Specifications

3-14 888-2500-001 5/2/2013
WARNING: Disconnect primary power prior to servicing.
DAX-1/DAX-3
Section 3 Operation
Reflected Pwr: Reflected power to the transmitter measured using a detector on the
Output Monitor board. Instantaneous reflected trip point is factory set to 100W per PA
module.
VSWR: Voltage standing wave ratio. Example: 1.009 reading indicates 1.009:1 ratio.
DC Voltage: High voltage power supply (B+) voltage measured via B+ Sample board.
Voltage range is 100V – 300V and varies with power level setting.
DC Current: High voltage power supply DC current measured using the shunt in the
HVPS. No calibration required. Nominal DC current is approximately 4.5A per kW
with program modulation.
AC Voltage: High voltage power supply transformer SECONDARY AC voltage
measured on Power Supply Controller board. Nominal secondary voltage for DAX-5 &
DAX-6 is 260Vrms for 3 phase, 265Vrms for single phase.
Nominal secondary for DAX-1 & DAX-3 is 240Vrms. Trip points are set to +13%/-
18%.
Frequency: Transmitter Carrier frequency.
Digital On/Off: Indication of audio input mode. If ON: DIGITAL AM MAG and
DIGITAL PHASE INPUTs are being used as source of audio and carrier. When OFF:
ANLG AUDIO input and either internal or external RF Carrier are being used as source
of audio and carrier.
Remote Enable: Indicates either ON: Remote enabled, or OFF: Remote disabled.
ePDM Frequency: Indicates the PDM frequency utilized in the transmitter. This
frequency is dependent on carrier frequency with the range being 150kHz – 200kHz.
10MHz Int/Ext: INT: Indicates that either the internal +/- 2 PPM 10MHz oscillator is
used as the frequency reference. EXT: Indicates that an externally supplied 10MHz
reference oscillator is being used via the 10MHz INPUT.
Filter Band: Indicates whether Band A, B, or C filter board is installed on the Exciter/
Controller. The frequency bands are set:
• Band A – 529kHz – 759kHz
• Band B – 760kHz – 1109kHz
• Band C – 1110kHz – 1705kHz
Exciter/IO Rev: Indicates the board revisions for the Exciter/Controller board /
External I/O board.