Trimble Bullet II HE GPS Antenna Specifications

Key Features and
Benefits

• High performance in
any environment

• Waterproof, weather­proof

• Resists harsh
RF jamming

• Proven extra
rugged, reliable

Bullet II HE GPS Antenna

Jam-Resistant Active GPS Antenna

Whatever the environment—
wet, cold, sunny, hot, harsh RF
jamming—Trimble’s Bullet™II
HE GPS antenna can take it,
year after year. Designed primar­ily for stationary applications,
the Bullet II HE (hostile
environment) provides a perfect
solution for manufacturers who
need a fixed-site, rooftop GPS
antenna. This antenna is also
a high-quality solution for
adding GPS RF signals to
marine GPS navigation systems.

The antenna is housed in
completely waterproof packaging
designed to withstand exposure
to shock, excessive vibration,
extreme temperatures, rain, snow
and sunlight. The enclosure is
all plastic, including the threaded
socket in the base of the antenna
used for pole mounting, so there
is no danger of corrosion.

The enclosure is a textured
off-white color and is both
weatherproof and waterproof.
The threaded socket accepts
either a 1"-14 straight thread
(typical marine antenna mount)
or a 3/4" pipe thread. The F-type
antenna connector is located
inside the threaded socket,
which allows the antenna cable
to be routed inside the pole and
protects the cable connection for
added reliability.

The Bullet II HE antenna is
an active GPS antenna with
35-dB preamp and dual band-

pass filters. The high-gain preamp
allows the Bullet II HE to be used
with up to 75 feet of RG-59 cable.
The bandpass filters improve
immunity to other RF signals
for reliable performance in hos­tile RF jamming environments.

For over 15 years, Trimble
has been producing GPS anten­nas renowned for their surviv­ability in tough environments.
The Bullet II HE is the third
generation of the proven Bullet
antenna family (more than

40,000 delivered) and offers all the
reliability and performance
benefits that this exceptional field
experience provides.

In unforgiving environments,
an antenna failure could be disas­trous. Don’t risk it. Select a proven,
stress-tested, GPS antenna—the
Trimble Bullet II HE GPS antenna.

Bullet II HE Jam-Resistant active GPS antenna

Bullet II HE GPS Antenna

Jam-Resistant Active GPS Antenna

© Copyright 2000-2001, Trimble Navigation Limited. All rights reserved. The Globe and Triangle with Trimble and Bullet are trademarks of Trimble Navigation Limited.

All other trademarks are the property of their respective owners. TID12305 (1/01)

Trimble Navigation Limited
645 North Mary Avenue
Sunnyvale, CA 94086

1.800.827.8000 Here inside U.S.

1.408.481.2000 Here outside U.S.

1.408.481.7744 Fax
www.trimble.com

Trimble Navigation Europe Limited
Trimble House
Meridiam Office Park
Osborn Way, Hook
Hampshire RG27 9HX, U.K.
[phone]
[phone] Fax

ENVIRONMENTAL SPECIFICATIONS

Operating Temp: –40° C to +85° C
Storage Temp: –55° C to +100° C
Vibration: 0.04

2

/Hz 10 Hz to 500 Hz

0.03g

2

/Hz 500 Hz to 850 Hz

0.02g

2

/Hz 850 Hz to 1200 Hz

Shock: 40 g (11 m/sec sawtooth)
Humidity: 95% R.H., non-condensing
Salt fog: Mil. Std. 202F, Method 101D, Condition B
Waterproof: Submersion to 1 meter

PHYSICAL CHARACTERISTICS

Dimensions: 3.04" D x 2.94" H (77.3 mm x 74.6 mm)
Weight: 3.5 oz (100 grams)
Enclosure: Textured, off-white plastic
Connector: F-type
Mounting: 1"-14 thread or 3/4" pipe thread

TECHNICAL/PERFORMANCE SPECIFICATIONS

Prime power: +5 Volts DC (±10%)
Power consumption: 22 mA, 0.11 watt (nominal)
Output impedance: 50Ω
Frequency: L1 (1575 MHz)
Polarization: Right-hand circular polarization (RHCP)
VSWR: 2:1
Axial ratio: 2 dB @ zenith 10dB above 10° elevation
Gain: 35 dB (nominal)
Noise: 2.75 dB (nominal)
Pass-band width: 50 MHz
Filtering: –20 dBm @ 1626 MHz

–10 dBm @ 1500 MHz

Azimuth coverage: 360° (omni-directional)
Elevation coverage: 0° to 90° elevation (hemispherical)

CABLE SPECIFICATIONS

Type: RG-59
Impedance: 75Ω
Capacitance: 16.5 pF/foot (54.1 pF/meter)
Vel. of propagation: 84%
Shielding: Foil and copper braid (100% coverage)
Connectors: Waterproof F-type
Signal attenuation: <10 dB for cable and connectors

DIAGRAM

ORDERING INFORMATION

You may visit our website for current information, part numbers, and
ordering information at: http://www.trimble.com/oem/timing.htm

Specifications and descriptions are subject to change without notice.

Trimble Japan K.K.
Torigo F Building 7F
1-8-2, Torigoe Taito-ku,
Tokyo 111-0054
JAPAN
[phone]
[phone] Fax

Trimble Navigation
Austrailia Pty Limited
Level 1/123 Gotha Street
Fortitude Valley QLD 4006 Australia
[phone]
[phone] Fax