SurvCE2.58 radio connection

I am having problems keeping a strong radio connection with my Topcon 9000 robot and FC-2500 dc with SurvCE 2.58 loaded. The radio connection works better with the Top Surv software but find it is lacking versus Carlson.
Carlson Software Discussion Group
http://update3.carlsonsw.com/forum/
http://update3.carlsonsw.com/forum/viewtopic.php?f=15&t=3883