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Equipment / Re: RF circuit help....
« on: June 16, 2020, 1641 UTC »
My NanoVNA finally arrived. As expected, the diplexer chops down on the 200-400Mhz sensitivity. The top scan is my DJ-130, the middle scan is the UHF (~800-900 MHz) yagi, and the bottom is the combined feed from the diplexer. What's curious is that the amount of attenuation around 300 MHz doesn't appear too massive (within a log at least) yet i've lost a 380 MHz system. Still playing around with it.....
