开云体育This is simple, make several soda water dummy loads.Here is Mine. I made mine 1 to 1 SWR. it is dead flat from 160 thru 2 meters.? Probably Higher, but don't know because don't have equipment any higher. 1500 watts+ into it with mo problems also. Costs Nothing. Made simple, the two wires are 12 ga copper, about 6 inches long.? Open at the far end. Simple center conductor goes to one wire, Braid to the other. Fill jar with water. Measure SWR. It WILL have a SWR.? If the SWR is what ya want youre done. Naturally the impedance will be higher than 50 ohms. Add tiny amounts of baking soda to the water, make sure it is fully mixed, even wait a while to ensure it is completely dissolved. and measure again. the impedance will have dropped. Keep adding till you get what ya want. only do TINY amounts. it is very easy to overshoot what you want. If you do simplay dump out some solution and add plain water to dilute it some. simple... I haven't tested this idea, of making it variable impedance by varying the amount of water, in the jar, or varying the amount the wires are inserted into the solution.? I think it might make it impedance variable? Joe WB9SBD On 2/27/2025 8:26 AM, Greg McCain via
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