It is standard procedure with a SDR-1000 to create a brand new database and 
not an import or a copy of an older one( 
http://kc.flex-radio.com/KnowledgebaseArticle50089.aspx ) after installing a 
new version of PowerSDR 
(http://kc.flex-radio.com/KnowledgebaseArticle50088.aspx).

After a new database is created, you must re-calibrate the SDR-1000 because 
calibration data is not stored in the radio like it is with the FLEX-x000 
series of SDRs (http://kc.flex-radio.com/KnowledgebaseArticle50324.aspx).  This 
is easily done with a dummy load and a signal source of known frequency and 
strength, like the XG-1 
(http://kc.flex-radio.com/KnowledgebaseArticle50271.aspx).

After doing the calibration procedures, if you are still having problems with 
the power output, then you should test the output voltage from the sound card 
and calibrate that appropriately.  The procedure is located in the SDR-1000 
Operating Manual (http://support.flex-radio.com/Downloads.aspx?id=112).  If you 
do change the sound card output voltage settings, then you MUST re-run all of 
the calibration procedures again.  Especially the PA calibration tests.

(sorry for the double post to you, Don)

-Tim

-----Original Message-----
From: [email protected] 
[mailto:[email protected]] On Behalf Of KU4WE
Sent: Tuesday, February 10, 2009 4:59 PM
To: [email protected]
Subject: [Flexradio] Problem with TUN on SDR1000

I have a SDR1000  (late production version) with PwrSDR v 1.16.1. Lately when 
using the TUN function, the actual output power is approximately 30W, as 
measured with an external calibrated power meter (the PwrSDR screen indicates 
23W Fwd Pwr). The Tune Power input box is set 10W. I deleted the database and 
replaced it with a past known good database generated with this version. Same 
results. I then ran PwrSDR v1.14.0 with the last known good database for this 
version. Same 30W. Any idea what's causing this? The TUN function is one of my 
favorites for quickly tuning my ATU and amplifier.

Thanks, Don KU4WE


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