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Re: [VHFcontesting] 222MHZ Transverters

To: VHF Contesting Reflector <vhfcontesting@contesting.com>
Subject: Re: [VHFcontesting] 222MHZ Transverters
From: Zack Widup <w9sz.zack@gmail.com>
Date: Mon, 28 Sep 2009 12:02:31 -0500
List-post: <vhfcontesting@contesting.com">mailto:vhfcontesting@contesting.com>
Although  W1GHZ Paul Wade's 222 transverter was originally designed for the
FT-817, there is no reason why it can't be made to work with any IF rig:

http://www.w1ghz.org/222xvtr/222.htm

I etched the circuit boards for the W1VT "no-tune" 222 MHz transverter and
built it myself, but some people might not want to go through all that
trouble.

73, Zack W9SZ

On Sun, Sep 27, 2009 at 5:00 PM, James Duffey <jamesduffey@comcast.net>wrote:

> I use an Elecraft XV-222 transverter for 222 MHz. It has a very good
> receiver as it is sensitive and very immune to overload and strong
> signal intermod.
>
> Having said that, it has a couple of faults.
>
> The first is that it runs hot and although 20 Watts out can be run on
> SSB, it will still run hot, and the power should be probably be held
> to 10 Watts or so on high duty cycle modes like FM and WSJT. This is
> not a problem if you have a linear that takes the lower power input.
>
> The second is that my unit drifts noticeably from a cold start. While
> probably not a problem for fixed station use, where the power can be
> left on, in the rover I turn it on only when I go to 222 MHz to
> conserve power and then it drifts as it never gets warmed up as I am
> turning it on and off.
>
> With the K2 it has a nice interface and is if you are using a VHF
> transceiver. - Duffey
>
>
> --
> KK6MC
> James Duffey
> Cedar Crest NM
>
>
>
>
>
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