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HR-2510 bad ssb output audio

codecxbox

Active Member
Jul 28, 2021
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Hi! long time no see lol..
got a nice 2510 pretty cheap..monitoring on another radio,AM tx sounds perfect...but SSB is like clipping real bad and my dmm at current mode is showing crazy draws at SSB with a 1khz signal..
MRF 477 is going, right?
 

Probably not. Sounds more as if the SSB limiter, or ALC has been turned up too high.

A 1 kHz tone into a SSB transmitter produces a carrier coming out of the transmitter. And if this produces a 35 Watt carrier from the radio, the current drain will look crazy high.

Until something overheats and fails.

Might have another cause, but that's what this sounds like. The radio fell into the hands of a wattmeter-obsessed tweaknician. Most especially, one who didn't listen to the SSB transmit after tweaking it.

It will last longer and sound better turned down to about 25 Watts PEP on sideband.

73
 
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  • @ heartbreaker3473:
    Hello gentlemen and Ladies. I have the dreaded RCI-2990 receive issue where my radio gets distorted when people get close to my location. I found the C90 Capacitor, but I can not for the life of me find the C89 capacitor. Can or does anyone have a picture of the exact location of C89 ? Thank you in advance, Wes
  • @ AudioShockwav:
    Wes, it's better if you start a thread on the main forum, more people are going to see your question.
  • @ heartbreaker3473:
    Okay, sorry, will put in a forum
  • @ heartbreaker3473:
    I put it in the general disscution help area and started a new thread. Thank you for letting me know.