India: Suspicious signals heard.

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India: Suspicious signals heard.

Postby m0lsx » Fri Nov 23, 2018 11:41 am

Teangana Today reports amateur radio operators have intercepted suspicious signals in and around Kolkata. West Bengal

Suspicious signals in coded languages in an around Kolkata for the past few weeks have been intercepted by amateur Ham radio operators, prompting authorities to deploy round-the-clock monitoring of radio signals.

The first such incident came into light a few weeks ago just ahead of Diwali, after an amateur Ham radio operator picked up suspicious radio signals and unauthorised radio communication in coded languages from areas in Sodepur in North 24 Parganas district.

Since then, such signals were picked up from Chuchura in Hoogly district and Sealdah in Kolkata at a specific time in the night. Areas where these signals were received are within 25-30 km radius of Kolkata.

Alarmed over the suspicious signals, the radio operators informed police officials, central agencies and the ministry of communication about this.

“For past few weeks especially after midnight we have been hearing such coded conversations. The whole thing is highly suspicious because whenever we tried to converse with them, there was no response. And when we asked them about their identity, there was total radio silence,” said Ambarish Nag Biswas VU2JFA, secretary of Bengal Amateur Radio Club.

“Those who were communicating on the radio frequencies alluded to Pashto accent but we couldn’t identify the language. I was first alerted by a fellow HAM radio club member who overheard such conversations,” he told PTI.

Pashto is a language widely spoken in Afghanistan.

Biswas, (VU2JFA) said after the incident came into light, they had written to the Union Ministry of Communication and Information Technology, highlighting the strange signals and the suspicious mode of coded communications.


spotted on Southgate ARC's news site.
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Re: India: Suspicious signals heard.

Postby G4RMT » Sat Nov 24, 2018 12:52 pm

You have to be a slightly stupid organisation to use widely listened to bands for covert comms! There's so much white space where spasmodic comms would be never heard!
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Re: India: Suspicious signals heard.

Postby m0lsx » Sat Nov 24, 2018 2:02 pm

G4RMT wrote:You have to be a slightly stupid organisation to use widely listened to bands for covert comms! There's so much white space where spasmodic comms would be never heard!


Several years ago some French listeners logged & reported to the authorities, some suspicious QSO's close to Paris Airport, which resulted in arrests. And it is known that terrorists do use radios, because it is harder for the authorities to monitor them, as unlike electronic traffic, with radio signals you have to have local ears on the ground within range of that signal & be listening at the right time to hear anything. Where with electronic communication systems, authorities can look for pre programmed behaviour, words or patterns 24 hours a day, 7 days a week from any where in the world using a computer to monitor thousands of messages per minute.
And using little used languages is not uncommon, look at the American WW2 "Code talkers" who they made the recent "Windtalkers" film about. To avoid being deciphered the Americans used Navajos, who then used a code to stop even Navajo speakers from understanding them. The American Navajo code was never broken, unlike the German mechanical Enigma codes.
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