7
5. Routing and terminating coaxial cable(s)
If heat shrink tubes are to be used, slide onto antenna cable tails prior to connecting extension cables –
it is recommended that these are heat shrunk only after tests have been satisfactorily completed. Note:
It is not recommended to heat shrink over Fakra type connectors. Connect extension coaxial cables to
antenna and route to equipment. Fit correct coaxial connector or adapter to cables as required.
6. Commission and test
Check GPS/GNSS cable (where applicable):
• Check the GPS/GNSS cable(s) with DC to measure high resistance.
• Connect the GPS / GNSS cable(s) to the GPS/ GNSS receiver(s) and check for satellite acquisition.
Check comms cable(s):
• Carry out VSWR check, should measure <2.5:1 in transmit band (antenna type dependent).
• Connect Cellular/ LTE & WLAN cables as applicable or stow unused pigtails.
When routing the cables take care to avoid running them adjacent to any existing vehicle wiring or
fouling any moving vehicle components. The cables must not be routed in front of any airbag device.
5
6
Check that antenna is firmly secure to
mounting surface and that sealing boot edges
have splayed out into surface to form a seal
Assemble shakeproof washer
and nut tighten to 5Nm.
