Motorola MTR3000 Basic Service Manual

MTR3000 Third Party Controllers: Trunking Controllers E-19
E.5.5 Trunking Controller Settings
The input and output levels should be adjusted per the trunking controller’s instructions. The
summary below gives a brief overview of the high level characteristics and trunking controller
settings for configuration with the MTR3000 Base Station/Repeater.
E.5.5.1 Discriminator
The MTR3000 Base Station/Repeater’s Receiver audio will yield 330mV rms into 50 kΩ with an RF
input signal deviating at 60% RSD. With the trunking controllers own loading impedance, the
“Discriminator” signal delivered to the trunking controller will need to be boosted by setting the
following jumpers in the noted position:
• Marauder and Raider
- W22: OUT position
- W30: IN position
E.5.5.2 Tx Audio
The MTR3000 Base Station/Repeater’s transmitter will yield 60% RSD with 80mV rms into the Emph
Tx Audio port. No range setting is provided in the trunking controller for the Tx Audio, rather the level
is solely controlled by a singular potentiometer or soft-potentiometer.
E.5.5.3 Tx Data
The MTR3000 Base Station/Repeater’s transmitter will yield 60% RSD with 80mV rms into the Tx
Data port. No range setting is provided in the trunking controller for the Tx Data, rather the level is
solely controlled by a singular potentiometer or soft-potentiometer.
• Marauder, Raider and NTS
- Data needs to be inverted
- NTS needs to be set for DSP operation (Channel card setting)

Motorola MTR3000 Specifications

General

Brand	Motorola
Model	MTR3000
Category	Accessories
Language	English