In article , "Pete KE9OA" wrote:
As long as the source impedance of your microphone is lower than the load
impedance of your 897's mic input, you are fine. The impedance is close
enough anyway.

Its more about output level, relating to standard levels at various Z's.
A 100 ohm mic will have less output than a 1k. I really can't think of any
reason Z would matter, except a low Z mic would tend to have less RF pickup,
but maybe not.


greg



"marc" wrote in message
oups.com...
Simple enough. Thanks

On Dec 26, 2:54 pm, Dave wrote:
marc wrote:
I've just bought a nominal 150 Ohm Z Shure dynamic mic & I want to use
it with my FT-897, which expects a minimum 200 Ohm Z. Is there a good
impedance matching circuit out there that I could build? Do I need to?

Thanks.NOPE!

Nope!