GDP-32
II
INSTRUCTION MANUAL
May 2002 Section 18, Page 4
18.5 XMT-32 TRANSMITTER CONTROLLER SPECS
GENERAL DESCRIPTION
Microprocessor controlled with memory for storing time schedule look-up tables for
automatic transmitter control.
Synchronous time-base with internal calibrator.
Time or Frequency domain capability, 50% or 100% Duty cycle.
Frequency range in Binary Steps: 1024 Seconds to 8192 Hz
Size: 28x21x18 cm (11x8x7 in)
Weight: 6.4 kg (14 lb)
Enclosure: Heavy duty, environmentally sealed aluminum case.
Power: 12 V rechargeable battery, more than 10 hours continuous operation
Temperature range: -40
o
to +60
o
C (-40
o
to +140
o
F)
Humidity range: 0 to 95% non-condensing
Time base: Oven-controlled crystal oscillator;
aging rate <5x10
-10
per 24 hours
(optional crystal: 1x10
-11
per 24 hours.)
CONTROLS & DISPLAYS
Phase/Battery meter
Time/Frequency switch
Battery/Phase meter switch
High/Low range calibrate output switch
.025/.25/2.5V PP
Reset switch
LCD Frequency display
Circuit Breaker.
OUTPUTS & INPUTS
12V Battery charge input
Control input/output
Calibrate output
RS232 input for time sequence table
FUNCTIONS
Can be synchronized with GDP-32
II
Receiver for synchronous measurements. Capable
of controlling GGT-series and ZT- and NT-series transmitters in both time and frequency
domain. Continuous phase coherency between 1024 second period and 8192 Hz. 20
milliamp control signal for transmitter control. Reset pulse output for GDP-series
receiver.
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