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#1
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Hello:
new at his. Found the following freq's that apparently my town utilizes. Are the modes fm for Both, or... ? 39.560 MHz 123.000 The 123.0 one is particularly perplexing for me, as I thought that puts it in the middle of the AM band, which I always thought would be just for aero. Would a Town service use AM rather than fm ? Why, if so ? Thanks, B. |
#2
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Normally 39.560MHz would be FM mode, and 123.000MHz would be AM mode. What
are you hearing on 123.000MHz? Bill Crocker "Robert11" wrote in message . .. Hello: new at his. Found the following freq's that apparently my town utilizes. Are the modes fm for Both, or... ? 39.560 MHz 123.000 The 123.0 one is particularly perplexing for me, as I thought that puts it in the middle of the AM band, which I always thought would be just for aero. Would a Town service use AM rather than fm ? Why, if so ? Thanks, B. |
#3
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On Mon, 13 Feb 2006 08:19:24 -0500, "Robert11"
wrote: Are the modes fm for Both, or... ? 39.560 MHz FM 123.000 AM The 123.0 one is particularly perplexing for me, as I thought that puts it in the middle of the AM band, which I always thought would be just for aero. Would a Town service use AM rather than fm ? Why, if so ? If they're using it for anything but aeronautical use (or aeronautical-related - airport maintenance, fire, etc.), they're doing so illegally. |
#4
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Hi Bill:
Frankly mainly noise, but occasionally some garbled conv. irrespective of whether I have fm or AM set. Guess I'll just forget about it. Was only curious. Thanks for help, and all the past help. Bob ----------------- "Bill Crocker" wrote in message ... Normally 39.560MHz would be FM mode, and 123.000MHz would be AM mode. What are you hearing on 123.000MHz? Bill Crocker "Robert11" wrote in message . .. Hello: new at his. Found the following freq's that apparently my town utilizes. Are the modes fm for Both, or... ? 39.560 MHz 123.000 The 123.0 one is particularly perplexing for me, as I thought that puts it in the middle of the AM band, which I always thought would be just for aero. Would a Town service use AM rather than fm ? Why, if so ? Thanks, B. |
#5
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Montag, 13. Februar 2006 09:45 (US Central Time)
Robert11 wrote in rec.radio.scanner: Hi Robert, Frankly mainly noise, but occasionally some garbled conv. irrespective of whether I have fm or AM set. 123.0 suggests that it is somewhat airport/aviation related and should be AM. If You can`t get a clear signal, it also could be something else, like a tv or radio station ... over here at EDS I sometimes hear a radio transmission that gets over the tower freq (depending on the weather and where I am located). Talk to You later ... Hans from Germany -- 2006/02/13 16:50 EDDS 131650Z 14003KT 9999 FEW022 SCT250 M00/M05 Q1021 NOSIG |
#7
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![]() Found the following freq's that apparently my town utilizes. Are the modes fm for Both, or... ? 39.560 MHz FM probably your local police mobiles so they can talk to your local Sheriff. 123.000 AM Does your local town own the airport? This sounds like service vehicles or fire trucks that have to go onto the active runway and taxiway areas of the airport. If you have to go out onto an active runway YOU MUST GET CLEARANCE FROM THE CONTROL TOWER BEFORE YOU ENTER OR CROSS AN ACTIVE RUNWAY particularly per The 123.0 one isp erplexing for me, as I thought that puts it in the middle of the AM band, which I always thought would be just for aero. Would a Town service use AM rather than fm ? Why, if so ? All 118- 136 MHz AERO frequencies are AM. Dan Yemiola AI8O |
#8
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In article ,
"Robert11" wrote: Hello: new at his. Found the following freq's that apparently my town utilizes. Are the modes fm for Both, or... ? 39.560 MHz 123.000 The 123.0 one is particularly perplexing for me, as I thought that puts it in the middle of the AM band, which I always thought would be just for aero. Would a Town service use AM rather than fm ? Why, if so ? Thanks, B. Are you sure the 123.0 is a frequency? If it is then it is probably related to an airport in the area. There is another possibility however" 123.0 is a valid PL tone, if the listing you found the 39.56 freq from relates the two that might be the case. Often freqs with PL tones are listed as "39.560 (123.0)" or some similar format. PL is a form of sub-audible signaling used to reduce interference and control access to radio systems. Several models of scanners utilize PL features for the same purposes. It may also be referred to by other trade names as well as CTCSS. |
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