[hpsdr] Pure Signal

[Richard Grubb]

I use a Hermes / ANAN 10 PA combination to drive a JUMA PA 1000 linear. 
Just as an interesting data point, Pure Signal reduced the lowest third 
order sideband of the two tone test signal from -36 dB to -63 dB. The 
test was carried out on 14 MHz with about 7W drive from the ANAN 10 and 
900 W output from the PA 1000 running into a dummy load. I was 
monitoring using the Hermes and  PowerSDR mRX PS in Duplex mode. The 
signal pick-off is based on the published design by DC6NY.

The pick-off level does not seem to be at all critical. I get virtually 
the same improvement on the ANAN 10 PA alone without changing the pick 
up loss of -53 dB.

Thanks for the great software folks !

Dick, W0QM, G3FNL
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