User's Manual

31-3MDR00HB Page 31 Operation
Draft
Table 5 Digital ACARS Functions and Parameters
Function Adjustment Range Factory Default
Step
Size
Frequency 118 to 136.975 MHz 118.000 MHz 25 kHz
Band edges BE1
and BE3
118 to 136.975 MHz 118.000 MHz 25 kHz
Band edges BE2
and BE4
118 to 136.975 MHz 136.975 MHz 25 kHz
Channel 1 to 100 – 1
RF power 3 to 25 W 25 W 1 W
Reference
frequency
0 to 100% – 0.4%
LCD display
backlight time-out
15 to 120 s, On or Off 30 s 15 s
Modulation depth 5 to 95% 90% 1%
RF pre-attenuator On or Off Off –
Loudspeaker/
Headset volume
0 to 100% 30% 5%
MAC TM1
(Inter-access delay)
0.5 to 125 ms 75.5 ms 0.5 ms
MAC TM2
(Channel busy)
1 to 120 s 60 s 1 s
MAC TM3 1 to 120 s 20 s 1 s
MAC p
(Persistance)
1/256 to 256/256 50/256 1/256
MAC M1
(maximum number
of access attempts)
2 to 9999 10 10
TX enable On or Off Off –
Loop back On or Off Off –
DHCP On or Off Off –
IP address 000.000.000.000 to 255.255.255.255 192.168.0.2 –
IP subnet mask 000.000.000.000 to 255.255.255.255 255.255.255.000 –
Default gateway
address
000.000.000.000 to 255.255.255.255 192.168.0.1 –
Control application
TCP port number
5001 to 65535 30000 –