters G3JVL. This interesting feature makes the ground plane losses very low and generally this antenna has little dimensions. This antenna, which is very forgiving in tolerances, is an ideal feed for offset fed parabolic reflector. The conductor width isn't of great importance in the design. Although you do need to be very accurate with your measuring and cutting. Footnotes: (1) 25 kHz channelling, 1294. 11 to model theoretically the perfect antenna. This technique can yield 3 dB gain over a single anten-na less only the loss of the phasing lines and the divider. (See also the discussion on lower limit for EME) On 27-Jan-1998 KO6RD wrote:. 40 m dish and 150 W enough to do the job or is that too marginal ? And what about qrm on 23 cm ? I can imagine that with a larger dish the band is much more cleaner as with a short yagi. The ability to rotate 90 degrees will allow you to match the polarization of the distant antenna you're connecting to. Stationary, directional antennas (Yagi, X-Quad) A directional antenna concentrates the field of radiation in one direction only, signals from other directions are picked up only weakly or not at all. 3 Biquad Antenna2. HF Antennas. The more elements you want, the higher the price of the antenna. These two versions also differ with respect to reflector size. The advantage of using the latter is that broadband Quad driven elements for 23cm can be easily constructed with off the shelf Copper plumbing parts, like 90 degree. Make Offer - WiFi Antenna 2. My set up recommendation is as follows. I like to use the basic DL6WU wideband Yagi designs whenever possible. Amateur Radio Society Le antenne ad elica sono impiegate a frequenze molto alte,sono a larga banda con un guadagno "G" elevato ma forse non godono di meritata diffusione nel mondo radioamatoriale visto che la loro. SPID XXL Heavy duty antenna mounting bracket, P/N: BR-03. Free delivery on eligible orders. Finally can appreciate my efforts without having to fly out 40 miles (or not) to see if I got it right Curious how much increased DB if I were to put another double bow-tie 1/4 WL on top of it for a stacked double biquad?. Diamond F1230A 23cm/1200MHz (1200-1300 MHz) Vertical Base Antenna. Length will finish out at 60 cm. Antenna Specialists was bought by Andrew Company in July 2003. Here is a table used for my prototype helical wifi antenna and its connector. Wireless enthusiasts have been repurposing satellite dishes for a couple years now. 2? The Diamond NR124N is the only mono band model I've found. The only drawback of getting QRV on 23cm is that only a few commercial transceivers are on the market. If we look at antenna books and articles about quad antennas, we will often find references to quad antennas having 2 dB gain over a comparable boom length yagi antenna. 5 Mounting biquad antenna on Dish 500. It is widely used because of its properties: Compact and thus can be portable, Easy to make, Cheap, Only one radiating element and reflector, 11dBi gain, SWR as low as 1. Antenna Fundamentals. The SWR doesn’t quite c Read more. Discover the BIG SIGNAL BiQuad-270 antenna a new and innovative concept of dual-band V-UHF antenna designed exclusively by BIG SIGNAL unique in the market. 1 result for 23cm amplifier Save 23cm amplifier to get e-mail alerts and updates on your eBay Feed. 5 - 6000 MHz Synthesizer with the. It's right hand circular polarization. You can find it in description of antenna (manual) or by looking at the diagram. THE DL6WU YAGI FOR 23CM BY M1EEV Introduction: For the home constructor, the design by DL6WU is a premium choice. I had been inspired to try ATV (amateur TV) on 23-cm and built this antenna to feed an old 10-foot C-band satellite dish I had. InfoSpace product offering combined results from Google, Yahoo!, Bing, and Ask. Oct 19, 2013 #1 What's everyone using mobile on 1. A Biquad is nothing but two single turn loop antennas forming an arraywhere each one is a driven component. Typical gains. 00 Ham Radio Satellite Antenna by KGØZZ It's a dual band 2m/70 cm yagi antenna made with common materials. Back to Antenna calculator overview. I hope to put the beam in the mast tomorrow and test it during the Nordic Activity. 