BC-DX 789 05 Jan 2007 Private Verwendung der Meldun

1400 UT 15081 (15073 to 15088 kHz range)
1410 UT 15071 (15063 to 15077)
1425 UT 15062 (15054 to 15069)
1435 UT 15057 (15051 to 15063)
Nothing noted on symmetrical upper side of the nominal signal !
(wb, harmonics yg, dxld Oct 12)
As noted by Wolfgang and others, heard a lot of spurs interfering with my
listening of Voice of Russia on 15605 kHz at 1400 UT. Heard the
interference 2 days ago, on 11 Oct and again today 13 Oct. It was quite
strong here, Voice of russia was S9 on 15605 at 1400 and the interference
was stronger making it almost impossible to listen to the broadcast.
Hope they fix it soon.
(Gilles Letourneau-CAN, dxld Oct 13)
15550 seemingly from Lesnoy Moscow causes again some distortion on the 19
mb on range 15510 to 15677 kHz, minor distortion on the lower side, but
much stronger on upper side with two S=9+30 dB heavily distorted peaks on
15620 and 15630 kHz, latter covered Voice of Greece co-channel totally.
Checked again at 1400-1430 UT slot, Oct 13.
(wb, harmonics yg, dxld Oct 13)
VOR is still way out of whack, putting out big dirty spurs over portions
of the 15 MHz band, interfering with many other stations and even itself!
Sat Oct 13 at 1340, found Greece's English hour on 15630, Hellenes Around
the World, unlistenable due to the QRM. VOR in Hindi on 15605 also had the
QRM, which peaked roughly 15615-15630, but the spikes were also audible
above that and below including 15550, which is the nominal frequency of
the offending transmitter, ironically, with the same programming as 15605.
On 15550 itself, no carrier audible, just the spur's extremely distorted
modulation. Also QRMed VOA in Russian on 15565, and even the much stronger
RDPI on 15560.
At 1359 the VOR transmitters went into IS, but not synchronized with
15605. That frequency had switched program feeds and at 1400 played NA as
opening to English service, while the spurs continued, now having switched
to Urdu which to the Oklahoman is indistinguishable from Hindi. At 1401 NA
could also be heard weakly on 15660, the // during this hour for English,
but these were not exactly synchronized, 15660 running a few words ahead
of 15605 once they started talking.
Meanwhile I looked for the further spurs Wolfgang Bueschel reported the
day before in the 16.2+ MHz area. There was a continuous buzzing
motorboating sound at 16220-16250 or so, peaking at 16235, but nothing
resembling program modulation, so I could not correlate this with any of
the VOR 15 MHz channels. Nor was there a matching sound in the 15.0-15.1
MHz range.
Quit listening for a while, but quick recheck at 1446 found the 15 MHz
spurs gone with 15605 in the clear; there was a weak non-distorted signal
on 15550, language unknown. Apparently in the meantime the malfunxioning
transmitter was taken off the air, or possibly knocked back into whack.
Per Aoki, it is scheduled from 3718E, 5545N for a07:
15550 VOICE OF RUSSIA 1200-1300 1234567 Urdu 500 140 Moskva RUS VOR
15550 VOICE OF RUSSIA 1300-1400 1234567 Hindi 500 140 Moskva RUS VOR
15550 VOICE OF RUSSIA 1400-1500 1234567 Urdu 500 140 Moskva RUS VOR
This situation, with daily variations has been going on for most of a
week, and the Russian transmission authorities have been notified of it.
Why in the world don't they close down the bad transmitter until and
unless they can repair it? Keeping it on the air certainly does VOR no