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      • It has felt like Christmas this week! I ordered some new antennas and a rotator, at last I am going to have my antenna array back again after many years. My first array was put up on the 24th September 1973. I then had an 8 element yagi for 144Mhz and an 18 element parabeam for 432Mhz made by J-Beam.
      • 2 meter High Gain Low Noise Antennas for 144 MHz with Leading G/T for its length. Excellent suppression of all sidelobes. Low Noise design, Wideband operation, Equally good for EME, Terrestrial or FM Repeater work.
      • Apr 08, 2017 · Here is a video part 1 of my new Cushcraft 13B2 BOOMER yagi, 13 elements 144-148mhz wideband. In this video i do a complete build of the antenna, and test it with the analyzer. Great results on ...
    • The Telewave ANT150Y10H Yagi Antenna 144-174 MHz, is a very rugged, high performance directional antenna. Six elements provide a minimum of 10 dBd gain, high front-to-back ratio, and wide band capability. The elements are constructed from solid aluminum to prevent intermodulation and provide exceptional strength.
      • Excellent choice 144 MHz to 146 MHz Low Noise Wideband Yagi Antenna for 2 meter band. Perfect F/B. Best SWR on all frequencies. Good for Tropo or EME work. Best quality 2 meter stationary or portable Yagi antenna PA144-8-3B.
      • The Smith Chart shows a lot of information about the antenna. Marker 1 shows the point at which the antenna is used, and shows that the antenna is a resistive load (on the bisecting line through the chart). To add more info here. Co-axial Cable. I decided also to examine the loss of the cable I was using to link the antenna and VNA.
      • The Arrow II line of Antennas has been engineered to provide maximum gain and efficiency in the smallest practical size & weight. Only About 19 oz. (split boom add 1 oz.) Aluminum Arrow Shafts are used for elements. The 2 Gamma Matches (shown above) are pre-assembled & pre-tuned. One connector for VHF and one for UHF. Only female BNC is available.
      • Alibaba.com offers 1,245 144mhz antenna products. About 1% of these are tv antenna, 1% are navigation & gps. A wide variety of 144mhz antenna options are available to you, such as outdoor, indoor.
      • Controlled Impedance “Cheap” Antennas Kent WA5VJB’s computer optimized 144MHz to 1296MHz antennas with a clever asymmetrical feed.; The Quagi Antenna Turns 40 Wayne N6NB invented the Quagi, an easy to build cross between a Yagi and a Quad.
      • The Telewave ANT150F6 SERIES - Omnidirectional Collinear Antenna 138-175 MHz, is an extremely rugged, medium-gain, fiberglass collinear antenna, designed for operation in all environmental conditions. The antenna is constructed with brass and copper elements, connected at DC ground potential for lightning impulse protection. All junctions are fully soldered to prevent RF intermodulation, and ...
      • Dimensions 154x10x10cm, Weight 2.2kg EAxxZB EAntenna series are antennas designed by the super-known, Martin Steyer, DK7ZB. Amateur drove the new antenna design, using the new software today, which were based on characters like YU7EF, G0KSC, to have their current designs.
      • Jan 27, 2013 · 144 Mhz Magnetic Loop Antenna. ... Hello Simone, do you have technical specifications on your 144Mhz magnetic loop antenna? If you wouldn’t mind sharing, I would ...
      • Mar 14, 2013 · 14el 144MHz LN LFA This antenna has been built and tested with a version of this one being marketed by Vine Antennas. Again, like the other 2M LFAs before it, this antenna has better allround performance than any other antenna of the same boom length, included within the VE7BQH G/T table.
      • A Useful Horizontally Polarised Omni-directional Antenna with Gain Most terrestrial DX activity on 144MHz uses SSB, CW or digital modes such as FT8 and horizontal antennas. For someone like me who doesn't want to invest in a large Yagi array and a big rotator to turn it, thoughts turn to omnidirectional, horizontally polarised antennas.
    • For the HF bands, the frequency privileges depend greatly on the license class of the operator. Above 50 MHz, the frequency allocations are the same for Technician licenses and higher. In particular, the 2M band extends from 144 MHz to 148 MHz. The FCC Rules say that any mode (FM, AM, SSB, CW, etc.) can be used on the band from 144.100 to 148 ...
      • For the HF bands, the frequency privileges depend greatly on the license class of the operator. Above 50 MHz, the frequency allocations are the same for Technician licenses and higher. In particular, the 2M band extends from 144 MHz to 148 MHz. The FCC Rules say that any mode (FM, AM, SSB, CW, etc.) can be used on the band from 144.100 to 148 ...
