Technical

Netherlands

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Radio Seabreeze
I just received the message that due to regular maintenance work the Radio Seabreeze medium wave transmitter in Laren (1098 kHz / 272 meters) will be temporarily out of service tomorrow morning (03.01.2025).
The transmitter in Grou (1395 kHz / 215 meters) is not affected.

Reiner Schneider to A-DX iog (2025-01-02)

Ireland

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A word of apology to all Radio North listeners, unfortunately due to technical difficulties we are experiencing reduced power to our signal on 846mw and also problems with our online streaming services.
We are currently trying to have these problems rectified and hope to restore our programming to full power soon.
We thank you all for your patience during these works.
https://www.facebook.com/people/Radio-North/61550758123717

Steve Whitt to mwcircle iog (2024-10-27)

Armenia and Tajikistan

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About superlong Zarya MW transmitting antennas, Armenia and Tajikistan.
In our work at both Gavar and Orzu we inquired and the local folks had essentially no technical information on the Zarya antennas.  They were set up and tuned by folks (from Moscow?) for specific frequencies and that’s that.  I can say that from my notes it is clear that retuning them would require moving a lot of shorted transmission line sections used for phase and amplitude control.  And we have notes from a talk given to IBB personnel by a Russian engineer which state that the gain (presumably of the long version) is “40” which (if that is voltage) would be ~32 dB. I also have horizontal and vertical gain patterns for the 8 lambda and 10 lambda versions taken by a colleague from photographing a document he was shown at Orzu, but that is the extent of my actual technical data.  The drawings are so small that measuring them with a polar planimeter to obtain the gain would be subject to ambiguity.

Ben Dawson, OR, Hatfield-Dawson Consulting Engineers to WOR iog (2024-10-10)

Pakistan

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More than two months after a 1 kilowatt (kW) frequency modulation (FM) transmitter at Radio Pakistan Larkana went off-air due to faults, another 100kW medium wave transmitter also went out of order and stopped transmission nine days ago.
Sources at the Pakistan Broadcasting Corporation (PBC) disclosed on Monday that the 1kW transmitter developed fault on July 15 and was subsequently sent to PBC headquarters for maintenance and repairs.
The PBC headquarters was insisting on ensuring uninterrupted power source to keep the transmitter working properly and efficiently as fluctuations and low voltage was causing harm to it, sources said.
Officials concerned at the headquarters informed the officials at Larkana radio station that the fault had been successfully removed, the transmitter was working perfectly now and it had been conveyed to the Larkana managers that it would be sent back soon. But according to the sources, it was still lying at the headquarters after the repairs. On the other hand, listeners had been urging resumption of FM transmission since the development of the fault.
Meanwhile, the 100kW medium wave transmitter developed faults around Sept 28 and 29 and subsequently its transmissions also went off-air, said the sources in the radio station.
The faulty medium wave transmitter, installed on Oct 16, 2017, had been dispatched to the official technicians in Karachi for repairs, said the sources. Already the transmitter was working at hardly 15 per cent of its capacity due to minor faults, said the sources.
As both the transmitters of Larkana Radio Station were off-air, the radio transmissions currently were available only on Facebook streaming, they said.
They said that the officials were in touch with Sepco for obtaining an express feeder line of electricity so that likelihood of faults in both the transmitters could be avoided in future.
The listeners are frequently calling officials at the radio station to know about the reasons behind suspension in transmission and urging resumption of broadcasts.
Published in Dawn, https://www.dawn.com/news/1863896/another-radio-pakistan-transmitter-in-larkana-stops-functioning October 9th, 2024.

Ydun Ritz (2024-10-09)

Denmark

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After some antenna adjustment World Music Radio – WMR – is back again on 927 kHz with increased power 400 Watt instead of 250 Watt earlier.

World Music Radio FB group (2024-05-25)