Showing posts sorted by relevance for query AIR Indore. Sort by date Show all posts
Showing posts sorted by relevance for query AIR Indore. Sort by date Show all posts

Saturday, April 30, 2016

All India Radio Indore

All India Radio Indore (Akashvani Indore) in Madhya Pradesh, was logged on 29 April 2016, on the medium-wave frequency of 648 kHz. From 17.05 till 17.45 UTC (11.35 pm till 12.05 am, India time), classical Indian flute music, followed by news in English was heard. Initially I took the station to be Radio Nepal (in Dharan), but realised when the news was presented the format was consistent with the programming of All India Radio.

Reception was (SINPO) 25332 -- poor to weak signal strength, occasionally clear and audible speech, with short periods of fading (every two to three minutes) and static bursts (due to an electrical storm in my region). Subsequent days, reception remained poor to weak using a Degen DE-1102 and Sangean ATS-909 with only the internal ferrite rod antenna.

Reception report along with an audio file was emailed to AIR Indore and Spectrum Management. As with all AIR reception reports, it was followed up with a letter to Spectrum Management. QSL card confirming both AIR Indore and AIR Jabalpur was received on 2 June 2016.

Photo from Facebook page of AIR Indore
Email:
spectrum-manager@air.org.in 

Postal Address:
Spectrum Management & Synergy,
Directorate General, Room No. 204,
All India Radio,
Parliament Street,
New Delhi 110001, India 

Saturday, December 17, 2016

Year-end Radio Review


As 2016 winds down it's time to take stock of what transpired this past year, on and off the airwaves, here in South East Asia.  In what has become all to common in the last decade, long-established and familiar radio stations and radio-related organisations ceased to operate, among these being Radio Australia and the Danish Shortwave Club International (DSCI). On the bright side, broadcast providers like  Media Broadcast GmbH, Shortwave Service and WRMI  expanded their programming, allowing broadcasters like Radio Mi Amigio, Radio New Ireland and Italian Broadcasting Corporation to broaden their reach and audience. Similarly, QSLs previously impossible to acquire were finally confirmed.

All India Radio (AIR) was the major verifier in this category. Thanks to continued efforts of Spectrum Management & Synergy, the following stations were QSLed: AIR Ahmedabad (MW), AIR Chinsurah (MW), AIR Cuddapah (MW), AIR Cuttack (MW), AIR Dibrugarh (MW),  AIR Imphal (MW), AIR Indore (MW), AIR Jabalpur (MW), AIR Jeypore (SW), AIR Leh (SW), AIR Port Blair (MW), AIR Rajkot (MW), AIR Srinagar (SW), AIR Varanasi (MW) and AIR Vishakapatnam (MW). The lone hold out, to date, remains AIR Gangtok.

As mentioned above, many stations formerly heard only in Europe or the Americas expanded their broadcast coverage. Transmissions were relayed from Yerevan (Armenia) and Trincomalee (Sri Lanka). These included Radio Northern Ireland, Radio Mi Amigo and The Voice of the World Report. The exceptions were FRS Holland and Italian Broadcasting Corporation, which owing to frequency and propagation, were received -- for the FIRST TIME, here in Malaysia -- from their home countries.

Among the many new stations to enter the short-waves were clandestine operators, Free Radio stations and religious broadcasters, who from time to time, do and will confirm. Many use the services of Malagasy Global Business SA (MGLOB), Media Broadcast GmbH, Télédiffusion de France (TDF),  Spaceline Ltd. Bulgaria and SENTEC (South Africa). Of the five service providers,  Media Broadcast GmbH consistently verifies correct reception reports for the transmissions of their clients, among these being Radio Studio Otkrovenie - HCJB Global.  Of the new short-wave stations, Voice of Hope (in Zambia) and Madagascar World Voice appeared on the bands in early 2016.

Over on the medium-wave band, verifications from Indonesia, Iran, Japan, Mongolia, North Korea, Sao Tome, Taiwan  and Thailand were obtained. A few of these included: Radio Republik Indonesia Sungailiat, RRI Pekanbaru PRO-4 and Radio Republik Indonesia Semarang (Indonesia); Radio Payam - IRIB (Iran); Asahi Broadcasting Corporation - JONR (Osaka, Nippon Cultural Broadcasting - JOQR and RKB Mainichi Hoso - JOFR (Japan): Like Station 1494 (Thailand); and even a "Test Transmission" for Choibalsan 1431 for Babcock International (Mongolia). Two stations in the Philippines were received as well, but remain, as of this writing, MIA (Missing In Action). In all fairness, a good many Indonesian and Thai stations failed to reply too. After nearly a two year absence from MW, National Radio of Kampuchea returned to the airwaves and continues to be received strongly here.


