Which section is that in? I can't find it. I suspect it might just be a case of assigning it its script.
EDIT: Solved the problem. Open your antenna.fpe and replace everything in it with:
;header
desc = antenna
;ai
aiinit = appear1.fpi
aimain = warfarecom\antenna.fpi
aidestroy = disappear1.fpi
;spawn
spawnmax = 0
spawndelay = 0
spawnqty = 0
;orientation
model = antenna.x
offx = 0
offy = 0
offz = 0
rotx = 0
roty = 0
rotz = 0
scale = 100
speed = 2
fixnewy = 0
defaultstatic = 0
materialindex = 3
collisionmode = 1
strength = 0
isimmobile = 1
soundset =
soundset1 =
;visualinfo
textured = antenna_D2.dds
effect = effectbank\bumpent\bumpent.fx
castshadow = 0
;Animationinfo
animmax = 3
anim0 = 0,10
anim1 = 10,75
anim2 = 75,120
And open 'ant_switch.fpe' and replace everything in it with:
;header
desc = Remote Switch
;ai
aiinit = appear1.fpi
aimain = switch.fpi
aidestroy = disappear1.fpi
;AIUsed
ifused = antenna
;orientation
model = switch.x
offx = 0
offy = 0
offz = 0
rotx = 0
roty = 0
rotz = 0
fixnewy = 180
defaultstatic = 0
forwardfacing = 1
defaultheight = 0
materialindex = 3
collisionmode = 1
;visualinfo
;Visualinfo
textured = switch-off_D2.dds
texturealtd = switch-on_D2.dds
;Identity Details
isimmobile = 1
strength = 0
;Animationinfo
animmax = 0
anim0 = 0,0
Then run FPSC cleaner (or just delete all the .bin files in that folder) and restart FPSC, and try again. Place both the switch and the antenna in the level and use the switch to activate and deactivate it.