4RF Aprisa SR - Page 100

98 | Managing the Radio
Aprisa SRx User Manual 1.3.0
MODEM
The Radio > Radio Setup screen Modem section is different for a base / repeater / base-repeater station
and a remote station.
Modem Mode
This parameter sets the Modem Mode in the radio. The Modem Mode option list is dependent on the radio
Hardware Variant.
HW Variant
Option
Channel Sizes
136 MHz
Mode A (FCC / IC)
15 and 30 kHz
Mode B (ETSI)
12.5 and 25 kHz
220 MHz
Mode A (FCC / IC)
12.5, 15, 25 and 50 kHz
320 MHz
Mode A (ETSI / ACMA)
12.5, 20, 25 and 50 kHz
400 MHz
Mode A (ETSI / ACMA)
12.5, 20 and 25 kHz
Mode B (FCC / IC)
12.5 and 25 kHz
450 MHz
Mode A (ETSI / ACMA)
12.5 and 25 kHz
Mode B (FCC)
12.5 and 25 kHz
896 MHz
Mode A (FCC / IC)
12.5, 25 and 50 kHz
Mode B (FCC Part 24)
12.5, 25 and 50 kHz
Mode C (IC RSS-134)
12.5, 25 and 50 kHz
928 MHz
Mode A (FCC)
12.5, 25 and 50 kHz
Mode B (IC)
12.5, 25 and 50 kHz
Mode C (FCC Part 24)
12.5, 25 and 50 kHz
Mode D (IC RSS-134)
12.5, 25 and 50 kHz
Modulation Type
This parameter sets the modulation type for the radio.
Option
Function
QPSK (High Gain)
Sets the modulation to QPSK with Max Coded FEC.
QPSK (Low Gain)
Sets the modulation to QPSK with Min Coded FEC.
QPSK
Sets the modulation to QPSK with no FEC.
The default setting is QPSK (Low Gain).