[BC] Isocoupler for UBNT radios?

[Edwin Bukont]

Trying to put together an equipment list and budget to move one channel of audio, in both directions, using Ubiquiti.
 
I realize I probably have to go with a default stereo codec such as Bric, TieLine, Barix.  I actually only need one channel.
 
I am going to leave it probably to Comsearch or someone to find a useful channel, if necessary.  Otherwise, I am trying for the 900MHz range.
 
What I cannot seem to find is an appropriate isocoupler to go between the transmitter building and the tower mounted equipment.  Not getting a response from Ubiquiti either.
 
Any suggestions?
 
Thanks

Edwin Bukont CTS, CSRE/DRB, CBNT 
V- 240.417.2475 (DC/Baltimore)
V- 615-357-7390 (Nashville)