User's Manual

001-2019-500 Rev 0 Paragon4 – UHF, 700 & 800MHz User Manual
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LOCK
PWR
RCVR
GATE
LEVEL
VOLUME
NORM -
Diversit
y
SDR Rx
5. Operating Description
5.1 Radio Assembly
The Radio assembly component of each Paragon4 product – UHF, 700 or 800 MHz – is made up of a
high performance synthesized radio base station designed for single channel operation. The Radio
Assembly’s modules are commonly installed in a standard, 19-inch wide rack frame.
The complement of modules is:
• 1 x Receiver module
• 1 x Exciter module
• 1 x BSC2 (controller-modem)
• 1 x 70 or 100-Watt Power Amplifier 19” rack-mount assembly
• 1 x Power Supplies
• 1 x Speaker panel
For locating each module, refer to Figure 3 above.
5.1.1 Receiver module
The receiver has several front panel controls and indicators. These are:
• Four LEDs:
PWR LED
Green normal operation
Amber bootloader program running
Red malfunction / reset
LOCK
LED
Green PLL locked
Red PLL not locked
1 LED
Green
RF carrier signal on audio channel 1 is above ma-
nually adjusted mute threshold
Off
RF carrier signal on audio channel 1 is below ma-
nually adjusted mute threshold
2 LED
Green
RF carrier signal on audio channel 2 is above ma-
nually adjusted mute threshold
Off
RF carrier signal on audio channel 2 is below ma-
nually adjusted mute threshold
• RCVR GATE LEVEL - Mute threshold adjustment. It sets the RF signal
level required to open the mute gate and allow audio to pass to the speak-
er.
• 1 / 2 Switch – Manual selection of Channel 1 or 2 audio
• Volume - The audio output delivers up to 1 watt to the speaker. Always set volume knob to min-
imum when not in use to reduce current consumption.
• NORM-MON Switch – Manual selection between MONitor: audio unmuted (continuous audio
monitoring) and NORMal: audio unmuted only when above the manually adjusted mute threshold
level
• one DE-9 RS-232 ports for setup
Preliminary