Specifications

3–2
FM500 User's Manual
Possible equipment damage!
Before operating the transmitter for
the first time, check for the proper AC
line voltage setting and frequency
selection as described in sections 2.3
and 2.4.
CAUTION
1. Turn on the main power switch.
Illustration 3–1 Front Panel Power Switches
3.1 Initial Power-up Procedures
These steps summarize the operating procedures you should use for the initial
operation of the transmitter. More detailed information follows.
2. Verify the following:
a. The bottom cooling fans runs continuously.
b. The Lock Fault indicator flashes for approximately 5 seconds, then goes
off.
4. Set the Input Gain switches for mid-scale wideband gain reduction on an
average program level (see section 3.4).
5. Set the Processing control (see section 3.5; normal setting is “50”).
6. Set the Stereo-Mono switch to Stereo (see section 3.6).
7. Turn on the Carrier switch.
FM500
FM BROADCAST TRANSMITTER
Power
Carrier
Modulation
Fault
Stereo
Mono RF Output
SWR
Lock
Input
PA DC
PA Temp
Over
100
90
80
70
60
50
40
30
20
Pilot
Power Switch
Carrier Switch