BC-DX 789 05 Jan 2007 Private Verwendung der Meldun

located in the northwestern corner of Saudi-Arabia:
The transmitter plant is not located at the town of Duba but instead 15 km
northwest of it. It runs two 2000 kW outlets of Radio Riyadh main program
on 594 and 1521, the latter being off air during daytime (0600-1500). The
antennas for both frequencies, in the picture marked "1" (594)
ARS Duba 594kHz 2000kW 4dir 1tx 1reflector, from left.
27 26 55.79 N 35 35 28.06 E
and "2" (1521),
ARS Duba 1521kHz 2000kW 4dir 1tx 1reflector, from left.
27 26 39.30 N 35 35 26.37 E
aim at Cairo, so North America is in the direction of the main beam. Each
antenna system consists of six free standing towers with a triangular
shape. The height of these towers appears to be a bit more than half
wavelength, i.e. about 275 and 110 metres, respectively. The second tower
from the right is being fed, the one to the right of it acts as reflector,
the four ones to the left of it as directors.
There are also two single towers for ND transmissions, the one marked "6"
and another, somewhat taller one out of frame to the south. They should
belong to the 40 kW on 702.
ARS Duba 702kHz 100kW non-dir masts at
27 26 18.16 N 35 35 43.68 E and
27 26 03.42 N 35 35 51.77 E
The purpose of three other antenna systems, marked "3", "4" and "5",
remains unclear, but it seems that they are back-up antennas for 594 and
1521.
[maybe maritime station masts, distance between masts are 117 meters.
and a lot of Patriot rockets around too, acc to G.E. text icons. wb.]
Here in Germany Duba is the dominating station on 1521, it would be quite
listenable without the co-channel interference. The modulation is almost
the same than on the Riyadh shortwave transmitters, there is only a very
slight if any delay between 1521 and 9870 as well. Right now, around 2200,
they carry a call-in programme, apparently of a casual late-at-night style
as far as one can tell without understanding a single word of it.
(Kai Ludwig-D, dxld May 1)
Google Earth imagery.
ARS Jeddah MW 1512/1000 + 648kHz / 2000kW
21 14 36.64 N 39 09 37.99 E
and 15 kilometers south-east
ARS Jeddah SW site 9675/11855 kHz 50kW
21 07 35.16 N 39 13 51.40 E
SERBIA/BOSNIA [re: bc-dx TopNews #805 of Udo Krueger]
"MW transmitter in the Balkans these days. In darkness MW stations heard
from Italy (1449,1575,999,657) Bulgaria (747,1161,1224), Romania
(855,1179,1152), 810 from Macedonia not very strong, 1602 Zavidovici very
weak."
Correction: Zavidovici is on 1503 kHz (1502.9 kHz). The Bosnian station on
1602 kHz is Radio Boston from Sanski Most.
(Bengt Ericson-SWE, and Patrick Robic-AUT, Apr 28)
SOMALIA 6949.96 R. Bay (tent.), 1850-1900s/off, non-stop local music
and singing, local language announcements with tent. ID 1858 followed by
Koran reading until s/off, a very weak signal on 30 Apr.