Freedom R8100 SERIES, Руководство оператора

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Test Pattern
Specifies the TETRA compliant test pattern generated by the R8100 to assess audio performance. Audio
patterns utilize digital vocoder type ACELP at a 7.2 kHz talk channel rate. For sensitivity tests the R8100
can transmit the multiframe test pattern over its entire output power level range. This provides an estimate
of the reference sensitivity for the radio. A horizontal submenu provides the following TETRA compliant
patterns:
1000 Hz Tone – a predefined TETRA-compatible vocoder multiframe test pattern that produces a 1 kHz
tone at the speaker of the receiver vocoder. It can be used to quickly check audio performance in the field.
Silence – a predefined TETRA-compatible vocoder multiframe test pattern that results in silence at the
vocoder.
Note: All patterns use the Open TSI (O-TSI) destination (Open MNI and Open SSI) as a convenience to
eliminate the need to reprogram the radio’s talkgroup/ID.