Campbell TX312 Spécifications télécharger pdf (Page 8)

TX312 Transmitter

Specifications:

On-board memory: Non-volatile flash for setup parameters. 16 kbytes for

data

Transmission Data

Rates:

100, 300 and 1200 bps

Power requirements: 10.8 to 16 VDC, 5 mA quiescent, 90 mA during GPS

fix and 2.6 Amps during transmission

25316 Transmit

Antenna:

11 dBi Gain, Right Hand Circular polarization, Type

N female connector, wind load of ~100 knots

Transmit power: 5.6 watts for 100 and 300 bps, 11.2 watts for 1200 bps

Frequency Range: 401.701 MHz to 402.09850 MHz

Frequency Stability: Initial Accuracy: ±20 Hz disciplined to GPS; Short

term drift: ±0.04 Hz/sec, Ageing: ±-0.1 ppm/Year,

Vcc + Temperature: ±-0.1 PPM

Channel Bandwidth: 100/300 bps 1.5 kHz; 1200 bps 3 kHz

Time Keeping: Initial setting accuracy: ± 100 microseconds

synchronized to GPS; Drift ± 10 milliseconds/day over

operating temperature range; GPS scheduled updates

are 1 at power up and once per day there after. Once

every 28 days required for continual operation

GPS antenna: 3.3 volt active; SMA female connector

RS-232 serial port: Signal Levels: RS-232C; Connector: DB9F; Command

protocols: ASCII, Binary, Field diagnostics,

Dataloggers with RS-232 port

CS I/O port: Signal Levels: TTL, Connector DB9M; Command

Protocol: Campbell Scientific Synchronous Device

Communication, Binary Command, Campbell

Scientific Dataloggers.

SDI-12 Port: Multiplexed with CS I/O port. Protocol SDI-12

Recorder version 1.3

Environmental:

Operating: -40° to 60°C; Storage -50º to 70ºC; 0 to

99% RH, non-condensing

Dimensions (with

mounts):

6.4” H x 11” L x 2.1” W (16.2 x 27.9 x 5.3 cm)

Weight: 2.1 lbs (0.95 kg)

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Campbell TX312 Spécifications Page 8