32
SD Series Reference Manual (x710 Mode)
MDS 05-4670A01, Rev. E
1) For MDS x710-compatible operation.
2) For ETSI compliance.
3) 3200 bps not applicable to SD4.
4) Only available for SD2 and SD9 units with wide bandwidth hardware option.
Sensitivity is -104 dBm for SD2 and -100 dBm for SD9.
5) SD1 sensitivity may be up to 2 dB less, due to MDS 1710 interoperability
constraints.
For analog operation with an external modem, enter
NONE
for this
parameter. When the
MODEM
is set to
NONE
, the analog TX Input and RX
Audio outputs of the
DATA INTERFACE
are used to interface with the
connected external modem, and digital operation is disabled. These
levels must be set to complement the audio signal level requirements of
the external modem. See “RXLEVEL [–20 to 0]” on page 35 and
“TXLEVEL [–20 to 0, AUTO]” on Page 39 for details on setting these
levels.
Modem 4800F
4800
6.25
-108 dBm
Modem 9600B
1
9600
12.5
-106 dBm
Modem 4800B
1
4800
12.5
-110 dBm
Modem BELL
1
1200
12.5
-110 dBm
Modem V23
1200
12.5
-110 dBm
Modem 19200N
19200
12.5
-100 dBm
Modem 19200E
2
19200
12.5
-96 dBm
Modem 9600N
9600
6.25
-98 dBm
Modem 19200
19200
25.0
-105 dBm
Modem 38400N
38400
25.0
-99 dBm
Modem 65000
4
65000
50.0
-102 dBm
Modem NONE
For analog operation with an external modem.
See text.
Table 12. Modem Selection vs. Speed, Bandwidth & Sensitivity
Modem Type
Selection
Over-the-air
Speed (bps)
B/W (kHz)
Approximate
Sensitivity
5
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