HFU HF Underground

Loggings => 10/11 meters => Topic started by: RobRich on December 19, 2022, 1237 UTC

Title: 11m Band Activity 19 DEC 2022
Post by: RobRich on December 19, 2022, 1237 UTC
The 11m band is waking up. Mostly groundwave about an hour ago. DX started around 1220z.

Airspy HF+D and 31' vertical elevated on 10' mast.

1222z - 27025a - Usual Ch6 traffic. Caribbean, East Coast, etc. so far.
1223z - 27385l - Intermittent traffic, plus QRM music earlier
1225z - 27405l - Weak signal DX, sounds North American
1227z - 27540u - Weak signal DX, sounds European
1227z - 27610u - European DX, French language
1230z - 27695u - digital data
1232z - 27755u - digital data
1232z - 27515l - Spanish-language QSO
1233z - 27475u - Weak signal traffic
1236z - 27540u - European DX, French language
1237z - 27555u - Venezuela op working DX
1239z - 27475u - Various European DX traffic including an op in Wales

1352z - multiple frequencies - 11m band is generally open for DX
Title: Re: 11m Band Activity 19 DEC 2022
Post by: R4002 on December 19, 2022, 1514 UTC
Sounds like another excellent opening.

I heard a fair amount of UK FM CB chatter (especially on channels 6, 19, 38, 39 and 40 - so 27.651 FM, 27.781 FM, 27.981 FM and 27.991 FM).  Noted POCSAG activity on 27.450 MHz, 27.650 MHz, 27.700 MHz, 27.750 MHz and multiple data/pager signals around 27.85 MHz (offset frequency, 27.846 MHz or 27.847 MHz). 

The usual UK 26 MHz band paging frequencies were also alive - 26.695 MHz, 26.700 MHz, 26.705 MHz, 26.745 MHz, 26.750 MHz MHz, 26.755 MHz...with Spanish language taxi dispatchers mixing in (26.765 MHz AM had a very good signal over the weekend, YL taxi dispatcher).  Taxis active on 27.785 AM while UK FM came in on 27.781.25 FM.  European pagers booming in on 26.800 MHz, 26.850 MHz, 26.900 MHz, 26.950 MHz and 27.300 MHz.  UNID data signals on 26.940 MHz, 26.945 MHz, 26.950 MHz, 26.955 MHz, 26.960 MHz...

UK hospital paging active on 31.725 MHz, 31.750 MHz and 31.775 MHz as well.  Strangely, the 29 MHz frequencies seemed quiet.   27.975 AM with Spanish language OM chatter.   Fair amount of AM signals in the lower portions of 10 meters (CBers in 10 meters), namely 28.005 AM, 28.035 AM, 28.055 and many other frequencies, up to 28.235 MHz.

Lots of interesting UNID signals in this band, CB is not dead!

An interesting note regarding French language chatter, I've noticed that French chatter seems to pop up in the upper reaches of the 25.615 MHz to 30.105 MHz coverage of most export rigs, especially in the 27.9 MHz to 28.0 MHz region, including 27.995 MHz USB, 27.997 MHz LSB, and 29 MHz band frequencies, namely 29.775 MHz AM, 29.815 MHz AM, 29.825 MHz AM, 29.875 MHz AM, 29.905 MHz AM, 29.915 MHz AM, 29.925 MHz AM and 29.975 MHz AM.  The 29 MHz AM signals all sounded like freeband CBers - but the language was only French. That, or its a land mobile user (legit, licensed user).  Probably not though, considering use of AM mode.  Another interesting indicator are the 29 MHz pagers - 29.750 MHz, 29.800 MHz, 29.850 MHz, 29.900 MHz, 29.950 MHz.  Canadian hospitals are still found on 30.020 MHz (and others). 
Title: Re: 11m Band Activity 19 DEC 2022
Post by: Zerobeat2022 on December 19, 2022, 1759 UTC
Alot of SSTV activity on 27.700 today !
Title: Re: 11m Band Activity 19 DEC 2022
Post by: RobRich on December 19, 2022, 1851 UTC
SSTV should be active through early January. 20m for amateurs, and 11m for freebanders.

https://swling.com/blog/2022/12/sstv-fiesta-2022/



Not sure about the French chatter on AM modes, as I rarely spot AM chatter between US 11m CB and 28MHz here. I agree Canada does sound like a viable candidate, especially for ya'll further north.

Most of the French-language 11m DX monitored here is SSB. Usually Caribbean or France, though occasionally I hear French Guyana.
Title: Re: 11m Band Activity 19 DEC 2022
Post by: shadypyro on December 19, 2022, 1858 UTC
Getting Latin America on 27455 USB at 18:55 UTC and the usual suspects on 11 meters using my Tecsun PL-880 MLA-30+ loop antenna pointed NW SE