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Vintage Amateur and Military Radio Amateur/military receivers and transmitters, morse, and any other related vintage comms equipment. |
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17th Oct 2018, 6:42 pm | #1 |
Nonode
Join Date: Nov 2015
Location: Welwyn Garden City, Hertfordshire, UK.
Posts: 2,015
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Pye Transport
There are those here that will recognise this title.
Neither Amateur nor Military but somewhere between the two. It was a network that was very useful in it's day but I find very little on record. Any contributions? I won't add anything yet in case this is not the right place. |
17th Oct 2018, 8:50 pm | #2 |
Dekatron
Join Date: Apr 2012
Location: Wiltshire, UK.
Posts: 14,005
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Re: Pye Transport
I'm only familiar with the low/high-band frequencies which in the 70s and 80s Pye had licensed for use on their own operations and demonstrations. At least two of these were AM VHF-airband [Zebra One/Two and Zebra Ground are callsigns that come to mind]
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17th Oct 2018, 8:56 pm | #3 |
Nonode
Join Date: Jun 2010
Location: Spalding, Peterborough, Cambridgeshire, UK.
Posts: 2,859
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Re: Pye Transport
72.35Mhz mobile TX. 85.85Mhz base TX. Usually set to talkthrough out of office hours. My callsign was "Pye Notts Howe". 1977 to my deliberate "redundancy" in March 1990.
Commonly known as "Transport Scheme". Rob
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Apprehension creeping like a tube train up your spine - Cymbaline. Film More soundtrack - Pink Floyd |
17th Oct 2018, 9:16 pm | #4 |
Nonode
Join Date: Nov 2015
Location: Welwyn Garden City, Hertfordshire, UK.
Posts: 2,015
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Re: Pye Transport
I didn't know about the airband stuff - very interesting.
Rob has explained a pile of crystals I still have for all sorts of sets. I think I was Pye Project 56 - Systems Installation Dept from Cambridge. It could turn out well or not so well when you turned up on far away schemes... |
17th Oct 2018, 10:26 pm | #5 |
Dekatron
Join Date: Apr 2012
Location: Wiltshire, UK.
Posts: 14,005
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Re: Pye Transport
A list of legacy Pye related frequencies are listed here: http://irishradio.tripod.com/ni.htm
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18th Oct 2018, 5:26 pm | #6 |
Nonode
Join Date: Nov 2015
Location: Welwyn Garden City, Hertfordshire, UK.
Posts: 2,015
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Re: Pye Transport
Ah yes - lists like that probably meant trouble once upon a time but not any more I suppose.
It was the 72.35 MHz Mobile TX and 82.85 MHz Base TX that I was talking about here in the main. There were the demonstration channels too but I think these could be used short term by any of the big companies. (I never knew the exact rules on them? - help!) I know I put a survey transmitter on demo frequencies at Hannington and went off measuring for the day but at some point the Tx went off. When I came back to site (long drive - good site), to investigate, the TX crystal was left on top of the gear with a note - please don't do this. I still wonder about that. Who was it? Last edited by Jon_G4MDC; 18th Oct 2018 at 5:33 pm. |
18th Oct 2018, 8:54 pm | #7 |
Nonode
Join Date: Jun 2010
Location: Spalding, Peterborough, Cambridgeshire, UK.
Posts: 2,859
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Re: Pye Transport
Jon. Typo? It is 85.85Mhz.
Low band had splits (mobile TX/Rx) of 13.5Mhz 72/85 ish and 10Mhz 77/87 Mhz ish. Simplex 86Mhz ish. Rob
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Apprehension creeping like a tube train up your spine - Cymbaline. Film More soundtrack - Pink Floyd |
19th Oct 2018, 6:17 pm | #8 |
Nonode
Join Date: Nov 2015
Location: Welwyn Garden City, Hertfordshire, UK.
Posts: 2,015
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Re: Pye Transport
haha Yes Typo!!
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19th Oct 2018, 11:13 pm | #9 |
Dekatron
Join Date: Apr 2012
Location: Worksop, Nottinghamshire, UK.
Posts: 5,554
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Re: Pye Transport
I have got an old GEC set kicking around that keyed up to something in the 80Mhz region.
Never been powered up for 30 years. I did take a photo of it when I was moving my workshop a few years ago. |
23rd Jan 2019, 3:56 pm | #10 |
Pentode
Join Date: Oct 2018
Location: Carrickfergus, County Antrim, Northern Ireland, UK.
Posts: 126
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Re: Pye Transport
Yes 72.35 and 85.85 were also used here in Northern Ireland when I joined in 1970. I had a boot mount cambridge in my car and enevitably I forgot to switch off one night and next morning resulted in a dead battery, so I fitted a relay to switch off the tx valve heaters when the ignition was turned off. I still use Philips kit on 2 metres in my car, though somewhat more modern, like an fm1100.
Dave GI8LCJ |