TODAY -

Ode to Radio Telegraphy of Good Old Days

Kamal Baruah *

 Radio Telegraphy
Radio Telegraphy



My HF Receiver suddenly went on clear voice "PAF ONE CRASH-LANDED" I was frantic with worry and pressed the record button instantly. With President on board, it was mock drill at Keti Bandar near Karachi.

The passing vehicles are the only noise that disturbs the tranquillity of rural India. Those were the time when the only entertainment was the ubiquitous Transistor. We were diehard devotees to three band radio. We walked in the night to get the signal and surfing on a tiny knob for navigating national/international radio stations.

Those were a real feast to our ears where we spent our childhood in village. Being an air warrior, we felt passionately in love with the erstwhile radio, while we posted to rough terrain that still haunted me. Today a flash of memory passed over the time. Life was beautiful and lonely there.

Apart from listening songs, sometimes we tuned to short hum after hum after hum etc. at shortwave. Also we observed a continuous relay sound nearby airport. We failed to understand - what it actually was? Encyclopaedias were beyond the reach. I wonder what if Google was never invented. My career with IAF had bought me to come across those mysterious sounds. It is VHF Omni-directional broadcast of Aerodrome identification. They are weird Morse Codes heard over Short Wave.

At age 18, I was learning ABC. It is like saying the fall of Drona: "Aswathama Hatha, Iti Narova KunjaRova". But they are actually a Morse Code used in WT - Wireless Telegraphy. After 12th, we 211 trainees were undergoing Radio Communication at CTI Jalahalli West Bangalore in 1988.

Morse code is a character encoding scheme used in telecommunication that encodes text characters as standardized sequences of two different signal durations called dots and dashes. Learning Morse code is like learning any language. It is like learning a bicycle. Once you learned you will not forget of life time. The incidents happened in a flicker but those memories are forever.

Morse is named for Samuel FB Morse, an inventor of the telegraph in 1836. It is widely used from defence to civil aviation and international communication for ships in distress. Morse officially stopped being used on the world's oceans from 1999. Now it is replaced by Morse Code Decoder/Sender using ham radio software that decodes received CW (Continuous Wave) audio.

To ensure safety of flight, modern navigation receivers automatically translate the code into displayed letters facilitating the identification process. SOS (Save Our Souls or Save Our Ship) is most popularly associated with emergency Distress Signal worldwide.

The significance of Morse code was not realised till I saw Titanic in 1997. The Titanic sank on Apr 14, 1912 and it sent out a Mayday. A Distress Signal was broadcasted saying CQD CQD SOS SOS, CQD DE MGY MGY (All Hell Our Distress, All Hell Our Distress! Save Our Souls Save Our Souls! All Hell Our Distress! From Titanic Titanic). However wireless controller was off duty and as a result did not receive the Distress Signal. The tragedy over 1600 lives was lost that night.

It was harrowing task to interpret those signals. For learning Morse it is recommended that one does not try to remember dots and dashes, but remember the sounds instead. Besides Letter, there are Punctuation Mark, Prosign, Abbreviation and Q Code. Our Instructor Warrant Officer Taneja used to play music with dots and dashes. The ringing of a school bell tells a student to follow. The long ringing of the bell was remembered as delight, so does with AR (dit-dah-dit-dah-dit - means the end of transmission) at Lunch that provided some respite from the burgeoning 20 speed of Morse WPM.

WT had been one of my weakest points. I had somehow qualified. But my Morse journey in WT circuit continued till my VRS. In Western Command WT channels of Leh, Kargil, Thoise, and Awantipur of Northern Kashmir were very weak, noisy and fading signals. Unlike voice, Morse required very strenuous efforts to receive. There was no OFC network at those snow covered region.

Field Telephones were absurd what we hear when lines cross (one way telephone). The other end operators were struggling to withstand with the cold desert. Later on we come across Tele-Printer, Tape-Relay, Trans-Receiver, DMSS (Data Management System Simulator) and Shortwave HF Receiver. But WT is the only answer to receive/send cryptographic message. In Radio Telegraphy, wireless carries a vital role as it could easily be connected to any long range communication as it is more reliable than the long range voice circuits.

Upon receiving Morse I was vaguely remembered the cock and bull story as provoked by i/c at WACOM Centre New Delhi. Funnily enough, I wasn't disheartened. Further at the Meteorology Channel, I came across forecast, temp, real-feel, wind, precipitation, rain, snow, ice, sky, UV index, cloud cover, humidity, dew point, visibility, temperature, sunrise/sunset, moonrise/moonset etc.

We learned the know-how to predict weather it's amazing! Those were such monotonous hourly report at 24X7 from difficult channels of low signal strength and intelligibility for ATC. We experienced those faint noises down at night, drifting off to sleep and kept awakening.

It was harsh winter during January 1990, my promotional examination to Leading Aircraftsmen at Chandigarh. My fingers had gone almost frozen. I was dispirited by the uncomfortable conditions for WT test on the first day. Within an hour, we half of them were given RTU (Return to Unit). We called the cut off 70% as other Civil Services at IAF. It was very disappointing indeed at back to base. There was something amiss at the second attempt.

I was so close and yet so far. I lost hope but did not give up. My friend Ajanta and Paresh were affable to me and sent me a light-hearted note. "Examination may come and go what stays behind is the journey of that joie-de-vivre during Bhogali Bihu". It was full of trivial but amusing chatters. My prayer to God had finally been answered. And we (three) flew together by Gajraj, the jumbo IL-76.

It sounded like the French word m'aider (MAYDAY) which means 'help me.' It is an international Distress Signal voice procedure broadcasted internationally in radio communication by aviators and mariners. 121.5 Or 243 MHz channels are known as Distress/Safety calling frequencies. Now it uses digital 406 MHz signals. The Radio-Telephone Distress Call is the Distress Signal MAYDAY (spoken three times) and its call sign (spoken once).

My HF Receiver at Siot Dett (Indo-Pak Gujarat border) suddenly went on clear voice "PAF ONE (Pakistan Air Force One - call sign of Pakistan President aircraft) CRASH-LANDED" I was frantic with worry and pressed the Record Button instantly. With President on board, it was mock drill at Keti Bandar near Karachi.

My learning to WT has passed three decades. But that NATO Communication Instructions of Radio Telegraph Procedure ACP 124(B) still haunted me. As it had always been an integral part for Radio Technician. Gone are those days of Radio Telegraphy. Most of our entry mate were taking discharge from service and are settling different parts of India. There was no contact among us until social media finally bring back together our friendship.

Recently we reunited through a WhatsApp group Purely RT-152 by initiative of Trivedi. And life is moving back to Jalahali days after 30 long years. Discovering our past can be fun. It's easy swiping across the touch screen. Today I nostalgically recall those varied path of ode to radio telegraphy of good old days on the eve of New Year.


* Kamal Baruah, a resident of Guwahati, wrote this article for e-pao.net
The writer can be contacted at kamal(DOT)baruah(AT)yahoo(DOT)com
This article was webcasted on December 30, 2018.



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