On 2018-05-09 6:48 PM, Jim Brown wrote: >
It's certainly OK to HOOK UP the ALC cable, but it's VERY BAD PRACTICE to DEPEND on ALC to set power out. Doing so is a recipe for terrible clicks and splatter. ALWAYS set power using the output power knob on the transceiver. The ONLY virtue of ALC is to protect the power amp from an operator screw-up, or from something going wrong in the antenna system.
That's the point. The ALC cable protects the KPA-500 when the operator "spaces" and leaves the exciter power control at full power (100+ Watt) level. > It takes about 25-30W to drive a KPA500 to full power. Therein lies the case for a 4-6 dB attenuator inside the amplifier. The attenuator can be left in-line and the exciter can be operated at its normal (100 W) output level without concern for overdrive and/or damage. 73, ... Joe, W4TV ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
