Ian Jackson wrote:

...
What about the loss in the balun? You need to decide if the loss in the
balun is less than that you would get if you simply used the 75 ohm coax
direct. And ask yourself 'In my application, why would 75 ohm be more
lossy?' Also, with similar physical dimensions, construction etc, 75 ohm
coax is slightly less lossy than 50 ohm (current is less, so 'I squared
R' loss is less).

Simple solution, I trust my S-meter!

Regards,
JS

--
It is like a nightmare where the public servants are the people which
the police are supposed to protect us from!