GE Tony.
1. The K3's sensitivity in manufacturer's specifications for BW=500Hz is
equal to -136dBm.
If we will recalculate sensitivity for SSB BW=2800Hz we will see only
-128dbm.
2. If we will see measurements from ARRL Lab for K3 and ProIII (for
example), we will see that ProIII has better noise floor (MDS):
for 14MHz -141dBm for ProIII (PreAmp2=On) and -138 for K3 (PreAmp=On)
for 50MHz -142dBm for ProII (PreAmp2=On) and -136 for K3 (PreAmp=On)
For 28MHz we don't have the results from ARRL. :(
73!
Alex UR5LAM
Tony - KM0O пишет:
Yesterday, in the 10-meter contest, I noticed that some other stations (using
comparable antennas) within a very few miles of me were working stations
that I could barely detect, or not even hear, on my K3. In itself that is
not too unusual, but I had another radio in the shack, a Yaesu FT-900, so I
connected it to the K3 for some comparative receiver testing.
What I discovered was rather disappointing. About half the time, there
seemed to be no difference in the ability of the two receivers to pick out
very weak signals at or near noise level. The other half of the time, the
old FT-900 seemed just a bit better. NEVER was the K3 better at digging out
the weak ones.
What are other people's impressions of the K3's sensitivity on 10 meters?
This is a K3 that was in Aptos a few months ago and came back "within spec".
Does the K3's 6-meter sensitivity problem extend down to 10 meters?
Comments, anyone?
73,
Tony
KM0O
_______________________________________________
Elecraft mailing list
Post to: [email protected]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com
