30 Sept 2010

More reports wanted on 137kHz WSPR

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Continuing to beacon close to 137.467kHz WSPR with about 20uW ERP and getting regular reports from M0BMU (69km) and occasionally others when...
1 comment:

137kHz receive challenges

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Several people have emailed me about receiving signals on 136/137kHz. Now I'm certainly not greatly experienced in this, but a few thin...
28 Sept 2010

VE7-JA QSO on 136kHz

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JA7NI and Scot VE7TIL completed a trans-pacific QSO on 136kHz this morning, a first between Canada and Japan.  DX is 7162km. This was the ...
1 comment:

7th new reporter on 137.5kHz WSPR

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M0BMU   copied my 137.5kHz QRP WSPR signal today giving me -19/-20dB S/N, which is quite a good report. Distance is 69kms. This is now the 7...
27 Sept 2010

Sub-9kHz Amateur Radio group: 100+ members already

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Since creating this new group on Saturday it already has over 100 members. Now we need to see some postings from people actually doing activ...
26 Sept 2010

A good evening on 500kHz

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This evening I was well pleased with my simple 500kHz transverter and the vertical wire loop antenna in the garden producing around 2mW ERP....
2 comments:

137kHz QRP transverter (provisional schematic)

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Attached is a first draft of the 137kHz QRP transverter schematic. The values are not all correct or optimised on the circuit. Also the RX p...

500kHz ERP with the vertical loop antenna

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Results on 500kHz WSPR with the vertical 80sq m area loop (made from 1mm diameter wire) are very good with signal reports from G3XIZ this ev...
25 Sept 2010

6th unique WSPR reporter on 137kHz

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This autumn is beginning to look a bit like last year when I was taking my first tentative steps on 500kHz WSPR: each week would land me a f...

Sub-9kHz Amateur Radio (Yahoo group) formed

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This new group is for anyone interested in amateur radio communications below 9kHz in the so-called "Dreamer's Band".  See ht...