ad: L-HROutlet
ad: l-rl
ad: L-rfparts
ad: l-gcopper
ad: Subscribe
G4SWY England flag England

Login is required for additional detail.

Email: Login required to view

Ham Member Lookups: 11828


I first became interested in DXing in the early sixties at the age of 14 when I was given an old broadcast receiver with bandspread and became fascinated with the number and variety of shortwave propaganda stations that I could pick up with a wire antenna. A little later I discovered that by fiddling with coils in the receiver I could hear many local radio amateurs on 160 meters who were at the time mainly using AM, SSB being newfangled then. One night at about 2am however I was excited to hear an American medium wave station and this spurred me on to build a large loop antenna which enabled me to hear medium wave stations from all over the USA and elsewhere and build up a collection of QSL cards and spurred my interest in radio propagation.

I passed the three hour written UK Radio Amateurs' Examination in 1969 but waited until I had finished my degree studies before obtaining my Class B licence G8LDR in 1976; and then the Class A G4SWY after passing the Morse test in 1983. I was then very active on 2 metres SSB and RTTY and was an early adopter of 6 Meters as soon as that band became available in the UK. I also ran a popular packet mailbox for a couple of years.

I am currently working 6 Meters with a homebrew Moxon antenna, 2 Meters with a 9 element Yagi and 10 Meters with a dipole. I especially enjoy six (the magic band) and sometimes chatting on my local GB3HR 70 cms repeater as well as contesting on six and two. Although my QTH is in a high location I cannot erect external aerials so all my antennas are in my loft which is big enough to allow rotation of the 2 meter yagi and to string up the 10 meter dipole. I am building a copper pipe loop for the lower HF bands and have plans for a 70cms beam. 

If you hear me on an HF band I call myself DEL instead of Derek as that is shorter and easier. That is what my family calls me.

I am now enjoying my retirement from IBM where I was a software developer but am still obsessively writing software for Windows PCs and Android devices. My other interest is birdwatching, (see photo)

An older amateur radio software project requiring attention is 'WSPR World Watch' which maps WSPR spots on Android devices in order to view real-time propagation conditions. This has attracted several thousand permanent installations but is not generally appreciated as a generic propagation tool for all amateurs but rather as a niche tool for WSPR operators.

See https://play.google.com/store/apps/details?id=xxx.wspr.g4swy 

  My other published Android project is 'Pocket Prefix' which started off as a project for easily and rapidly looking up detailed information about Amateur Radio callsign prefixes, but with continued development evolved into a more general tool that does other things including plotting DX Cluster spots on a band plan chart. 



See https://play.google.com/store/apps/details?id=g4swy.prefixdecoder.lite     





These photographs are somewhat out of date.  I am still using the Heil microphone but not much else.


8085785 Last modified: 2017-05-09 21:43:50, 3965 bytes

Login Required

Login is required for additional detail.

You must be logged in to file a report on this page

Please login now...

Public Logbook data is temporarily not available for this user
ad: giga-db
Copyright © 2017 by QRZ.COM
Sat Aug 19 16:52:41 2017 UTC
CPU: 0.043 sec 60411 bytes mp