On short-wave, either verifications or acknowledgements came from Radio Republik Indonesia Merauke (Papua), National Broadcasting Corporation - Radio Bougainville (Kubu, PNG), Radio Télé Candip (Bunia, DRC) Radio Puntland (Puntland Somalia), Radio Quillabamba (Peru), Seoul Radio Center Korea Telecom - Station HLG and Radio Guinée / Radio Télévision Guinéenne (Conakry, Republic of Guinea).

On the down side, the Danish Shortwave Club Internationally -- one the oldest and possibly the best radio club -- officially ceased to exist in December 2016 after 60 years, but not before a special broadcast, produced by Rhein-Main-Radio-Club, aired the "DSCI - Last AGM". This broadcast was heard worldwide via WRMI (Okeechobee), Shortwave Service (Armenia) and SLBC / Shortwave Service (Trincomalee) in early December.

It has also been widely reported the short-wave outlets of Radio Australia (Shepparton) and ABC Northern Territory are slated to close at the end of January 2017. Although, it has also been reported, an effort is afoot to save ABC stations (Alice Springs, Katherine and Tennant Creek). Should they go, the only remaining short-wave broadcaster in Australia will be Reach Beyond Australia (HCJB) in Kununurra, Western Australia. A few Australia Bureau of Meteorology stations (VMW - Wiluna, Western Australia) and VMC - Charleville, Queensland)  broadcast on short-wave as well.

In other news, while China Radio International, China National Radio and PBS outlets in China literally dominate the short-wave bands, they continue a policy of issuing no paper QSL. This went into effect late last year when CRI announced budget cuts. For a brief time, earlier this year, the exception was their Japanese service; but near the middle the year, they too ceased to issue paper QSLs. However, on a positive note, CRI English service does verify by eQSL, and occasionally will confirm for PBS outlets as well. Similarly, Radio New Zealand International verifies only by eQSL, as of late last year.

Once reliable Voice of Turkey acknowledged only half of this year's reception reports.  In previous years, TRT confirmed nearly every report within a month's time. One can assume, perhaps due to the unrest in Turkey and the region, this would account for the lapse in verification and delivery. QSLs from Bangladesh Betar, Radio Romania International and VOA seem to be equally sporadic. Some listeners may defer and say KBS World Radio, Radio Thailand, Radio Taiwan International and Voice of Vietnam are just as guilty, but, personally, I have had no great difficulty in receiving verifications from them, so long as one constantly communicates with them.

Occasionally, short-wave propagation and bands in South East Asia, are nearly absent of stations, save for Chinese, North Korean and religious broadcasters (AWR and Overcomer, especially). And, I feel it is almost pointless to continue listening to short-wave, let alone to maintain this blogsite.

This is one of the reasons I have recently gravitated towards medium-wave DXing. But this band, in South East Asia, is quite a challenge, what with the many Thai, Indonesian and Chinese stations that fill the airwaves and broadcast in their respective languages/dialects. To listen to stations outside these 'Big Three', broadcast times (often in the wee hours of the morning) and propagation almost ALWAYS dictate reception. And even then, when a station is received, it can be difficult to get a confirmation.

All in all, in spite of the ups and downs this year, it appears radio will remain a viable medium in the coming year. And this, in part, thanks to radio enthusiasts taking charge to preserve it. Let us hope they prevail. Long live radio! Happy DXing and 73.

Saturday, May 14, 2016

All India Radio Medium-Wave Log


Regular followers of South East Asia DXing will have noticed in the past few months I have  turned my attention to the medium-wave band. Of particular interest are the many ALL INDIA RADIO (AIR) stations operating across the continent. Is there a reason for listening to these stations? Aside from DXing, AIR medium-wave stations are received surprising well in the Kuala Lumpur area and, best of all, AIR  -- or, I should say the veri-signer for AIR, Spectrum Management & Synergy -- will occasionally verify these affiliates. The programming can be entertaining as well. To catch most of these AIR stations in South East Asia one has to wait for broadcasters in China, Thailand, Indonesia and Laos to end their respective transmissions, which can be anytime after 16.00 to 17.00 UTC. Most AIR stations end their transmissions at 17.40 UTC. And, transmitter output power for most of these stations is 100 kW or better. So, time and power is sufficient to at least catch their signals, not just in Asia but the Middle East and possibly Europe. To date -- and the list is growing -- the stations below have been logged.
 

