I always set my tuner first with only the radio into it and at 4 watts. When it is good, increase the scale on the meter and enable the AL-1500Q amp at 4 watts giving me 200 to 400 watts out and tune the amp and then tweek the tuner if necessary. 4 in gives 400 out, 25 in gives 1500 out on some bands - NO I am not going to start tuning at full power.
73, Jim KG0KP -----Original Message----- From: Elecraft [mailto:[email protected]] On Behalf Of Phil Wheeler Sent: Thursday, August 28, 2014 10:14 AM To: [email protected]; Elecraft Reflector Subject: Re: [Elecraft] Tuning your radio and amplifier to your amtenna Good point in the "On the other hand", Jim. I'm not sure the original poster specified KPA500/KAT500 or a 3rd party amp -- and it does make a difference. Phil W7OX On 8/27/14, 10:50 PM, Jim Brown wrote: > On Wed,8/27/2014 9:22 PM, kd7gc wrote: >> I have never heard of anyone suggesting that tuning should begin with >> anything close to 4 watts. I generally go thru 3 or 4 steps, but I >> start with my transceiver set to about 25 or 30 watts output. > > Agreed. My Ten Tec Titans (a pair of triodes) drive with a bit less > than 50W. I have tune settings for each amp for each band on a yellow > sticky next to the amp, so I set those, then hit it with about 25W, > tweak, run drive to see close to 1500, and retune for maximum smoke as > indicated by the SWR/power meter. I tune with dits, so the duty cycle > is 50%, less stress than full power carrier, but gives me correct > tuning for full power. > > On the other hand, if you're tuning an auto tuner like the KAT500, you > want to tune it with drive power only, the amp off. > > 73, Jim K9YC ______________________________________________________________ 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] ______________________________________________________________ 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]
