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161. Re: LF: Testing Audioinjector Octo with RPi3 (score: 1)
Author: Wolfgang Büscher <[email protected]>
Date: Fri, 9 Feb 2018 20:56:46 +0100
Hello Paul I might need a bit of advice from Wolf or someone on how to use the rawtcp: mode of Spectrum Lab to pull signal from it. << It's the same compressed Ogg/Vorbis format with or without times
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-02/msg00181.html (10,907 bytes)

162. Re: LF: Testing Audioinjector Octo with RPi3 (score: 1)
Author: Wolfgang Büscher <[email protected]>
Date: Fri, 9 Feb 2018 21:37:29 +0100
Yes I thought about auto-detecting uncompressed streams, 16 bit signed integer or 32 bit float, but dropped that since I had no use for it (when the WLAN connection between home and the site of VLF6
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-02/msg00185.html (11,440 bytes)

163. Re: LF: Testing Audioinjector Octo with RPi3 (score: 1)
Author: Wolfgang Büscher <[email protected]>
Date: Sat, 10 Feb 2018 10:56:57 +0100
I'm not familiar with that. When I last tried "named pipes" on windows, they were not supported by the mainstream version (windows 98 or XP, not sure). And, as usual, Microsoft have invented yet anot
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-02/msg00208.html (12,429 bytes)

164. Re: LF: RE: Todmorden receiver (score: 1)
Author: Wolfgang Büscher <[email protected]>
Date: Sat, 10 Feb 2018 23:03:08 +0100
Stefan - you could simply copy all files into SL's folder for the embedded web server. I tried this a couple of times where Firefox also refused to run javascript when loaded directly from the harddi
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-02/msg00237.html (11,258 bytes)

165. Re: LF: RE: Todmorden receiver (score: 1)
Author: Wolfgang Büscher <[email protected]>
Date: Sun, 11 Feb 2018 11:08:44 +0100
Greetings all, That would work, at least for the LAN.  Just have to drop a modified fbins3.html into the same directory. I need to provide Stefan with a script to produce the compact binary files tha
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-02/msg00250.html (11,301 bytes)

166. LF: Fwd: New Release - WSQCall with Synchronous Decoder (score: 1)
Author: Wolfgang Büscher <[email protected]>
Date: Wed, 28 Mar 2018 14:49:54 +0200
Hello Murray and the LF / MF group, Thanks for the info and the new version of WSQ. I'm sure it will be tested soon - unfortunately I still have no transmit antenna for MF / LF but I can receive from
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-03/msg00350.html (12,606 bytes)

167. Re: LF: Spectrum Lab question (score: 1)
Author: Wolfgang Büscher <[email protected]>
Date: Wed, 28 Mar 2018 14:59:28 +0200
Hi Chris, A .usr file will already have 'optimized' settings (waterfall contrast+brightness, and possible noiseblanker) for a certain receiver / input level to the soundcard, etc. The easiest way to
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-03/msg00351.html (10,493 bytes)

168. Re: ULF: A new band is opened up! 191 km (score: 1)
Author: Wolfgang Büscher <[email protected]>
Date: Thu, 26 Apr 2018 20:41:38 +0200
Nothing seen here on a 2nd PC receiving the raw signal from VLF6 with a higher resolution spectrogram, but that's no surprise with the recent QRN / thunderstorm activity. Unfortunately the low-power
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-04/msg00320.html (14,181 bytes)

169. Re: LF: Reminder: SAQ transmission soon (score: 1)
Author: Wolfgang Büscher <[email protected]>
Date: Tue, 1 May 2018 12:23:19 +0200
Thanks Johan, that was fascinating listening from three audio sources: The SAQ live stream, the Twente web SDR, and indoor loop antenna (which was the worst due to QRM). Nice paper tape loop there on
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-05/msg00003.html (9,385 bytes)

170. Re: VLF: Effective Antennas 1/1000th of a Wavelength (score: 1)
Author: Wolfgang Büscher <[email protected]>
Date: Tue, 22 May 2018 18:06:04 +0200
http://tikalon.com/blog/blog.php?article=2017/mini_antenna
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-05/msg00136.html (9,700 bytes)

171. Re: LF: SL FTP upload (score: 1)
Author: Wolfgang Büscher <[email protected]>
Date: Tue, 6 Nov 2018 20:13:23 +0100
Hello Paul, You could use the "conditional actions" to invoke the batchfile, and only set a flag (variable) in the "periodic actions". The "conditional actions" are quite versatile (you have timers t
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-11/msg00082.html (10,877 bytes)