5 with no velocity factor. ----- Original message from Colin Boys : ----- Joe: I've homebrewed six helix antennas but never one for 23 cm. G5RV Antenna 15 22. Make Offer - WiFi Antenna 2. Mobile antennas can only be made to resonate at one specific frequency (channel). We have a great online selection at the lowest prices with Fast & Free shipping on many items! Save 23cm antenna to get e-mail alerts and updates on your eBay Feed. 1 result for 23cm amplifier Save 23cm amplifier to get e-mail alerts and updates on your eBay Feed. Please ensure your existing base has this connection before buying. OK, built the thing now with smaller reflector wall and with a network analyser it shows that this is about correct. Done Tagging. The antenna selection is memorized in each VFO and memory channel register, and the radio remembers which antenna you last used on that band or memory!. I think I have also read that ATV is on 23cm. brought to you by the CELIAS/MTOF Proton Monitor on the SOHO Spacecraft There is a problem with the motor controlling the High Gain Antenna on the SOHO spacecraft. For the television bands UHF, TNT and analogy Secam and PAL, the biquad antenna (double or quad) and quadriquad is built on the basis of one side of 12 cm (mean centered) but may be increased to 15 cm if the frequency is rather low or decreased 10 cm if it is rather high. SPID XXL Heavy duty antenna mounting bracket, P/N: BR-03. Short introduction of the Dual Quad Antenna for 70cm; 430 - 440 MHz. Re: Vertical antenna for 23 cm Post by VK2ZRH » Sat Jan 26, 2013 2:35 am I have built a number of coaxial colinears for different frequency bands in years past, including an 8-element, centre-fed horizontal for 6m portable use (lashed to a length of hemp rope) - worked fine when I was working temporarily in Townsville and Cocos (Keeling) Islands. com, of which communication antenna accounts for 25%, eas system accounts for 5%, and car antenna accounts for 4%. Combined L-Band (23 cm) Helical Feed and Ku 0. Arrow II Portable Antennas: 146-4S: 6 Meter Yagi: Instruction Sheets: 440-5S: Contact Us: Order Form- for mail-in orders. The only responsibilty I can claim for the designs that follow is for finding them on the web! Many clever antenna designers have worked on designs for 1296MHz. I live in an HOA and the HOA approved the X-50 on my roof a while ago, so I was thinking of just quietly replacing the X-50 with the GP-95 and. The first biquad (referred to as biquad1) was constructed in a similar way to those made by Trevor Marshall, and has two "lips" on the sides of the reflector. Follow us on Facebook YAESU FT3DR System Fusion HT $378. Antenna Aperture ANTENNA INTRODUCTION / BASICS Rules of Thumb: 1. So I wanted to use a Bi-quad with a parabolic reflector. I have built it many years ago for mobile operation to check out how good the signal of the ATV Relais DB0SCS is received in the villages around Schwabach (the QTH of the Relais). PayPal Shopping Cart. It comes in an affordable yagi-style design that is common for many long-range antennas. For me, one of the interesting things about this band is the variety of weird and wonderful designs which. Comet CYA-1216E 23-Centimeter Beam Antennas offer over a 16 dBi gain in a quality pre-assembled Yagi. Power - 100 W, Length - 3,5 m, Max. Click on the photo to start tagging. This antenna is unique in that it is enclosed entirely in 3/4" PVC which makes the design a little more complicated. com Address: Unit 1 Fitzherbert Spur, Farlington, Portsmouth, Hampshire, PO6 1TT. 1 IntroductionA biquad antenna is a wide band antenna. 1 kW - 2 m 750 W - 70 cm Common Connector DualBand Yagi Antenna PA144-432-21-3BExcellent gain 21 element 2m 144-146 MHz and 430 - 440 MHz 70cm antenna. I will be attending Microwave Round table,at Martlesham this weekend. The following is a sequence of events leading to the construction of the repeater and its antenna. Home of some of the most powerful long range AM/FM radios, WiFi antennas, and Internet repeater systems. BIG SIGNAL ANTENNA BiQuad-270 VHF UHF. 4 LW Where: Length (L) and Width (W) are in cm 3. Sebelum menjelaskan cara pembuatan antena biquad sebagai penerima sinyal TV UHV, mari kita bahas terlebih dahulu tentang pengertian antena. Typical gains. Elektronika-ba web site was founded in year 2002. 