Military use of 50-88mhz Fm

[carbineone]

Does anyone have active military frequencies used in the U.S. in the 50-88mhz Fm range? I know this is supposed to be for overseas use but it is used here. I have heard aircraft on the following frequencies-
76.775, 80.425, 50.500 these are helos most of the time.

[prcguy]

In So Cal 65.05MHz is a common helicopter freq and I've heard convoys on 55.00MHz.
prcguy

[Intellifax]

At Hunter AAF GA, the 1-3 Aviation uses 67.975 and the 4-3 uses 76.775. There's another user there on 77.725.

[rankin39]

News items during the aftermath of hurricane Katrina described National Guard using frequencies in the 80 MHz. band. Now that most of the TV broadcasters have been moved to UHF these mid-band frequencies should probably be checked a lot more frequently.

Bob, WoNXN

[KC2zZe]

Are these VHF-low band frequencies, being used for avaition traffic, mentioned above in AM mode or FM mode?

[mancow]

FM. They could be ground or air or both.

[mancow]

That's interesting. How did they present the info? You don't often hear the finer details like that in the news.

Originally Posted by rankin39

News items during the aftermath of hurricane Katrina described National Guard using frequencies in the 80 MHz. band. Now that most of the TV broadcasters have been moved to UHF these mid-band frequencies should probably be checked a lot more frequently.

Bob, WoNXN

[BMT]

I think you will find SINCGARS mostly used here.


BMT

[prcguy]

FM, and while some SINCGARS radios might be used its unusual for them to frequency hop in the US unless the military guys are supporting DEA on an active mission.
prcguy

Originally Posted by KC2zZe

Are these VHF-low band frequencies, being used for avaition traffic, mentioned above in AM mode or FM mode?

[JASII]

I am thinking of doing some searching of low band to see if there are any new frequencies that the guard or reserve is using in my. In the past I would search using 151.4 because I seem to recall that the military was using what they were calling "new squelch", which was 150.0 hZ. Anyway, since the closest EIA standard tone is 151.4, I was using that. Anyway, should I be searching from 30-88 and what steps should I use? I seem to recall that is was in 50 kHz steps, but is 25 kHz what I should be using now?

[nd5y]

Use 25 kHz steps or smaller. Some scanners like the BCD396T actually search faster when set to 5 kHz steps.

[BMT]

The term narrowband refers to the narrowing of the channel
spacing between each designated allotment. Previously, the
spacing between each frequency allotment was based on 25-
kilohertz (kHz) center-channels. A narrowband channel reduces
the spacing requirements to 12.5 kHz between each allotted
frequency and contains the necessary channel emission bandwidth
to 11 kHz or less.

This is as of 1 JULY 2004.

BMT

[Hooligan]

Originally Posted by prcguy

and while some SINCGARS radios might be used its unusual for them to frequency hop in the US unless the military guys are supporting DEA on an active mission.
prcguy

I totally disagree. There are thousands of SINCGARS radios fielded, and they're used in the "FH" mode on a routine basis in the USA for various nets. The single-channel non-secure mode is used on some specific channels such as ATC, Range Control, & Medevac so that some users don't need to deal with the hassle of crypto custody & keyfills, but for combat training using their combat net radios, it'd be stupid to not incorporate the comsec/anti-jam features and experience/familiarity of using SINGCARS in the Frequency Hopping mode, as opposing forces do utilize COMINT as part of their ISR.

[Hooligan]

Originally Posted by BMT

The term narrowband refers to the narrowing of the channel
spacing between each designated allotment. Previously, the
spacing between each frequency allotment was based on 25-
kilohertz (kHz) center-channels. A narrowband channel reduces
the spacing requirements to 12.5 kHz between each allotted
frequency and contains the necessary channel emission bandwidth
to 11 kHz or less.

This is as of 1 JULY 2004.

BMT

So tie-that in to the US military use of the 30-88MHz spectrum, and please provide an official source. Standard freq spacing is still 25kHz, nor have they adjusted FM deviation...

[BMT]

I checked with our son who is an active duty GRUNT.
All tactical training is SINCGARS.

BMT

[Tech792]

10+ years ago, the A10s out of Barnes would use 64.10 and 64.45 on occasion for air/air while going to and from the Warren Grove range here in NJ. FM if I remember correctly.

[BamaScan]

According to Wikipedia on SINCGARS
"The frequency-hopping mode hops 111 times a second."
Now that would be impossible to hear. SINCGARS - Wikipedia, the free encyclopedia
77.10 is listed as a Military Air to Air Frequency I have never heard it in my area. I did pickup someone using 75.60 fm having a rag chew. Dont think they were military becuase they were using their full names.