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Aircraft radio on Long Wave
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Aircraft radio on Long Wave
Our family's first broadcast receiver was a Pye. It was a pre-war model but still working (albeit with some services) in the early 1950s. It covered MW and LW and at the bottom of the LW, below 'Droitwich' and 'Luxembourg', the tuning dial had a part marked 'Aircraft'. I listened long and hard for hours on end but never heard a thing apart from pulses that I suppose was Morse sent by a tape.
So did aircraft really use this section of the LW and, if so, would this have been RT or WT? Does anyone remember this and did anyone ever hear anything? W |
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#3
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Shannon air radio used to make voice broadcasts down that end.
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#4
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The Wireless It’s my Dad’s birthday today and he would be a hundred and ten, but he didn't make it past sixty-five. He moved slow at the end, did his pools, read John Bull, shushed us - then blunt ship-builder’s fingers tuned with artilleryman’s concentration through the ether for Luxembourg. He had a wire outside to get Long Wave - it ran up the wall with the roses. Inside, behind the Palladian front, valves strained for the sounds of Athlone Paris, Dortmund and Hilversum, under dust-felted overcoat shoulders - hunched things, like him and his mates when grass grew in the yards. |
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DAN would be heard in the background of the 6 o'clock news on the Home Service.
Years later I found that the IF was DAN's working frequency. |
#6
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John T |
#7
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As I remember it was 444 Kc/s.
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#8
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Norddeich/DAN 474 Kcs Kiel/DAO 470 kcs and in the 50's Elbe-Weser/DAC but don't remember the frequency.
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#9
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I seem to remember, as a youngster. tuning in the radio to get info, re the arrival of the ferry 'RMS Claymore'. You could hear Barra head lighthouse replying and repeating the info. This freq was next to radio Lux. Our old 'Skylord' couldn't tune into the shipping freqs. I presume the same would be for air.
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#10
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https://en.wikipedia.org/wiki/Luxemb...93Gorky_effect |
#11
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My lecturer, Mr Andrew Bogie of Leith Nautical College, said that Luxemburg effect only appeared when radio receivers started using Intermediate frequencies in their tuning and amplification circuits. He said it did not happen with TRF equipment. This subject has been at the centre of many an argument over years. Regards KR |
#12
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TRF's ---- Marconi A-Lert ----- as much use as a chocolate fire guard !
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I heard that during the war radio silence involved also switching off heterodyning receivers as the LO could be detected at distance.
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Mind you, this same gent also explained, how zinc buckets, lots of urine and bayonets could make a usable battery. I don't know if this was through personal experience in the army, in the desert. |
#15
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Exactly!
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Last edited by duncs; 7th February 2019 at 00:04.. Reason: forgot logbook |
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Sam class Liberties MF/LF stand-by receiver was TRF powered by the old fashioned 100V HT battery 9V grid bias and LT from ship's emerg battery and the most sensitiv MF/LF receivers I sailed with.
#11 ..Andrew Bogie LNC in my time radar instructor was an absolute "Mekon" on radio theory but did he get it right on his Superhet/TRF Luxembourg effect answer. |
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Fred Boettcher also talked about the Effect and that it was only experienced with superhet receivers. I attended LNC late 1960 - 1963, listened to Luxemburg on my Perdio transistor radio (superhet) however I never heard the said Lux effect. All history nowadays. 73 de KR |
#19
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208 metres Radio Luxemburg was notorious for its QSB that always seemed to coincide when they reached number one on the late Sunday Top Twenty but am sure this had nothing to do with the "effect."
All water under the bridge especially now with internet radio TV et al. |
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In. the '40's and early '50's, long wave was certainly used for aircraft communications. This used morse, with the calling and distress frequency being 333KHz. See https://www.flightglobal.com/FlightP...20-%201088.PDF
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Best regards, Duncan, ex Dwarka |
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![]() 73s |
#25
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I worked with a guy who had previously been employed at a ground station communicating with aircraft, presumably with NATCS. Apparently he sat in a cubicle with a loudspeaker, headphones and a morse key. Receiver controlled by another department...
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