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Magnum s45HP SSB

Just to hi jack this a bit. My s45HP has been operating very well but of late people are reporting that my signal is fluctuating in strength. I notice that when I turn the radio on the receive will increase in strength if I key the microphone.

I did read somewhere that the RFX75 that power these can suffer from a poor connection . ?????

Anyone suffered the same symptoms and what would be the culprit. Microphone problem or other?

cheers

Bruce

OZ

RFX75 when hot can see decrese in watts as much as 15 w diff
 
Yes sir 15-30 watts and also drifting. And it can also take out other components. Been there and done that. Put a fan on the rfx 75 and run it all the time. And also make sure your swr is below 1.3, anything near or above that and they act strange!
 
RFX75 when hot can see decrese in watts as much as 15 w diff

Mine will act strange when you first turn the radio on so heat isn't a factor. Sometimes when turning on the radio and the audio is at a certain level. I key the mike and the audio level increases. Keying the mike again may decrease it again.

Strange.
 
Mine will act strange when you first turn the radio on so heat isn't a factor. Sometimes when turning on the radio and the audio is at a certain level. I key the mike and the audio level increases. Keying the mike again may decrease it again.

Strange.
Mine is a pos, have I mentioned that already? Lol.
 

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