On 14 May 2013 at 14:51, Todd, KA1KAQ wrote: > But the "impedance bump" isn't going to mean "diddly" at "HF" at that > "power level" anyhow, as mentioned by someone else earlier. Likely had > "nothing to do" with Collins' "choice" to go with the RCA. I agree. I am convinced it was to make it easier for "quick disconnect". Ken W7EKB