RANCHI, JHARKAND 549 kHz (QSL)
All India Radio Ranchi (Akashvani Ranchi) in Jharkand was logged on 5 May 2017, from 17.00 till 17.40 UTC. Classical/Devotional music was observed around 17.20 UTC. Reception on 549 kHz (MW) rated a SINPO of 25422 -- weak but audible signal detected, free of co-frequency interference from Thailand station after 17.00 UTC, and when not fading every few minutes.


DIBRUGARH, ASSAM - 567 kHz (QSL)
All India Radio Dibrugarh (Akashvani Dibrugarh) in Assam was logged on
Classical/Devotional music, followed by station ID and closure announcement in Assamese(?) was heard from 16.30 till 17.00 UTC (10.00 pm till 10.30 pm, IST). Signal was noted the previous day, 12 May 2016, as well. Contemporary Hindi (?) music was noted, then closure message at the same time. Reception on the medium-wave frequency of 567 kHz was (SINPO) 33422 weak to fair with clear audio when not fading  (every 3 to 4 minutes), Co-channel QRM from Lao National Radio (LNR) prevented decent reception of Akashvani Dibrugarh before 16.30 UTC. Although I hasten to add, Akashvani Dibrugarh was heard as early as 15.00 UTC mixing with and under LNR.


PATNA, BIHAR - 621 kHz (QSL)
All India Radio Patna in Bihar, monitored on 20 June 2017, from 16.50 till 17.42 UTC with Hindi film music, news/sports/financial reports in English and Hindi. Reception on 621 kHz (MW) rated a SINPO of 34423 -- fair signal strength, with intermittent fading every few minutes, yet audible and clear.


INDORE, MADHYA PRADESH - 648 kHz (QSL)
All India Radio Indore (Akashvani Indore) in Madhya Pradesh, was logged on 29 April 2016, on the medium-wave frequency of 648 kHz. From 17.05 till 17.45 UTC (11.35 pm till 12.05 am, India time), classical Indian flute music, followed by news in English was heard. Initially I took the station to be Radio Nepal (in Dharan), but realised when the news was presented the format was consistent with the programming of All India Radio. Reception was (SINPO) 25332 -- poor to weak signal strength, occasionally clear and audible speech, with short periods of fading (every two to three minutes) and static bursts (due to an electrical storm in my region). Subsequent days, reception remained poor to weak using a Degen DE-1102 and Sangean ATS-909 with only the internal ferrite rod antenna.
KOLKATA, WEST BENGAL - 657 kHz  (QSL)
All India Radio Kolkata (Akashvani Kolkata), transmitting from South 24 Parganas District,  was observed with classical Indian music followed by commentary  from 18.25 till 18.55 UTC.  Reception on the medium-wave frequency of 657 kHz rated a (SINPO) of 33433 -- fair signal strength with clear audio when not fading (every 2 to 3 minutes).


PORT BLAIR, ADAMAN & NICOBAR ISLANDS - 684 kHz (QSL) All India Radio Port Blair (Akashvani Port Blair), Delanipur, Adaman & Nicobar Islands (India) was monitored during the week of 2  through 7 May 2016 on the medium-wave frequency of 684 kHz. Almost without fail, their signal was observed as early as 12.15 UTC and well up until 17.30 UTC (sign-off). While their transmitter consistently radiated a strong signal, one major problem persisted -- China Radio International in Hainan Province. CRI's 600+ kW transmitter operated on the same frequency up until around 17.00 UTC and overpowered Akashvani Port Blair's signal except during periods of fading. After 17.00 UTC, Akashvani Port Blair was strongly received without fading.



SILIGURI, WEST BENGAL - 711 kHz (QSL)
All India Radio Siliguri (Akashvani Siliguri) in West Bengal was heard
broadcasting classical Indian music followed by news in English and Hindi was observed from 17.05 till 17.44 UTC, on 4 July 2017. Reception on the medium-wave frequency of 711 kHz was (SINPO) 34323 -- poor to fair signal strength when not fading under atmospheric noise or mixing with a Thai station, every two to four minutes.


