David,
I would be suspicious of the output voltage from the line-out from your sound card. I would recommend that you use the calibration routine for determining the line-out voltage, thus with the M-Audio Delta 44 sound card and utilizing the recommended settings for the card you should observe a line-out voltage of.98 volts. The PowerSDR console when picking the Delta 44 sound card will default to expect .98 volts.

Wally - M0ZAZ.


At 09:59 PM 12/3/2005 +0100, you wrote:
Hi
I have the sdr1k with the 100W pa. I use the Delta SC and sw-version
1.4.5p7. There is the following problem: when I go to tune (should be
10W) I have only 1W. PA-calibration doesen't work all the time (50%
abort).  If calibration works I'll get the required output-power. But
the power is not constant - it goes form 5W to15W. Restart the computer
or the sdr1k doesn't solve the problem. After successfull calibration
and restart the system it could there is low power. With 1.4.4 there ist
the same behavior.  What's the Problem?

David, HB9RVS


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