The TX326 is a satellite transmitter that uses the Meteosat satellite system to provide one-way communications from a data collection platform (DCP) to a receiving station.
Meteosat is a system of geostationary meteorological satellites operated by EUMETSAT (European Organisation for the Exploitation of Meteorological Satellites). Geostationary satellites have orbits that coincide with the Earth's rotation, allowing each satellite to remain above a specific region. EUMETSAT is an intergovernmental organization created through an international convention of European countries.Read More
Campbell Scientific recommends using the 25316 11 dBi GOES Yagi RHCP Antenna with this transmitter.
For the TX325 and TX326, an active GPS antenna is required, and the maximum antenna RF gain the antenna can have is 25 dB. The radio (TX32X) will only supply 3.3 V to an active GPS antenna.
The TX326 transmitter uses the Meteosat satellite system to provide one-way communications from a data collection platform (DCP) to a receiving station. Supported transmission rates are 100 (SRDCP) and 1200 (HRDCP) bps. This transmitter is used with our CR300, CR310, CR1000X, and CR6 dataloggers, as well as with our GRANITE measurement and control data-acquisition systems.
Because clock accuracy is critically important for Meteosat satellite telemetry, the TX326 includes an embedded GPS receiver. The GPS receiver automatically corrects for clock and oscillator drift, allowing for longer intervals between service visits.
Detailed diagnostic information about the radio is also available for the field technician and various diagnostic uses. These diagnostic parameters include the following:
|Transmit RF Out Connector||Type N jack|
|Operating Temperature Range||-40° to +55°C|
|Storage Temperature Range||-55° to +75°C|
|EUMETSAT DCP Radio Certification (2013-003)||
|Time-of-Day Clock||Accurate to 20 ms with GPS receiver.|
|Case Dimensions||15.88 x 12.7 x 4.57 cm (6.25 x 5 x 1.8 in.) not including connectors|
|Maximum Dimensions||15.88 x 14.99 x 4.57 cm (6.25 x 5.9 x 1.8 in.) including connectors|
|Weight||0.77 kg (1.7 lb)|
|Supply Voltage Range||10.5 to 16 Vdc|
|Typical Current Drain||
|Connector||2-pin screw terminal, 0.2 in. pitch|
Up to 23.1 V (reverse polarity and overvoltage)
Total system current is fused at 5 A with replaceable fuse
|Baud Rates||100 (tolerance ±0.005 bps) and 1200 bps (tolerance ±0.06 bps)|
|Transmit Power (100 baud)||
|Transmit Power (1200 baud)||
|Frequency Range - Meteosat||402.0355 MHz (channel #1) to 402.4345 MHz (channel #267) (267 channels with a 1.5 KHz channel bandwidth each.)|
|Frequency Range - International||402.0025 MHz (channel #268) to 402.034 MHz (channel #289) (21 channels reassigned from international bandwidth 1.5 KHz.)|
|Initial Frequency Stability||
|Channel Bandwidth||100/1200 Baud 1.5 KHz|
|Receiver Type||3.3 V active|
|Connector Type||SMA jack|
|Initial Accuracy||±100 μs (synchronized to GPS)|
|Drift||±40 ms/day (without GPS)|
|GPS Schedule||1 fix at power up (updated at roughly an 11-hour rate)|
|Transmission Continuation without GPS Fix||6 days|
|RS-232||DB9 M, DTE, 3-wire RS-232|
Note: The following shows notable compatibility information. It is not a comprehensive list of all compatible or incompatible products.
|CR1000X||Requires OS version 4 or greater.|
|CR300||Requires OS version 10 or greater.|
|CR310||Requires OS version 10 or greater.|
|CR6||Requires OS version 10 or greater.|
GRANITE-series, CR6, CR1000X, or CR300-series data logger program for the TX326 and TX325 that sets up self-timed and random transmissions and reads diagnostic information. Another program is available for the TX325 with the CR3000, CR1000, or CR800-series data loggers because they are programmed differently.