[Hallicrafters] SR-2000 audio

[James Liles]

Hi Richy:
Are the absence of lows as transmitted or received or both?  The SR-2000 
audio is normally excellent, both transmit and receive with the carrier 
oscillator set to 1.651550 Mc and 1.648550 Mc USB/LSB respectively.  You can 
move them inward to enhance the lower response but remember, the opposite 
sideband will come with the move --- measure the rejection.  I've heard the 
old timers like myself say "I need to enhance the highs" --- the lows only 
occasionally.  If it's in receive mode, use an R48 speaker; the stock 
speaker in the P-2000 is deaf on the lows and the R-48 likes them.

NOTE:
If you try to enhance the high tones by moving the carrier oscillator out 
ward from center, bear in mind that the USB 1.651550 Mc carrier is forced 
through the filter 30 db to 40 db down the filter skirt in tune and CW mode 
causing transmit drive to wane.

Kindest regards Jim K9AXN


> Message: 1
> Date: Sun, 21 Nov 2010 11:14:08 -0500
> From: ss409ss at aol.com
> Subject: [Hallicrafters] SR-2000 and audio
> To: Hallicrafters at mailman.qth.net
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>   I spent some time on the air with the SR-2000 yesterday and moved over 
> to my digital audio setup since the mic I had on hand was way too tinny. 
> The SR-2000 worked well with my audio interface (Line 6 UX-1) and my 
> software and a condenser tube mic. The guys with the Flex radios said they 
> saw the bandwidth of the signal about 2.4 to 2.7k wide on ssb. Is there a 
> way to tweak the carrier point to bring up the lows? Thanks, Richy