G3YJR homepage    Graham Coyne - Sheffield, South Yorkshire, England.

locator: IO93FJ   WAB square: SK38  235m above sea level.  QSL via the bureau.

Sheffield & District Wireless Society Website

G3YJR_Blog (Old_G3YJR_Blog)

Callsign lookup: QRZ.com, HamCall

PIC programmer (designed by David Tait)

VHFCC – contest calendar etc.

UK Microwave Group – contests etc.

DX Cluster: latest 1000 spots ON4KST

UK synoptic WX chart

SOTA: Summits on the Air SOTA watch


VHFdx.info: 6m 4m 2m 70cm 23cm

Sheffield's Sewer Gas Destructor Lamps

Aurora Watch

Fond memories of Noggin the Nog? Try the Dragons’ Friendly Society

Weak Signal Propagation Reporter Network

WSPRnet Map G3YJR WSPR blog

LT23S User Manual (English) 

LT23S front-end FET fault. MGF1200 - ATF10136 replacement, substitute. Repair.

23cm Linear Transverter

Picture Gallery

Peregrine falcons (Sheffield) - live webcam

Eindhoven wRebSD 3cm Eindhoven other bands

Mow Cop SDR

Fareham SDR

 find Maidenhead locator (10-digit)

Solwise Surface Elevation Tool

Lat/Long, Maidenhead, grid ref convertions

UK Lightning map UK rain map

Replacing a victorian skylight with a Velux window

 John Henry Coyne (G1UFH) died 3-May-08


meta-search engine


Activity Logs























Repairing an Xbox360 head-set

UK Amateur Radio Quick Links (G7KPF)

Sony CMT-CP11 Hi-Fi review

Orkney Wireless Museum


site updated 19-Nov-2018