Photo of 2m / 70cm satellite antenna. While I've made a point elsewhere that .

This is an Excel spreadsheet template to design DL6WU Yagi antennas based . shows a screen shot of an example 70cm DL6WU Yagi design in inch dimensions. .

13 posts - 7 authors - Last post: 4 days agoArrow Antenna J Poles 2m 146 70cm 440 OSJ . too. they're OK, but the Comet line has an edge the way they design the section connectors. .

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The antenna is quite a bit smaller than the 2m antenna I built. The small size of the 70 cm antenna makes it much easier to carry around and wave .

By ON4CFC Via Antennex; Super J-Pole Antenna (Collinear Design) - By KB0YKI . A J-Pole for 2-meters and 70-cm. Feedback QST February 1995, p. 56. .

It was an interesting dual-band design, but directions were given for a . The picture above shows that the Townsman 70cm antenna can go to the top of the .

10 posts - 5 authors - Last post: Oct 31, 2008I built a couple of antennas designed for use on the 2m and 70cm . 300 ohm twin-lead (that old TV antenna stuff) in a j-pole design - and .

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Feb 21, 2011 – I was playing around with the MMANA Antenna analysis software and wanted to design a 2m/70cm vertical antenna. I tried different antenna .

Jun 15, 2011 – ATV Repeater Design Emergency Comm Legal Uses ATV Related Links . Connect your TV to an outside 70cm antenna with the same polarity as .

On 70cm, losses -- especially feed line losses -- accumulate quickly. . Basic Design. Details on the Halo antenna can be found on my Tree Friendly 2 meter .

Jan 2, 2011 – Dual-band 2M/70cm HT Antenna; Super flexible and lightweight- . . FWIW, you can attach the ground using the correct size of crimp lug, .

It is virtually impossible to design a single antenna that performs well in both bands. Hence, most of the dual band UHF/VHF antennas are in fact two .

Antenna for 70 cm 432 440 MHz. . The dimensions aren't typical however, this is what it took to get its SWR low. Bazooka dipole for 70 cm band - Here is a .

homebrew J-Pole 2mt 70 CM antenna Project. Make it cheap. . In my design I use 1/2" copper schedule M tubing and 1/4" soft copper tubing. .

Jump to Dimensions‎: Dimensions are for 6 gauge wire or 1/2" copper pipe. Note that when measuring the 70cm elements, include the wire diameter(! .

A J-Pole for 2-meters and 70-cm pop - An Easy Dual-Band VHF/UHF Antenna from QST . J-Pole antenna design pop - Complete guide to build Jpole antennas with .

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70 cm 6/8 Element Beam. Based on a design from Clear Lake Amateur Radio Club. . My real concern is the bandwidth of the longer antenna might be too narrow .

Here are the plans to build a 70 CM J-pole antenna: 70 CM J-Pole Construction Plans. The above dimensions for the J-pole are in inches, and aren't typical .

Sep 18, 2008 – As an dhuafa station, I don't have 70cm antenna. So I decide to build my own 70cm . J-pole dimension I got from hamuniversity web site. .

2 posts - 2 authors - Last post: Sep 22, 2008Hi, does anyone have the spec length of the ground plain elements of a Watson W50 antenna? I have just bought one minus the elements and .

Diamond CR627B mobile antenna 6m/2m/70cm product reviews by real people like .

A Portable 8-Element Wideband Yagi for 70-cm ATV . The antenna design was optimized for broadband performance using YAGIMAX software. .

70 cm Quagi Antenna. This was my first AO-10 antenna. As goofy as it looked, I managed a few . This design is optimized for 436.8 mHz with a 50 Ohm feed. .

Mar 11, 2008 – Doyt R. Hoverman's original design for a television antenna was . The original Hoverman antenna design did not have a reflector and used a .

Design or build your antenna here! Antenna project contributions from all .

A wavelength of 70 cm makes a nice modelling size compared to 15 metres! The basic outline and dimensions were found on W4RN's excellent antenna site. .

Build A 9 dB, 70cm, Collinear Antenna From Coax. By N1HFX . wavelength in free space we need to adjust its size by multiplying it by the velocity factory. .

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In the design of dual-band 2m/70cm vertical antennas generally, the harmonic relationship makes it relatively easy to obtain acceptable impedance matching .

N50 yagi beam antennas are aimed at achieving maximum gain and best G/T . David GI4SNA is using the G4CQM 6M7N50 design. see his contest result here! .

Aug 23, 2010 – Antenna Dimensions Calculator-- Dipoles From AMANDX . . Duplexer (Diplexer) 2m / 70cm AND Duplexer (Diplexer) HF + 6m / 2m + 70 cm HB9ABX .

This is the lower 70cm UHF antenna. This is our transmit antenna for UHF. . Date: 12/08/2009. Size: 640x430, 1024x688. Full size: 1024x688 .

Surprisingly, the only critical dimension seems to be the overall length (see below). . dimensions given in the antenna design details as closely as possible. Typical tubing diameters for the 2m and 70cm bands are from 0.25in or 6mm, .

an almost identical design. His predates mine and was published . The 70 cm antenna is actually two of these stacked, making it a quad turnstile not to be .

30 posts - 15 authors - Last post: Mar 6, 2008Check it out if you need a cheap UHF antenna. . . He had some thoughts on possibly improving this DIY design for fringe areas: .

J-pole and discone antenna users I spoke to were similarly disappointed. . See Tables 1 and 2 for dimensions. Not to scale. My 70cm Lindenblads delivered .

A J-Pole for 2-meters and 70-cm - An Easy Dual-Band VHF/UHF Antenna from . The figures give the details of the dimensions, components and construction. .

Mar 21, 2009 – Diamond SG-M911 6m/2m/70cm mobile antenna product reviews by real . Very nice size for a garage!!! I don't have to fold it over to go into .

VHF/UHF Yagi Antenna Design - Design your vhf yagi antenna online, .

5 posts - 4 authors - Last post: Mar 7, 2010This antenna works great on both 2M & 70 CM. Attached Thumbnails. Click image for larger version Name: Antenna.JPG Views: 801 Size: 12.3 .

VHF/UHF Yagi Antenna Design - Design your vhf yagi antenna online, . for 6m, 4m, 2m, 70cm and Shortwave; 3 Element Yagis Antennas for HF - All these plans .

ph7at antenna experiments portable 70cm yagi. . Antenna experiments. A portable 70cm yagi . Here are the dimensions of this little antenna: .

Especially in thus case with a limited boom length the antenna elements must . The 70cm yagi. The actual design was choosen mainly because of its broad 50 .

2 meter Quagi 97 - Dimensions and plan to build a W5UN EME quagi antenna . K5OE, 70 cm Quagi Antenna - An AO-10 antenna by K5OE, this design is optimized .

A calculator for constructing a J-pole or Slim Jim antenna. . A slim jim for 2m (145MHz) will be 1.5 metres long, and 70cm (433MHz) will be 0.5 metres. .

World's smallest 2M/70cm dualband antenna! Convenient size and designed for close-range communications, attenuates all but the strongest signals .

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