Jan,
Before deciding it is a K3 problem, take a look at your antenna system
coax. If you bought cables from DX Engineering in the past year, be
aware that they had a crimping problem that could result in the bhavior
that you are experiencing. A transmit 'sets it straight', but the RX
diminishes after that.
Fortunately, DX Enginerring has corrected the problem and has
acknowledged it.
If you do not have the defective DXengineering cable problem, then you
should check your coax couplings for possible causes of problems. UHF
connectors should be more than finger tight. The shield connection
depends on a good tight connection, use pliers lightly and tape each
outdoor connection with electrical tape covered by CoaxSeal.
If you find no problems in you antenna system, contact
K3suppot@elecraft,com for further assistance.
73,
Don W3FPR
On 3/25/2014 9:40 PM, Jan wrote:
I am having a problem with T/R switching in my K3. The symptom is
that, after I transmit, the receive signals are sometimes very
attenuated. This problem has gotten worse. At first, simply a quick
tap on the PTT switch fixed everything, but now, at least on phone, I
must make a brief additional transmission to get the receive to
return. Today, the problem got worse, and sometimes I have to really
fuss with things to get receive back. Here are some questions:
1. Is there a T/R relay in the K3, and does this sound like it is
sticking, at least to the extent that it does not make good contact
on receive?
2. Has anyone had the similar problem, and what was the solution?
3. If it is a relay, can it be replaced easily, or is this a return to
Elecraft situation?
4. If it is simply a relay replacement, where is the relay located?
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