As new season (summer) season of international radio broadcasting has begun from March 30th(last sunday of March) and will remain effective upto October 25th(last saturday of October).And from October 26th( last sunday of October) ,the winter season of international broadcasting will start and it will be effective upto March 28th(last saturday of the next year i.e.2026).There is need of changes of frequenies due to earth's ionosphere which varies due to seasonal changes.Interested persons can search the net and can find more detail information about radio wave propagation and international broadcasting matters.
Here is a few initial A25 season logs which I like to share .
RIG:Yaesu FT891 External Antenna:40/20mb Dual Bander Inverted V Dipole Centre feeded with RG58 coaxial cable
Place Of Reception:Abhayapuri(Assam)(India)
March 30th:
First log which I like to share of Wavescan,Global DX Program now produced at Radio Miami International(WRMI),Okeechobee, Miami,Florida relayed first time via Reach Beyond Australia(RBA) via Kununurra(100kW),Australia...
from March 30th...sunday
from March 30th...sunday
1400-1429utc 11870kHz S5-S7 slight QSB slightly noisy..
No interference overall reception could be termed as good.But I could not check the transmission to Japan on monday i.e.on March 31st also via RBA Kununurra on 17650kHz during 2230-2300utc.
No interference overall reception could be termed as good.But I could not check the transmission to Japan on monday i.e.on March 31st also via RBA Kununurra on 17650kHz during 2230-2300utc.
I will check on ensuing mondays where the transmission is audible here or not.
Here is the audio files links recorded Wavescan via RBA) via Kununurra around
1416utc:
and 1427utc:
Radio Japan NHK World Bengali on 11655kHz was heard with strong signal strength here on March 30th from 1500utc onwards.
Voice Of Turkiye English on 11660kHz was heard with S5-S9 signal strength (obviously QSBi.e. fading there from time to time) from 1653utc onwards(my aircheck time) .I monitored for a few minutes.Its schedule is 1630-1730utc on 11660kHz directed to India Afghanistan, Pakistan, Uzbekistan & Turkmenistan.I think transmission ends atleast 5-10 minutes earlier.
Vatican Radio South Asia 17790 & 15490kHz
1441utc 17790kHz Vatican Radio Hindi
Drama aired,noise,sometimes difficult to copy the contents,
I understood a drama was on air
The link to the audio file recorded around 1441utc ..
1449utc 15490kHz Vatican Radio Tamil
Good Signal,though slightly noisy, Vatican Radio Tamil signing on
The audio file link recorded around 1449utc:
March 31st:
BBC World Service English heard on 9510kHz(via Tashkent)/12095kHz(via Oman) during 0000-0200utc.During my random check several time periods, better reception on 12095kHz that 9510kHz.Will have to check more in more detail about other frequencies during different periods of BBC World Service English directed to South Asia.
But on 1413kHz(medium wave relay primarily via Oman) nothing of BBC in English heard during morning plus evening/night hours so far here during 0030-1600utc in several monitoring spells.
Voice Of Turkiye Urdu is now on a differnt frequency(i.e. 17580kHz ..perhaps fast time during summer ) during their usual summer time schedule of 1200-1300utc.I heard good signal strength with slight QSB(fading) on March 31st during a last three minutes of the transmission.There was Turkish music , signing off announcement followed by station music and signing off around 1254utc abruptly.As mentioned earlier,its transmission ends 5 to 10 minutes earlier.I think this is for technical reasons perhaps.
A general A25 update:
Station KNLS English New Life Station
Via Madagascar World Voice(MWV),Madagascar
Via Madagascar World Voice(MWV),Madagascar
0200-0300utc & 0300-0400utc* on 13760kHz
*Transmission ends a few minutes earlier than mentioned time and perhaps due to antenna swtich or rotation etc or other technical reasons.
More observations//monitoring reports etc soon.
73
Gautam Kumar Sharma(GK)(VU3WTI)
(Abhayapuri)(Assam)(India)
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