Dave... thanks so much. The sensitivity returned when I did the J66
jumper test. So looks like PIN diode D5 needs to be replaced. Looks like
I can order from Mouser. Will do some digging and see if I can find the
"more robust version".
73, Connie / K5CM
On 7/19/2021 12:08 AM, David Hachadorian wrote:
Try this:
https://marc.info/?l=elecraft=145323127930319=2
Unfortunately, the link near the bottom for the more robust
replacement part doesn't work anymore, but maybe someone can come up
with the part number. I've got a bunch of them at home, but I'm on
vacation. The robust replacement is slightly larger in size, but it
will still fit on the solder pads if you are careful.
Dave Hachadorian, K6LL
Big Bear Lake, CA
On 7/18/2021 9:34 PM, Connie Marshall wrote:
While operating SO2R the 'HIGH RF" warning flashed on the K3 display.
Before I could react and stop the transmission on the other radio the
front end got zapped. The radio is down about 50 db on RX. I checked
Ant 2 and RX antenna and the same problem so probably not the surge
protectors on each of these inputs. Any ideas on what part goes out
when this happens. The TX radio was on 20 meters and the RX radio was
on 15 meters.
Connie / K5CM
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Dave Hachadorian, K6LL
Yuma, AZ
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