My very first job at Pye Telecom was to convert a PF1 RX to 12.5kHz channel spacing. Looking back, this was a test by Mike Gotch (later G0IMG, now SK) to find out what I could do. Mike was an assistant chief engineer back then. When he left he was a keen 6m man.
The PF1 was a UHF transceiver pair that was adopted by the UK police in the 1960s. It had a separate TX and RX unit. The TX was quite low power and had a pop-up antenna. The RX had a plate antenna.
Later, I worked on several Pye Telecom/Philips/Simoco/Sepura portables and pagers. I worked on several intrinsically safe units. Overall, it was a fun career. These days radio is still my main hobby and I am not involved professionally.
See https://sites.google.com/site/g3xbmqrp3/vuhf/pf1
24 Apr 2018
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