      • Nov 22, 2010 · 2m - EME SEE MY 2M EME LOG (pdf) Here are pictures of my 144-MHz antenna array (click to see larger image): Moonrise Nov. 22, 2010 0200z, az=53, el=5 Looking up at the Tower during assembly - 2006 The 144-MHz Array - QRV! Close up of EME Array Waiting for antenna support masts and antenna - 2006
      • tenna to a mast. As with the 144-MHz version, the vertical portion of the antenna is soldered directly to the SO-239 connector. A very simple method of construction, shown in Figs 25 and 26, requires nothing more than an SO-239 connector and some #4-40 hardware . A small loop formed at the inside end of each radial is used to at-
      • antenna be tuned 200 to 300 KHz above the normal operating frequency. As an example, if operation at 144.200 MHz is the most used frequenc y , tune the antenna to 144.4 MHz. This will result in a match of perhaps 1.25:1 at 144.200 MHz.- this will not affect antenna performance and will allow wet weather use with a low V.S.W.R. 2.
      • Strengthen your signal with ease using this Tram 1481 Amateur Dual-Band Base Antenna. It features heavy-duty fiberglass construction to help it withstand the various elements. The Tram 1481 antenna with 17' base antenna has two frequencies: 8 dBd 144MHz/11 dBd 440 144MHz to 148MHz and 430MHz to 450MHz.
      • Welcome to the diamond radio and antenna products page. Here, you'll find links for diamond radio products for hf-vhf-uhf. In addition, specific models mentioned in the amateur radio forums like diamond antennas,power supplies , duplexers, coax switches vertical vhf-uhf antennas, hf base station antennas, and more are here for future reference.
    • This homepage is dedicated to the homebrewing of equipment, especially for building HF- and VHF-Yagi-antennas. Commercial use of these designs only with the permission of the author! If you find errors or you have additional details (Photos are very much appreciated!) pse send me an e-mail!
      • ..can also be used for local nets on your vertical, working well under weak signal conditions. When I first became a licensed radio amateur in the late 1980's, the vast majority of my operation on Amateur radio was using an old Belcom Liner 2 SSB transceiver on 144 MHz (all I could afford at the time.
      • Various antennas I have built. Antennas 70MHz Quarter Wave Ground Plane - Building a simple 1/4 wave ground plane antenna for the 4m band. 144MHz Portable Yagi Beam - A compact, portable 6 element 144MHz Yagi antenna. built for quick assembly in the field or up mountains.
      • Obviously the more power the better but what is the minimum required to obtain consistent results. From what I can gather so far a station running around 800 Watts into 4 Antennas should hear his own echoes some of the time, depending on conditions. Many designs exist for KW PAs at 144 Mhz.
      • 2 Yagi Antenna for 144MHz 2.1 Two antenna designs It is fortuitous that the Graves radar operating frequency is so close to the 2m amateur band at 144MHz. This means that there are a good number of suitable antenna designs available on the internet and in various books. Yagis are chosen at this frequency as they are cheap and easy to build, do
      • This calculator is designed to give the vertical length (height) of a particular whip type antenna, or the frequency of it. Enter one (only one) value, the desired frequency or the antenna length in any length field. Click on Calculate and the opposite value will be displayed in feet and inches or frequency in megahertz (Mhz).
      • antenna be tuned 200 to 300 KHz above the normal operating frequency. As an example, if operation at 144.200 MHz is the most used frequenc y , tune the antenna to 144.4 MHz. This will result in a match of perhaps 1.25:1 at 144.200 MHz.- this will not affect antenna performance and will allow wet weather use with a low V.S.W.R. 2.
    • GB 144MHz Yagi Antennas; HF Yagi Parts; GB 430MHz Yagi Antennas; GB 144-453MHz verticals; GB Broadcast Antennas; Wire Antennas; GB Special Antennas; GB Log-Per Antennas; HF Mini Beams MQ Yagi; GB Combi 4m/6m Yagi/Quad Antenna; GB 430MHz/144MHz Quad; HF Yagi Antennas; GB 144MHz Quad Antennas; HF Quads; GB 27MHz Yagi/Quad Parts; GB Combi 6m ...
