Specifications
Configuration MP.11 5054-R/2454-R Installation and Management
Interface Parameters
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security. Basic security is provided through encryption, as it causes none of the messages to be sent in the clear.
Further security is provided by mutual authentication of the BSU and SU using the Network Secret. The Network
Name can be 2 to 32 characters in length.
• Operational Mode: This field indicates the operational mode of the unit – 11a, 11b, or 11g – depending upon the
specific Tsunami MP.11. This operational mode cannot be changed as it is based upon a license file.
• Dynamic Data Rate Selection (DDRS) Status: The DDRS Status is configurable only for the WORP Base Mode.
For WORP Base Mode, select the DDRS Status “Enable” or “Disable” from the drop-down box provided.
For the WORP Satellite Mode, DDRS Status is read-only parameter and its value is based upon the WORP Base to
which this SU is associated.
When you enable or disable DDRS on the BSU, the BSU sends an announcement to the SUs and the SUs enable or
disable DDRS automatically.
• Transmit Power Control (TPC): By default, the unit lets you transmit at the maximum output power for the country or
regulatory domain and frequency selected. However, with Transmit Power Control (TPC), you can adjust the output
power of the unit to a lower level in order to reduce interference to neighboring devices or to use a higher gain
antenna without violating the maximum radiated output power allowed for your country. Also, most countries in the
ETSI regulatory domain require the transmit power to be set to a 6 dB lower value than the maximum allowed EIRP
when link quality permits. You can see your unit’s current output power for the selected frequency in the event log.
The event log shows the selected power for all data rates, so you must look up the proper data rate to determine the
actual power level.
NOTE: This feature only lets you decrease your output power; it does not let you increase your output power beyond
the maximum allowed defaults for your frequency and country.
Select one of the following options and click OK at the bottom of the window. Your original output power is adjusted
relative to the value selected. The new setting takes effect immediately without rebooting:
NOTE: 24 Mbps and lower modulation have maximum +16 dBm TX power, 36 Mbps has maximum +13 dBm TX
power, 48 Mbps has maximum +12 dBm TX power, and 54 Mbps has maximum +11 dBm TX power. Because
higher modulation has a lower maximum TX power, the total TPC range is smaller at a higher data rate.
Because the minimum TX power is equal for all data rates, each TPC selection has constant TX power for all
data rates except where the maximum TX power is limited.
• Enable Turbo Mode: Check this box to enable Turbo Mode. Turbo Mode is supported only in the United States, and
only for the 5054-R.
Enabling turbo mode, in its current implementation, allows the unit to use two adjacent frequency channels to transmit
and receive a signal. By enabling turbo mode, the receive sensitivity improves by 4 dB for the 36 Mbps data rate and
by 2 dB for the 24 Mbps data rate.
NOTE: The additional sensitivity is provided with the impact of using twice as much spectrum and thus increasing the
opportunity of interference and decreased ability for system collocation. Generally, Turbo mode is not
recommended except when the extra sensitivity is absolutely required.
• Frequency Channel: The frequency channel indicates the band center frequency the unit uses for communicating
with peers. This frequency channel can be set in several ranges, depending upon regulatory domain. Refer to
Country Codes and Channels for channelization information.
TPC Selection (dB) Maximum TX Power (dBm)
0 (default) 16
-3 13
-6 10
-9 7
-12 4
-15 1
-18 (minimum TPC level) 0