SB QST @ ARL $ARLB041
ARLB041 IARU Region 1 Monitoring Service Reports an Apparent Success

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.

NNNN
/EX

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