      • THE (VHF) DIPOLE ANTENNA At VHF and UHF, most antenna systems are derived from the dipole or its complement, the slot antenna. Many antennas are based on half-wave dipoles fabricated from wire or tubing. The feed point is usually placed at the centre of the dipole, for although this is not absolutely necessary, it can help prevent
      • 1.3:1 @ 144Mhz 1.3:1 @ 145Mhz 2.0:1 @ 146Mhz 2.7:1 @ 147Mhz 2.5:1 @ 148Mhz I'm going to change this antenna to use a gamma match instead of directly feeding it with coax. When I re-scaled the antenna with EZNEC, the spacing and lengths were calculated out to about five digits. There is no way that I would be able to cut wires and drill holes to ...
      • Optimized 144MHz Moxon Antenna The OM-144 is a horizontally polarized, directional antenna designed for the CW/SSB portion of 2M. The Moxon design occupies approximately ½ the real estate of a classic 2M Yagi style antenna (29" X 13").
      • 1 dipole antenna, 1.5/2.0 dBd gain, low PIM, HD, 118-225 MHz 118 to 225 MHz 2 dBd
      • Search Results for 144 MHZ MOBILE. R&L Electronics ... MOBILE 144 MHZ MOBILE 50 MHZ MOBILE 28 MHZ MOBILE 24 ... 440 MHZ BASE 220 MHZ BASE 144 MHZ BASE 50 MHZ BASE 28 ...
      • It has felt like Christmas this week! I ordered some new antennas and a rotator, at last I am going to have my antenna array back again after many years. My first array was put up on the 24th September 1973. I then had an 8 element yagi for 144Mhz and an 18 element parabeam for 432Mhz made by J-Beam.
      • Ham Radio and Amateur Radio online equipment sales. HamCity has more than 30 years of experience in the amateur radio equipment business! Please visit us today for all your ham radio needs!
      • Mar 14, 2013 · 14el 144MHz LN LFA This antenna has been built and tested with a version of this one being marketed by Vine Antennas. Again, like the other 2M LFAs before it, this antenna has better allround performance than any other antenna of the same boom length, included within the VE7BQH G/T table.
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    • Ham Radio and Amateur Radio online equipment sales. HamCity has more than 30 years of experience in the amateur radio equipment business! Please visit us today for all your ham radio needs!
      • ARRL Product Review of the M2 6-Meter HO Loop Antennas. Reviewed by Bob Allison, WB1GCMAssistant Laboratory [email protected] The … K6MYC on Antenna Testing. Some TIPS on measuring VSWR and troubleshooting M2 … Antenna Gain: dBi vs. dBd. Antenna gain is measured in either dBi or dBd.It is important to note that …
      • This page contains construction details on a 2 metre 144MHz VHF Yagi beam antenna, designed for portable use. Since an old 5 element version (v1) of my antenna was shown in the July 2011 edition of RadCom, a few people have contacted me asking for some information on how it was constructed.
      • 1.3:1 @ 144Mhz 1.3:1 @ 145Mhz 2.0:1 @ 146Mhz 2.7:1 @ 147Mhz 2.5:1 @ 148Mhz I'm going to change this antenna to use a gamma match instead of directly feeding it with coax. When I re-scaled the antenna with EZNEC, the spacing and lengths were calculated out to about five digits. There is no way that I would be able to cut wires and drill holes to ...
      • The DX Shop - Antennas, Amplifiers and Accessories for the dedicated Radio Amateur. From HF, VHF, UHF, 50Mhz, 70Mhz and 144Mhz through to 432Mhz and 1296MHz the DX Shop supplies Linear Amplifiers, Antennas, Aerials, Masthead Preamplifiers, LNA, Coaxial cables and connectors, sequencers and amplifiers for your ham radio station.
    • GB 144MHz Yagi Antennas; HF Yagi Parts; GB 430MHz Yagi Antennas; GB 144-453MHz verticals; GB Broadcast Antennas; Wire Antennas; GB Special Antennas; GB Log-Per Antennas; HF Mini Beams MQ Yagi; GB Combi 4m/6m Yagi/Quad Antenna; GB 430MHz/144MHz Quad; HF Yagi Antennas; GB 144MHz Quad Antennas; HF Quads; GB 27MHz Yagi/Quad Parts; GB Combi 6m ...
      • About Portable Yagi for 144MHz The resource is currently listed in dxzone.com in 2 categories. The main category is Antennas for 2 meters band that is about Antenna projects for 144 MHz. This link is listed in our web site directory since Tuesday May 2 2006, and till today "Portable Yagi for 144MHz" has been followed for a total of 14242 times ...
      • 144 MHz Halo This halo antenna was built to have an omnidirectional coverage while working in VHF contests. The idea was to have a small but useful antenna for receiving, but it has demonstrated very capable on TX also.
