[hpsdr] IMD definition

Helmut, DC6NY dc6ny at gmx.de
Wed Jan 23 00:23:56 PST 2013

Hi Frank,


nothing to add. You are absolutely right.


73, Helmut


Von: hpsdr-bounces at lists.openhpsdr.org
[mailto:hpsdr-bounces at lists.openhpsdr.org] Im Auftrag von FRANCIS CARCIA
Gesendet: Mittwoch, 23. Januar 2013 00:51
An: hpsdr at lists.openhpsdr.org
Betreff: [hpsdr] IMD definition


Hi All,

ARRL method of measuring IMD covers up the poor quality of rice boxes on the

I'm here to get away from that over priced junk. The mil method accounts for
PEP by running at

a power level that puts the combined waveform peak at the amplifier power
rating. The spectrum analyzer 

displays the carriers and IMD with the same demodulation so how is it valid
to add 6 dB to the carriers and

not the distortion.  It is all about high performance as in HPSDR. Frank

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