HFU HF Underground

Loggings => Utility => Topic started by: ~SIGINT~ on June 03, 2021, 0141 UTC

Title: UNID chirps 6803.4 and 6846.4 kHz 0130 UTC 03 JUNE 2021
Post by: ~SIGINT~ on June 03, 2021, 0141 UTC
01:30 UTC - Picking up a series of chirps transmitted at approx 4 second intervals on 6845.0 kHz USB. The chirps are in sync with the chirps also simultaneously transmitted on 6804.0 kHz USB.
01:36 UTC - Transmissions have ceased.

(http://www.milspec.ca/board/img/2021-06-02_212858.png)

RSPduo | Barker & Williamson antenna | Toronto, Ontario Canada
Title: Re: UNID chirps 6845.0 kHz 0130 UTC 03 JUNE 2021
Post by: ~SIGINT~ on June 05, 2021, 0009 UTC
00:05 UTC 05 JUNE 2021 - UNID chirps are currently active on 6845.0 kHz and 6804.0 kHz. The composition of the signal is 3 x pips (carrier) for each sounding.

(http://www.milspec.ca/board/img/2021-06-04_201234.png)
(http://www.milspec.ca/board/img/2021-06-04_203702.png)

RSPduo | Barker & Williamson antenna | Toronto, Ontario Canada
Title: Re: UNID chirps 6845.0 kHz 0130 UTC 03 JUNE 2021
Post by: ~SIGINT~ on June 15, 2021, 0056 UTC
00:55 UTC 15 JUNE 2021 - UNID chirps are currently active. Good strong signal tonight.

RSPduo | Barker & Williamson antenna | Toronto, Ontario Canada
Title: Re: UNID chirps 6845.0 kHz 0130 UTC 03 JUNE 2021
Post by: ~SIGINT~ on June 16, 2021, 0032 UTC
00:30 UTC 16 JUNE 2021 - UNID chirps are currently active. Good signal again tonight.

RSPduo | Barker & Williamson antenna | Toronto, Ontario Canada
Title: Re: UNID chirps 6845.0 kHz 0130 UTC 03 JUNE 2021
Post by: ~SIGINT~ on July 19, 2021, 2312 UTC
22:43 UTC 19 JULY 2021 - UNID chirps are currently active. Actual centre frequencies are 6803.4 kHz and 6846.4 kHz.

Also now observing an identical transmission on 11150.0 kHz. Posted in a seperate thread: UNID chirps 11150.0 kHz 2243 UTC 19 JULY 2021

https://www.hfunderground.com/board/index.php/topic,84110.msg272270.html#msg272270 (https://www.hfunderground.com/board/index.php/topic,84110.msg272270.html#msg272270)

RSPduo | Barker & Williamson antenna | Toronto, Ontario Canada
Title: Re: UNID chirps 6845.0 kHz 0130 UTC 03 JUNE 2021
Post by: ~SIGINT~ on July 22, 2021, 2353 UTC
23:52 UTC 22 JULY 2021 - UNID chirps are currently active. Actual centre frequencies are 6803.4 kHz and 6846.4 kHz. Nice strong signal tonight;
02:00 UTC 23 JULY 2021 - UNID is still chirping strong with nice strong signal.

RSPduo | End-fed longwire antenna | Toronto, Ontario Canada
Title: Re: UNID chirps 6803.4 and 6846.4 kHz 0130 UTC 03 JUNE 2021
Post by: ~SIGINT~ on July 29, 2021, 2339 UTC
23:30 UTC 29 JULY 2021 - Observed that the UNID chirps started transmitting on the 6 MHz frequencies around 23:30 UTC. Nothing on the 11 MHz frequencies thus far. Nice strong signal again tonight.

RSPduo | Barker & Williamson antenna | Toronto, Ontario Canada