ProductSpecifications
Surface Mount GPS Antenna (Pat. Pnd.)
GPS Only & Dual Band 900 MHz/GPS■ Mounts easily to roof, trunk or bulkhead■ High performance GPS with 26 dB active
amplifier■ Secure & low profile less than 1" high, mounts
to 5/8" hole

Dual Band 900 & GPS
Also available inblack or grey!

Single Band GPS

These antenna are tough all around performers. The
surface mount dual and single band antennas are very
low profile, perfect for any vehicle, cargo trailers andmore.
Models include a single band GPS only version, as well
as several dual band 900 MHz & GPS antennas. The
dual band versions allow multiband operation for a varietyof AVL applications. Models are available for Cellular,CDPD, and other private networks. Separate cabling isprovided for the GPS and 900 MHz interface.
The design uses a 5/8" feed thru for securing to thevehicle. Access to the underside of the body surface isrequired to complete the installation. The antennas areoutfitted with 15 feet of RG-174 cable with SMB or SMA
connectors for the GPS interface. The 800/900 band
cable is 15 feet of RG-58 with a TNC connector. Other
cable lengths and connectors may be available.
GPS performance is 26 dB, with 5 dBi antenna gain. The
GPS circuit has a low noise figure (2.0 dB max) withexcellent filter characteristics. Power for the GPS amplifier (+3.3 or +5 VDC) and RF output is achieved throughthe same coax cable.
Specifications
Frequency:
GPS1575.42 +/- 2 MHz
Cellular/CDPD
824-894 MHz
Low SMR
804-870 MHz
High SMR/GSM 870-960 MHz
Cellular Gain:
Unity
GPS Gain:
26 dB, 5 dBi Antenna
VSWR:
2:1 max over range
Noise Figure:2.0 dB max, 1.7 dB typical
Operating Temp:-30o to +80o C
Nominal Impedance: 50 ohms
Maximum Power:
20 Watts (800/900 MHz Band)
Amplifier Bias:+3.3 or +5 VDC +/- 10% (GPS)Current Drain:
20 mA max

■ Single band GPS & Dual Band 900/GPS
models for AVL applications
For the dual band model, cellular performance is provided
by a low profile, yet high efficiency airdielectric radiatingelement. This maintains effective radiation across thedesired frequency range, with omnidirectional coverage.
Unity gain performance is maintained.
The antennas are enclosed in a weatherproof polycarbonate radome, and supplied with all mounting hardware
and sealing gasket. The single band radome is 2.5" indiameter, the dual band is 4.5".
Model Numbers
ModelDescription
SM-1575
Surface mount GPS with amplifier
SM-900/1575 Surface mount Cellular/CDPD & GPS
SM-837/1575 Surface mount Low SMR & GPS
SM-925/1575 Surface mount High SMR/GSM & GPS
Specify GPS connectors & 800/900 band connectors attime of order. Also specify amplifier bias voltage(3.3 VDC or 5 VDC) at time of order. Consult factory forother options and configurations.

Cable:
GPS
Cellular/SMR
Case:
Case Material:
Mounting:
SM-Dual BandSM Single(GPS)Hardware:Connector:

RG-174, 15 feet, exits at bottom
RG-58, 15 feet, exits at bottom
2.5" diameter x .75" H for GPS
4.5" diameter x .95" H for dual band
Polycarbonate
5/8" diameter, 3/8" long shaft
5/8" diameter, 3/4" long shaft
Nut, lockwasher and gasket included
SMB plug or SMA for GPS, TNC for
900 MHz bands. Consult factory forother configurations and connectors.

US Office & Headquarters: 3900-B River Road, Schiller Park, IL 60176 Tel: 800-648-2800 or 847-671-6690 Fax: 847-671-6715
UK Office: 106 Anglesey Business Park, Hednesford, Staffs. WS12 1NR UK Tel: (+44) 1543-878343 Fax: (+44) 1543-871714
Visit our web page at www.mobilemark.com. Specifications subject to change without notice (6/2003).
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