What is the voltage inside the radio after the power connector? It may
be a volt or 2 lower if the connection is not a good one. And these
voltage need to be measure while transmitting full power.
Carl Moreschi N4PY
127 River Moss Way
Hertford, NC 27944
www.n4py.com
On 2/7/2021 12:12 PM, Scott Sheppard wrote:
Hello everyone
I have been going thru the omni c over the past several days getting it back in shape.
It’s running well and my last remaining challenge was the power output.
On most bands I was getting under 50w so figured I may have had a blown final.
Out came the mrf458’s (intact) and replaced with PT9784’s I had on hand...not a lot of
difference. I then swapped out the pt3647 devices also located in the final PA with a pair of
2sc2166’s.
I realize the power output specs vary to some degree and have a bit of range,
and normallly higher freq will be a bit less.... but I am curious why 40m is
now my lowest output...with 13.8 v measured at the radio this is the result:
160. 65
80. 85
40. 75
30. 80
20. 95
15. 80
28. 65
Any thoughts why 40 is the lowest band?
Greetings from Yukon Territory,
Scott. Vy1co
Sent from my iPad
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