Jurgen ON5MF wrote:
Mmm, not really sure about that any more... as stated a few days ago I
have seen the signals transmitted by my K2 (SN 5549) and I'm not
really happy with them (especially on 10-12 and 30m).
Anyhow, in a few days a friend of mine with (semi-) professional will
try to tweak the filters to see if we can improve on that.
Am I one of the only ones who is also interested in the purity of the
transmitted signal and not only in the quality of the receiver?
Jurgen:
I've made some simple receiver sensitivity measurements and posted my
results, along with those made by W5EWA, at
http://www.cliftonlaboratories.com/k2_rx_sensitivity.htm. I also plan to
make some spurious output measurements today and will post those as
well. I've done earlier measurements on my K2 with an HP8558B spectrum
analyzer, but now have a much better Advantek R3463 spectrum analyzer
with an easier way of getting data into the PC.
Do you have specific test frequencies that are of concern to you?
Jack K8ZOA
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