JABALPUR, MADHYA PRADESH - 801 kHz (QSL)
All India Radio Jabalpur  (Akashvani Jabalpur), Madhya Pradesh was logged on 4 May 2016. Indian music consisting of duets between female and male singers, followed by news in English and Hindi was heard from 17.05 till 17.40 UTC (10.35 pm till 11.10 am, India time). Reception on the medium-wave frequency of 801 kHz was (SINPO) 24432 -- weak to fair signal strength, clear and audible speech for approximately two minutes between fading. Periods of fading lasted every five to six minutes which prevented reception of signal. Reception was not possible before 17.00 UTC due to strong interference from Radio Republik Indonesia Semarang (in central Java). Some minor interference from a station in China was heard when their signal faded under. On previous days, reception was not much better using a Panasonic RF-B45 and Sangean ATS-909, with both relying on only the internal ferrite rod antenna.


AHMEDABAD, GUJARAT - 846 kHz (QSL)
All India Radio Ahmedabad  (Akashvani Ahmedabad) in Gujarat (India) was logged on 11 May 2016. Indian classical music of a drum ensemble, followed by news in English and Hindi was heard from 17.05 till 17.40 UTC (10.35 pm till 11.10 pm, India Standard Time). Reception on the medium-wave frequency of 846 kHz was (SINPO) 33422 or weak to fair with clear audio when not fading  (every 4 to 5 minutes), Co-channel QRM from Taiwan and Thailand stations prevented reception of Akashvani Ahmedabad before 17.00 UTC.


IMPHAL, MANIPUR - 882 kHz (QSL)
All India Radio Imphal (Akashvani Imphal), transmitting from Mayang Imphal, Manipur, was logged on 17 May 2016. A discussion, old Hindi songs and devotional/classical Indian music was monitored from 15.55 till 17.00 UTC (09.25pm till 10.30 pm, IST). Reception on 882 kHz (MW)(SINPO): 34433 -- fair to good signal strength, clear music content but not speech, fading approximately two to three minutes apart. Frequency seems to be free of co-frequency interference, at least during time of log and this quarter of the world.


CUDDAPAH, ANDHRA PRADESH - 900 kHz (QSL)
All India Radio Cuddapah (Akashvani Cuddapah), transmitting from the southeastern state of Andhra Pradesh (India), was logged on 29 November 2015. A selection of Hindi songs, moderated by male announcer, was observed from 16.25 till 17.00 UTC. Reception on the medium-wave frequency of  900 kHz was (SINPO) 34433 -- fair signal strength, clear audio,  signal faded every four to five minutes.


VISAKHAPATNAM, ANDHRA PRADESH - 927 kHz (QSL)
All India Radio Visakhapatnam (Akashvani Visakhapatnam) in Andhra Pradesh was heard on 15  April 2016. Popular music and news was monitored from 17.00 till 17.43 UTC (10.30 pm till 11.13 pm, Visakhapatnam time). Overall reception on the medium-wave frequency of 927 kHz was (SINPO) 33423. Before 17.00 UTC, signal was difficult to receive due co-frequency mixing with a station in Chanthaburi, Thailand. When this Thai station closed, AIR Visakhapatnam transmission was weak to fair depending on the duration of fading (from 8 to 10 minutes). When signal was at its peak, audio was clear.



TIRUCHIRAPALLI, TAMIL NADU 936 kHz (QSL)  
All India Radio Tiruchirappalli in Manapparai, Tiruchirappalli District, Tamil Nadu (India) with Tamil music, moderated by male announcer, was observed from 17.00 UTC onward. News in English at 17.30 UTC presented by female announcer, then sign-off at 17.35 UTC.  Reception on 936 kHz (MW) rated a SINPO of 34433 with fair to good signal, occasionally fading every few minutes.


NAJIBABAD, UTTAR PRADESH - 954 kHz (QSL)
All India Radio Najibabad (Akashvani Najibabad) in Bijnor District, Uttar Pradesh (India) was heard on 4 January 2017, between 17.15 till 17.40 UTC. Classical/devotional Indian music, followed by news in English and Hindi, then station ID just before sign-off was observed. Overall reception on the medium-wave frequency of 954 kHz rated a (SINPO) of 33423 -- fair signal, clear audio when not fading (every 3 minutes) and interference from Sathaanii Witthayu Krajaisiang Thahaan Aakaat (Thai Air Force Radio Station) in Phitsanulok Province. 


