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301. LF: JT4A simple guide? (score: 1)
Author: Roger Lapthorn <[email protected]>
Date: Sat, 23 Jan 2010 13:48:49 +0000
Having looked on the WSJT website there is little (no?)  reference to JT4A in the help files. I assume it is similar to modes like JT6M which I have managed to receive in the past on 50MHz but never
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-01/msg00349.html (10,424 bytes)

302. Re: LF: Anti Social ssb (score: 1)
Author: Roger Lapthorn <[email protected]>
Date: Mon, 4 Jan 2010 10:35:21 +0000
This is fantastic news for the Appliance Operator. Follow a basic set up guide then let the unattended machines, all 200 of them growling away at each other at 2 minute intervals. Operator check dat
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-01/msg00364.html (16,418 bytes)

303. Re: LF: JT4A simple guide? (score: 1)
Author: Roger Lapthorn <[email protected]>
Date: Sat, 23 Jan 2010 19:17:10 +0000
I still see these data signals as a waste of time since had the carrier been keyed I could read them 100% without having to wait for the right circumstance to get a decode, no need for level 2 demod
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-01/msg00384.html (24,960 bytes)

304. Re: LF: WSPR stations in central Europe - please listen through the night (score: 1)
Author: Roger Lapthorn <[email protected]>
Date: Wed, 20 Jan 2010 21:00:26 +0000
Roger Lapthorn wrote: If you have a well equipped, sensitive, 500kHz WSPR station in Poland, Sweden, Austria, Czech Republic or at a similar distance from S.England please leave your RX running for
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-01/msg00386.html (13,453 bytes)

305. Re: LF: G3ZJO_OK (score: 1)
Author: Roger Lapthorn <[email protected]>
Date: Wed, 20 Jan 2010 22:48:22 +0000
Yeh ! Congratulations Roger.   Lubos you have the Water Pistol, can you now RX a tiny Dripping Tap, my QRPp 200uW ERP is on..   73   Eddie G3ZJO   --Original Message-- From: owner-rsgb_lf_group@blac
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-01/msg00390.html (17,907 bytes)

306. Re: LF: JT4A simple guide? (score: 1)
Author: Roger Lapthorn <[email protected]>
Date: Sat, 23 Jan 2010 20:15:44 +0000
Obviously not reading recent postings about no decodes from others although the signals are visible, like I said these signals are not onljy visible with me but audible so why complicate matters, ju
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-01/msg00402.html (29,690 bytes)

307. Re: LF: 500khz WSPR drift (score: 1)
Author: Roger Lapthorn <[email protected]>
Date: Thu, 14 Jan 2010 13:46:01 +0000
  Just an example: The master oscillator in the IC746 is at 30MHz, so transverting from 30.5MHz would be an option in this case.  But one could just as easily divide this by 2 first and transvert fro
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-01/msg00420.html (16,472 bytes)

308. Re: LF: WSPR stations in central Europe - please listen through the night (score: 1)
Author: Roger Lapthorn <[email protected]>
Date: Wed, 20 Jan 2010 12:34:22 +0000
Hello Roger! I didn´t see your QRPP signal, when we tried WSPR some days ago. So... I packed my receiver + computer to a car and I moved them on my portable QTH outside of town today morning. I have
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-01/msg00422.html (13,746 bytes)

309. Re: LF: Link budget calculation or estimation of dist for given power on WSPR (score: 1)
Author: Roger Lapthorn <[email protected]>
Date: Sun, 10 Jan 2010 19:02:38 +0000
 Dear LF, Has anyone any ideas or suggestions on a resource for calculation of a link budget for WSPR over a set distance? As it seems I can get up to GM4SLV reasonably consistently on my current an
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-01/msg00471.html (16,745 bytes)

310. Re: LF: WSPR_test (score: 1)
Author: Roger Lapthorn <[email protected]>
Date: Fri, 15 Jan 2010 11:31:06 +0000
Hello Roger, LF! Well, I am going to be ready for your signal whole this evening and night. I expect, you will be on frequency near 503.950kHz. It would be very interesting, becouse I have got two r
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-01/msg00492.html (11,771 bytes)

