Similar issue here for a while.
When I first built the KX3 it calibrated out using the KX3 utility
fine. Several months later (Summer 2013) I was at the bench and re-ran
the calibrations using a power supply and dummy load. Cal failed on 10m
with High Current. I upgraded firmware and checked everything I could
think of including doing the calibrations manually. Called Elecraft
support to discuss and decided I should check all mechanical connections
inside the KX3. I disassembled and tightened everything. Still no luck
to date with the calibration above 10M. Luckily I don't operate the KX3
on 10/6m much, so living with a 5W limit is tolerable. Although a
solution would be nice.
Tighe
NK4I
On 12/13/13 11:25 AM, Don Wilhelm wrote:
The KX3 and all other Elecraft transceivers that use a similar power
control mechanism will attempt to maintain the requested power output.
If the power supply voltage drops, the current must increase to
maintain the requested power output.
That often means that the High Current threshold will be reached even
though everything is OK.
So check the supply voltage if you see High Current indicated -
especially if operating on an external battery.
73,
Don W3FPR
On 12/13/2013 10:59 AM, Gary Hawkins wrote:
Hi Gerry,
The unit does not appear to be hot.
Gary
On 12/13/2013 4:20 AM, Gerry leary wrote:
Is the radio getting too hot?
Sent from my iPhone this time
On Dec 12, 2013, at 9:11 PM, Gary Hawkins <[email protected]>
wrote:
Hi Ron,
Thanks for your response but could you clarify.
On the 12/10m bands I'm not sure of the VSWR of the antenna, but
the VSWR reported by the ATU was 1 to 1, so basically the amp was
perfectly matched and should have been OK. Now the fact that I had
the radio set for 10W rather than 8W on 12/10m might be an issue if
the KX3 was over driving. However, I'd made the assumption that the
KX3, knowing it's band, would just limit automatically - that might
not have been correct.
Gary KK6GXD
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