Dear Mark, LF Group, Thanks for the info on reception of the WSPR beacon. It was shut down at about 0830utc. The data from all the receiving stations out as far as TF3HZ at about 1800km is so far qui
Dear LF Group, The WSPR beacon is now (2011utc) running on nominally 503.500kHz, with 1W ERP output. At the moment, it is transmitting 100% duty cycle, although I might reduce that if it gets too hot
Dear LF Group, Good copy of XGJ last night around 0045utc - the signal was visible on and off until daylight. No sign of any Russian stns though. Cheers, Jim Moritz 73 de M0BMU Attachment: dec_2900_c
Dear Mal, LF Group, No. Other "activity" within the 200Hz range would only corrupt signals whose particular 6Hz bandwidth the "activity" was inside. So WSPR beacons could coexist with other signals w
Dear Mal, LF Group, I received your screen shot taken at 2158utc. I see you copied it to the reflector, but it was probably too big an attachment to get through, so I have cropped out the relevant pi
Dear LF Group, Was QRV on 136kHz this evening for the first time in quite a while - Thanks for the QSOs to RU6LA, DK4U (complete with Christmas decorations!) and F4DTL, who is a new station for me. E
Dear Mal, LF Group, The bandwidth occupied by a WSPR signal is around 6Hz. Even if every station with a licence ran a WSPR beacon on 500k, only a small fraction of the band would be occupied. Practic
Dear LF Group, Quite strong signals from G3YHV earlier sending a beacon signal on about 502.4kHz, alternating CW and RTTY. However, very little copy of the RTTY here - the shift seemed to be about 13
Dear Mike, LF Group, For the "A" mode, the tones cover a range of about 170Hz, plus several hertz for the sidebands on the tones. For some reason, the CW ID is offset in frequency by 470Hz or so on t
Dear Jay, LF Group, Thanks for the reports ... I saw 1 more decode from WE2XGR at 0012utc I will leave the M0BMU beacon running overnight. Cheers, Jim Moritz 73 de M0BMU
Dear Jay, LF Group, So far (to 0100utc) there have been about 12 further decodes of Jay's signal. I will keep monitoring until 0400utc. Cheers, Jim Moritz 73 de M0BMU
Dear Mal, LF Group, Connecting 2 or more antennas together via a combiner produces a phased array - It is then important to control the phase relationship between signals arriving from the different
Dear Gary, LF Group, Quoting from the Propagation chapter of the Admiralty Handbook of Wireless Telegraphy 1938 edition: "It is usually observed that the different frequency components of a modulated
Dear Jay, Mal, LF Group, Just returned home and saw details of your sked - KEV has been sending an "o" report for nearly an hour (now 2255utc) , so I guess you got started early. In a few minutes I'l
Dear LF Group, There is a similar NTP set-up for Windows Vista - see http://www.howtogeek.com/howto/windows-vista/dealing-with-windows-vista-time-sync-problems/ . I am trying it here at the moment, a
