Every amp that I use I would overdrive with the Elecraft set at 100 watts. I am not familiar with the Quadra, I typically adjust the PWR (power output) control to the desired wattage and have not had an issue with any that that I have used. I see a lot of talk about using ALC on the SPE Expert amp list. I have not used this brand and do not why ALC appears to be recommend for them. I have not connected an ALC cable in decades.

John KK9A


Joe Subich, W4TV wrote:

 > Is it necessary?

Yes.  The Quadra produces is rated 1000 W output with approximately
60W drive.  The K3 will overdrive it resulting in splatter/IMD and
potential damage to the transistors.

73,

    ... Joe, W4TV


On 2020-07-16 7:25 PM, Dean L wrote:
I'm working on a Yaesu VL1000 for a friend and wondering if anybody's had
experience setting up ALC with the K3 and the VL1000?
Is it necessary?
I'm not much of a QRO guy as you can probably tell.

Thanks in advance for your help 73

Dean K2WW

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