Originally Posted by
Johnnysplits
They are for aircraft...period.
Not true.
From Futaba's description of the R614FS (which is a surface receiver for the 4PKS/4PKSR). Only one antenna is external.
The R614FS (FUTL7635) is compact, with a high-voltage design, fail-safe, DAD (Dual Antenna Diversity) and the push-button ease of the Easy-Link™.
http://www.futabarc.com/systems/futk...ksr/index.html