Monitoring System (IARUMS)

Media Broadcast leaves 7200 kHz

DJ9KR (Uli Bihlmayer) sent a complaint to Media Broadcast regarding the interference on 7200 kHz by a customer of MEDIA NETWORK from Issoudun, France. An reply was received by MEDIA BROADCAST project leader which confirms the frequency change and the resolution of the interference. Great action from DJ9KR (Uli)!  

7 MHz - Chinese OTH Radar

Caused by improving conditions the Chinese OTH Radar was audible on 7030 - 7080 kHz on Oct.28th at 1500 UTC. Parameters: 43 pulses/sec, well known... soundfile, click here! We were not amused!

Russian Airforce Moscow on 7117 kHz

The Russian Airforce Moscow is transmitting daily on 7117 kHz in F1B with 50 Bd and 1000 Hz shift. Most of the time you can hear an idling signal. Every full hour and 40 minutes the ident "REA4" is transmitted in CW on the mark frequency 7117.5 kHz. In earlier times the same system was often active on 7018 kHz. Complaints of the German PTT were disregarded.

7030 kHz - Intermodulation by Radio Belarus

An intermodulated emission by Radio Belarus is disturbing 7030 kHz in AM every evening. This signal is produced by a mixture of emissions on 7210 and 7390 kHz. Calculation: 2  x 7210 = 14420   ---   14420 - 7390 = 7030 kHz. An earlier complaint of the German PTT (BNetzA) has not been regarded!

Russian OTH Radar disturbs 20 m

The Russian OTH (over-the-horizon) Radar "ABM2" (NATO name "Steelyard") is active on 14255 kHz, 10 kHz wide, every morning. Parameters: Sweepgenerator system, working with 50 pulses/sec. Location of the ABM2-radar: North West of Smolensk. The German PTT (BNetzA) has been informed to support on the resolution.

Please inform your national PTTs! 

Weatherfax on 14001.9

In the evening hours of Friday September 18, 2009 a strong WXfax signal appeared on 14001.9 kHz. DK2OM bearings pointed to USA with the following details: 120 rpm / IOC 576 - wxcharts with air pressure, winds and oceansurface details - showing the eastcoast of USA, the Atlantic and West-Europe. The transmissions came from the US Coastguard. AA3GZ (Jack) and K0BOG (Chuck) were informed. Jack in turn phoned the US Coastguard. They promised to solve the problem. Many thanks to AA3GZ for the fast action!

Royal Navy in Faslane, Scotland - intrusion on 40m

On Friday, September 18, 2009 I found a strong F1B signal on 7101.7 kHz (75 Bd, 850 Hz shift - Baudot). The ident was "MGJ". This ident belongs to the Royal Navy in Faslane, Scotland. Interference was reported to the German PTT (BNetzA) at Konstanz. In turn interference was reported to the British PTT (Ofcom). About 20 minutes later the transmission was finished. Many thanks to BNetzA and Ofcom!

BC Frequency Changes on 7100 - 7200

WRTH Online latest news revealed that the following broadcasters have left the range 7100 - 7200 kHz:

Indian BC-Stations:

kHz         Name of Station          QSY to kHz
7105        Lucknow                       7440
7115        Port Blair                       7390
7120        Jaipur                           7325
7130        Shillong                         7315
7140        Hyderabad                     7420
7150        Delhi                             7370
7150        Imphal                          7335
7160        Chennai                        7380
7180        Bhopal                          7430
7195        Mumbai                         7340

Other BC-Stations:

7100        R. Eritrea                     7220 or 7210
7110        R. Belarus (Hrodna)       7280
7185        SABC, South Africa        7285