I keep reading here things like shortwave broadcasting is going away.
But the new QST has a report on an international radio conference
where they say the broadcasters are trying to get more frequencies
in the HF region. So what is going on?

On Dec 21, 8:34*pm, (Jim Haynes) wrote:
I keep reading here things like shortwave broadcasting is going away.
But the new QST has a report on an international radio conference
where they say the broadcasters are trying to get more frequencies
in the HF region. *So what is going on?

JH,

Digital Radio Mondiale (DRM) eats up the High Frequency
{Shortwave} Radio Spectrum.
http://en.wikipedia.org/wiki/Digital_Radio_Mondiale

A Listener's Guide to Digital AM (DRM)
http://www.radionetherlands.nl/featu...siers/drm.html

Where Shortwave Analog Broadcasters could use 10 kHz
Channel Spacing with the old AM Transmission Mode.

DRM Shortwave 'Digital' Broadcasters need to use 25 kHz
of Channel Spacing for Standard DRM; and 50 kHz for Wide
DRM of Channel Spacing with the DRM Transmission Mode.

* DRM Digital Signal 'centered' on 13790 kHz with
http://shortwaveradio.org/drm_13_Af_010511_2100.jpg
AM Analog Signals on 13770, 13800, and 13810 kHz
http://radio.org.pl/~sp2mkt/TS570/DRM/shape.jpg

* One of the 'Killer Features' of DRM is 18 kHz Double
Channel : Kills everything within 25 kHz of the Center
Frequency ~ 50 kHz.
http://www.drm.org/system/technicalaspect.php

* Only a DRM Radio Station Broadcasting in Mode 'A'
or Mode 'B' using 18/20 kHz of Spectrum can deliver
'FM Quality' Audio.
http://www.drmradio.co.uk/html/drm_bandplan.html
* The UK's AM/MW Band 'X' Band may be extented from
1642 kHz to 1782 kHz for DRM.

~ RHF

Jim Haynes wrote:
I keep reading here things like shortwave broadcasting is going away.
But the new QST has a report on an international radio conference
where they say the broadcasters are trying to get more frequencies
in the HF region. So what is going on?

SWBC here in Region 2 is going away. It may still make sense elsewhere
(though I doubt that very seriously) but not in the Americas.

In article ,
(Jim Haynes) wrote:

I keep reading here things like shortwave broadcasting is going away.
But the new QST has a report on an international radio conference
where they say the broadcasters are trying to get more frequencies
in the HF region. So what is going on?

What you are witnessing is the eternal battle between the clueless and
reality. SWBC is not going away anytime soon in any region.

--
Telamon
Ventura, California

On Dec 22, 1:11*pm, Telamon
wrote:
In article ,
(Jim Haynes) wrote:

I keep reading here things like shortwave broadcasting is going away.
But the new QST has a report on an international radio conference
where they say the broadcasters are trying to get more frequencies
in the HF region. *So what is going on?

- What you are witnessing is the eternal battle between the
- clueless and reality. SWBC is not going away anytime soon
- in any region.
-
- --
- Telamon
- Ventura, California
-

The Clueless being David
---and---
The Reality that while Shortwave Radio Broadcasting is in
a decline; it still is an effective way for Governments
and NGOs to "Get Their Message Out" to the majority of
People around the World that do not have the Internet and
can not afford a PC and Internet Connection.

Third World is still very much Free Over-the-Air Radio
where many still do not have a TV and AM & FM Radio
Stations are few and far between; and all Media is often
controlled by the local Government as a Propaganda Tool.

IMHO - Shortwave Radio Broadcasting still is the
Voice of Freedom with News and Information that
Crosses Borders : Unfiltered By local Governments.

and that's my opinion ~ RHF