CUTTACK, ODISHA - 972 kHz (QSL) 
All India Radio Cuttack (Akashvani Cuttack) in Odisha was logged on 15 April 2016. Radio drama, devotional/traditional music and news was monitored from 16.35 till 17.35 UTC (10.05 pm till 11.05 pm, Cuttack time). Reception on medium-wave frequency of 972 kHz was  (SINPO) 33423 -- weak to fair signal, depending on duration of fading (which lasted from 8 to 10 minutes). A droning noise, possibly from transmitter, or heterodyning from a co-frequency station was observed. Before 17.00 UTC, signal mixed with Thai and Indonesian stations. When signal was at its peak, audio was clear.


RAJKOT, GUJARAT - 1071 kHz (QSL)
All India Radio Rajkot (Akashvani Rajkot) in Gujarat was logged on 16 April 2016, here in the Kuala Lumpur area. A selection of classical/devotional music and old Hindi duets were observed from 18.05 till 19.15 UTC (11.35pm till 12.45am, Rajkot time). Overall reception on the medium-wave frequency of 1071 kHz was (SINPO) 23322. Signal strength was weak but audible. QRM from unidentified co-frequency station was present when signal faded under for duration of approximately 2 to 3 minutes. 


CHINSURAH, WEST BENGAL - 1134 kHz (QSL)
All India Radio Chinsurah (Akashvani Chinsurah) in West Bengal was logged on 30 May 2016. A selection of contemporary Myanmar songs, hosted by a male announcer speaking in Burmese, followed by station ID and closure announcement was monitored from 12.45 to 13.15 UTC (07.15 to 08.45 IST). Reception on the medium-wave frequency of 1134 kHz was (SINPO) 24221 -- weak signal but audible when not fading under static bursts from a local electrical storm. Fading lasted three to four minutes before audio  peaked. Reception would quite possibly have been better had transmission occurred under grey-line.


VARANASI, UTTAR PRADESH - 1242 kHz (QSL)
All India Radio Varanasi (Akashvani Varanasi), transmitting on the medium-wave frequency of 1242 kHz from Sarnath, Uttar Pradesh (India), was received on 1 September 2016. Presumably Indian classical music, a rather lengthy flute piece, moderated occasionally by a male announcer, was observed from 17.10 till 17.30 UTC / 10.40 till 11.00 IST. Transmission closed at 17.40 UTC. Reception rated a SINPO of 23322 -- fair to weak signal with audible content when not mixing with Radio Sultanate of Oman and fading every three to four minutes under static bursts from a local thunderstorm. Prior to 17.00 UTC/10.30 IST, Akashvani Varanasi was not received due to strong co-frequency interference from Radio Republik Indonesia Bogor (Java), stations in Thailand and Vietnam, and to a lesser extent Nippon Hoso-JOLF (Tokyo) after 17.00 UTC/10.30 IST. On previous and subsequent days, owing to poor propagation, Akashvani Varanasi just barely broke through the threshold, and only then at a whispered level. This was a tough one to catch!


NAGPUR, MAHARASHTA - 1566 kHz (QSL)
All India Radio Nagpur, transmitting from Buti Bori (Nagpur) in Maharashtra, was logged in 6 July 2016, from 17.35 till 18.15 UTC. News in Hindi, followed by a selection of English language pop songs was heard during this period. Reception on the medium-wave frequency of 1566 kHz was (SINPO) 45533 -- fair to good signal strength and clear audio depending on duration of fading (which on average was approximately two minutes apart). AIR Nagpur has been monitored over the past month and based on these observations no signal has been detected before 17.00 UTC. In addition, reception seems to improve after 18.30 UTC and up until around 19.00 UTC. 


Receivers used: primarily Sangean ATS-909, followed by Panasonic RF-B45 and Tecsun S-2000. Antenna: usually the internal ferrite rod aerial, and occasionally a MW loop antenna. All receivers were rotated to the direction where signal was strongest.

