- posted 10 years ago
I bought too short of a driveway-gate exit wand (GTO FM139 = 50 feet); I
need 150 feet.
Nobody told me (so I'm saying it here), one really needs about 150 feet if
they want the driveway gate to be open by the time the moving mass of metal
(i.e., automobile) reaches the gate. Lesson learned.
Researching the web, it appears GTO sells three wands:
FM139 = 50 feet wired (about $180)
- FM140 = 100 feet wired (about $200)
- FM141 = 150 feet wired (about $225)
The instructions say you can not splice additional lengths
Calling technical support at 800-543-4283, they say there is
no difference between the wands or the wire other than the length BUT if I
splice in a wire, it won't work.
The technical support guy was very helpful. He said the reason it won't
work is that the "sensitivity of the magnetic field" changes with the
I don't understand why (if I make a good splice) but maybe there is
something about magnetic fields I don't understand that you can elucidate
for me? The wire is 5 conductor 16awg multi-strand shielded.
What is it about a splice that destroys the magnetic field?