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1. [AMPS] Amp keying (was Bias for SB-220) (score: 1): Author: Dick Green" <dick.green@valley.net (Dick Green); Date: Wed, 2 Jun 1999 12:14:23 -0400; derived bit That can be arranged easily with a number of modern amateur transceivers and an electronic bias switch like Rich's. Suitable rigs assert a TX signal several milliseconds before allowing; /archives//html/Amps/1999-06/msg00053.html (14,006 bytes)
2. [AMPS] Amp keying (was Bias for SB-220) (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Wed, 02 Jun 1999 14:10:34 -0400; More than enough. Scott, K9MA, has designed a vacuum relay QSK system that takes advantage of the fact that the TS-930 turns on a +12VDC line 2ms before RF output. With appropriate current-limited po; /archives//html/Amps/1999-06/msg00055.html (10,350 bytes)

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