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References: [ +from:[email protected]: 1764 ]

Total 1764 documents matching your query.

161. Re: LF: 136.172kHz QRSS60 tonight (score: 1)
Author: [email protected]
Date: Sun, 12 Apr 2015 11:10:14 -0230 (NDT)
Hi Markus, Stefan, Nice sigs last night, captured 0320. Meanwhile on VLF QRSS60, a new DX record: 2.8km at 15 dB above noise... 73 Joe VO1NA Attachment: nmfc120415.jpg Description: JPEG image
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-04/msg00108.html (10,687 bytes)

162. Re: LF: VO1NA capture 20.04.2015 (score: 1)
Author: [email protected]
Date: Mon, 20 Apr 2015 16:12:15 -0230 (NDT)
Thanks Joe, A lovely copy and a gratifying result of the work done on the home-brew power supply for the Decca. It was strewn in bits all over the floor in the shack for the past fortnight. Now the f
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-04/msg00130.html (9,272 bytes)

163. Re: LF: VLF earth-mode test today (score: 1)
Author: [email protected]
Date: Mon, 20 Apr 2015 22:02:07 -0230 (NDT)
Hi Roger, Your TX/RX may be giving disappointing results at the moment, but your VLF web page is certainly not. Keep up the good work -- it is inspiring and appreciated. So far, my best VLF DX is 4.7
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-04/msg00136.html (10,447 bytes)

164. Re: LF: VO1NA capture 21.04.2015/DF6NM Grabber/ VLF (score: 1)
Author: [email protected]
Date: Wed, 22 Apr 2015 09:30:37 -0230 (NDT)
Hi Joe, Another lovely capture. Thanks again. It seems Markus' grabber is stalled. I hope all's OK. I've wound 2 new pie tuning coils using a drill press. It was very quick and convenient and hope to
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-04/msg00149.html (13,646 bytes)

165. Re: LF: VO1NA OPERA32 decodes (score: 1)
Author: [email protected]
Date: Wed, 29 Apr 2015 20:17:58 -0230 (NDT)
Hi Joe, Thanks to you and Iabn and Mike for the reports. The OPDS at DF6NM and DK7FC show my TX QRG is low my 1 mHz. After 2 years it seems the DOCXO may have drifted a bit! It will be fun to recalib
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-04/msg00189.html (10,243 bytes)

166. Re: LF: VO1NA capture 05-07-2015 (score: 1)
Author: [email protected]
Date: Fri, 8 May 2015 09:31:00 -0230 (NDT)
Hi Joe, Many thanks for the report. It is good to know that others are watching. TX 4 Amps RF to the 100m wire. 73 Joe VO1NA Hi Joe, LF another nice copy of VO1NA last night 13777711128.jpg 73 Joe DF
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-05/msg00035.html (9,294 bytes)

167. LF: DK7FC VLF probe (score: 1)
Author: [email protected]
Date: Fri, 8 May 2015 22:14:16 -0230 (NDT)
Hi Stefan and group, I am building a probe using your design. Could you explain the interstage network and the 470 uH choke? I hope to use this to detect some 36 km photons. So far, using the PA0RDT
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-05/msg00040.html (9,249 bytes)

168. Re: LF: DK7FC VLF probe (score: 1)
Author: [email protected]
Date: Sat, 9 May 2015 10:40:54 -0230 (NDT)
Stefan, Thanks for the info and advice. Yes, ferrite beads sound like a good idea. The resistors and caps (1M 100k 68pF 680pF etc) between the FET's are for lowpass or something else? 73 Joe VO1NA Hi
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-05/msg00044.html (10,797 bytes)

169. Re: LF: DK7FC VLF probe (score: 1)
Author: [email protected]
Date: Sat, 9 May 2015 10:57:25 -0230 (NDT)
Thanks Stefan, I'll post a progress report soon. Tomorrow a 10k race! 73 Joe Am 09.05.2015 15:10, schrieb [email protected]: [...]The resistors and caps (1M 100k 68pF 680pF etc) between the FET's are for
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-05/msg00046.html (10,207 bytes)

