Dave NR1DX Is looking for REAL"50 ohm" coax Regarding 50 ohm coax: Even Mil spec cable has a +/- 2 range, as is shown in this table I stumbled on: https://disti-assets.s3.amazonaws.com/cdmelectronics/files/datasheets/4697.pdf Interesting read. Look at Mil C17/74............ is RG-213 +/- 2 ohms tolerance. Just my $.02 on the subject 73 K9WN Jake