Hi Marcus, Stefan, if you can provoce the error I can send you an EXE with some additional debug lines in order to locate where it goes wrong. 73, Rik ​ Van: Rik Strobbe Verzonden: zaterdag 29
Hello Wolf, thanks! since I have been playing a bit with arduino's (my 15 year old son is keen of those and I can only encourage that) I can more or less "read" C language. I will appreciate it if yo
Hi Wayde, for the moment I can only monitor one band at a time. I will RX (and eventually TX) on 474.2kHz dial from now till +/-23UTC and the move to 136.0kHz dial (RX only) overnight. In the morning
Hi Andy, the current upper frequency limits are 1400Hz for JT9-1 and JT9-2 and 840Hz for JT9-5. The limits for JT9-1 and JT9-2 were set just to avoid unintentional JT9 transmissions in the WSPR band
Hello Paul, in the current SlowJT9 version double and quadruple tone spacing can be selected. If it is of any help I can allow any value for increased tone spacing. The practical limit will be the TX
But this will solve only the TX stability problem, you will still need a sufficient stable RX! 73, Rik ON7YD - OR7T ________________________________________ Van: [email protected] <rsgb-lf-grou
Dear all, Roger, VK4YB, asked me about JT9-5 frequency stability requirement. As this might be interesting for others too, my answer below. 73 & HNY Rik ON7YD - OR7T Van: Rik Strobbe Verzonden: zonda
Dear all, Beta-release v0.9.14.0 of SlowJT9 has been uploaded, see http://www.472khz.org/SlowJT9/. Changes: -JT9-10 mode added. - Waterfall speed will adapt to selected JT9 submode. - Any (reasonable
Hello Andy, the drift is given as Hz/min, so for JT9-5 the drift can be as high as 1Hz over the (almost) 5 minute TX cycle. The decoder must somehow be able to correct the drift within certain limits
​I doubt that someone will be put behind bars for sending some RF through a guard rail. But if so, I am confident that Stefan will make a decent ELF antenna using those bars ;-) 73, Rik ON7YD -
"long low metal structures of any kind do not make good VLF / ELF TX antennas, and for that reason are never employed. Also, they do not generate a vertically polarised signal" Low horizontal structu
Hello Stefan, internal frequency conversion is on my to do list. For now I am focussing on the implementation of uploading to PSKreporter, once that is done I will target the internal frequency conve
Hello Alex, Spiros, Stefan, I have the RX running on 136kHz since a few minutes. If I copy one or more of you I will report. 73, Rik ON7YD - OR7T Hi to All. I am TXing now JT9-10, + 415Hz - 1st perio
​Hello Andy, SlowJT9 does use the WSJT-X decoding engine (JT9.EXE). JT9-2, JT9-5 and JT9-10 are resampled to JT9-1 and send to the JT9 decoder. In the resampling process frequenties are multipl
Hello Stefan, Spiros, indeed, I messed up the waterfall display a bit, this will be fixed in the next release. It can be more or less corrected by - setting the offset close to 0 (click close to the
Hello Paul, I will monitor both modes overnight on 136kHz dial and report in the morning. In JT9-10 I had 5 copies of R7NT so far (QRB 2505km). 73, Rik ON7YD - OR7T __________________________________
Hello Paul, Alex, below my overnight JT9-10 copies . Not a single copy in JT9-5. The last copy of Paul (so far) was at 08.00 UTC, in broad daylight. 73, Rik ON7YD - OR7T 2240 -36 -0.6 405 X R7NT KN97
