Posted by
w0mu on
Mar 16, 2009; 5:10am
URL: http://elecraft.85.s1.nabble.com/Hot-K3-tp2483931p2484176.html
Have you calibrated it with a known source? Elecraft makes a nice signal
generator kit that works great for this. You do need to enter the gain on
the 5 pole filters. They are negative numbers so that might change things.
Do you happen to have the pre amp on. It is generally not needed on 20-160.
CC Packet Cluster W0MU-1
W0MU.NET or 67.40.148.194
-----Original Message-----
From:
[hidden email]
[mailto:
[hidden email]] On Behalf Of Don Rasmussen
Sent: Sunday, March 15, 2009 9:05 PM
To:
[hidden email]
Subject: [Elecraft] "Hot" K3
Guys,
My new K3 #2308 shows two to three S-units high as compared to my other HF
radios, and lots of hiss in the speaker audio at low AF levels. It acts as
if I had maxed out the value for the crystal filter gain in the firmware, or
had the PreAmp on. I have made sure the gain is at zero and moved the
crystal filters (12.5 and 2.7) into different spots, but still too hot.
I can make it more normal with respect to AF gain and S-meter if I turn the
ATTenuator on. I have the 2.7 filter installed and have not added any gain
in the FL1 filter definition. I did a master reset and also loaded old
versions of the firmware but no improvement was noted.
I have emailed my request to
[hidden email], but want to post this
to the list - anyone seen their K3 with these symptoms?
Thanks,
Don Rasmussen
Carlsbad, Ca.
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