User's Manual

ECLIPSE2 IPCommander User Manual
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6.2.6. Pre-Emphasis
Provides a standard FM Transmitter pre-emphasised audio response.
Required for standard base station and repeater configurations. Connects between the FM
Modulator and Audio Filters.
6.2.7. Line Input
The Line Input function connects the external 600 Ohm Balanced Line Input to the
transmit audio path.
The audio input is typically set for a level of -10dBm to achieve 60% of system deviation.
Use the Gain function block to adjust the audio levels for the required deviation as per the
following table.
Channel Bandwidth
Maximum Transmit
60% of Maximum
Deviation
Transmit
Deviation
12.5KHz narrowband
2.5KHz
1.5KHz
25KHz wideband
5.0KHz
3.0KHz
6.2.8. Line Ouput
The Line Output connects the external 600 Ohm Balanced Line Output to the receiver
audio path. Use the Gain function block to adjust the line audio levels as per the following
table.
Channel Bandwidth
60% of Deviation
Line Out Audio
with a 1KHz tone
Level
12.5KHz narrowband
1.5KHz
-
10dBm
25KHz wideband
3.0KHz
-
10dBm
6.2.9. Gain