Jerry Flanders wrote:

Most amps in common use provide a negative-going ALC voltage. And most rigs in common use are compatible with this. The K3, however, requires a positive-going voltage.

According to the K3 FAQ at http://www.elecraft.com/K3/K3FAQ.htm#SignalArchitecture , " Once ALC is working to our satisfaction, we'll provide simple interfacing information that will allow the use of negative control voltages (probably a resistive divider pulled up to a positive supply, or at most an op-amp circuit)."

Jerry,

The ALC function is still disabled, but I plan to turn it on and provide the interface details by the end of this week. Would you like to test the implementation prior to general release?

73,
Wayne
N6KR

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http://www.elecraft.com

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