Trimble Inc. TC900C Benutzerhandbuch
SNR900 Operation Manual 3 5
Technical Specifications A
1
Power consumption, as well as the permissible number of repeaters in a network, depends on the
information content and wireless data rate (that is, CMR vs RTCM SC-104 Ver. 2.x packets at 1 Hz epoch
rates).
rates).
2
Broadcast frequency and radiated power are regulated by countries-of-use. These are unique on a per
country basis. The broadcast frequencies, and country-of-use for the radio-modem must be specified at time
of order.
of order.
Radio-modem performance
Range
Optimal
Typical
Typical
Frequency range
Networks
Transmit power
Networks
Transmit power
Wireless data rates
Modes
Modes
10 km (6 miles), line-of-sight
3–5 km (2–3 miles)
Varies with terrain and operating
conditions. Repeaters may be used to
extend range.
902–928 MHz
3–5 km (2–3 miles)
Varies with terrain and operating
conditions. Repeaters may be used to
extend range.
902–928 MHz
2
Forty user selectable networks
Meets FCC requirements of 1 W
maximum power output
128 kbps
Base/Repeater/Rover
Meets FCC requirements of 1 W
maximum power output
128 kbps
Base/Repeater/Rover
Table A.1
Technical information (continued)
Specification
SNR900.book Page 35 Friday, December 3, 2004 2:02 PM