Also showing on Paul Nicholson's phase-steerable h-field spectrogram at Todmorden. http://abelian.org/vlf/fbins.shtml#p=1486216800&b=080&s=sp 73 Terry From: Markus Vester <[email protected]> To: r
When Stefan posted the Amazon UK link on 5th June, there were 5 available in the UK. Stefan, Paul and I bought one each - not sure where the others went! Have you been following Paul's tests with his
Markus Sorry you missed the Octo, I'm sure another batch will be released soon. The designers, Flatmax, offer a discussion forum at: http://www.flatmax.org/phpbb/viewforum.php?f=9 The most recent po
The only thing I have to sort out now is the timing pulse. it looks horrible on vtscope, a sort of double humped thing and the timing doesn't have anything like the values shown on your vtscope scree
Yes that's it! I have a 100k from the +5 PPS output in series with a 2.2 uF to ground. The PPS output to the Octo is taken from the RC junction. The Garmin can be programmed for pulse length but als
Thanks Paul I'll follow this up when I get back. QRT for a few days - our 40th wedding anniversary! Terry Then there's a high pass getting in the way, must be the input circuit of the Octo. You'll ha
Hi Stefan My plan is to build some "proper" crossed loops for VLF. At the moment, I am using the Wellbrook LF version (down to 10 kHz). As the Octo has a 96 kHz sample rate, I would like broad-band l
Hi Stefan Can the 6M be re-programmed the same as the 7M - as described by Domenico in his post 23 June: -- "in these days, Tony IK1HGI from JN45jj, is transmitting some (not announced) EbNaut test m
Hi Stefan Can the 6M be re-programmed the same as the 7M - as described by Domenico in his post 23 June: Answered my own question from the data sheets (yes - both modules have configurable time pulse
Hi Markus Try eBay again. Electroacoustics are advertising for 75 AU$ + $15 for world wide shipping from China/Hong Kong. Showing more than 10 available. A search for "Audio Injector Octo Sound Card
Hi Stefan Did you get gpsd and ntp working by following Paul's info (email 21/07)? I have a UBlox NEO 7M connected to the RaPi by USB and I can run xgps or cgps and see that the NMEA is being read. B
Hi Stefan thanks for the advice. I also found online those additional steps to stop and disable the gpsd socket and then to start manually. I found a lot of info for using the RaPi as an NTP server i
Paul - thanks for advice. Apologies to others as this is a bit OT. Ntp is now running from the gps. However, gpsd still required additional commands to work. This command: sudo gpsd -bnN -D3 /dev/tty
Hi Stan The Octo soundcard plugs onto the gpio of a Raspberry Pi single board microcomputer, therefore it is suitable for use ONLY with the Raspberry Pi (and a thorough knowledge of Linux !!) Audio o
Hi Stan Just in case you haven't seen some of the discussions on this reflector...I should have mentioned that the Octo/Pi combination works fine with Paul Nicholson's vlfrxtools. You can find detail
Hi Mal It is an "FT8 frequency" - you should be able to decode with WSJT-X. version 1.8.0 rc2 I know you aren't using the CAT feature of WSJT-X but if you go to the frequency band box and look at the
Hi Paul I'm following your progress with interest as I have a couple of Octo/RaPi3. Did you get this request from Amazon: "As someone who owns Octo 8 channel sound card..., can you help this fellow c
Hi Paul How do we make a request for these? I am interested and could fairly easily collect from Doncaster. The spec sheet is available with an easy Google "Audio Amplifier MC1250" and they look very
Gary, Joe LF Thanks for including me in the 04:56 reception! Joe - thanks for the transmission. It was interesting to compare the signal variation at stations and between stations over the night. I h
I guess these tests relate to a proposed new system being discussed in ITU Working Party 5B: PROPOSED MODIFICATIONS TO PRELIMINARY DRAFT NEW REPORT ITU-R M.[500 kHz] Utilization of the 495-505 kHz ba