Wednesday, May 4, 2016

All India Radio Jabalpur (Akashvani Jabalpur)

All India Radio Jabalpur  (Akashvani Jabalpur), Madhya Pradesh was logged on 4 May 2016. Indian music consisting of duets between female and male singers, followed by news in English and Hindi was heard from 17.05 till 17.40 UTC (11.35 pm till 12.10 am, India time).

Reception on the medium-wave frequency of 801 kHz was (SINPO) 24432 -- weak to fair signal strength, clear and audible speech for approximately two minutes between fading. Periods of fading lasted every five to six minutes which prevented reception of signal. Reception was not possible before 17.00 UTC due to strong interference from Radio Republik Indonesia Semarang (in central Java). Some minor interference from a station in China was heard when their signal faded under. On previous days, reception was not much better using a Panasonic RF-B45 and Sangean ATS-909, with both relying on only the internal ferrite rod antenna.

Jalabpur skyline
Reception report with audio files was emailed and posted on 5 May 2016 to All India Radio Jabalpur and Spectrum Management. This was followed-up with a letter to Spectrum Management. One QSL card confirmed both AIR Jabalpur and AIR Indore, which arrived in the mail on 2 June 2016.

Email:
jabalpur@air.org.in
spectrum-manager@air.org.in

Wednesday, June 1, 2016

QSL in the Mailbox


Spectrum Management & Synergy verified two medium-wave stations of All India Radio (AIR) in one QSL card, which depicts the Rock-shelter (Group III) of Bhimbetka. The verifications were for AIR Indore on (648 kHz) and AIR Jabalpur (on 801 kHz), both located in the central Indian state of Madhya Pradesh. This makes five of 11 medium-wave verifications for AIR stations. Mighty glad to have these! Thank you, Spectrum Management & Synergy and All India Radio.

Monday, February 19, 2018

All India Radio Retrospective


All India Radio was first logged and QSLed in the early 1970s when I lived in Colorado (USA). All India Radio was heard regularly on 11.620 kHz (SW), just before sunrise, as I recall. A few months after sending my first reception report to All India Radio I received a QSL card, depicting India's famed landmark, The Red Fort.

In Malaysia, a total of 47 All India Radio stations were QSLed from 2010 till 2018. Initially All India Radio confirmed a few stations, and then later, Spectrum Management & Synergy verified the majority of the stations listed below.

MEDIUM-WAVE (30 AIR stations QSLed):
Cuttack (Odisha)
Jeypore (Odisha)
Imphal (Manipur)
Ahmedabad (Gujarat)
Diburugarh (Assam)
Diphu  (Assam)
Raipur (Chhattisgarh)
Jabalpur (Madhya Pradesh)
Indore (Madhya Pradesh)
Visakhapatnam (Andhra Pradesh)
Cuddapah (Andhra Pradesh)
Vijayawada (Andhra Pradesh)
Varanasi (Uttar Pradesh)
Najibabad (Uttar Pradesh)
Ranchi (Jharkhand)
Tiruchirappalli (Tamil Nadu)
Patna (Bihar)
Chinsurah (West Bengal)
Siliguri (West Bengal)
Kolkata (West Bengal)
Suratgarh, (Rajasthan)
Jodhpur (Rajasthan)
Rajkot (Rajasthan)
Parbhani (Maharashtra)
Nagpur (Maharashtra)
Pune (Maharashtra)
Jalandhar (Punjab)
Port Blair (Adaman & Nicobar Islands)
Srinagar (Jammu and Kashmir)
Tezu (Arunachal Pradesh)

SHORT-WAVE (17 AIR stations QSLed):
Aligarh  (Uttar Pradesh)
Lucknow (Uttar Pradesh)
Bangalore (Karnataka)
Bhopal (Madhya Pradesh)
Chennai (Tamil Nadu)
Hyderabad (Telangana)
Kurseong (West Bengal)
Jaipur (Rajasthan)
Jeypore (Odisha)
Mumbai (Maharashtra)
Shillong (Meghalaya)
Thiruvananthapuram (Kerala)
Port Blair (Adaman & Nicobar Islands)
Panaji (Goa)
Srinagar (Kashmir & Jammu)
Leh (Kashmir & Jammu)
Gangtok (Sikkim)

This video contains several AIR verification cards (QSLs) from the above stations and the signature AIR interval tune, which was composed by Walter Kaufmann or Thakur Balwant Singh and which has been used since 1936.