Trimble Outdoors thunderbolt 64057-00-eng Benutzerhandbuch
Trimble ThunderBolt E GPS Disciplined Clock User Guide
27
Hardware Integration
3
Bullet antenna specifications
To download full specifications of the Bullet antenna, as well as ordering information,
please go to the Trimble website.
please go to the Trimble website.
Physical characteristics
Note – The Bullet III mounting thread is a 3/4" NPT thread, dimensions in accordance
with ANSI/ASME B1.20.1. It is compatible with tapered threads in accordance with
DIN EN 10226 (which is the same as ISO 7/1, DIN 2999, BSP 21, JIS B0203). It is not
compatible with straight threads in accordance with ISO 228/1.
with ANSI/ASME B1.20.1. It is compatible with tapered threads in accordance with
DIN EN 10226 (which is the same as ISO 7/1, DIN 2999, BSP 21, JIS B0203). It is not
compatible with straight threads in accordance with ISO 228/1.
Environmental specifications
Antenna cable
Trimble includes an RG-6 cable in the starter kit to connect the ThunderBolt E and the
Bullet antenna. This cable type is widely available.
Bullet antenna. This cable type is widely available.
Note – The ThunderBolt E and the Bullet antenna are compatible with either 50
Ω
or 75
Ω
cable. Compared to most 50
Ω
cable, 75
Ω
cable provides superior transmission for the 1.5
GHz GPS signal and a better quality cable for the price. Mismatched impedance is not a
problem.
problem.
Note – RG-6 cable is lower loss than RG-59 and can be used when trying to maximize a
cable run without the use of in-line amplifiers.
cable run without the use of in-line amplifiers.
The Bullet antenna has greater than 28 dB gain and “best case” noise figure of 3 dB. The
ThunderBolt E has less than an 8 dB noise figure. The system can therefore “tolerate”
18 dB of cable loss for less than 1 dB degradation in performance.
ThunderBolt E has less than an 8 dB noise figure. The system can therefore “tolerate”
18 dB of cable loss for less than 1 dB degradation in performance.
Dimensions
77.5 mm diameter x 66.2 mm height (3.05" x 2.61")
Bullet enclosure
Textured, off-white plastic
Antenna weight
170 grams (6 oz)
Connector
F-type or TNC
Mount
1"-14 thread or 3/4" pipe thread
Operating temperature
-40 °C to +85 °C (-40 °F to 185 °F)
Storage temperature
-40 °C to +100 °C (-40 °F to 212 °F)
Vibration
0.04g
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
50 g vertical, 30 g all axes
Humidity
Mil-STD-810E
Salt Fog
Mil. Std. 202F, Method 101D Condition B
Waterproof
Submersion to 1 meter