skatertj
Member
If turning the Attenuator ON makes the signal sound clearer, you are most likely experiencing front end overload or desense.
This is a vey common problem with scanners. Some are better at rejecting out of band signals and some suck. I'm not familiar with the 2055 so I can't say how well it rejects out of band signals.
Going from your comment of turning the attenuator on though does indicate an overload or desense problem.
The most common causes are FM radio stations and paging transmitters.
Paging transmitters do turn on and off so you should hear the signal clear up on its own if the paging carrier happens to drop while you are also hearing the distant VHF signal that is weak.
RadioShack sells a cheap FM Trap or FM Filter. It will help a bunch if your problem is from FM radio stations.
You will not hear the radio station but the scanner does. Its front end cannot handle the strong signal from the radio stations so it ends up worsening your VHF reception.
The radio shack FM trap only comes with F connectors so you will need adapters and a short length of coax.
I'd try that as it may very well fix your problems.
I don't know any specific threads here at RR but this has been discussed many times. Try searching for FM Trap or FM Filter and you should find a bunch of info here. Most likely the threads will be in the RadiShack or GRE forums as the GRE made radios are the most prone to this problem.
RadioShack FM Trap : Adapters, splitters and amplifiers | RadioShack.com is the link to the trap at radioshack. If that link does not work, it is stock number 15-024.
If you try this and it works, you may want a much higher quality trap. Par Electronics makes one that has the proper BNC connectors and is much higher quality over the radioshack trap. Par also sells traps for the common paging bands also but you would need to determine if paging is the cause and then what band is the culprit. Around here I must filter both the 152 and 158 paging bands but I do not need an FM trap.
If you are in a fairly large city, it could be fm radio or paging or both. More rural areas I'd think would be from fm radio stations.
162 MHz NOAA WX broadcasts are also a common cause of problems with scanners but the tower would need to be located near you usually for it to be a problem.
Here is the link to PAR, they also have a page there somewhere that explains overload or desense that may help ypou determine if this is your problem. PAR Electronics | Filters for the commercial 2 way market, MATV, FM broadcast, laboratory, marine industry, amateur radio, scanner and short wave listening enthusiasts
A strong FM radio station signal or paging transmitter can completely wipe out the signals you are trying to hear. Sometimes the intended signals sound muddy (same sound as your "fuzzy" term) but still come through and other times you may not hear them at all. Even strong local VHF signals can be totally lost if you are experiencing bad desense.
I guess "desense" would also be a good search word here at RR.
Good Luck!
Well, to maybe help you help me, I can tell you this. I am tryin to get clearer signal on frequencies between 154.0 up 156.0. These channels im trying to listen to are about 20-25 miles from me. When my scanner is in my home, stationary with the telescopic antenna, all these frequencies i want to hear, come in mostly clear. Once it is in my car, these channels need to have the attenuation button pressed to have them come in clear. Even then, when they start to come in fuzzy with ATT on, i can turn it off and itll be abit clearer then go back to being fuzzy so ATT will need to be hit, once again.
My weather nearest NOAA antenna is roughly 25 miles away. It does come in fuzzy in some places also and i know on one road, it cuts out completely til i git ATT...
Maybe this can help? i also could be wrong on this part "i can turn it off and itll be abit clearer then go back to being fuzzy so ATT will need to be hit, once again." I would need to drive around again, which i will be doing tomorrow, then i can remember if this is true or not.