Presentation on theme: "Ham radio fun without complexity Roger G3XBM"— Presentation transcript:
1Ham radio fun without complexity Roger G3XBM www.g3xbm.co.uk “Kitchen Sink” RadioHam radio fun without complexityRoger G3XBM
2Tonight My approach Homebrew techniques Ideas for homebrew fun Useful linksGood kitsGood value commercial rigs
3My Ethos Modest power Simple equipment Simple antennas Small is beautifulSimplicity is eleganceDon’t waste money
4Homebrew Approach Bursts of energy – long gaps without building much Go for projects that will get finishedPCBs not required for “one offs”Projects that don’t need lots of test gear.Go for good kitsHasn’t got to be amateur radio related.Use the gear you make/own.
5Components Choice Ugly construction Discrete parts VXO/crystal controlledStandardise on parts: 2N3904/6, MPF102, T50-2, T50-6, 0.1u, 10u, 1k, 10k etcRe-use partsRecycle boxes
6The Humble Crystal Set Simplest radios to get going Possible to hear real BC DX on HFMore to them than you might thinkAmateur band DX reception possible-55dBm
740m Regen Receiver9 parts, works wellCW/SSB, -100dBm
8Single FET transceiver Sensitive, stable, non-fiddly, regen RX1 active deviceStable, crystal controlled, TX14 parts !