CALAMP WIRELESS NETWORKS INC. 1409123000 ユーザーズマニュアル
PRODUCT OVERVIEW
001-9193-001 Version 2
Page 11 of 52
Sentry 4G
TM
User
Manual
2.6 Antenna Options
Antennas are available for Sentry 4G routers installations from CalAmp Corp.
2.6.1
4G Transmit/Receive Antennas (MAIN-AUX)
The primary antenna connections on the Sentry 4G unit are TNC female connectors; therefore
you must purchase antennas with TNC male connectors. Do not select TNC antennas with
“reverse polarity” or RP-Male. Mounting options and cable lengths are the user’s choice and
you must purchase antennas with TNC male connectors. Do not select TNC antennas with
“reverse polarity” or RP-Male. Mounting options and cable lengths are the user’s choice and
application specific.
Recommended antenna:
Manufacturer
Model Number
Antenna Type
Gain
PCTEL
BMAXC233805
Perm. Mount
5 dBi
If the Sentry unit is operated as a mobile terminal, the output power shall be reduced by a ratio
corresponding to the antenna gain. For instance, if the recommended antenna is used, the gain
shall be reduced by 5 dB. The antenna installation must be done by a professional.
corresponding to the antenna gain. For instance, if the recommended antenna is used, the gain
shall be reduced by 5 dB. The antenna installation must be done by a professional.
2.6.2
GPS Antenna
The Sentry 4G router’s GPS connector requires an external 3.3V GPS antenna. The GPS antenna
connection on the Sentry 4G product is a female SMA connector; therefore an antenna with an
SMA male connector is required. For best coverage, use an active antenna with a gain between
connection on the Sentry 4G product is a female SMA connector; therefore an antenna with an
SMA male connector is required. For best coverage, use an active antenna with a gain between
10 and 30 dB. Mounting options and cable lengths are user’s choice and application specific.
Recommended Antenna:
2.6.3
WiFi Antennas
The WiFi antenna connections on the Sentry 4G product are RP-SMA jacks; therefore antennas
with an RP-SMA plug are required. Mounting options and cable lengths are user’s choice and
with an RP-SMA plug are required. Mounting options and cable lengths are user’s choice and
application specific.
Industry Canada RSS Notices:
This device has been designed to operate with the antennas listed below, and having a
maximum gain of 5.5 dBi. Antennas not included in this list or having a gain greater than 5.5
dBi are strictly prohibited for use with this device. The required antenna impedance is 50Ω.
maximum gain of 5.5 dBi. Antennas not included in this list or having a gain greater than 5.5
dBi are strictly prohibited for use with this device. The required antenna impedance is 50Ω.
Manufacturer
Model Number
Antenna Type
Gain
PCTEL
BMMG24005ML195RPMSMA
Mag. Mount
5 dBi
To reduce potential radio interference to other users, the antenna type and its gain should be
so chosen that the equivalent isotropically radiated power (EIRP) is not more than that
permitted for successful communication.
so chosen that the equivalent isotropically radiated power (EIRP) is not more than that
permitted for successful communication.
Manufacturer
Model Number
Antenna type
Gain
PCTEL
AGPSPH16MM
Mag. Mount
4 dBiC