G4BAO.COM
Microwave Amateur Radio Station, Waterbeach. 8km North Of Cambridge JO02cg
To Contact me:
Skype johng4bao
E-mail john at g4bao dot com
QTHR
About me
Then Now
My name is John Worsnop and I am a retired Chartered Engineer. I was first licensed in 1971 as G8EQR. On passing the old Post Office Morse test I became G4BAO in 1972 .Over the years, my interests have been in the technical aspects of the hobby mainly at VHF and UHF. My passions are radio propagation and weak signal working.
I worked on some of the early repeaters during my time at Pye Telecommunications in the 1970s, designing and building the Power Amplifier and Duplexer for GB3PT, the UK’s first RTTY repeater. At around the same time I designed and built the Transmitter for the now – defunct 70MHz beacon at Crowborough in Sussex.
I then went on to academic career for 9 years, then back to the Wireless industry with Spectronics Microsystems, MDSI and Digital Dispatch, ending up with Splashpower, the now defunct pioneers of wireless battery charging
During the 70s and 80s I focused on 70MHz and was active on 28MHz/50MHz crossband during Solar Cycle 21. I was one of the “Fortunate Forty” who in 1983 were issued with the first permits to operate on 6 metres in the UK.
My 6 metre permit
My PhD thesis “A Study of the End Point Geometry in Meteor Burst Systems” (CNAA 1990) 
is a “Lost Classic”
There is now a searchable PDF of the thesis here.
Thanks to Marcus Walden G0IJZ for taking the trouble to photograph each page and his colleagues at Plextek for doing the indexing
Lately my interests have moved higher in frequency and I am currently active on, 1.3, 3.4, 10 and 24GHz., I built the microwave beacons GB3CAM (24GHz), GB3PKT and GB3BSS,