Benefits and Features
NESDIS HDR V2 certified (certification number 12142012)
ANATEL certified (certification number 07995-21-10644)
Compatible with GOES DCS system
Easy integration with Campbell Scientific data loggers
Field tested and proven track record of reliability
Embedded GPS receivefror stabilized internal time keeping and transmit frequency for long service intervals
Low standby current consumption for battery-powered systems at remote DCP installation sites
Quick assessment of radio health via monitoring of diagnostic data from the radio

Technical Description
The TX325 transmitter can transmit either self-timed or random GOES messages to the GOES West and GOES East satellites. In a typical configuration, the TX325 is connected to a data logger via an RS-232 serial connection. The data logger makes measurements, then formats those values to create a data packet which is then transferred to the TX325. The TX325 then buffers the message until its transmission window (or random transmission time), when it will then transmitthe data at either 300 or 1200 bps.
Extremely accurate timing is obtained from the integrated GPS receiver (+100 ps), and the internal clock is capable of maintaining accurate time for a minimum of 20 days. If the TX325 finds itself without an accurate time, it suspends data transmissions until an accurate time is obtained.
Detailed diagnostic information about the radio is also availafborl tehe field technician and various diagnostic uses. These diagnostic parameters include the following:
Latitude and longitude using the built-in GPS
Current battery voltage
Current temperature
Battery voltage before last transmission
Temperature before last transmission
Battery voltage during last transmission
Altitude of last GPS position
Time of last GPS position
Number of GPS fix misses
Time of last missed GPS fix
GPS receiver health and status
Failsafe tripped indication
Duration of last transmission
Forward power of last transmission
Reflect power on last transmission
VSWR (voltage standing wave ratio) last transmission results
Current transmission state