| Author |
Message |
    
707
| | Posted on Thursday, August 01, 2002 - 2:40 pm: | 
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ARRL story
I wonder if this applies to interference with CB?
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bruce
| | Posted on Thursday, August 01, 2002 - 9:19 pm: |
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707 in 1973 i put up what for years was the WR4ANA repeater here in largo we were hammered by line noise and complaned to the power company who said SO WHAT. Well after a year of constant crackle we noted a change in how it sounded and suddly came back so strong it shut us down you could not get in the machine. This lasted about 2 hours when WAM! everything went dark well the noisy wire that they snubed us about had eaten through itsself and put 1000 homes in the dark.... GOLLY did they get here fast. |
Deadly Eyes
| | Posted on Friday, August 02, 2002 - 8:09 am: |
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Thanks bruce for bringing up FM or Frequency Modulation.
If you are having problems with power line noise and the noise seems to be everywhere, on every pole. Here is a way to narrow down the search.
Have you ever noticed that during a thunder storm you cannot listen to AM because of all the snap crackle and pop. BUT FM is still clear? Why not use that ability of the FM to filter out AM amplitude signals aka sparks aka power line noise.
If the noise seems to be comming from every telephone pole the THE OFFENDING pole will be heard on FM because it will overload the front end of the radio even in FM mode. If you hear the noise in FM stop and start looking in earnest.
DE |
BIG FOOT
| | Posted on Friday, August 02, 2002 - 8:26 am: |
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..so is the noise still there or did they FINALLY fix it...I am guessing it is gone...when you have 1000 griping customers, things tend to get repaired fairly fast...BIG FOOT |
DeadlyEyes
| | Posted on Sunday, August 04, 2002 - 8:18 am: |
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Re 707
As a neutral on the issue, sad to say probably not.
The reason I believe will be that Commercial/Licensed/public service people have to obtain a license which gives the the right to transmit at certain radio freqs free from deliberate interference/Malicious Interference.
CB to my knowledge at this time does not have a license requirement.
I predict that this will be the reason given.
Later
DE |
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