As I await the arrival of a new tuner rated for 2kW, my current 600-watt tuner is failing miserably at 250 watts on 20 and 40 meters. Bizarre because an old 100W tuner did fine at 100 watts – never a hiccup.
The new tuner will be rated for higher power but I believe the complex (and widely varying) impedences presented to the tuner will stress it as well, especially since I will be operating at 1000 watts.
So far, the antenna series-of-components has been simple: Transceiver-Tuner-15 feet of RG8-4:1 Balun-70-feet of ladder line up to the 80m dipole.
You can read about what this does to the tuner here.
Here’s a diagram of what I’m going to try – in a nutshell, it simply involves adding an additional balun (of a different ratio), selectable via the A/B switch on the tuner and a remote relay on the output of the baluns.
My question is, what type of relay might be suitable for this application at 1000 watts, 10-80 meters?