Electronics > RF, Microwave, Ham Radio

15m long RG-213 with a notch at 450 MHz

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--- Quote from: biastee on January 28, 2022, 06:02:10 am ---I don't want to go to the trouble of changing to another connector type, especially one which I don't have a cal-kit for, when the available evidences do NOT point to the BNC connector:
1. I have other cables using the same BNC connector model without issue, including the one which I posted in reply #8
2. Telegartner has been selling this BNC connector model for decades and any problem would have surfaced by now

--- End quote ---
Unless it is a one-off problem with your particular connector, but I doubt it. The Return-Loss plot should show a large bump where the Transmission has a dip if it was reflective and at the connector end. Could still be a bad spot causing reflection in the middle of the cable, hidden by the loss of the cable from the S11 or S22 plot, but more likely something lossy in the cable or dielectric itself.


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