Ron Hardin schrieb:

It takes only half the energy for the carrier, so has half the
waste of regular AM, since the carrier carries no information.

There is NO carrier on sideband transmission. So there are some options.
They hold on the center frequency and use one or both sidebands.
In first case there is only a quarter of power needed for to reach at
least the same distance. In the second case there is half the power
needed and there is an theoretical option for stereo transmission on ISB
(independent side band). But receivers capable of ISB are very rare and
mostly found in the league of professional grade Siemens or Harris
receivers.....
Or they can shift the transmitter center frequency up or down by 2.5khz
and then tranmit with true 5khz bandwidth on a single side band which
can be a big advantage in sound compared to other sw stations.

Volker Tonn wrote:

Ron Hardin schrieb:

It takes only half the energy for the carrier, so has half the
waste of regular AM, since the carrier carries no information.

There is NO carrier on sideband transmission.

There is on the WBCQ 5105 transmission. The LOWER sideband is supressed,
leaving all the energy (carrier) in the UPPER sideband.

Check it out. Get back to us.

dxAce

dxAce schrieb:

Volker Tonn wrote:


Ron Hardin schrieb:


It takes only half the energy for the carrier, so has half the
waste of regular AM, since the carrier carries no information.

There is NO carrier on sideband transmission.


There is on the WBCQ 5105 transmission. The LOWER sideband is supressed,
leaving all the energy (carrier) in the UPPER sideband.

Check it out. Get back to us.

Nothing but static noise on my side right now in the afternoon. Maybe
they make it here (Germany) on sunset on the transmitter site....

I just reread the initial post. It makes sense.
I even think they transmit an USB signal with carrier added and not full
AM with supressed LSB.

Volker Tonn wrote:

dxAce schrieb:

Volker Tonn wrote:


Ron Hardin schrieb:


It takes only half the energy for the carrier, so has half the
waste of regular AM, since the carrier carries no information.

There is NO carrier on sideband transmission.


There is on the WBCQ 5105 transmission. The LOWER sideband is supressed,
leaving all the energy (carrier) in the UPPER sideband.

Check it out. Get back to us.

Nothing but static noise on my side right now in the afternoon.

Well... they do leave 5105 at 1200...

I believe they may be back at 2100, but not sure.

dxAce

Maybe
they make it here (Germany) on sunset on the transmitter site....

I just reread the initial post. It makes sense.
I even think they transmit an USB signal with carrier added and not full
AM with supressed LSB.

dxAce wrote:

Volker Tonn wrote:

dxAce schrieb:

Volker Tonn wrote:


Ron Hardin schrieb:


It takes only half the energy for the carrier, so has half the
waste of regular AM, since the carrier carries no information.

There is NO carrier on sideband transmission.


There is on the WBCQ 5105 transmission. The LOWER sideband is supressed,
leaving all the energy (carrier) in the UPPER sideband.

Check it out. Get back to us.

Nothing but static noise on my side right now in the afternoon.

Well... they do leave 5105 at 1200...

I believe they may be back at 2100, but not sure.

I just went to the WBCQ website, maybe it's just me, but I sure do hate
broadcasters who do not have their schedule information READILY accessible on
their websites.

Lots of other damn junk there, for sure.

dxAce

Maybe
they make it here (Germany) on sunset on the transmitter site....

I just reread the initial post. It makes sense.
I even think they transmit an USB signal with carrier added and not full
AM with supressed LSB.