[hpsdr] More Strange Behavior PowerSDR 1.19.3.2 , K7SR

[Phil Harman]

Hi Mike,

Welcome to the openHPSDR group.

Regarding the frequency error, did you have the 10MHz source selected 
correctly?  This is done in PowerSDR under Setup > HPSDR. If you had this 
set to Atlas,  and did not have a 10MHz reference connected to the Atlas 
bus,  then the clocks on Mercury and Penelope would not be phase-locked 
together. This could cause the frequency error your found.

73 Phil... VK6APH

----- Original Message ----- 
From: "Mike F" <mikecf100 at gmail.com>
To: <hpsdr at lists.openhpsdr.org>
Sent: Saturday, January 22, 2011 11:39 PM
Subject: [hpsdr] More Strange Behavior PowerSDR 1.19.3.2 , K7SR


> ***** High Performance Software Defined Radio Discussion List *****
>
> Being new to HPSDR I am experimenting with the various features.  I have 
> installed two versions of Powersdr on my computer, both from the HPSDR 
> svn.  These are: "PowerSDR (KD5TED 5jan2011 derived from 1.10.4+BaseSVN 
> 2025)" and "PowerSDR 1.19.3.2".
>
> The following problems were observed with 1.19.3.2, and ARE NOT present in 
> the KD5TED version.
>
> I was checking the rig while talking to a fellow local ham.  He noted that 
> when we both were on 14.18000 he had to tune about 100hz high for me to 
> not sound donald duck.  When he changed frequency he was too low pitched 
> on my end.  We played for a while and I found that if I set XIT to -100 we 
> could operate and both sound good.  I then loaded the KD5TED version and 
> found that it worked correctly without the offset.
>
> This morning, while conducting further testing, I turned on another 
> receiver, tuned to the same frequency as HPSDR.  Using 1.19.3.2 when I 
> activated tune I heard a low level hum, although my power meter showed 
> output.  The panadapter display showed a tone about 600hz above the set 
> frequency.  When I did the same for KD5TED version, the display was the 
> same but I heard a clear tone at about the right frequency.  I switched 
> back to 1.19.3.2 and decided to tune the second receiver off the test 
> frequency.  Surprise!  The tone was exactly at the set frequency, not the 
> 600hz offset shown on the display.
>
> Am I missing something.  Not being that familiar with the software, I am 
> not sure?
>
> Mike, K7SR
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