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Very noisey LSB all through

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SnowWalker

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Jul 12, 2016
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136
Location
Rossland, BC
What would be the reason for so much static on my radio's SSB - LSB & USB? Could it be the radio or an antenna malfunction?

I have a Galaxy DX959 CB. When using it as a base radio and hooked to a 22', ringo style antenna it's not bad on some days but most of the time it's really noisy. The same when I have in my Ford Ranger truck. My SWR sits around 1.6.

Les
 

TheSpaceMann

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Apr 3, 2014
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Many different things can create noise, from power lines to loose wires! Check your connections first.
 

kc4jgc

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Mar 7, 2004
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1,424
Location
Virginia Beach, VA
Second what Spacemann says

Power line noise would be the first thing I look.
So many home electronics create rf noise as well. You'd be surprised.
 

AC9BX

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Jun 11, 2011
Messages
305
Location
Lockport, IL
First, is this only with sideband or also with AM? Typically noise is worse for AM. I don't know how noise blanking works on that radio but it could be it doesn't work well or at all on SSB.
Now then, assuming the noise is being received and it's not a radio problem, the sources of noise are many. You'll find dozens of threads on this subject in the Amateur Radio section. Here's some examples, Ethernet router, Internet gateway, washing machine (seriously, the new electronic controls can do this), furnace (same deal), computer monitors, TV sets (plasma sets generate monstrous noise), thermostats, switch mode power supplies (which is just about everything that plugs in these days, phone chargers, game consoles, stereos, power tools) ... you have to turn everything off, switch off circuit breakers. Then listen, if the noise is gone you know it's in your place, which is almost always the case. Then turn stuff back on until you find what it causing it. Power line noise is an issue but the most likely culprit is a piece of equipment you have. If it is indeed power line noise then next thing to do is carry a portable AM radio around the neighborhood listening for this noise. If you can find the source you can contact the power company. They're glad to hear about it. But, just because you hear it the worst in a spot doesn't mean that's the source.
 

SnowWalker

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Jul 12, 2016
Messages
136
Location
Rossland, BC
Yes, the NB/ANL is turned on.

Part of the static problem we is our grandson's wireless headphones. We also did a test with every electrical and wireless gizmo we had in the house. The wireless headphones and the microwave oven were the first noise makers. My computer is sitting beside my radio and created a very small amount of noise, but nothing significant.

We did find that the ring on my roof antenna was covered with snow, especially where the two ends were close together. The gap is 7/8" (-+0) but snow had bridged across the gap. Upon clearing away the snow and readjusting the gap, we got the static down to about 50% of what it was to begin with. We live in the mountains, at a substantial altitude, so the snow maintenance is going to be an ongoing chore.

The SWR sits around 1.7 – 1.9 now so that is acceptable. The Mod. is a bit weak, around 78%. I don’t want to open the radio and start tinkering with things I know nothing about.

Thanks guys. Every little suggestion is looked at and tried so no one's post is ignored.

A very Merry Christmas to all you Radio Gurus out there.

Les
 
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