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Vintage Radio (domestic) Domestic vintage radio (wireless) receivers only. |
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12th Sep 2018, 9:36 am | #1 |
Rest in Peace
Join Date: Mar 2011
Location: Basildon, Essex, UK.
Posts: 4,100
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Transmitter stations in 1935
I thought this may be of interest to some, I came across it in the user manual for a KB 426 radio.
Added a PDF of the page below; Mike Last edited by crackle; 12th Sep 2018 at 9:43 am. |
15th Sep 2018, 10:58 pm | #2 |
Tetrode
Join Date: Aug 2018
Location: Glasgow, Scotland, UK.
Posts: 55
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Re: Transmitter stations in 1935
Interesting, but why are the wavelengths expressed in decimals? I thought wavelength was the main description in the old days. Or maybe that was just a British convention? When we used wavelengths (eg 247m, 330m etc) were these exact or approximations for frequencies?
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16th Sep 2018, 9:28 am | #3 |
Rest in Peace
Join Date: Mar 2006
Location: N.W. Oxfordshire(Chipping Norton)
Posts: 7,306
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Re: Transmitter stations in 1935
They were approximate equivalents to the actual frequencies, e.g., using pre-1978 allocations, 1214kHz = 247 Metres, but using the calculation 300000/Wavelength 247 = 1214.57kHZ.
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18th Sep 2018, 5:49 pm | #4 |
Tetrode
Join Date: Aug 2018
Location: Glasgow, Scotland, UK.
Posts: 55
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Re: Transmitter stations in 1935
Thanks. I didn't appreciate frequency was the 'official' measure in these days. Still, it seems unnecessary to include a decimal point when the dial on the set was nowhere near as accurate.
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