Managing the Radio | 135
Aprisa SR+ User Manual 1.11.1
To change the TX and RX frequencies:
1. For all the remote radios operating from the repeater station, change the RX frequency to frequency A
and the TX frequency to frequency B. The radio links to these remote radios will fail.
2. For the repeater station, change the TX frequency to frequency A and the RX frequency to frequency
B. The remote radios operating from the repeater station, will now establish a connection to the
repeater.
3. For all the remote radios operating from the base station, change the TX frequency to frequency A and
the RX frequency to frequency B. The radio links to these remote radios will fail.
4. For the base station, change the RX frequency to frequency A and the TX frequency to frequency B. The
radio links to the remote radios operating from the repeater station or the base station will restore.
TX Power
The transmitter power is the power measured at the antenna output port when transmitting. The transmitter
power has a direct impact on the radio power consumption.
The default setting is +37 dBm.
If TX Power setting is higher than the high limit or lower than the low limit for the current modulation, an
Informational Event (55 Terminal Unit Information) will be raised to notify the user that transmit power has
been changed. This only applies to fixed modulation (not ACM).
The Peak Envelope Power (PEP) is calculated based on current configured TX power settings and modulation:
•
QPSK
PEP = TX Power S 3 dBm
•
16 QAM
PEP = TX Power S 5 dBm
•
64 QAM
PEP = TX Power S 6 dBm
Note:
The Aprisa SR+ transmitter contains power amplifier protection which allows the antenna to be
disconnected from the antenna port without product damage.
Содержание Aprisa SR+
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