Check for loose connections. Seems that there is a increase in resistance after
prolong use.
(((73))) Milverton / W9MMS.
On Thursday, January 25, 2018, 7:11:14 AM CST, [email protected]
<[email protected]> wrote:
John:
I checked it at the time. 13.3 Vdc reported by the K3 meters. It seems solid
(big Astron RS-50M) , and likely did not drop while operating.
73, Jeff PJ2ND / K8ND
******
This first thing I would do is check the voltage at the radio. There is a
voltmeter in my K3S so there probably is one in the K3. You could have a power
supply issue or just low voltage in Curacao. I try to maintain 13.5V on TX.
John KK9A
-------- Original Message --------
Subject: K3 Power Drop During Operation
Date: Thu, 25 Jan 2018 06:54:48 -0500
From: [email protected]
To: [email protected]
Cc: [email protected]
I was running some stations on 160-meters this morning, and noted that the
power output had dropped from the amp.
Further investigation found that the maximum power out from the K3/100 was
reduced from ~100W to about 54W, with no error messages displayed on the K3.
Advancing the 'PWR' control beyond 54 W made no difference. I stopped
operating, and found that the power slowly restored, first to a maximum of 84W,
and then back to the normal 100W maximum.
I assume that this is an issue with temperature? The ambient temperature was
cool (A/C running in shack). I have not noted this problem before.
The fan was set to 'Config > KPA3 > PA nor'. recommended setting for hard
contest use?
73, Jeff PJ2ND / K8ND
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