RF-Microwave sells the Anaren H100NA20X4. It's the one I used. There is a picture of it below. You have to grind the flange down about 1mm each side to fit good. It's $38 as opposed to $350 from "them other guys". You will have to increase rf offset in the Configure screen to make up for the extra 16db of attenuation. You can fine tune it if you have a transmitter that you KNOW is putting out , let's say - exactly 75 watts. I just looked - my offset in/out setting is 16.24db. It reads the same as the 8935 on any frequency.
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