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• LF News, 7^th June 2008

  • 7/6. New low-signal mode. MEPT_JT has been developed by K1JT and ZL1BPU. The program "WSPR" (Whisper) generates and receives signals using structured messages, strong forward error correction, and narrow-band 4-FSK modulation. Its principal design goal is reliable copy at very low signal levels. In practice it works well at signal-to-noise ratios down to -27 dB in a reference bandwidth of 2500Hz. The Windows GUI version can be downloaded from the software page.

  • 13/4. 500k to Moscow. Mal G3KEV has now worked RW3ADB on CW and QRS3 crossband to 40m. The latest QSO was on QRSS with an "O" report for Mal on 502.6kHz. Mal often calls for crossband QSOs listening on 7033 CW.

  • 29/3. LW TX up for grabs. Two Redifon G142 transmitters with all ancilliaries are available free to anyone who will collect from the Wirral. Contact me for info. Pictures here.

  • French LW forum. There is now a French langauge forum for the discussion of all matters LF and MF. Follow this link.

  • 7/3. G3LDO works VO1NA on 500. Last night Peter had a cross-band CW QSO with VO1NA, he was on 501.19kHz CW and Joe was on 40m. Peter's signals peaked 439.

  • 1/2. 500kHz NOVs extended - and more power. Ofcom have stated that they intend to extend the 500kHz NOVs until Feb 28th 2009. The current documents expire at the end of this month. New NOVs will be sent out to all holders of the current one. The power limit under the new NOV will be 0dBW erp, a 10dB increase. Full details on Ofcom's web-site.

  • Who's on 136kHz? See the "Noticeboard" link for a list of countries with access to the 136kHz band courtesy of the IARU. Research by Lawrence 9H1AV / 9H9MHR.

  
  

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