      • Apr 08, 2017 · Here is a video part 1 of my new Cushcraft 13B2 BOOMER yagi, 13 elements 144-148mhz wideband. In this video i do a complete build of the antenna, and test it with the analyzer. Great results on ...
      • The 2-meter amateur radio band is a portion of the VHF radio spectrum, comprising frequencies stretching from 144 MHz to 148 MHz in International Telecommunication Union region (ITU) Regions 2 (North and South America plus Hawaii) and 3 (Asia and Oceania) and from 144 MHz to 146 MHz in ITU Region 1 (Europe, Africa, and Russia).
      • Free 2-day shipping. Buy UPBRIGHT Dual Band 144MHz/430MHz VHF UHF SMA-Female Antenna For Kenwood Handheld Radio TK240 TK-260 TK-270 TK-272 TK280 TK290 TK-340 TK-350 TK-370 TK-380 TK-430 TK-260G TK-270G TK-272G TK-2100 at Walmart.com

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Exclusive designs from some of the world's top antenna designers have been turned into professionally built, mechanically excellent antennas with a focus upon being manufactured the right way not the most cost effective way. A number of variants of each model can be produced in order to cater for the real-world requirements of both the ...

Exclusive designs from some of the world's top antenna designers have been turned into professionally built, mechanically excellent antennas with a focus upon being manufactured the right way not the most cost effective way. A number of variants of each model can be produced in order to cater for the real-world requirements of both the ... ve7bqh 144 mhz long yagi construction details The VE7BQH 43 ELEMENT LONG YAGI FOR THE LOW END OF THE 2M BAND This 98.5' (32.349 m) long portable antenna was designed by VE7BQH for W0PT. A homebrew 2m 144.2 MHz vertical 1/2 wave Coaxial Dipole antenna project for your home QTH, SOTA, portable field operations/WICEN exercises or the emergency 2m Go-box. Most terrestrial DX activity on 144MHz uses SSB, CW or digital modes and horizontal antennas. For someone like me who doesn't want to invest in a large Yagi array and a big rotator to turn it, thoughts turn to omnidirectional, horizontally polarised antennas. Jan 11, 2015 · G is the antenna gain in dB at the design frequency, and T is the equivalent noise temperature of the antenna in ºK. InnovAntennas founder Justin Johnson, G0KSC, designed the OWL G/T models for extreme gain, along with carefully-controlled side- and rear-lobe levels, to achieve results best suited for the demands of the mid-VHF frequencies, in ...

The A13B2 is easily mounted vertically or horizontally for maximum performance on your favorite mode. Its optimum boom length makes it a popular antenna that fits just about anywhere. The new UltraMatch balanced feed on the A13B2 provides a 50 Ohm match via a standard SO-239 UHF female connector. 144/28 MHZ TRANSVERTER BOARD *** TO BUY WITH CONFIDENCE, YOU ARE GETTING PAYPAL PROTECTION ! *** TO NOTE PLEASE: I also have the 148/28 MHz transverter with LO of 120.000 MHz and 146/28 with LO of 118.000 MHz available on a sale. We perform the design work using the latest full-3D electromagnetic modelling software.This enables us to accurately include the influence of the boom, insulators, baluns, feed point connections, etc, to the level which is impossible to do with legacy software from NEC and MiniNec families.

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2 Yagi Antenna for 144MHz 2.1 Two antenna designs It is fortuitous that the Graves radar operating frequency is so close to the 2m amateur band at 144MHz. This means that there are a good number of suitable antenna designs available on the internet and in various books. Yagis are chosen at this frequency as they are cheap and easy to build, do This homepage is dedicated to the homebrewing of equipment, especially for building HF- and VHF-Yagi-antennas. Commercial use of these designs only with the permission of the author! If you find errors or you have additional details (Photos are very much appreciated!) pse send me an e-mail!

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Welcome to the diamond radio and antenna products page. Here, you'll find links for diamond radio products for hf-vhf-uhf. In addition, specific models mentioned in the amateur radio forums like diamond antennas,power supplies , duplexers, coax switches vertical vhf-uhf antennas, hf base station antennas, and more are here for future reference. .

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The Scatter Forager is a low gain antenna. Even though it is low gain, I think I was right on the cusp of receiving it. Commercially there is an antenna made by the company Antenna Direct called the C5. It is a high gain VHF antenna, where the gain values are around 8dB or so for RF13. Patapsco building umd
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