JAMMING
I can comfirm that on 3rd of this month 1377 khz 'jamming' can be heard. But, Today (4th of december) I didn't hear it. I paid attention to the assumption that Iranians jamming TWR broadcast from Gavar. In the assigned time I heared no bubbling noise. The monitoring task is difficult: the frequency is occupied by 3 station. 1st is France Bleur, 2nd is Radio Ukraine 1st channel, 3rd is the Gavar transmitter.
Thanks, Tibor Gaal, HNG (4/12-2010)
JAMMING
But off again today, at least so far (1447 UT).
73, Mauno Ritola, mwcircle yg (4/12-2010)
JAMMING
"Jamming " noise on 1377kHz: I noticed that this was back yesterday after an absence of about 10 days.
73 Steve Whitt, mwcircle yg (4/12-2010)
JAMMING
IRAN/ARMENIA
A jammer-like noise heard on 1377 kHz during November in the late afternoon and early evening period appears to have been originating from a faulty transmitter at Gavar in Armenia, used for relays of Voice of Russia and TWR.
(items on p.20, 32, 34, by Rumen Pankov-BUL and Tony Rodgers-UK, on BrDXC-UK Communication magazine, (2/12-2010)
JAMMING
Comment - Re jammer like noise on 1377 kHz.
That's REAL JAMMING BY IRANIAN GOVERNMENT AUTHORITY AGAINST CHRISTIAN PROGRAM BROADCAST OF TWR EUROPE from Vienna, Austria.
According to their B-10 winter schedule TWR rents Armenian MW powerhouse Gavar mediumwave on 1377 kHz between 1800 and 2107 UT, in Arabic, Persian, Iraqi Arabic, Assyrian, Qashqai, and Uzbek language.
The Armenian engineers at Gavar site are much clever too, that oscillating signals of a faulty MW tx would not to outlast a single hour ... so stated at 99%, that oscillating signal is an Iranian jammer action against Trans World Radio broadcast, against language broadcast, spoken in that Middle East area.
Two MW directional antennas erected on Gavar Armenia bc center during USSR era:
1377 kHz. MW Srednyaya Zarya antenna, 26 masts 2.2 km long at 180 degrees, towards Iran, Iraq, and Kuwait target. 40 24 54.62 N 45 12 40.12 E
1350 kHz. MW SV4+4 - 8mast directional, 232degr towards Israel, at 232 degrees.
40 24 07.65 N 45 11 54.26 E
Wolfgang Bueschel, wwdxc BC-DX TopNews (2/12-2010)
JAMMING
Dear Friends,
From 22nd (monday) of November 2010, I don't hear the 'jamming' sound on 1377 khz.
Tibor Gaal Hungary (26/11-2010)
JAMMING
DRM or WHAT?
I was trying Cyprus (BBC) on 1323 moments ago, and found a DRM like signal afecting reception of the only audible stns, Gold (Brigton 500 watt) and VoRUS in Ru. via Wachenbrunn.
Similarly to the 1377 case reported days ago, this signal is severely attenuated if LSB is selected.
It seems to come from the east - any attempt to jamm the BBC Cyprus relay?
73, Carlos Gonçalves, Portugal via dxld yg (13/11-2010)
JAMMING
In Holland the jammer and the jammed station can be heard from 1430-2100 UTC. The jammed station is best readable on 1374 kHz, even though it transmits on 1377 kHz. Sometimes they broadcast in Russian, but mostly in Farsi. Sometimes they relay Farsi broadcasts by Transworld Radio (with the usual TWR interval signal). I think either Iran or friends of Iran are jamming the Farsi broadcasts. Bearing of the jammer is 090 degrees (my QTH is 10 miles South of Amsterdam).
Joost de Groot (13/11-2010)
JAMMING
1377 kHz: This abnormal signal (jammer? [I don't think so], tx malfunction?) is not audible, if USB is used. It's pretty strong here in Portugal.
73, Carlos Gonçalves via dxld yg (12/11-2010)
JAMMING
Friends,
I sent an e-mail to the address mentioned on www.radio-int.am Contact menu:
info@radio-int.am
But, my letter arrived back with an error message from rambler.ru.
I think this address (info@radio-int.am) has been non-exist.
Tibor Gaal (12/11-2010)
JAMMING
Since Monday "bubble jamming" on 1377 has been reported, as quoted at
http://mediumwave.info/news.html
Further observations by Karl-Heinz Stuckatz corroborate the assumption that this is the carrier of the 1377 kHz transmitter in Armenia, swinging around due to a malfunction, as it was recently the case with a now closed shortwave outlet from Lesnoy (Russia).
He writes that the wobbling starts around 1400 UT and that afterwards another program that sounds like Russian can be heard behind France Info. This exactly matches Voice of Russia in Russian, which is acc. http://rus.ruvr.ru/rusradio.html carried on 1377 from 1400 to 1600 (refer to the Moscow Time dates on the schedule page, not the "UTC" conversion which is still given as the -4 hours that apply during summer time only).
By the way, the operator of the AM transmitters in Armenia has this presentation:
http://www.radio-int.am
Concerning http://www.radio-int.am/eng.html : "PB" are cyrillic characters, in English to be transliterated as "RV". It are the designators of the transmitters, not to be taken as call signs in the American sense. The names underneath are the transmitter models. As an
example the new, currently used Krasne (Ukraine) transmitter and two of the Grigoriopol units are Kondors as well, while the now dead and probably meanwhile scrapped Ulbroka (Latvia) transmitter was another Grom. Can't recall right now which other site has Bob transmitters, too...
