WA5ZNU
Monday, October 18, 2004 Zulu
 

I was too sick to go to the Sunday of Pacificon, so I stayed home and built my XG-1 1uV/50uV 7.040MHz signal reference. The first thing to do with is is receiver sensitivity testing using the 1uV signal. Elecraft gives clear instructions, but they do get a bit ahead of themselves in rounding off numbers before they say they're going to...

My KX1 had the following measurements with me BK2704B meter on the 200mV scale and some rather long probes, at full AF again:

No signal1.6mV
1uV signal33.6mV
20 log S/N26.4
MDS=-107-that-133.4 dBm

My FT-817 had the following measurements with me BK2704B meter on the 200mV scale and some rather long probes, IPO not selected, out the DIN connector and through the attenuator in a SignalLink SL-1+ isolator:

No signal1.6mV
1uV signal49.1mV
20 log S/N29.6
MDS=-107-that-136.7 dBm

My FT-817 had the following measurements with me BK2704B meter on the 200mV scale and some rather long probes, IPO, out the DIN connector and through the attenuator in a SignalLink SL-1+ isolator:

No signal1.2mV
1uV signal14.3mV
20 log S/N21.5
MDS=-107-that-128.5 dBm

- posted by Leigh @ 17:07 z
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