Greetings,
In order to get a feel for the quality of my SMA-BNC adapter I decided to calibrate with the supplied SMA references then measure my DIY BNC 50 Ohm load through the adapter. Attached are the results which show a return loss of 53dB, VSWR 1.005:1 for both 148 and 450 MHz. The RL at 890 is 29 dB/1.07:1. The results are attached. My cheap adapter is better than I expected.
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Enjoy!
Tom
VA7TA
