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Author Topic: Limits of SW broadcasting bands 18 Sep 2019  (Read 2090 times)

Offline Jock Wilson

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Limits of SW broadcasting bands 18 Sep 2019
« on: September 19, 2019, 0010 UTC »
I recall that 5800 Khz is the low frequency end of the 49 metre international broadcast band.

In fact, there is a licensed stateside religious broadcaster operating on 5800 Khz AM.

Presumably said station broadcasts with high power - usually it is heard rather well  Europe-wide.   
« Last Edit: September 20, 2019, 1031 UTC by Ray Lalleu »

Offline Ray Lalleu

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Re: Limits of SW broadcasting bands 18 Sep 2019
« Reply #1 on: September 20, 2019, 1027 UTC »
I recall that 5800 Khz is the low frequency end of the 49 metre international broadcast band.

In fact, there is a licensed stateside religious broadcaster operating on 5800 Khz AM.

Presumably said station broadcasts with high power - usually it is heard rather well  Europe-wide.
I remember that the situation was not so clear after the extension of the broadcasting bands in the 1980/1990's, with years of delays and some sharing. Still utilities heard above 5800 now.

I'm going to split that discussion about broadcasting limits, and then move it to general  radio forum.

 
« Last Edit: September 20, 2019, 1032 UTC by Ray Lalleu »
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Offline Brian

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Re: Limits of SW broadcasting bands 18 Sep 2019
« Reply #2 on: September 20, 2019, 1235 UTC »
As far as I know it's 5900 although there are a number of legal stations below that.
The entire HF spectrum has legal stations broadcasting outside of the "official" bands.

Offline ukdxer

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Re: Limits of SW broadcasting bands 18 Sep 2019
« Reply #3 on: September 20, 2019, 1827 UTC »
According to Wikipedia, the 49mb runs from 5.9 to 6.2 MHz

https://en.wikipedia.org/wiki/Shortwave_bands
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Offline Ray Lalleu

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Re: Limits of SW broadcasting bands 18 Sep 2019
« Reply #4 on: September 20, 2019, 1846 UTC »
The link to the Monitoring Times (in the bottom of the Wikipedia page)
gives a much better answer to that question.
Saying that 5730-5900 can be used by broadcasting on a non-interference basis,

and many other details.

edit : the link is
www.monitoringtimes.com/html/swb.html

'non interference basis' is in the notes
« Last Edit: September 20, 2019, 2003 UTC by Ray Lalleu »
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Offline Brian

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Re: Limits of SW broadcasting bands 18 Sep 2019
« Reply #5 on: September 20, 2019, 1941 UTC »
The link to the Monitoring Times (in the bottom of the Wikipedia page)
gives a much better answer to that question.
Saying that 5730-5900 can be used by broadcasting on a non-interference basis,

and many other details.
Can you link to the specific section please.
I found the band plan but it doesn't mention anything about a non-interference basis.

Offline R4002

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Re: Limits of SW broadcasting bands 18 Sep 2019
« Reply #6 on: September 28, 2019, 1440 UTC »
It seems like a lot of stations broadcast just above or below the limits of the various SWBC bands.  It doesn’t help that the band limits seem to be slightly different according to various sources...and then you have variations from country to country.

WWCR on 12160 kHz / 12.160 MHz is a good example.  Apparently 25 meters is 11600 kHz to 12100 kHz.  There are also stations that broadcast below the 11.6 MHz “limit”. 

49 meters and 60 meters appear to be even more fluid as far as shortwave broadcasters using out of band frequencies...
U.S. East Coast, various HF/VHF/UHF radios/transceivers/scanners/receivers - land mobile system operator - focus on VHF/UHF and 11m

 

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