User`s manual

CLARION M10 SERIES STRUCTURE
M10 SERIES USER’S MANUAL PAGE 13
2.3.8 ANTENNA RECOGNITION (ANTENNA SENSE CIRCUIT)
M10 uses a standard SMA connector for the attachment of external
antennas. Although there is a standard SMA connector only
Clarion approved antennas will work due to the Antenna Sense
Circuit.
Antenna Sense Circuit is an electrical verification that the
attached antenna is FCC approved for use with the M10. If another
antenna is attached the M10 will not transmit.
IMPORTANT
Antenna Sense Circuit activates only at POWER UP
The antenna sense circuit electronically senses the attached antenna
when the M10 is first turned on. If an antenna is attached after the
M10 has already powered up the antenna will not be recognized.
You must switch the M10 off and back on to activate the antenna.
WARNING! The external antenna port outputs dc voltage up
to +5 Volts for antenna recognition. If using measuring
equipment, please check allowed dc input voltage of the
equipment.
!