Hello Paul, Eric, Andy, AC coupling with a large C will not solve the problem. At "key up" one of the driver outputs will remain high thus the gate of theFET connected to that output will remain high
Hi Stefan, Eric, this might solve the PS tripping problem, but on the other hand it might also provide the MOSFET the draincurrent it needs to die ;-) 73, Rik ON7YD - OR7T Hi Eric, What happens to th
Dear all, as mentioned in my mail of 12 February SlowJT9 version 0.9.16.0 has a "multiple decoding" ability. If this is selected SlowJT9 will not only try to decode the incoming audio "as it is", but
I am an electronics engineer, but working at the Chemistry department of a university. So I have to deal with chemists all day long at work ... and as it seems now, on this reflector too ;-) 73, Rik
Hello David, congrats on the TA QSO and I am happy that SlowJT9 was helpful. The advantage of multiple deconding will be under marginal conditions (SNR of -26dB or less), although occasionnaly up to
Hello Chris, Andy, all, Regarding SlowJT9: adding a simple alert via a serial port pin going high is easy. Via that pin you can drive whatever you want (a simple buzzer or a more sophisticated "alarm
Hello Neil, Paul, all, sorry for the delayed reply, but I have been very busy otherwise the past weeks. But now I have a test version of SlowJT9 (not published yet) that allows UDP broadcasting. But
Hello Paul, sending text messages (SMS) to a mobile number is possible, but it there will be a cost per message. Sending e-mails is also possible, but this will invoke your default e-mail app. In mos
From the article: "Early tests proved that signals sent from the transmitter to a receiver placed 100 feet away produced VLF radiation up to 300 times more efficiently than other antennas with simila
Dear all, Beta-release v0.9.20.0 of SlowJT9 has been uploaded, see http://www.472khz.org/SlowJT9/. Changes: - Soundcard sample rate changed from 12000 Hz to 48000 Hz. - Alert function added (includin
Hi Lubos, is this of any help: https://www.manualslib.com/manual/1005872/Eddystone-6200.html​ ? 73, Rik ON7YD - OR7T Van: [email protected] <[email protected]>
Hi Johan, Stefan, same problem here, I replaced it by CPH3910 as a low noise preamp. Not 100% identical but it was good enough for me. I believe all mayor resellers (Farnell, Digi-Key, RS, Mouser) st
