GPS/telephone/two-way radio roof antenna, function - GF82.70-P-4112-04A

Models 140 except 140.063/07, 202, 210, 220 

CTEL antenna (A2/49a1) 

The received signals are transmitted to the emergency call system control module (TELE AID) (A35/8)  via a coaxial antenna cable; transmitting is accomplished vice versa.

GPS antenna (A2/49a2) 

The received satellite signals are amplified by the integrated antenna amplifier. The antenna amplifier is supplied with power by the coaxial antenna cable (phantom supply).

The amplified signals are transmitted to the emergency call system control module (TELE AID) (A35/8)  via a coaxial antenna cable.

The antenna serves only for reception  of GPS signals, no signals are transmitted.

Two-way radio antenna (A2/49a3) 

The received signals are transmitted to the two-way radio (A49)  via a coaxial cable, transmitting is accomplished vice versa.