Jim has posted RTCM version 1.26 to svn. It allows a lower minimum TX buffer length of 480 (60ms). We ran the min setting on a 20 mile Ubiquiti hop and it worked fine. http://svn.ohnosec.org/viewvc/projects/allstar/voter/?root=svn I've posted a procedure to determine RTCM and chan_voter buffer size using voter ping. http://ohnosec.org/drupal/node/195 -- Tim WD6AWP :wq