Interestingly, 50 and 75-ohm BNC connectors have the same pin/shell
dimensions and properly couple together. For more information go to
_http://www.cliftonlaboratories.com/august_2007.htm_
(http://www.cliftonlaboratories.com/august_2007.htm) and scroll down to the
02 August 2007 entry. There is a
link to the Amphenol site for specifics about the connectors.
I am planning to use an Extron video distribution amplifier for standard
frequency distribution. The 75-ohm connectors will be OK. These amplifiers
feed multiple 75-ohm outputs from a "zero-impedance" source by inserting a
75-ohm resistor in each leg. Some folks using these for standard
frequency distribution change the resistors to 50-ohms.
Bruce, KG6OJI
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