170. Re: LF: VO1NA opds-32 (score: 1)
Author: [email protected]
Date: Sun, 10 May 2015 21:02:13 -0230 (NDT)
Hi Markus, Thank-you for the signal report and the frequency check. Your zoomed spectrum shows a relatively large drift. Perhaps there are sparks in the back yard again or the driver is misbehaving.
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-05/msg00049.html (10,650 bytes)

171. Re: LF: LF tonite (score: 1)
Author: [email protected]
Date: Thu, 14 May 2015 19:59:31 -0230 (NDT)
Hi Stefan, I tried to copy you last night but didn't realise until awaking this morning that the plug to sound card was not plugged in! If you are QRV tonight, we can try again. Your VLF probe design
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-05/msg00078.html (10,808 bytes)

172. Re: VLF: Joe on DX (score: 1)
Author: [email protected]
Date: Thu, 14 May 2015 23:34:49 -0230 (NDT)
Hi Stefan, 30 watts from an audio amp is stepped up with a 1:4 ferrite xfmr. One end of the secondary is grounded, the other goes to 2 pie coils wound with 3 strands of 0.08mm wire, L~450 mH R(DC)=43
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-05/msg00085.html (11,467 bytes)

173. LF: 630m OP8 (score: 1)
Author: [email protected]
Date: Sun, 17 May 2015 21:37:40 -0230 (NDT)
Dear Group, The TX is QRV at the moment. About 50 watts to the monopole. Reports welcomed! 73 Joe VO1NA
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-05/msg00098.html (9,482 bytes)

174. Re: LF: 630m OP8 (score: 1)
Author: [email protected]
Date: Mon, 18 May 2015 17:20:16 -0230 (NDT)
Hi Iban, Graham, Group. Let's try again tonight! 73 Joe Just a little late Joe ! its 01:15 local this side ..
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-05/msg00102.html (10,114 bytes)

175. Re: LF: 630m OP8 (score: 1)
Author: [email protected]
Date: Tue, 19 May 2015 06:59:44 -0230 (NDT)
Hi Jan, Thanks for the reports. I'll be on again tonight. 73 Joe Surprisingly received VO1NA sigs some on the edge of my noisefloor: 03:31 477 VO1NA de PA3ABK Op8 -31 dB F:5% in Dordrecht 03:27 477 V
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-05/msg00110.html (12,229 bytes)

176. Re: LF: 630m OP8 (score: 1)
Author: [email protected]
Date: Tue, 19 May 2015 22:03:17 -0230 (NDT)
Hi Graham, QRV since sunset and will be on till dawn. Surprisingly, nil on PSKreporter. Perhaps some lossy coax or spurs from the driver? Good Luck! Joe Missed your first pass Joe , then had to close
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-05/msg00124.html (11,488 bytes)

177. Re: LF: 630m OP8 (score: 1)
Author: [email protected]
Date: Wed, 20 May 2015 14:59:30 -0230 (NDT)
Hi Graham, Andy and Iban, Hope the QRN is better tonight so you can copy me Iban. Thanks for the report Andy. Nice strong sigs at your QTH and thanks for the relay, Graham. Good to know I don't have
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-05/msg00144.html (13,243 bytes)

178. Re: AW: LF: 630m OP8 (score: 1)
Author: [email protected]
Date: Thu, 21 May 2015 18:50:40 -0230 (NDT)
Hi Graham and Thanks Joe for the reports. Will be giving it another run. Just warming up the TX as I write. 73 Joe VO1NA
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-05/msg00177.html (10,513 bytes)

179. Re: AW: LF: 630m OP8 (score: 1)
Author: [email protected]
Date: Fri, 22 May 2015 19:03:14 -0230 (NDT)
Hi Markus, Thanks for the report. Its good to hear that the RF crossed the pond and all that land. The TX will be off tonight -- there is lightning in the forecast. 73 and thanks to all who monitored
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-05/msg00184.html (11,284 bytes)

180. LF: Spectrum Lab & VLF (score: 1)
Author: [email protected]
Date: Sun, 24 May 2015 10:31:29 -0230 (NDT)
Dear Group, A QRSS60 detection at 5.2 km is the best DX for yours truly to date. Although there was a detection at 7 km, this was probably via conduction from a nearby mains line. The RX is a DK7FC V
/rsgb_lf_group-archives/html/rsgb_lf_group/2015-05/msg00204.html (11,141 bytes)

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