Specifications

5/2/2013 888-2500-001 3-15
WARNING: Disconnect primary power prior to servicing.
Section 3 Operation
DAX-1/DAX-3
SW Rev: Indicates the present software revision installed in the transmitter Exciter/
Controller board.
Fan 1, 2, 3, 4: Indicates the actual fan speed of the transmitter cooling fans. Normal
operation is approximately 100Hz. Fault occurs below 80 Hz.
3.5.2.2 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 (AC mains
energized and CB1 turned on), NOT transmitter ON time.
Security Key: NA indicates the optional Security Key is not installed on the PA
Motherboard. When installed, the Security Key enables advanced correction, digital
mode operation, and distortion reduction techniques in the transmitter. Display is NA or
OK.