Roger G3XBM's (Mainly) Amateur Radio Blog

Simple QRP projects, 10m, 8m, 6m, 4m, FT8, 160m, WSPR, LF/MF, sub-9kHz, nanowaves and other random stuff, some not related to amateur radio.

Showing posts with label low power. Show all posts

Showing posts with label low power. Show all posts

7 May 2010

Shoe power source (from Elector Newsletter)

A novel way of generating a small amount of power using a piezo-electric generator within a pair of shoes is shown in the latest Elector Ne...

14 Apr 2010

Free power transmitters

Mike AA1TJ has sent me an interesting letter about using thermoelectric modules to generate a few milliwatts of power from body heat. This ...

29 Mar 2010

A new personal WSPR DX record

This evening I put the WSPR beacon first on 20m and then 30m running 1W into the 5m long vertical matched with the Elecraft T1 auto-ATU. Fir...

20 Feb 2010

2010 ARRL International DX Contest

Conditions on 15m were good enough for some solid CW QSOs across the pond this afternoon. Worked stations in New Hampshire, Connecticut and ...

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Roger G3XBM: Burwell, Cambridge, United Kingdom

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