[Elecraft] What's best Soundcard Interface for KX3

[Edward R Cole]

I assume you are talking about JT-65HF on HF bands.

I decode JT-65 signals down to -28.  -26 is 100% copy level and get 
more marginal at weaker signals.  I have decoded as low as -31 but 
that is rare.  Of course I am talking about JT-65b on 2m-eme where 
sky noise is much lower.

For WSJT10 (which is a suite of sw that includes JT-65) I run 
monaural audio from line-out from my K3.  I run JT65c on 1296 with 
this sw which only requires simple audio input thru a 
soundcard.  Bandwidth on the sw is limited to 2.5 KHz display.

I run MAP-65 on 2m-eme which requires IQ input which comes from a 
LP-Pan connected to the K3 1st IF.  I get up to 90-KHz panadaptor 
display.  The LP-Pan provides IQ into a M-Audio Delta44 soundcard 
which can provide 90-KHz bandwidth.

SDR sw require stereo soundcards with IQ baseband input.

73, Ed - KL7UW

Date: Sun, 10 Apr 2016 16:51:39 -0700
From: Robert Nobis <n7rjn at nobis.net>
To: George_yv5wz <yv5wz at hotmail.com>
Cc: elecraft at mailman.qth.net
Subject: Re: [Elecraft] What's best Soundcard Interface for KX3
Message-ID: <1BBDC298-1100-4051-B11F-474F4CEEB0EA at nobis.net>
Content-Type: text/plain; charset=us-ascii

George,

That is great. -24 dB is good for a built in sound card. By the way 
what version of JT65 are you using?

Note that your transmit signal level is usually critical for JT65 and 
JT9. Also, I always use VOX to key the transmitter.

73,


Bob Nobis - N7RJN
n7rjn at nobis.net



73, Ed - KL7UW
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