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1. LF: Re: New Years wish (score: 1)
Author: "Andrew Talbot" <>
Date: Sun, 31 Dec 2000 13:58:19 +0100
The EVM56002 is obsolete anyway, they are like gold dust now !! Motorola do an updated one with the 56300 (??) but it is very expensive and will need EVM software to be modified. Is 16 bits essential
/rsgb_lf_group-archives/html/rsgb_lf_group/2000-12/msg00015.html (9,405 bytes)

2. LF: Re: Argo beta 1 released (score: 1)
Author: "Andrew Talbot" <>
Date: Sat, 30 Dec 2000 15:21:47 +0100
Downloaded ARGO, installed and tested 100% OK. Decodes my 10Hz wide SMT Hell beacon signal on the " 10s " dot setting. A few more settings would be useful how about binary increments of dot length fr
/rsgb_lf_group-archives/html/rsgb_lf_group/2000-12/msg00041.html (8,917 bytes)

3. LF: Re: QRSS question (score: 1)
Author: "Andrew Talbot" <>
Date: Thu, 28 Dec 2000 16:13:18 +0100
How about letting it go slow enough for a 30s dot or a resolution bandwidth of 0.01Hz - as far as I know the only soundcard software that could get anywhere near this and do proper SLOWCW was Spectra
/rsgb_lf_group-archives/html/rsgb_lf_group/2000-12/msg00076.html (9,002 bytes)

4. LF: Re: BPSK Tests (score: 1)
Author: "Andrew Talbot" <>
Date: Thu, 28 Dec 2000 12:00:03 +0100
Yes, it was me for about an hour. Just another soak test as I've finally put IRF452 devices into the PA to give that extra bit of reliability now. As the garden has dried out the antenna tuning has c
/rsgb_lf_group-archives/html/rsgb_lf_group/2000-12/msg00086.html (9,423 bytes)

5. LF: Re: Off topic - Soundblaster programming (score: 1)
Author: "Andrew Talbot" <>
Date: Wed, 27 Dec 2000 00:03:45 +0100
I don't know about the mic input, I woulf have thought an ALC action on this input was rather dependant on the particular machine / soundcard in use, but it certainly does not apply to the line input
/rsgb_lf_group-archives/html/rsgb_lf_group/2000-12/msg00114.html (9,762 bytes)

6. LF: Guard circuit - impressive performance (score: 1)
Author: "Andrew Talbot" <>
Date: Mon, 25 Dec 2000 17:58:27 +0100
Well ............. Just installed a version of the Decca guard circuit on the 600W PA, and its performance is seriously impressive ! Still using the cheap and nasty IRF840 FETs with just a minimum of
/rsgb_lf_group-archives/html/rsgb_lf_group/2000-12/msg00127.html (8,636 bytes)

7. LF: Re: search for old slowcw (score: 1)
Author: "Andrew Talbot" <>
Date: Sat, 23 Dec 2000 15:44:38 +0100
I have now done a quick fix on SLOWCW to use LPT1 for keying rather than a COM port. Anyone wanting this facility please contact me directly at this EMail address for a copy. Andy G4JNT
/rsgb_lf_group-archives/html/rsgb_lf_group/2000-12/msg00162.html (7,765 bytes)

8. LF: Re: search for old slowcw (score: 1)
Author: "Andrew Talbot" <>
Date: Sat, 23 Dec 2000 15:25:26 +0100
I wrote the origianl SLOWCW prog, but all versions of that now use the serial port. However, if you want a version for the parallel port I'll modify the software now and let you have it in a short wh
/rsgb_lf_group-archives/html/rsgb_lf_group/2000-12/msg00163.html (9,268 bytes)

9. LF: Re: Re: BPSK signal on 137.79 (score: 1)
Author: "Andrew Talbot" <>
Date: Sat, 09 Dec 2000 20:00:24 +0100
About 600 Watts, and judging by the (cold) heatsink temp with a small fan could be be tempted to try increasing power to destruction - under controlled conditions of course ! This PA does not lend it
/rsgb_lf_group-archives/html/rsgb_lf_group/2000-12/msg00388.html (8,373 bytes)

