On Mar 12, 1:48*pm, "Howard James"
wrote:
I'm building a 2 metre Rx with an IF of 10.7 MHz. It will be used for FM. I
have three crystal filters with the following bandwidths: 15 KHz; +/- 6 KHz
and +/- 3.75 KHz. Which one should I use?
Thanks. Howard.

Hey OT:
In ITU region 1 you use +/- 3.75Khz. If you are across the pond then
use +/- 6Khz.
Since they spell metre that way across the pond I think you are going
to be using +/- 6Khz

73 OT
de n8zu