My first beacon on 30 m, a free-running Ultimate QRSS kit (no GPS) has now been running for a full 24 hours using the Weak Signal Propagation Reporter (WSPR) mode.
The figure comes from the WSPRnet page.
With an output power of about 150 mW to an 80 m horizontal loop it has not been possible to reach beyond Europe so far. Perhaps this will happen in the future with better conditions and/or with some more output power.
Added 26.9.2012: I made it for the first time across the Atlantic!
Timestamp Call MHz SNR Drift Grid Pwr Reporter RGrid km az
2012-09-26 00:50, LA3ZA, 10.140262, -26, -2, JO59fu, 0.2, WB2EEE, FN21xh, 5852, 290
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20 September, 2012
16 September, 2012
Altoids Projects
Press image for magnification |
These tins are inexpensive, well shielded, easy to work with, and least but not least they enable you to make experimental circuits that are sturdy enough that they can be reused later.
Pictured here is a collection of projects I have built over the years with the hope that they may inspire others.
04 September, 2012
Noisy Designer Lamp
Herstal pendant lamp, type 06 |
After some years of always having to remember to turn them off, in the end I just replaced the original noisy dimmer with a fixed voltage, noiseless, electronic transformer and inserted lower wattage 12 V light bulbs in the two lamps.
The original dimmer came in its own nice conical designer housing and inside one finds a more ordinary plastic housing. And of course it is marked with the CE mark, thus indicating that it should be fine with respect to noise.