10. LF: Re: Re:amplifiers (score: 1)
Author: "Andrew Talbot" <>
Date: Sat, 09 Dec 2000 18:35:48 +0100
About 95% correct I reckon Jim, I think the overlap betwen turn off and on is a function of the FET itself, and turn off will always be faster that turn on even for an infinietly steep drive waveform
/rsgb_lf_group-archives/html/rsgb_lf_group/2000-12/msg00393.html (9,710 bytes)

11. LF: Date: Sun, 31 Dec 2000 23:41:04 -0000 (score: 1)
Author: "Andrew Talbot" <>
Date: Sun, 31 Dec 2000 23:49:53 +0000
Hope the attached .JPG image is passed over this reflector, especially after the recent comment about file sizes, but at only 10k size, we can hope ...... This waterfall plot is a recording of VE1ZZ'
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00000.html (9,266 bytes)

12. LF: G3AQC and M0BMU Frequency calibration (score: 1)
Author: "Andrew Talbot" <>
Date: Thu, 25 Jan 2001 00:48:59 +0100
Jim's frequency is 135923.99 Hz and has remained absolutely stable to within the 0.01Hz readout resolution since measurement started at 1945z. Occasionally I read it as ~.98 so the actual freq may be
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00234.html (9,219 bytes)

13. LF: Re: Re: Friday Night (score: 1)
Author: "Andrew Talbot" <>
Date: Sun, 21 Jan 2001 10:16:05 +0100
A bit belated, based on what is coming though now, but here is a section of Last night's (Friday / Saturday) recording in file VA3LK04D.GIF attached showing the time from just after 0600z to 0850z in
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00393.html (8,070 bytes)

14. LF: Re: Large flare in progress...... (score: 1)
Author: "Andrew Talbot" <>
Date: Sun, 21 Jan 2001 09:25:55 +0100
Excellent copy of Larry's signal throughout the night. I woke up at 0600z and the screen was showing a complete 'CW' message. Hit the save function and went back to bed. When the signal has faded eno
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00396.html (8,842 bytes)

15. LF: Re: Large flare in progress...... (score: 1)
Author: "Andrew Talbot" <>
Date: Sun, 21 Jan 2001 01:23:02 +0100
Quite the opposite at the moment. I've seen absolutely nothing of you so far and am generating a bigger and bigger file of narrowband Gaussian noise. Even the other lines are not as visible Andy G4JN
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00402.html (8,714 bytes)

16. LF: Re: Re: Loading Coils (score: 1)
Author: "Andrew Talbot" <>
Date: Sat, 20 Jan 2001 22:24:32 +0100
From G3LDO From this it would appear that vector potential is a mathematical device to simplify electromagnetic calculations rather than an entity generated by the loading coil itself. Exactly ! Only
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00407.html (9,919 bytes)

17. LF: Re: Re: Friday Night (score: 1)
Author: "Andrew Talbot" <>
Date: Sat, 20 Jan 2001 21:49:48 +0100
No need to move for now, I'll keep with the 3.9Hz sampling and post process. Must sort out that sprog problem at the lowest rate. Can't look at the plot at the moment, its on the other machine which
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00408.html (9,357 bytes)

18. LF: Re: QRSSSS on 137.7894 (score: 1)
Author: "Andrew Talbot" <>
Date: Sat, 20 Jan 2001 21:41:13 +0100
Looking at Jim's plot that's the same bit I got, so the propagation really did peak just then for both of us. Andy G4JNT
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00409.html (7,994 bytes)

19. LF: Friday Night (score: 1)
Author: "Andrew Talbot" <>
Date: Sat, 20 Jan 2001 10:08:19 +0100
Larry - I'm definitely getting you now at CF - 0.60 Hz. Only managed to positively identify you at 2300z - my double-decimation software for the EVM generates a spurious line right where you were at
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-01/msg00424.html (8,455 bytes)

20. LF: Re: SMT-Hell fm G4JNT (score: 1)
Author: "Andrew Talbot" <>
Date: Sun, 25 Feb 2001 19:00:23 +0100
Going to 0.5Hz wide now 1740z Andy Andy.. Can you please go more narrow, have a good copy 869.5 / 871.5Hz hope to have a full call before i leave for work tomorrow :-) 73 de Ko, NL9222
/rsgb_lf_group-archives/html/rsgb_lf_group/2001-02/msg00056.html (8,087 bytes)


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