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Running RG6 for a scanner and SDR. I know not the best. Using a 75ohm splitter, Channel Plus 5MHz-1000MHz, between a TRX2 and SDR's. When I connect the scanner and SDR the signal on the SDR drops by half or more. 100% to less than 50 to zero. Checked cables with a meter and no shorts.
Should I read 50 ohms through the splitter? I'm getting .1 or zero.

Thoughts?