[TenTec] Preselector/Jupiter

Bill Miner wg6h at postoffice.pacbell.net
Mon Dec 15 18:14:27 EST 2003


Bob,

The MFJ passive preselector is a low Q device with only a single series
tuned LC circuit.  I have tried one on my T-T 1254 SWL receiver with
some improvement but the 1254 has only a broad bandpass filter for the
entire HF band.  I believe the Jupiter has bandpass filters for each
amateur band and probably would not really benefit much from the MFJ
unit. 

A multi element high Q preselector might be of benefit but I am not
aware of any off the shelf units so it would have to be homebrewed.  Not
sure it would be worth the effort however.

73,
Bill - K6WLM

Bob Stephens wrote:
> 
> I'm wondering if anyone has tried using the MFJ passive transceiver
> preselector with a Jup/Peg or Argo V during a contest ? It is supposed to
> increase dynamic range. Is it effective ?
> 
> tnx & 73
> Bob KB1CIW
> 
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