Thanks for the input guys!
If I'm looking for around 70dB of isolation, it looks like I'll still need around 20 ft of vertical seperation, so it looks like a duplexer it is.
As far as radios, I've been looking at either the GTX or Maxtrac. Both seem to be readily available at decent prices, and the GTX looks like it doesn't need much, if any, hardware modification. The ability to do simplex looks like a plus too.
I have to admit to thinking about going 25KHz uncoordinated. It's not like the band is exactly swamped
![:roll:](./images/smilies/icon_rolleyes.gif)
, but the ARRL bandplan doesn't leave much room for 25MHz splits without playing in the weak signal portions of the plan (Heck, the whole band is only 26MHz wide.). What ranges / pairs are people who are running 25MHz spacing typically using?
Will the GTX or Maxtrac support the 12KHz split "out of the box" or would that mean filter or other major changes?
Thanks again!