Honeywell International Inc. HD-128 Manuale Utente
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Copyright © EMS Technologies Canada, Ltd.
HSD Aeronautical Transceivers
18
Table 1 HSD transceiver default settings
IMN
(Numbers
assigned
to aircraft)
MSN
Service
Type
Dial code prefix
(Forces service
selection)
60xxxxxxx
40
Speech
¿
81 ¿
60xxxxxxx
20
3.1
k
audio
¿
82 ¿
60xxxxxxx
30
56 k data
¿
83 ¿
60xxxxxxx
10
64 k data
¿
84 ¿
76xxxxxxx
40
4.8 k Low-
Speed Voice
¿
80 ¿
When connecting external devices to the HSD Transceiver,
ensure that the service type required by the device has been
configured (or assigned) the correct setting.
ensure that the service type required by the device has been
configured (or assigned) the correct setting.
Speech, 3.1k audio, 56 k data, and 64 k data are typically
assigned 9-digit IMNs that begin with 60. Low-speed
(4.8 k) voice is assigned a 9-digit IMN beginning with the
digits 76.
assigned 9-digit IMNs that begin with 60. Low-speed
(4.8 k) voice is assigned a 9-digit IMN beginning with the
digits 76.
Low-speed (4.8 k) is an inexpensive service option for
placing voice calls—but it provides lower audio quality.
placing voice calls—but it provides lower audio quality.
Both low-speed voice and 64 k speech calls
use the MSN of 40; however, they are
assigned different IMNs.
use the MSN of 40; however, they are
assigned different IMNs.
To select low-speed voice for outbound calls,
use the dial code prefix ¿80 ¿. The default
service type for outbound calls (if no dial
code prefix is used) is 64 k voice.
use the dial code prefix ¿80 ¿. The default
service type for outbound calls (if no dial
code prefix is used) is 64 k voice.