[hpsdr] Penelope output level?

[David Woodhead]

Sorry, my mistake!!!

I had it set to AM. I am able to get 0.5W output in  LSB (tune). Above this level, the output appears unstable (level oscillates). Also, I am only able to achieve 0.5W with the PA gain set to min (38dB) and the drive level set to 81 (800mW displayed on the output level meter.

Does this sound normal?

David
KM5TZ


-----Original Message-----
From: hpsdr-bounces at lists.hpsdr.org on behalf of David Woodhead
Sent: Tue 12/30/2008 3:50 PM
To: hpsdr at lists.hpsdr.org
Subject: [hpsdr] Penelope output level?
 
***** High Performance Software Defined Radio Discussion List *****


I am unable to get 0.5W out of Penelope.

With the PA gain set to min (38dB) in PowerSDR and the drive level set to 50 (500mW displayed on output meter), I am only getting 21dBm output (120mW). At this power level I am seeing 4v p-p on each opamp output. I have the output transformer oriented with the dot closest to R4.

Can someone confirm 0.5W is achievable and settings to do so?

Thanks

David
KM5TZ
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