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Total 9 documents matching your query.

1. [AMPS] Drake L4B Improvements or suggestions (score: 1): Author: cbd@onaustralia.com.au (c dickson); Date: Thu, 5 Feb 1998 22:09:54 +1100; I just picked up a Drake L4B, stock standard. Does the the panel have any suggestions for improvements or knowledge of any bugs. Thanks Craig D -- FAQ on WWW: http://www.contesting.com/ampfaq.html Su; /archives//html/Amps/1998-02/msg00041.html (7,781 bytes)
2. [AMPS] Drake L4B Improvements or suggestions (score: 1): Author: measures@vc.net (Rich Measures); Date: Mon, 9 Feb 98 10:13:14 -0800; For starters, Craig, it needs high speed switching - so that it will not hotswitch with modern radios. The mod costs about us$60 in parts. cheers Rich... R. L. Measures, 805-386-3734, AG6K -- FAQ on; /archives//html/Amps/1998-02/msg00047.html (8,005 bytes)
3. [AMPS] Drake L4B Improvements or suggestions (score: 1): Author: dick@libelle.com (Dick Flanagan); Date: Mon, 9 Feb 1998 10:22:35 -0800; Is this the kind of switching normally provided by something like the outboard Ameritron QSK-5 or am I confusing it with something else? 73, Dick -- Dick Flanagan W6OLD CFII Minden, Nevada DM09db (So; /archives//html/Amps/1998-02/msg00048.html (8,381 bytes)
4. [AMPS] Drake L4B Improvements or suggestions (score: 1): Author: measures@vc.net (Rich Measures); Date: Tue, 10 Feb 98 01:37:55 -0800; I know zero about this product, Dick. Does it use a high speed vacuum relay or a PIN diode to switch the output?. cheers Rich... R. L. Measures, 805-386-3734, AG6K -- FAQ on WWW: http://www.contesti; /archives//html/Amps/1998-02/msg00051.html (8,400 bytes)
5. [AMPS] Drake L4B Improvements or suggestions (score: 1): Author: dick@libelle.com (Dick Flanagan); Date: Tue, 10 Feb 1998 08:37:46 -0800; PIN diode. See http://www.ameritron.com/other/qsk5.html 73, Dick -- Dick Flanagan W6OLD CFII Minden, Nevada DM09db (South of Reno) Visit http://www.qsl.net/w7di/ -- FAQ on WWW: http://www.contesting.; /archives//html/Amps/1998-02/msg00053.html (8,345 bytes)
6. [AMPS] Drake L4B Improvements or suggestions (score: 1): Author: rakefet@rakefet.com (Vic Rosenthal); Date: Tue, 10 Feb 1998 09:46:10 -0800; The info at this address claims that a vacuum relay can 'barely keep up with' modern QSK transceivers, and a PIN diode system is better for that reason. I can tell you that a vacuum relay --when used; /archives//html/Amps/1998-02/msg00055.html (8,914 bytes)
7. [AMPS] Drake L4B Improvements or suggestions (score: 1): Author: dick@libelle.com (Dick Flanagan); Date: Tue, 10 Feb 1998 09:54:51 -0800; Thanks, Vic. The reason I brought up the Ameritron unit is I recently bought a used one to use with my L-4B and I was curious what the consensus of opinion was regarding the pairing. 73, Dick -- Dick; /archives//html/Amps/1998-02/msg00056.html (9,548 bytes)
8. [AMPS] Drake L4B Improvements or suggestions (score: 1): Author: measures@vc.net (Rich Measures); Date: Tue, 10 Feb 98 19:15:12 -0800; This is true if one does not use some variation of Jenning's recommended speedup circuit. Apparently, Ameritron's engineer did not have enough time to read Jennings' relay catalogue. Folks who live; /archives//html/Amps/1998-02/msg00064.html (9,541 bytes)
9. [AMPS] Drake L4B Improvements or suggestions (score: 1): Author: ggeurts@amp.com (Geurts, Gerard); Date: Wed, 11 Feb 1998 09:13:26 -0000; Let us assume: * 50 % TX/RX duty cycle (i.e. a 'run' station in a contest) * 35 wpm * 50 units per word ('Paris' standard) * 14 relay operations per word (based on 'Paris', using full break-in QSK) *; /archives//html/Amps/1998-02/msg00065.html (8,394 bytes)

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