[VHFcontesting] transverter modification

[Tom Carney]

The May 2001 issue of QST contains an article on converting a 1210 to
222Mhz.

73  Tom  KE6FI aka KE6FI/R

----- Original Message -----
From: "Marten T Beels" <martentb at goshen.edu>
To: <vhfcontesting at contesting.com>
Sent: Thursday, January 15, 2004 12:47 PM
Subject: [VHFcontesting] transverter modification


> Hello all,
>
> I've done some googling and digging through the archives, and I've found
> apetizing mentions of modifiying transverters for different bands.  In
> particular, I'm considering modifying a Tentec 1209 to convert 144 MHz to
> 222MHz instead of 50 MHz.  This would entail changing the LO from 94 to 78
MHz,
> redesigning the filters to pass the sum and block the difference
frequencies,
> redesigning the final amplifier, and the rx amp.
>
> What else am I missing?
>
> Now I'm trying to decide just how practical such a conversion would be.
Am I
> better off building one from the ground up?
>
> I'm an electrical engineering student, so this could be an interesting
learning
> experience.  I'm not totally unfamiliar with filter and transformer
design.
> (But far from an expert!)
>
> Marten
> KC8HZM/R
> Uber Rover with KC8HZQ
>
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