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Author Topic: 6907 kHz USB XFL Calling EWD 6907 USB 2039 UTC 15 Oct 2018  (Read 318 times)

Offline R4002

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6907 kHz USB XFL Calling EWD 6907 USB 2039 UTC 15 Oct 2018
« on: October 15, 2018, 2041 UTC »
6907 kHz USB 6.907 MHz USB (monitored out of Westminster, MD KiwiSDR online receiver)

Heard XFL calling EWD (both callsigns read using NATO alphabet), XFL heard nothing - "this is X-Ray Foxtrot Lima, nothing heard, out." at 2039 UTC.  Very good signal on XFL.  Possible MARS net or other military?  American accented English.
« Last Edit: October 16, 2018, 1530 UTC by R4002 »
U.S. East Coast, various HF/VHF/UHF radios/scanners/receivers

Offline MegatonRange

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Re: 6907 kHz USB XFL Calling EWD 6907 USB 2039 UTC 15 Oct 2018
« Reply #1 on: October 26, 2018, 1356 UTC »
Those are US Army MARS ALE addresses. 6907.0 is one of a number of USA MARS ALE frequencies.

Offline R4002

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Re: 6907 kHz USB XFL Calling EWD 6907 USB 2039 UTC 15 Oct 2018
« Reply #2 on: October 26, 2018, 1407 UTC »
I had a feeling it was MARS or military in origin.  I've heard data transmissions on 6907 USB in the past so that also makes sense. 

Do you have a list of MARS frequencies in the 6765-7000 kHz range?  I know they use 6968.5 kHz USB as well as the FEMA SHARES frequencies 6765 kHz USB, 6845 kHz USB, 6855 kHz USB and 6910 kHz USB. 
U.S. East Coast, various HF/VHF/UHF radios/scanners/receivers

Offline MegatonRange

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Re: 6907 kHz USB XFL Calling EWD 6907 USB 2039 UTC 15 Oct 2018
« Reply #3 on: October 27, 2018, 1502 UTC »
Of course 6765.0, 6845.0 & 6910.0 are primary SHARES Regional frequencies. Since some MARS stations participate in SHARES, you'll hear them there, during SHARES nets. 6910.0 is also a MARS ALE frequency. Other MARS frequencies in the range you asked about, include 6907.0 (already noted), 6818.5, 6850.5, 6913.0, 6968.5 (already noted) & 6996.0. I don't normally follow MARS much except during their national exercises, so I may have missed one or two. 6913.0 may or may not be a current frequency. The last note on it I have was from a couple of years ago. All frequencies are USB. I feel like I'm missing some USAF MARS freqs between 6700.0 & 6800.0, but I'm drawing a blank right now....

Offline MegatonRange

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Re: 6907 kHz USB XFL Calling EWD 6907 USB 2039 UTC 15 Oct 2018
« Reply #4 on: October 27, 2018, 1507 UTC »
I had a feeling it was MARS or military in origin.  I've heard data transmissions on 6907 USB in the past so that also makes sense.
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I forgot to mention, the data transmissions are generally MIL-STD 188-110A, but it's encrypted almost all of the time.