GE MDS SD Series Technical Manual page 98

Constraint
RSSI display in strong
signal environments
Radio operation in strong
signal environments
DC input voltage (SD4)
88
Table 16. Operating Constraints
Detailed Information
The RSSI facility limits the maximum displayed signal
strength to –60 dBm. Signal levels that are higher
than -60 dBm will appear as > -60 dBm.
Operation with very strong receive signals (> -60
dBm) may require selection of the programmable RX
Signal Attenuation feature (see Advanced Settings
screen). Some higher bandwidth modems (e.g.,
65000) may require further external attenuation if
operating at even stronger signal levels (> -35dbm).
Note that this is rarely a practical concern; the most
likely scenario is in bench testing. Typical field
deployments have normal signal strengths well below
this threshold.
Early SD4 models supported 10.5 to 16 VDC power,
not 10 to 30 VDC. Always check the labeling above
the power connector to confirm the operating range
for your unit.
SD Series Technical Manual MDS 05-4846A01, Rev. I