NATO AWACS - Aero Off Route Region 1 question

[cj5]

I was tuning in to this set of HF frequencies tonight, and noticed a lot of traffic (3900 - 3945 kHz in steps of 3). Is this in fact NATO AWACS? And if it is, is it somehow encrypted? I tried messing around with the fine tuning, but all I hear is what sounds like simple voice inversion. It sounds like somebody talking, but no sense can be made of it.

 

[n2nov]

That frequency range is part of the amateur radio 80m band in Region 2 and uses LSB.
If you hear traffic that is not LSB/amateur, then it most likely is in USB unless it is an
intentional deviation from the norm. Can you submit an audio sample in both LSB & USB?

 

[cj5]

I suspected that, and on some of the frequencies I had switched over to the LSB, but couldn't get anything. I will make an attempt at getting a sound byte today for you.

 

[mattcawby]

This is what an American AWACS sounds like, Goliath Bravo and some F-16's a few years ago over Washington:
http://microvoltradio.com/vr1355/awacstraining.mp3

 

[cj5]

Nope, mine sounds nothing like that. I suspect what I'm listening to are HAM operators on LSB. Are AWACS transmissions generally encrypted?

 

[bsavery]

This is what an American AWACS sounds like, Goliath Bravo and some F-16's a few years ago over Washington:
http://microvoltradio.com/vr1355/awacstraining.mp3

That file doesn't seem to want to load for some reason.

Bob

 

[kb2vxa]

Hi CJ and all,

Ask yourself the question "What's military traffic doing in the 75M Amateur phone band?" and you'll have your answer. One you may come up with is "it's not military" and another is "my receiver is picking up an image" and still another is "beats the hell out of me". I have been an SWL for 40+ years and have never heard anything but hams and the odd ITU Region 1 broadcaster there.

FYI, Amateur SSB transmissions on 160M, 75M and 40M are LSB, below 40M they are USB. Commercial and military SSB transmissions on all bands are USB.

Now there MAY be a reappearance of "Yosemite Sam", testing of a new military system which can and has popped up anywhere and everywhere. I say >may< because I haven't heard any reports of it being active for the past 6 months or so.

 

[cj5]

The 75M band doesn't come in at all on LSB. Usually, by default, I have USB mode set, then if I hear the warbly voice in that mode, I switch to AM first, then LSB to see if that's where the transmission is coming over. It almost sounds weaker on LSB, and even more warbly. It definitely isn't "Yosemite Sam". The characteristics of the transmission are usually two in-tandem voices, but what makes me think it is military or operational, is the fact that I can make out some heading read offs, and "OVER", after each voice stop. But this could also be some very professional HAM operators. Who knows?! I still have a lot to learn in the world of amateur radio, and I appreciate all the advice you guys provide.

73,
C.J...

 

[rinkerk]

Hello group,
I've been monitoring the 75m band, for a few days now.
Nothing comes up as Mil Comms untill you get above say 4.2 MhZ.
What your hearing are Hams running on both USB LSB ( and a few attempts at AM and from what I can tell DSB and some Dig. Modes.)
I do have an interesting intercept on 4079 CW.
It's a very weak sig at it's strongest here in the Southwest US at 1400z.
Skysweep and other decoders cant seem to decode it reliably due to QRN etc. So the old fashion way is by ear. From what I can tell, it's a CW marker . Either OF6H or OF64.
A qiuck check on wun and looking on Monteria for the Freq. ID it's not listed. Does anyone hear this CW marker? Any ID'S?
At this same time ( local) 8483 HLG booms in here from S. Korea and on 4258 XSG Shanghai as srtong too. So I'm kinda thinking this CW marker on 4079 is way east of me as it fades well before local sunrise Mountain time here.
Can anyone ID the marker on 4079?
Cheers.
Kevin

Central New Mexico.