172. Re: LF: JT9-5 decodes in km07ks (score: 1)
Author: Wolfgang Büscher <[email protected]>
Date: Sat, 29 Dec 2018 21:54:01 +0100
Hi Rik, You're welcome. The "image rejecting up/down converter" is written in plain C. It should be easily portable. Uses a 37-tap FIR filter for the Hilbert transformer that rejects the "unwanted" m
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-12/msg00583.html (42,306 bytes)

173. Re: LF: JT9-5 decodes in km07ks (score: 1)
Author: Wolfgang Büscher <[email protected]>
Date: Sat, 29 Dec 2018 22:44:54 +0100
Ok, sourcecode on the way via pm with attachment... On 29.12.2018 22:11, Rik Strobbe wrote: Hello Wolf, thanks! since I have been playing a bit with arduino's (my 15 year old son is keen of those  an
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-12/msg00588.html (48,898 bytes)

174. Re: LF: SV8CS : Good news (score: 1)
Author: Wolfgang Büscher <[email protected]>
Date: Mon, 31 Dec 2018 19:19:09 +0100
First decode with SlowJT9 (albeit JT9-1) : 474.2 kHz + 1306 Hz audio: 1814 -22  0.1 1306 1  CQ SV8CS KM07 hny,   Wolf . On 31.12.2018 18:21, SV8CS-Spiros Chimarios wrote: Hi to all. Now I found my pr
/rsgb_lf_group-archives/html/rsgb_lf_group/2018-12/msg00636.html (12,496 bytes)

175. Re: ***SPAM***Re: VLF: GOTA (score: 1)
Author: Wolfgang Büscher <[email protected]>
Date: Sun, 13 Jan 2019 11:57:46 +0100
Claudio - just wait until that b.s.-meter pulsates 1.6 times per second :o) 20 meter long tube filled with neodym power magnets, rotating at 96 RPM... but now we'll never get to know this top-secret
/rsgb_lf_group-archives/html/rsgb_lf_group/2019-01/msg00141.html (10,470 bytes)

176. Re: ***SPAM***Re: VLF: GOTA (score: 1)
Author: Wolfgang Büscher <[email protected]>
Date: Wed, 16 Jan 2019 20:33:50 +0100
Hello Jim, Of course the "20 meter long tube" wasn't a serious suggestion. I wouldn't "seriously" transmit there anyway, and you are right, it will not "radiate" more than a few femto-femtowatts (not
/rsgb_lf_group-archives/html/rsgb_lf_group/2019-01/msg00205.html (14,077 bytes)

177. Re: LF: 472 (score: 1)
Author: wolf_dl4yhf <[email protected]>
Date: Wed, 05 Jun 2013 23:37:31 +0200
There were at least three souls alive and active on MF in CW last nite: I2BBJ, EI0CF, and myself (DL4YHF, tx at DF0WD). Strange you missed Finbar, dear Mal. Stefan mostly 599 here, in qsb down to 569
/rsgb_lf_group-archives/html/rsgb_lf_group/2013-06/msg00048.html (9,774 bytes)

178. LF: MF: IZ7SLZ clg cq in JT9-1 (score: 1)
Author: wolf_dl4yhf <[email protected]>
Date: Sat, 15 Jun 2013 00:09:35 +0200
Greetings all, Despite digimodes not being my favourite obsession, I just had a nice QSO in JT9-1 with Domenico, IZ7SLZ. He's still calling cq on 474.2 kHz "dial" + 1700 Hz "audio". During my own tx-
/rsgb_lf_group-archives/html/rsgb_lf_group/2013-06/msg00198.html (8,650 bytes)

179. LF: Re: [rsgb_lf_group] a lot of WSPR activity last night + 2 decodes in WSJT from DL4YHF (score: 1)
Author: wolf_dl4yhf <[email protected]>
Date: Sat, 22 Jun 2013 17:58:46 +0200
Hello Marco, Thanks for the report. Actually the transmitter is at DF0WD but the signal was generated by/at DL4YHF :o) Indeed I kept the number of transmissions low to avoid QRMing my neighbours and
/rsgb_lf_group-archives/html/rsgb_lf_group/2013-06/msg00256.html (20,130 bytes)

180. Re: LF: 8270 (score: 1)
Author: wolf_dl4yhf <[email protected]>
Date: Mon, 10 Jun 2013 00:07:19 +0200
Well I was looking at the signal from my VLF 'natural radio' stream, but not much hope due to the tremendous QRN... even the Alpha bleeps were sometimes obscured by the sferics ! The primary goal was
/rsgb_lf_group-archives/html/rsgb_lf_group/2013-06/msg00355.html (10,835 bytes)


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