[TMC] GPR-90 RXD Tuning

[Richard Knoppow]

----- Original Message ----- 
From: "Richard Knoppow" <1oldlens1 at ix.netcom.com>
To: <jvendely at cfl.rr.com>; "tmc" <tmc at mailman.qth.net>
Sent: Tuesday, March 11, 2014 8:39 AM
Subject: Re: [TMC] GPR-90 RXD Tuning

     Another question:  I am not sure I understand the RF 
input circuit for the GPR-90.  I have not yet drawn it out 
but it appears to use sections of LC high-pass filters.  How 
is this supposed to work?
     Also, I have never seen a price for the RXD but the 
GPR-90 was a bit more than half the price of the SP-600 for 
similar functions so I suspect the RXD was considerably 
cheaper than the equivalent SP-600-JX-17 or the Northern 
Radio modified receivers, which were very similar. Can 
anyone confirm this?  The answer may be on the TMC price 
lists which have been posted. I am off to work and can't do 
that until this evening.


--
Richard Knoppow
Los Angeles
WB6KBL
dickburk at ix.netcom.com