Friday, March 29, 2024

Whatever happened to WIPE?


@buzzkobb asked over on Twitter "...when will WIPE go on the air." Recent photos show two SteppIR beams on a tower at the Armstrong site in Alpine, New Jersey. Turms Tech, part of Turms Holdings, a subsidiary of Emcor Securities of New York has a construction permit and claims to have built a 10 kW DRM station. Is this it? Not sure that those antennas can handle 10kW so I'm certainly curious! Previously discussed over on SWLing Post.

Wednesday, February 7, 2024

Republic of Sakha DRM plans

(Machine translation of article in French)

"The Republic of Sakha (Yakutia) will reopen the legendary Radio Center No. 1 so that people in all corners of the vast Yakutia can benefit from reliable, high-quality radio communications.

This was stated by Viktor Sergeev, Director General of ArcticTelecom, at the end of his meeting with Vladimir Kalchenko, the Plenipotentiary Representative of the Director General of FSUE RTRS in the Siberian Federal District on 26 January.

Three years ago, the State Unitary Enterprise "Technical Centre for Television and Radio Broadcasting" of the Republic of Sakha (Yakutia) was transformed into a joint stock company "ArcticTelecom". The new company's mission was to bring the small republic into the digital air. In addition to the development of fibre optics and broadband, the programme also included working on the design and implementation of a high-power digital radio broadcasting network to the DRM standard with 100% coverage of the entire territory of the Sakha Republic.

The issue had been under consideration since 2020, following a report on "the prospects for the development of powerful digital broadcasting in the Arctic area of Yakutia" that was released at the 10th International Forum "The Arctic: Present and Future".

The centre had not been dismantled and the general manager said he visited the site with the Deputy Minister of Innovation and presented plans for the restoration of the facility. Since last year, a number of scientific studies have been carried out, including measuring the capabilities of the transmitter's antenna systems. The results obtained are encouraging and that they had the support of RTRS colleagues on technical issues. He did not provide any other technical information.

The former Radio Center No. 1 is located in Syrdakh, near Tulagino and the capital Yakutsk (62°14'20"N 129°48'54"). It was built in 1966.

The center broadcast on the long waves: 171 kHz 150 kW Radio Russia.

There were 5 mediumwave transmitters (549 kHz, 50 kW, Radio Mayak - 621 kHz, 25 kW, Radio 1 - 864 kHz, 25 kW Radio Sakha - 1449 kHz, 5 kW Radio Lena and 1584 kHz, 1 kW Yunost).

There were 6 shortwave transmitters with outputs of 2 x 5 kW, 1 x 100 kW and 2 x 250 kW."

Source: Radio Magazine, Facebook Source: (no mention of DRM)

Wednesday, December 20, 2023

Merry Christmas and Happy New Year to all! wishes you all the best for Christmas and for the New Year. Let's wish for new receivers and additional DRM broadcasts worldwide!

Sunday, November 26, 2023

Mystery Asian DRM signal on 927 kHz

UPDATE 202301127: @fractional_n posts - "Probably North Korea.

The North Korean station at 6140kHz also had an ID=64."

From @fractional_n (located near Tokyo) on Twitter:

(Machine translated from Japanese) "From last night's medium wave record

I discovered that DRM waves are being emitted at 927kHz!

Although NHK Kofu Daiichi is strong, the SNR increases to a maximum of 8 dB. ID=64 and no station name label is displayed. However, the contents of the data cannot be demodulated. It seems that the data format cannot be decoded by Dream.

It is speculated that it probably originates from China or North Korea."

Any ideas?

Monday, November 13, 2023

CNR-1 China DRM Test


CNR-1 DRM test 
(NOTE: Broadcasts are reportedly in 11.64kbps UEP (21.6%) aac Mono)

Beijing 30kW 0deg ID:3ED
6030 2025-1805 (Tue 0600-0900 off)
13825 0100-0900 

Dongfang 30kW 16deg ID:3ED
17770 0100-0900 

Kunming 30kW 32deg ID:2
15180 0100-0400 0800-1100
17800 0400-0800

Qiqihar 30kW 225deg ID:1
13850 0000-0400
11990 0400-0900 
13710 0900-1200

Urumqi 30kW 98deg ID:3EC
9655 2200-0100
17830 0100-0800
9655 0800-1200

(Dongfang 30kW 41deg 11695kHz is registered but has not been used.)

Translated Info courtesy of Takahito Akabayashi (from WOR list)