Dear Jay, Mal, LF Group, Didn't get QRV on transmit until 2340 due to an equipment problem, but nil seen on 508.51 up to 0040, so now going QRT. Cheers, Jim Moritz 73 de M0BMU
Dear Scott, Mark, LF Group, Thanks for listening. Yes, the "dial frequency" is 502kHz, and the actual output is nominally 503.5kHz centre frequency, although it may actually be a few Hz higher. In an
Dear Mal, LF Group, It is decoding correctly on my off-air monitoring here... Cheers, Jim Moritz 73 de M0BMU Jim In the middle of ur transmission I am getting printing from a DJ stn, qrm. No print ou
Dear Rik, Brian, Andy, LF Group, As Andy says, it is difficult to seperate out the directivity (i.e. gain due to the shape of the radiation pattern of the antenna), the gain reduction due to antenna
Dear LF Group, The WSPR beacon is now running in "33% TX" mode, i.e. it transmits on average in 1/3 of the 2 minute time slots an receives the rest of the time. QRG is 503.510kHz (nominally) TX, 502.
Dear Mal, LF Group, The transmited WSPR signal has a bandwidth of about 6Hz. SSB mode is used for transmission in order to translate the soundcard audio to the appropriate RF frequency. But the signa
Dear Jay, LF Group, Now getting "good" message from WE2XGR, with correct locator square and power - after some fiddling around with PCs, I also seem to be uploading spots into the WSPRnet.org databas
Dear LF Group, Thanks for the reports on the JT65 beacon. M0BMU is now QRT to listen for WD2XGR/2. Mal: Are you sure you are on the right frequency? The DL beacons are audible here too, but they are
Dear Brian, LF Group, Very interesting to see the field strength measurements spreadsheet from CT1DRP. At M0BMU, the results of similar measurements show comparable variations in calculated ERP - a r
Dear LF Group, SAQ was 599 as usual here, from about 1039 - 1056 utc this morning, with good copy of the message marking the opening of the Alexanderson Institute. Cheers, Jim Moritz 73 de M0BMU
Dear Jay, LF Group, Still getting fairly frequent decodes - I'm off to bed, but will leave the RX and internet running until morning, so my logs should keep appearing at WSPRnet. Thanks for the tests
Dear Jay, LF Group, I intend to operate a WSPR beacon tonight on 503.5kHz +/-, (i.e. "dial frequency" 502kHz) probably from about 2230utc onwards. I hope to be operating with split receive frequency,
Dear LF Group, Thanks to all who sent reports on the WSPR beacon, which ran from about 1950utc - 0705utc. Was very pleased to be copied by TF3ZH - I think this is the first report of any description
Dear Jay, LF Group, Just got the first decode "WE2XGR/2 FN31" at 2300utc. There are weak traces visible at the sync frequency on the spectrogram, and nothing audible. Cheers, Jim Moritz 73 de M0BMU D
Dear Stewart, Gary, LF Group, The reason I resorted to rather primitive techniques to set the PC clock is that the shack PC is a rather aged laptop that has no network card, making connection to the
Dear Jay, LF Group, Now it has got dark here, I can see a number of weak spectral lines between 508.49 and 508.50 kHz, But otherwise 508.5kHz +/-100Hz is clear. If you could offset your signal by +10
Dear Jay, LF Group, I'll take a look at the 508.5kHz QRG later on, when the noise levels come up a bit, to see if it is clear here. Cheers, Jim Moritz 73 de M0BMU
Dear Mike, Chris, LF group, I would agree with Chris' comments regarding Op-amp suitability - the preamp circuit appears to be designed for 40dB voltage gain, which it won't achieve at MF with an OP-
