Pye PF1 transceivers

My first job in 1970 at Pye Telecommunications was to convert the PF1 transceiver to 12.5kHz channel spacing. I am pretty sure this was a test to see how I got on.

We used 995 signal generators at that time and, boy, did they drift! For the first hour or so they were unusable and you might as well drink coffee and wait.

The PF1 was a 2 unit UHF transceiver widely used by the UK police in the  late 1960s. Some were converted to 70cms. I remember putting a 2m super-regen RX in a PF1 RX case.

This challenge was set by Mike Gotch who was later G0IMG (now SK). Apparently Mike was a pirate in his early days. In later years he was a keen 6m man.

See https://sites.google.com/site/g3xbmqrp3/vuhf/pf1
See also http://www.pyetelecomhistory.org/