And the list of mediumwave equipment is of course incomplete, mentioning
in detail only the 1314 kHz facility.
Kai Ludwig via dxld yg (11/11-2010)
JAMMING
2010-11-10 1612Z - 1377 kHz: Both France Info and interfering signal are coming up now. Suspect that transmitter fault is the correct answer, as the interference has changed. The bubbling is faster and the centre frequence has moved up. Estimate the interference to null circabout 20 degrees east of France Info's null. Hope that helps someone to find the broken unit.
Reynir H. Stefansson, Iceland (10/11-2010)
JAMMING
1377 kHz: This might be possibly the case. I think I heard the "jamming" disappear at 2003utc and EMWG lists programming at Gavar end at 2002utc.
However EMWG also lists transmission from 2115-2300utc. But the "jammer" did not reappear.
So is EMWG schedule accurate? Or does Gavar use a different tx for thi later transmission? Or is the noise from another transmitter?
73 Steve Whitt, mwcircle yg (9/11-2010)
JAMMING
2010-11-09 - 21:06Z - Both signals went near-simultaneously off-air at 2100Z.
Reynir H. Stefansson, Iceland (9/11-2010)
JAMMING
2010-09-11 20:07Z - Very audible bubble-jammer-like signal on 1377kHz, LSB.
2010-11-09 20:28Z - I put on shoes (that lawn is under snow) and took the Panny tranny outside. The strange signal seems to come from a more easterly direction than France Info. Also, signal strength varies a lot against the French signal. Totally clueless if this is a transmitter fault or a Cold War flashback.
Reynir H. Stefansson, Iceland (9/11-2010)
JAMMING
Recently a strong jamming signal has appeared on the USB of 1377kHz.
I think I just noticed the jammer sign-off at 2003utc 9/11/10.
Can members get an approximate direction so that we may pin down the country of origin?
It seems to be SE of the UK & Netherlands, so some direction measurements from Italy, Russia, Eastern Europe, Greece would be really helpful.
Can anyone help?
73 Steve Whitt, mwcircle yg (9/11-2010)
I think Gavar tx has a problem, giving this bubble jammer -like sound.
73, Mauno Ritola, Finland mwcircle yg (9/11-2010)
JAMMING
1377 kHz: Here, in the Republic of Hungary [western part], today evening I also hear that jamming. It is a possibility that a transmitter broke down and this emits that sound and not an intentional jamming.
Tibor Gaal, Hungary (9/11-2010)
JAMMING
Jamming on 1377 inaudible in E. Iceland. Using a SuperTech SR-16HN (rebadged ATS-803A) portable.
Reynir H. Stefansson, Iceland (9/11-2010)
JAMMING
Today, Monday the 8 th of Novembre a very "old fashioned" radiosignal is audible on 1377 KHz. A wobbel jammer station is causing a lot of QRM for France Info from Lille. Is there anyone who knows which country is started this - radiowar -? The signal is coming from the south-west, here in the northern part of Holland. Is the jammer for, or coming from Iran location Irib? Or for Radio Free Afrika in Tanzania - Mwanza
W. Prins, Haren, The Netherlands (8/11-2010)
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JAPAN
This ad appeared a few days ago, for replacement of the two towers in the antenna system. The feed system was just rebuilt a year or two ago. This is the 50 kW AFRS transmitter Momote on 810 kHz:
SOLTYPE~FedBizOpps Presolicitation
AGENCY~Department of the Air Force
OFFICE~Pacific Air Forces
LOCATION~374 CONS - Yokota
CLASSCOD~N
OFFADD~Department of the Air Force, Pacific Air Forces, 374 CONS - Yokota, Unit 5228, Yokota AB, APO Japan, ., 96328-5228
SUBJECT~N -- Remove/Replace Two AFN Phase Array Antenna System Towers at Momote, Japan
SOLNBR~FA5209-05-R0018
RESPDATE~081005
CONTACT~Sumiyo Ohi, Contract Specialist, Phone 81-42-551-6120, Fax 81-42-551-0973, Email sumiyo.ohi@yokota.af.mil - Geoffrey Diehl, Contracting Officer, Phone 81-42-551-6120, Fax 81-42-551-0973, Email geoffrey.diehl@yokota.af.mil
URL~www.eps.gov/spg/USAF/PAF/374CONS/FA5209-05-R0018/listing.html
NAICS~811213
DESC~Remove/Replace Two (2) Existing American Forces Network (AFN) Phase Array Antenna System Towers at Momote transmitter Site, Japan. 1. This project will be performed in its entirety in the country of Japan. The successful offeror must be licensed and registered to perform work in the country of Japan. 2. Solicitation issuance and closing dates are tentative. It is the offeror's responsibility to check the firm dates at block 6 & 8 of SF 1449, once the solicitation is released, to ensure submission of your offer in a timely manner. If you have any questions about the release date of a solicitation please contact the Contract Administrator or Contracting Officer listed in this announcement. POP Country: Japan POP Zip: 96328-5228 POP Address: 374th Contracting Squadron/LGCAB Unit 5228 APO AP.
Via Ben Dawson (10/8-2005)
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