"Dave" wrote in message
...

"Ken" wrote in message
...
I need to make some field antenna cables and connectors using RG-174/U
cable. If for for reasons of convenience and cost I use metal RCA
connectors, with there be a material difference in insertion loss?


there will probably be some impedance mismatch but in most cases the extra
loss will probably be minimal.

Mismatch between what and what? Neither the UHF or RCA or constant Z
connectors to begin with. The antenna is likely not 50 Ohms, at least across
any bandwidth, the rig is probably not 50 Ohms.

Dale W4OP