[hpsdr] Penelope output level?

David Woodhead dwoodhead at bms-inc.com
Tue Dec 30 15:50:20 PST 2008


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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