New AIR SW DRM test schedule via Bengaluru

New AIR SW DRM test schedule via Bengaluru wef 31st July'20 : 

1000-1010 UTC 15410 kHz to NE Asia
1145-1155 UTC 15030 kHz to NE Asia 
1745-1755 UTC 7550 kHz to Europe

Reception reports to : drmofallindiaradio@gmail.com

(Via Jose Jacob)  

All India Radio extends transmission hours in Pure DRM mode

With effect from 27th Jan, 2020, All India Radio has increased its transmission hours for MW DRM ( Digital Radio Mondiale) transmitters and will transmit in pure DRM mode as per below timings :

0900-1100 IST ( 0330-0530 UTC)

1500-1800 IST (0930-1230 UTC)

Places where there are two DRM transmitters, one DRM transmitter will operate in pure DRM mode.

Please submit your reception reports to : spectrum-manager@air.org.in

All India Radio (AIR), the public service broadcaster in India, has adopted the international DRM (Digital Radio Mondiale) standard for the digital terrestrial radio transmissions in the MW and SW bands. DRM allows for multiple FM-like radio services plus associated data such as multi-lingual news articles to be carried in place of or as an extension to the former analogue radio services, while maintaining the large-area service coverage of the AM bands.

35 MW transmitters of AIR, of power ranging from 20 kW to 1000 kW, continue to operate in DRM – 2 of these in pure DRM and 33 in simulcast. 25 of these are working in pure DRM daily for one hour. 2 SW transmitters are also carrying services on DRM.Two more transmitters, 100 kW each, are under trial in Delhi and these are expected to be operational soon. 

AIR DRM TEST on 11620kHz - Extended for 5th July

All India Radio, Kingsway, Delhi #DRM test extended for a day, on 5th July at 0400-0600 UTC (0930-1130 IST) 11620 kHz to eastern India. 

Reception reports to : spectrum-manager@air.org.in

(Via Alok Dasgupta)

All India Radio, Delhi DRM test using the 2nd new 100 kW transmitter

All India Radio is going to test DRM broadcast with FM Gold program from their 2nd new 100 kW transmitter at Kingsway, New Delhi at 0400-0600 UTC (0930-1130 IST) on 7505 kHz towards eastern India between 2nd July and 4th July (3 days).

(Alok Dasgupta,Kolkata)

AIR Demonstrates Full Capabilities of Digital Radio Mondiale (DRM)

New Delhi, India April 25, 2017

As part of Phase II of the DRM introduction in the country, AIR is demonstrating the full complement of services which are part of the DRM standard. Recently AIR was congratulated by Hon'ble Union Minister for Information and Broadcasting Shri Venkaiah Naidu for having successfully completed phase-I of the national DRM digital radio roll-out – the installation of 37 DRM transmitters, now operational, throughout the country.

AIR is in the process of launching phase-II of the DRM project by offering full features/services from these DRM transmitters and further improving service quality. With the finalization of phase-II, the full featured DRM services will finally be available to the audience and a public information campaign will be initiated to inform the Indian citizens of the completely new and future oriented DRM radio platform and its many benefits.

The first steps of phase-II of the digital radio roll-out project are already visible and audible to the audience in Delhi. The DRM transmissions from Delhi/Nangli now provide excellent audio quality based on DRM's xHE-AAC audio codec. It also includes DRM text messages and Journaline. The advanced text service Journaline provides detailed news of various topics to listeners – accessible on their radio set screen – free of charge, without requiring Internet access. All this is available in the simulcast configuration and with the most robust DRM transmission configuration, enabling increased in-door coverage.

21 DRM transmitters are now operating in pure DRM for one hour everyday, in addition to simulcast operation. Excellent feedback is being received by AIR about of the reception quality of DRM signals. AIR is planning to enhance the DRM service from Chennai, Pune and Bangalore very shortly.

(All India Radio Press Release)

AIR Kolkata testing new transmitter

All India Radio, Kolkata is testing new 100 kW Nautel NXP-100 transmitter on 1008 kHz AM and 1018 kHz DRM. Transmitter will be commissioned before 31st March, 2016. SBS ( Special Bangla Service) programs expected by end of Feb'16.

8th Feb 2016 - First noticed by C.K.Raman, Delhi at 1545-1600 UTC in DRM mode (only station label, no audio).

10th Feb 2016 -

Dr.Supratik Sanatani from Kolkata briefly heard a very strong pure tone audio on 1008 kHz AM at 0040 - 0050 UTC. 

Test tones again noted by several listeners at 1330 UTC on 1008 kHz AM.