70cm Projects - Directional Antennas "Homebrew" 435MHz 12-turn Helix Antenna by VE2ZAZ This 50-ohm impedance antenna, when fed with 25-100W of SSB RF at 435MHz, makes reaching Amateur satellites such as AO-40 and AO-10 a snap! The $4. 8GHz Dual Diamond Directional Antenna The 5. 34 & FREE Shipping: Usually ships within 6 to 10 days. The other biquad (referred to as biquad2), is the one featured on my Biquad Antenna Construction page. Only one thing that you have to know is the -3 dB beam width of antenna that you want to use in the stack. The dualband VHF/UHF antenna could be a Diamond X-50A, a Comet GP-3, or similar. Yagi Antenna. 2323 ft: Panel manufacturer-LG Display--Panel model. MKU PA 341 A 4 W out. PA1296-18-1. 5m and f/D became 0. Recently extended the dish to 2. Not only that, but in many areas you will also find networks like PBS, The CW, Comet, Buzzr, MeTV, and so many more. I decided to construct a helix to make some comparisons. The first coil from the antenna has a tap after 5 windings (for about 1 uH) for the 20m band. May 27, 2019. It can produce similar results to a commercial version and be made from scraps of coax. The GP-3W ZX Antennas 3-band HF Vertical 12, 17, 30m, 3-band vertical covering 12m, 17m & 30m. The NMO mount is a premium Motorola-style 3/4” hole mount. 1296 MHz 23 cm antenna 18 elements PA1296-18-1. Over the last 6 months I have been building up my 1296MHz equipment. Scopri l' antenna BIG SIGNAL BiQuad-270 un nuovo e innovativo concetto di antenna V-UHF a doppia banda progettata esclusivamente da BIG SIGNA L unica sul mercato. Amateur Mobile Antennas : The Diamond NR124NMO is a high gain 1. 296 GHz (23cm band) Septum Feed Antenna with the attached optional Flare Horn that was des - likes 23cm Amateur Band EME Septum Feed Antenna likes - 3D CAD Model Library | GrabCAD. (If you are a HAM): Design and Adjustement is easy, as with the Capacitor you can tune the Resonance by some MHz with no effort. It can be constructed from any common household copper wire 2-2. 34 & FREE Shipping: Usually ships within 6 to 10 days. Apr 2, 2011. 475MHz, 9600bps GMSK. Auteur: ON7NDR. The measurements below are for building a simple Dipole Antenna. 4GHz 25dBi Indoor Outdoor Wireless Yagi Antenna WiFi Router Signal 30W $13. Featuring a total length of 60cm (2'), the Shure Reverse SMA Cable can be used in conjunction with GLX-D receivers and the GLX-D Frequency Manager. Get free shipping on qualified Outdoor TV Antennas or Buy Online Pick Up in Store today in the Electrical department. The antenna is designed to be fed with 50 or 75 Ohm Coax Cable of most any length with a Balun. Science data coverage may be less than complete for 1-2 weeks every 90 days (when the spacecraft gets 'flipped'). 23 cm bi quad antenna On the website of DL5NEG I found an interesting 23 cm antenna; it is a bi quad antenna which can be homebrewed with the use of 1mm diameter cupperwire. 8 dBi, Stacking - 14 x 5/8 λ, Connector - N, Max. Bow-Tie Dipole Antenna 14 20. 23CM Inspired by DL6WU, F9FT, DJ9YW. 0 - Device Guides. B efore assembling my 23 cm biquad antenna I wanted to know what happens when loop-to-reflector spacing is reduced. CM Hi-VHF and UHF antenna made from 1/2" copper tubing and soldered joints. The only drawback of getting QRV on 23cm is that only a few commercial transceivers are on the market. Remove the 8 mm copper sheath entirely and flatten it. 19% VAT plus shipping. Other cookies, which increase the comfort when using this website, are used for direct advertising or to facilitate interaction with other websites and social networks, are only set with your consent. 5 cm which is about 1/16th lambda. 2104 "23cm antenna" 3D Models. The higher the gain of a directional antenna, the sharper the directivity pattern, the more precisely the antenna should be pointed. Author: Tom Sharp Created Date: 3/5/2004 9:47:34 AM. 8 cm (height above ground plane of feedpoint). 3 cm Band antenna ca. The Wire Size can range from 16 AWG to 12 AWG. SKU: 13-7014. 23 cm Beacon for St.