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TA2BBS > QST 16.11.16 04:05l 64 Lines 2855 Bytes #-2863 (0) @ WW
BID : ARLB041
Read: GUEST DF7EAV DK3UZ
Subj: ARLB041 IARU Region 1 Monitoring Service Reports an Apparent
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ZCZC AG41
QST de W1AW
ARRL Bulletin 41 ARLB041
>From ARRL Headquarters
Newington CT November 15, 2016
To all radio amateurs
SB QST ARL ARLB041
ARLB041 IARU Region 1 Monitoring Service Reports an Apparent Success
The International Amateur Radio Union Region 1 (IARU-R1) Monitoring
System (IARUMS) reports that the Russian military apparently
responded positively to a complaint from German telecommunications
authorities to eliminate an intruding signal on 20 meters. The
Russian Navy "RDL" signal from Crimea had been transmitting on
14.180 MHz, using F1B at 50 baud and 200 Hz shift for several days.
IARUMS said the transmissions were heard for the last time on
October 31. IARU Region 1 includes Europe and Africa.
German telecommunication authorities have, so far, had less success
in quelling the intrusion of Radio Eritrea (Voice of the Broad
Masses) on 7.185 MHz, which Ethiopia is said to be jamming with
broadband white noise. So far, Germany has filed two official
complaints. IARUMS reports that 7.146.5 MHz and 7.175 MHz are still
in use by Radio Eritrea. The jamming signal reported by the IARUMS
is 20 kHz wide on each channel. The on-air conflict has been going
on for years, and the interfering signals can be heard in North
America after dark.
IARUMS Coordinator Wolf Hadel, DK2OM, said the Russian
Over-the-Horizon radar (OTH) "Konteyner RLS" remains a problem on 40
and 20 meters, with lengthy transmissions, often with many spurious
emissions. Hadel said the radar's transmissions interfered with
participants in the Worked All Germany Contest in mid-October.
One apparently frustrated radio amateur in Germany "tried again to
chase away Russian MIL FSK traffic on 80 and 40 meters by
transmitting dashes on the mark or space frequency," the latest
IARUMS newsletter reported. Hadel cautioned that such actions, even
when aimed at intruding signals, are illegal. German
telecommunications authorities were alerted. IARUMS also reported
someone was transmitting empty Stanag 4285 mode signals on 7 MHz,
hunting and QRMing German contesters on October 29. That signal was
also believed to be originating in Germany. The Stanag 4285 modem is
used for HF radio links between the NATO military bases.
IARUMS also reported an OTH radio on 10 meters, transmitting daily
on 28.960 MHz covering about 50 kHz "with many spurious emissions."
Strong F2 propagation has also made Brazilian CBers audible on 10
meters, running AM between 28.000 and 28.325 MHz.
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