[Elecraft] First test of LP-Pan on K3 with emu0202

[Edward R. Cole]

I installed the emu-0202 USB soundcard today and interconnected one 
of the LP-Pan which was connected to the main-RX IF.  I used 
Spectravue as SDR sw since it was already installed for my SDR-IQ.  I 
didn't run into many hurdles and had 20m being displayed at 96-KHz 
bw.  It took a little getting accustomed to the display being 
relative freq. offset to the radio dial.
Bonus is I have audio playing from my computer speakers again (via 
the direct monitor).  I did discover that the SDR-IQ has the opposite 
convention for deciding I and Q input but was easily swapped in the 
sw (R=q, L=I on the LP=Pan while Spectravue wants them reversed).

It is also nice to have audio on my computer, again.  Both computer 
sourced audio and the LP-Pan are mixed in the emu, so one would want 
to mute the computer when running the K3+LP-Pan.

I noticed a pronounced bandpass curve in the noise leve which was 
pretty high (-62 dBm).  I had to run the emu input gain at 95% full 
setting so wonder if that is normal?  I haven't tried the other 
LP-Pan for comparison.  I wonder if the passband is an artifact of 
the LP-Pan or the front end of the K3?  I am kind of spoiled with the 
SDR-IQ which displays a flat spectrum.

I have not tried LInrad as the SDR sw, though it is installed on my 
computer.  I have the Delta-44 soundcard to install and second IF 
(sub-Rx) to make.

But a good first step!


73, Ed - KL7UW, WD2XSH/45
======================================
BP40IQ   500 KHz - 10-GHz   www.kl7uw.com
EME: 144-1.4kw*, 432-100w*, 1296-testing*, 3400-winter?
DUBUS Magazine USA Rep dubususa at hotmail.com
======================================
*temp not in service