The FT-102 was reviewed in QST - October of 1983. John has a pretty good
memory. 3rd and 5th order imd was down 40 db.
A real sleeper with regard to distortion in rigs with 12 volt finals is the
Heath SB-104. Almost all rigs with 12 volt finals have to stretch to get
-30 db for 3rd order distortion. The SB-104 (and A model) used a combiner
and combine two push-pull amplifiers using 60 watt transistors to get 100
watts total output. I recall the 3rd order distortion was -38 db.
Colin K7FM
> [Original Message]
> From: John <hydro@fx2.com>
> To: AMPS <amps@contesting.com>
To: <amps@contesting.com>
> Date: 4/1/02 9:46:11 PM
> Subject: Re: [Amps] rotten splatter/ IMD vs. Vcc
>
> Not sure what qst .. I think 1983 they tested the FT-102. I will have to
> dig out all my old issues. Their are other rigs that have low IMD ...the
> Kenwood TS-930 , 940, 950SDX... FT-1000D , FT-767 , 1000MPmk5 they all
had
> high voltage finals (28v) or higher...Just about any solid state radio
with
> high voltage finals had no problems getting down to the -35 mark or
> better......
>
> 73's John
>
>
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--- COLIN LAMB
--- k7fm@teleport.com
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