HFU HF Underground

Loggings => Other => Topic started by: Traveling Wave on February 23, 2017, 2219 UTC

Title: UNID 6968.40 kHz USB 2130 UTC 23 Feb 2017
Post by: Traveling Wave on February 23, 2017, 2219 UTC

2130-2135 UTC - Heard two english speaking stations  making contact with call signs AAR4FF (male )  and AAR4KJ (female) .  Difficult to pull them out of the static, signal was S5 in WNY. Data transmissions did occur.
2200 UTC - The AAR4KJ identified again but difficult to understand, sounded like official signoff.
Any idea who it could be.  ???

Title: Re: UNID 6968.40 kHz USB 2130 UTC 23 Feb 2017
Post by: refmo on February 24, 2017, 0130 UTC

Those callsigns are Region 4 Army MARS (military auxiliary radio service).
https://en.wikipedia.org/wiki/Military_Auxiliary_Radio_System (https://en.wikipedia.org/wiki/Military_Auxiliary_Radio_System)

Title: Re: UNID 6968.40 kHz USB 2130 UTC 23 Feb 2017
Post by: Traveling Wave on February 24, 2017, 1540 UTC

Thanks ! :)

Title: Re: UNID 6968.40 kHz USB 2130 UTC 23 Feb 2017
Post by: Josh on February 24, 2017, 1640 UTC

They often use 110A as the datamode, there are decoders out there freely available if your google fu is good enough. Also, sometimes the message is offline encrypted but not always.