-----Original Message-----
From: topband-bounces@contesting.com [mailto:topband-bounces@contesting.com]
On Behalf Of Harold Smith
Sent: Freitag, 4. Juli 2008 19:29
To: Peter Voelpel; Topband@contesting.com
Subject: Re: Topband: Power
If the "every body else" stations run legal power the illegal power from the
"big guns" in that case is 1,5MW?
The big differences in signal strength are generally caused by location and
antennas, not by power
73
Peter
Actually in that case the "big gun would be running in the excess of
240,000,000 watts.
S5 to S9 = 16 times the power. S9 to +40dB = 10,000 times.
Going from 1.5kW to 12kW out will gain you 3 S units. But on 160 that could
make a huge difference
I have visited, "The Langenburg Sender" in Germany. They were running 960kW
input on 1584kHz. That "rig" would not come close to fitting on my property.
The power supply alone was bigger than my house.
Price W0RI
Hi Price,
You are right, I just calculated with 40db, left out the other 4 S-units.
I was about 12 years old when I started to get interested in radio and many
afternoons after school I went to the "Langenberger Sender" by bicycle, the
transmitter site was only 12km away from our home.
Most times I saw no people there but once I had the luck to catch one of the
technicians.
He explained most things to me and showed me around, also in the transmitter
hall.
Later I learned that he was a ham.
At that time (1958) the power output was 800KW on 1586kHz.
In 1975 the frequency became 1593kHz with additional 200KW on 720kHz.
For some years "Radio Free Europe" was using the 1593kHz transmitter.
That site still exists but had to reduce power in 2007.
Today the are still on 1593kHz but transmit DRM now all with solid state.
Some fotos here:
http://www.velberteransichten.de/sender.htm
73
Peter
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