Roger G3XBM's (Mainly) Amateur Radio Blog

One of my early jobs in the labs at Pye Telecom was rebanding the PF70 to the band that included 2m. This involved optimising coils and capa...

One of my first professional jobs at Pye Telecom was re-banding the PF70 to the band that included 2m.  In those days crystals were quite in...

Most of my working life was in design in the Pye Telecom days. Although Philips bought Pye in the late 1960s, it was very "hands off...

In my working life I worked at Pye Telecom, later Sepura, retiring in 2008. You may be interested in Pye Telecom. Most of the products were ...

Some managed to put PF1s on 70cm.  When I started work a test was to convert the PF1 units to 12.5kHz channel spacing. The PF1's were wi...

For a long time in the last century, Pye was a very big name in the electronics world. Pye made a diverse range of products. Now there is...

Some years ago I was professionally involved in the design of this innovative transceiver. I am sure I mentioned this on the blog not too ...