Specifications

5/2/2013 888-2500-001 6-7
WARNING: Disconnect primary power prior to servicing.
Section 6 Troubleshooting
DAX-1/DAX-3
• Band B – 760kHz – 1109kHz
• Band C – 1110kHz – 1705kHz
Exciter/IO Rev: Indicates the board revisions for the Exciter/Controller board /
External I/O board.
SW Rev: Indicates the present software revision installed in the transmitter Exciter/
Controller board.
Fan 1, 2: Indicates the actual fan speed of the transmitter cooling fans. Normal
operation is approximately 100Hz. Fault occurs below 80 Hz.
6.2.2.1.2 CURRENT STATUS
PA 1 - 6: Indication of PA module status. Possible indications are: NA (Not Available)
indicating PA module not installed, OK indicating no faults present on PA module, or
FAULT.
Exciter: Indication of Exciter/Controller board status. Status can be OK or FAULT.
EXT IO: Indication of External I/O board status. Status can be OK or FAULT.
Foldback: ON: Indicates the transmitter has lowered output power due to high
reflected power (VSWR) in the transmitter. OFF: Normal operation.
Mute: When MUTE is displayed, indicates the output power of the transmitter has been
muted. OK indicates normal operation.
Interlock: When INTLK is displayed, indicates either an internal PA interlock, output
monitor interlock, or external interlock is present. OK indicates normal operation.
Tail Biter: Tail Biter is an optional distortion reduction technique utilized in the
transmitter. When ON, indicates this option is installed. Status is ON or OFF.
Ideal Range: The HVPS in the transmitter is varied to optimize the dynamic range of
the enhanced PDM circuitry. When the DAX is operating in this optimum dynamic
range, a YES indication is displayed.
If NO is displayed, reset the power level via the procedure outlined in section "3.3.3.3
To Set Desired RF Power Output Level" on page 3-5.
Time: The total-time meter of the transmitter is shown in hours:minutes:seconds in this
display. The time presented indicates the time that the transmitter is powered, NOT
transmitter ON time.