HFU HF Underground
General Category => General Radio Discussion => Topic started by: Jock Wilson 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.
-
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.
-
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.
-
According to Wikipedia, the 49mb runs from 5.9 to 6.2 MHz
https://en.wikipedia.org/wiki/Shortwave_bands
-
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
-
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.
-
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...