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Ranger RCI 2995 DX White Noise on SSB

HavaV10

HavaV10

Member
May 24, 2023
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Lake Havasu City, Arizona
Hello, Anyone here have a suggestion how to lower the white noise on ssb on a 2995 DX? I have a 2008 model, great radio and talks great to. But the white noise on SSB both upper and lower is terrible. Very hissy sounding and I'm looking for the hollow ssb sound like my Cobra 2000 has. Turning down the RF gain doesn't do anything to fix this issue. Is there just a simple trimmer adjustment or does the crystal filter need to be changed out to something different. Thanks in advance.

Mike
 
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AudioShockwav said:
Start here:

RCI 2970DX Receive Help Needed

All, I have recently aquired an RCI 2970DX in a trade for some work I did. It was "Truckerized" with the bias VR's max'd out, mod limiter cut and strangest of all-the wiring from the power plug (internal to the chassis) to the amplifier section pulled out of the Molex connector. As you can...
www.worldwidedx.com www.worldwidedx.com

@loosecannon

73
Jeff
Click to expand...
thanks Jeff any threads on how to fix this issue on the RCI 2995 DX
 
top right timmer pot looks to be topped out. Doesn't look right to me. But if I screw it down, I start to loose receive.
 

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HavaV10 said:
top right timmer pot looks to be topped out. Doesn't look right to me. But if I screw it down, I start to loose receive.
Click to expand...
Something's not right there. Those cans usually peak around 60 to 80% of the way up. If the slug comes flush with the top of the can it usually indicates one of the tiny caps inside the can has failed, or possibly a bad solder joint to the can or a related component has failed. The one in the pic the slug is actually higher than the can ! The can to the left looks like the slug has the opposite problem and it is much lower down than would be normal.
Is it a new radio or did you buy it used (and probably pre-screwdrivered)? Is there any indication of other components near those cans having been changed or removed ?
 
BC Coyote said:
Something's not right there. Those cans usually peak around 60 to 80% of the way up. If the slug comes flush with the top of the can it usually indicates one of the tiny caps inside the can has failed, or possibly a bad solder joint to the can or a related component has failed. The one in the pic the slug is actually higher than the can ! The can to the left looks like the slug has the opposite problem and it is much lower down than would be normal.
Is it a new radio or did you buy it used (and probably pre-screwdrivered)? Is there any indication of other components near those cans having been changed or removed ?
Click to expand...
BC I bought it used 2 weeks ago from Doc's CB shop in Florida. It's a 2008 model. It's in very clean condition. The receiver is super noisy on SSB with high pitch white noise. Switching from AM to SSB the sound doesn't change much. Doesn't look like any components have been changed out ever. But I could be wrong.
 

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BC Coyote said:
Something's not right there. Those cans usually peak around 60 to 80% of the way up. If the slug comes flush with the top of the can it usually indicates one of the tiny caps inside the can has failed, or possibly a bad solder joint to the can or a related component has failed. The one in the pic the slug is actually higher than the can ! The can to the left looks like the slug has the opposite problem and it is much lower down than would be normal.
Is it a new radio or did you buy it used (and probably pre-screwdrivered)? Is there any indication of other components near those cans having been changed or removed ?
Click to expand...
Maybe someone did their "super good" receive mod on it. AKA cranked shit up and now the white noise is even louder. The alignment procedures should be here in the service manual section. Tough to find someone that can do this these days.

 
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Ray Anderson was tech support at Galaxy years ago. His advice was to never set the antenna coil for max S-meter, but for max signal. Tuning it for max S-meter would maximize noise, not signal.

But he simplified this to first finding the S-meter peak and then turning the slug a turn and a half clockwise from there.

I prefer the "max signal" method, but that's what he was getting at with his advice.

73
 
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