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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*LF\:\s+Linear\s+amplifiers\s+\,\s+MSK\,\s+and\s+500kHz\s*$/: 10 ]

Total 10 documents matching your query.

1. LF: Linear amplifiers , MSK, and 500kHz (score: 1)
Author: Andy <[email protected]>
Date: Tue, 23 Nov 2004 14:20:36 +0100
Has anyone got anywhere with developing soundcard based MSK ? Surely that is the next obvious move on LF where switch mode PAs rule and a linear PA isn't a realistic option for high powers, knocking
/rsgb_lf_group-archives/html/rsgb_lf_group/2004-11/msg00212.html (9,740 bytes)

2. Re: LF: Linear amplifiers , MSK, and 500kHz (score: 1)
Author: Bill de Carle <[email protected]>
Date: Tue, 23 Nov 2004 08:47:47 -0500
At 01:17 PM 11/23/2004 -0000, you wrote: Has anyone got anywhere with developing soundcard based MSK ? Surely that is the next obvious move on LF where switch mode PAs rule and a linear PA isn't a re
/rsgb_lf_group-archives/html/rsgb_lf_group/2004-11/msg00213.html (10,581 bytes)

3. Re: LF: Linear amplifiers , MSK, and 500kHz (score: 1)
Author: "John Andrews" <[email protected]>
Date: Tue, 23 Nov 2004 09:12:32 -0500
Bill, et al: I gave up on it. But if you do go back to it, I'll be happy to participate. There are probably enough of us who have the necessary hardware to do some real world tests. And back to Mike
/rsgb_lf_group-archives/html/rsgb_lf_group/2004-11/msg00214.html (9,914 bytes)

4. Re: LF: Linear amplifiers , MSK, and 500kHz (score: 1)
Author: [email protected]
Date: Tue, 23 Nov 2004 09:28:59 EST
/rsgb_lf_group-archives/html/rsgb_lf_group/2004-11/msg00215.html (10,093 bytes)

5. Re: LF: Linear amplifiers , MSK, and 500kHz (score: 1)
Author: [email protected]
Date: Tue, 23 Nov 2004 12:21:58 EST
Greetings all, I tried writing an MSK decoder, re-using parts of the PSK31/PSK08 decoder, but like Bill didn't get it working properly. Furthermore, at that time I was happy with the performance of P
/rsgb_lf_group-archives/html/rsgb_lf_group/2004-11/msg00220.html (10,252 bytes)

6. Re: LF: Linear amplifiers , MSK, and 500kHz (score: 1)
Author: Alberto di Bene <[email protected]>
Date: Tue, 23 Nov 2004 18:33:41 +0100
I was playing with the idea (just the idea...) of trying COFDM on LF. I have postponed any further work on this to next year for lack of time, but I am wondering if anybody has words of wisdom on thi
/rsgb_lf_group-archives/html/rsgb_lf_group/2004-11/msg00221.html (10,246 bytes)

7. RE: LF: Linear amplifiers , MSK, and 500kHz (score: 1)
Author: "Stewart Nelson" <[email protected]>
Date: Tue, 23 Nov 2004 11:19:24 -0800
Hi Alberto, One possible problem is that the ratio of peak to average power is very high. For example, if you had 64 carriers of one watt each, the average power would be 64 watts, but you'd need (in
/rsgb_lf_group-archives/html/rsgb_lf_group/2004-11/msg00222.html (11,636 bytes)

8. Re: LF: Linear amplifiers , MSK, and 500kHz (score: 1)
Author: [email protected]
Date: Wed, 24 Nov 2004 12:57:15 EST
Hi Alberto, Will one of the big "pro's" of COFDM -its immunity to multipath and "reflections"- really so important on LF with a very low symbol rate ? - well this is just an initial thought, I don't
/rsgb_lf_group-archives/html/rsgb_lf_group/2004-11/msg00226.html (10,142 bytes)

9. Re: LF: Linear amplifiers , MSK, and 500kHz (score: 1)
Author: "Johan Bodin" <[email protected]>
Date: Thu, 25 Nov 2004 07:48:27 -0100
Wolf, I tried writing an MSK decoder Did you try the Massey-Hodgart MSK decoder? 73 Johan SM6LKM
/rsgb_lf_group-archives/html/rsgb_lf_group/2004-11/msg00236.html (9,849 bytes)

10. Re: LF: Linear amplifiers , MSK, and 500kHz (score: 1)
Author: [email protected]
Date: Thu, 25 Nov 2004 16:56:10 EST
Hi Johan, To be honest I didn't know about this novel decoder principle, but a quick look lead to the conclusion that the printer at the office will get something to do on friday ! Thanks for the poi
/rsgb_lf_group-archives/html/rsgb_lf_group/2004-11/msg00238.html (9,157 bytes)


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