28 Feb 2010

11th country on 500kHz

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Just had a 500kHz WSPR report from MW0CVT 250kms to the west of me. This is now my 11th country from which I've had reports on the band...

Amateur DXing below 9kHz (VLF)

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Some recent discussion on the LF Reflector is suggesting that distances of >100kms should be workable with amateur stations below 9kHz, a...
26 Feb 2010

QRP transatlantic on 80m

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Just got a report from W1XP on 80m WSPR when running just 1W into the 5m long vertical. DX is 5280kms. Report suggests that 500mW would als...

New Zealand gets 500kHz (for now)

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From March, New Zealand amateurs will be allowed to use 505-515kHz. The number of administrations making temporary allocations is increasing...

Australia on 40m QRP tonight

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It really is too easy with WSPR on HF.  Last night some reports from Antarctica and tonight a brief 5W transmission on 40m got me another r...

First sub-9kHz NoV application with OFCOM

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G7NKS has already submitted his application for an NoV to operate below 9kHz. Mine will be prepared in the next few days. Approval (or rejec...
25 Feb 2010

WSPRing to Antarctica on 30m

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This evening my 30m WSPR signals got to Antarctica with several reports from the German Research Station DP1POL in IB59 some 13690kms to th...

NoV permits for operation below 9kHz

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OFCOM has informed me today that, subject to acceptable outcomes of consultation with other sub-9kHz spectrum users such as the Met Office, ...
2 comments:

Lowest frequency commercial/military VLF transmissions?

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The two lowest VLF frequencies in use are apparently: 11.904 kHz  RSDN-20 network , a Russian navigation VLF system with transmitters loc...

Improved VLF converter

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Chris HB9DAO has sent me a copy of his modifications to my SAQ VLF converter that was published a few years ago in SPRAT. His changes make ...