311. LF: 500kHz WSPR overnight (score: 1)
Author: Roger Lapthorn <[email protected]>
Date: Sat, 9 Jan 2010 23:54:24 +0000
My 1mW ERP WSPR beacon will be active at 35% TX overnight. Looking especially for reports from >1000kms from JO02dg, so would welcome "good ears" stations taking a careful look around the middle of t
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-01/msg00512.html (9,702 bytes)

312. Re: LF: WE2XGR WSPR operation (score: 1)
Author: Roger Lapthorn <[email protected]>
Date: Mon, 18 Jan 2010 10:42:21 +0000
Checking the database, shows I also logged WE2XGR/2 several times overnight: 2010-01-18 06:38   WE2XGR/2   0.511550   -27   0   FN31is   50   G3XBM   JO02dg   5450   51   2010-01-18 05:44   WE2XGR/2 
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-01/msg00524.html (22,110 bytes)

313. Re: LF: Link budget calculation or estimation of dist for given power on WSPR (score: 1)
Author: Roger Lapthorn <[email protected]>
Date: Sun, 10 Jan 2010 19:53:23 +0000
Had u been on QRS CW he probably would have copied u since he saw ur trace. I often see traces that do not decode for some time but had the trace been keyed it could have been identified. I have bee
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-01/msg00564.html (21,570 bytes)

314. LF: M0BMU - any chance of some new ERP estimates please? (score: 1)
Author: Roger Lapthorn <[email protected]>
Date: Thu, 21 Jan 2010 17:04:01 +0000
Dear Jim, Following the discussion on the LF reflector in the last 24 hours, I wonder if we could use your experience and expertise to estimate the most recent ERP levels for G4JNT, G3ZJO and G3XBM p
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-01/msg00576.html (10,734 bytes)

315. Re: LF: WSPR Reports (score: 1)
Author: Roger Lapthorn <[email protected]>
Date: Wed, 27 Jan 2010 21:05:05 +0000
His reports for my 1mW ERP have always been huge too.  I was thinking there was some particular magic with the skip distance, but others in JN18/JN19 give me more modest S/N reports. 73s Roger G3XBM
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-01/msg00586.html (15,682 bytes)

316. Re: LF: Dirty carrier (score: 1)
Author: Roger Lapthorn <[email protected]>
Date: Fri, 15 Jan 2010 17:19:05 +0000
Some one has switched a dirty carrier on 503.5 full of mains hum. Some ones WSPR gone wrong??   G3KEV   -- http://g3xbm-qrp.blogspot.com/ http://www.g3xbm.co.uk http://www.youtube.com/user/G3XBM G3X
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-01/msg00612.html (11,184 bytes)

317. Re: LF: WSPR_500 (score: 1)
Author: Roger Lapthorn <[email protected]>
Date: Fri, 15 Jan 2010 09:36:22 +0000
Hello OM´s! I had improved something on my pre-amplifier at night and than I watched WSPR station around sunrise in OK: 0458 -20 -1.3   0.503943  1 LA3EQ JO28 23 0500 -26  0.4   0.503875  0 G4JNT IO
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-01/msg00619.html (13,780 bytes)

318. Re: LF: JT4A simple guide? (score: 1)
Author: Roger Lapthorn <[email protected]>
Date: Sat, 23 Jan 2010 21:20:46 +0000
There cannot be a time when JT4 or WSPR will be received and not QRS because the trace is always visible long before a data decode. There has never been a case of an INVISIBLE trace and a data decod
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-01/msg00621.html (34,110 bytes)

319. Re: LF: WE2XGR WSPR operation (score: 1)
Author: Roger Lapthorn <[email protected]>
Date: Mon, 18 Jan 2010 10:00:09 +0000
WE2XGR/6 was a consistent signal here all night long until 0758am local time. At best it reached -14dB with me using just the FT817 and the 5m vertical. 73s Roger G3XBM 2010/1/18 <[email protected]>
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-01/msg00632.html (13,992 bytes)

320. Re: LF: 500khz WSPR drift (score: 1)
Author: Roger Lapthorn <[email protected]>
Date: Thu, 14 Jan 2010 12:08:01 +0000
Thanks all the comments. Gary - G4WGT. 2010/1/13 James Moritz <[email protected]> Dear LF Group, ...The perils of having a 50MHz -> 500kHz transverter! 3.5MHz would be a better IF frequenc
/rsgb_lf_group-archives/html/rsgb_lf_group/2010-01/msg00636.html (13,762 bytes)


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