User Manual

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