Running commentary of SAF games started at 1504 hrs still continuing beyond 1520 hrs (No news in Hindi at 1515) - Alok Dasgupta, Kolkata

Test tone at 1330 UTC, video by Debanjan Chakraborty, Kolkata

https://youtu.be/SelpNX8Y7Bs

Hockey match commentary, video by Debanjan Chakraborty, Kolkata

https://youtu.be/9z3EH0gEXkY

Running commentary of India - Srilanka Hockey match continues at 1530 UTC with good signal here at Agartala - Pradip Chandra Kundu, Agartala, Tripura

Test in DRM mode noticed by Debanjan Chakraborty, Kolkata at 1830 UTC, txer went off air at around 1910 UTC.

https://youtu.be/SgXklpz3AfA

Related :

High Power DRM-MW-AM

http://www.nautel.com/solutions/digital-radio/high-power-drm-mw-am-transmitters-air/

AIR Bengaluru testing in simulcast mode

AIR Bengaluru is testing in simulcast mode, 612 kHz analog + 621 kHz DRM

Schedule :

5.55 am - 3.00 pm IST

5.30 pm - 11.10 pm IST

Reports to : spectrum-manager@air.org.in

AIR DRM Test Transmission with multiple programmes from SPT Bangalore

All India Radio will be conducting trial transmission in DRM mode with multiple programmes from SPT Bangalore as per below :

Date : 20th April to 30th April, 2015 (Extended after 30th April 2015 until further notice)

1745 - 2230 UTC (2315-0400 IST) - 7550 kHz to UK & West Europe

Programme 1 = GOSIV/HINDI/GOS-V

Programme 2 = Vividh Bharati

Consequently GOS V Service from 2045-2230 UTC (0215 -0400 IST) on 11620 kHz to Aus/NZ will be shifted from DRM mode to analog mode.

Please send your reception reports to spectrum-manager@air.org.in

A special QSL card is available for this DRM test transmission.

(Alokesh Gupta)

AIR Chinsurah testing in simulcast mode

All India Radio, Chinsurah (near Kolkata) is testing its new 1000 kW DRM compatible Thomson transmitter. Test txn is simulcast mode carrying FM Rainbow program noted in 594 kHz AM & 604 kHz DRM around 1030 IST (0500 UTC).

(Sudipta Ghose, Kolkata)

Nautel's VS1 puts DRM+ On-Air in India

A Nautel VS1 low power FM transmitter was the transmission backbone of DRM+ trial measurements in India that "have thrown up very satisfactory results," according to the DRM Consortium. The tests conducted during the week of May 23rd, 2011 were organized jointly by All India Radio (AIR) and the DRM (Digital Radio Mondiale) Consortium, and demonstrated the viability of DRM digital radio in the FM band for the Indian market.

http://www.nautel.com/customer_stories/drm_india/

AIR VBS on 6090 kHz - testing on simulcast mode ?

AIR VBS noted on 6090 kHz since check in on 9th April, 0900- 1200 UTC,  probably testing in 'simulcast' mode, // to AIR VBS DRM on 6100. During Dec 2009 tests were noted on AM 6090 150 kW + DRM 6100 kHz 50 kW.

Fraunhofer announces low bitrate DRM video

German research institute Fraunhofer has developed technology that allows small-scale, low bitrate video services to be carried in Digital Radio Mondiale (DRM) signals. Diveemo is a joint venture between Fraunhofer, Thomson Broadcast & Multimedia and NewStar Electronics and will be launched at IBC 2010 in September, writes Kevin Hilton.

Full story at :
http://www.prosoundnewseurope.com/website-content/full/fraunhofer-announces-low-bitrate-drm-video

Südwestrundfunk re-starts DRM transmission

http://www.drm.org/index.php?p=news_item&uid=207

KRTPC on 6050 kHz ?

KRTPC on 6050 kHz ?
http://www.drmrx.org/forum/showthread.php?t=2240

More info on KRTPC :
http://www.drmrx.org/forum/showthread.php?t=2067

AIR multichannel DRM test for BES Expo 2010

All India Radio DRM test transmission for BES Expo 2010. 0330-1200 UTC for 3 days.... 29-31 Jan 2010, multichannel DRM broadcast. 1st channel carrying VBS & 2nd channel news/commentary on single freq 6100 kHz. Another innovation from AIR Research & Development.

Successful DRM General Assembly meetings in Erlangen

The General Assembly of the DRM Consortium held last week in Erlangen,Germany was attended by a record number of members and guests from all over the world including the technical directors of the ABU and EBU who expressed their support for the work of the consortium. The highlights of the meeting include discussions and decisions on the proposed roll out of DRM in countries like India, Russia, China and Brazil, the launch of a new 'colour-screen' DRM receiver and the unveiling of a brand- new DRM+ market study.

Group photo & pdf's of presentation posted at :
http://www.drm.org/news/detail/news/successful-drm-general-assembly-meetings-in-erlangen/

(Sourec : www.drm.org)

AIR DRM Test - 2nd Oct

Kept on trying with longwire which overloaded the RP2100, at around 1120 UTC switched to internal antenna & was able to decode.
Here are couple of screenshots :