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Analogue systems
Very old dial tuning analogue receivers - any value?
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<blockquote data-quote="Rob Wheeler" data-source="post: 23135" data-attributes="member: 176250"><p>Thanks for the info guys. I didn't quite understand all the info, but from memory, the Rockdale unit didn't cover all the lower pre-Astra 1D extended signals, but I think the Connexions one did at least some of them without modification. The dial on the Connexions unit goes very high. The top 1/4 to 1/3 of the dial had no channels, so I guess these were very high frequencies. In fact I recall I once recorded some weird scrambled audio, like a police radio off of the very top end of the dial. Probably just some RF I guess. Come to think of it, I do live not far from an army base so it could have been something from there. </p><p></p><p>Both of these units have serial RS252 ports on them. What were they used for? The only thing I could thing of was that they may have been designed to feed very a few bits of vertical blank information to some early external decoder, but then I decided that was a stupid idea.</p><p></p><p>Thanks again for your help!</p></blockquote><p></p>
[QUOTE="Rob Wheeler, post: 23135, member: 176250"] Thanks for the info guys. I didn't quite understand all the info, but from memory, the Rockdale unit didn't cover all the lower pre-Astra 1D extended signals, but I think the Connexions one did at least some of them without modification. The dial on the Connexions unit goes very high. The top 1/4 to 1/3 of the dial had no channels, so I guess these were very high frequencies. In fact I recall I once recorded some weird scrambled audio, like a police radio off of the very top end of the dial. Probably just some RF I guess. Come to think of it, I do live not far from an army base so it could have been something from there. Both of these units have serial RS252 ports on them. What were they used for? The only thing I could thing of was that they may have been designed to feed very a few bits of vertical blank information to some early external decoder, but then I decided that was a stupid idea. Thanks again for your help! [/QUOTE]
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Very old dial tuning analogue receivers - any value?
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