WRG300
TECHNICAL SPECIFICATIONS
|
|
| Transmission
Mode |
Narrowband
FM |
|
| RF
frequency range |
162.400
to 162.550 MHz in 25
kHz steps (12.5 kHz steps optional) |
|
| RF
deviation |
+/-
5kHz |
|
| Frequency
Stability |
.0005%
30 to +50
deg.
C |
|
| RF
Power |
100-375
watts adjustable, maximum VSWR 3:1with
auto-foldbackat higher reflected power |
|
| Output
Impedance |
50
Ohms unbalanced |
|
| Audio
frequency response |
100
Hz5 kHz, +1, -3dB |
|
| Audio
Input |
600
Ohms balanced |
|
| Input
level |
20
dBm to +5dBm for ą5kHz deviation |
|
| Audio
distortion |
Less
than 1.0% |
|
| FM
hum and noise |
Better
than 40 dB |
|
| AM
noise |
Better
than 34 dB |
|
| Spurious
emission |
Better
than 74 dB |
|
| Transmitter
power consumption |
600
VA at 300 watts |
|
| MTBF |
Better
than 10,000 hours |
|
| Control
and monitoring |
A
ROAMS (Remote Off-Air Monitoring
System) monitors and reports system status.
In addition, a microprocessor-based interface,
controls the system and monitors power output,
VSWR,
power amplifier voltage and current, audio input
level,
deviation, primary ac voltages and other critical
parameters.
Fault sensing initiates automatic switching of the
transmitters. |
|
| Operating
environment |
Temperature
(30 to +50 deg. C);
humidity (0 to 95% at 20 deg. C,
non-condensing); maximum
altitude 15,000 feet. |
|
| Primary
power |
Requires
two, 120 or 240 volt ac circuits |
|
| Telephone
lines |
One
leased-line for audio program, one
dial-up line for monitoring and control. Touch tone
telephone
required. |
|
| Cabinet
dimensions |
23.75
x 27.50x 46.00 inches |
|
|
