Redline Communications Inc. AN100UA 用户手册

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页码 119
 
Red
MAX
 
Base Station
 
User Manual
 
 
 
Doc. #70-00058-01-01 
Proprietary Redline Communications © 2007 
July 13, 2007 
Page 60 of 119
 
the channel size and not exceed the granted frequency range. For example, when using a 
7 MHz channel, the center frequency must be at lease 3.5 MHz inside the band limits. 
Important: RF Channel Settings 
Operation in the FWA band is subject to license. The radio frequency selections must 
be set correctly before the installed system is allowed to transmit. The installed system 
must comply with all governing local, regional, and national regulations. Contact 
authorities in the country of installation for complete information regarding the licensing 
regime and operating restrictions for that regulatory domain. 
 
RF Channel Separation KHz: (
*
) Select the separation between channels (HD-FDD 
radio only) where:  
UL Channel = DL Channel + Separation.
 
Tx Output Power dBm: Select the output power level (dBm) of the radio. 
Important: RF Power Settings 
Operation in the FWA band is subject to license. The radio power selections must be 
set correctly before the installed system is allowed to transmit. National Interface 
documents may identify a maximum output power for the wireless system, expressed in 
terms of an EIRP level that must not be exceeded. The installed system must comply with 
all governing local, regional, and national regulations. Contact authorities in the country 
of installation for complete information regarding the licensing regime and operating 
restrictions for that regulatory domain. 
 
SS Tx Power Control Enable: Check   this box to allow the base station to 
automatically adjust the transmit power level of subscribers. When enabled, the base 
station continually monitors the subscribers and adjusts the transmission power to 
maintain a requested RSSI value.  
Reference RSS: Select the target value for average Received Signal Strength (RSS) for 
subscribers. The Reference RSS setting is the target value for average Received Signal 
Strength (RSS) for subscribers RF signals received by the base station. This target value 
allows automatic adjustment of the subscriber Tx power for optimum performance with 
the minimum of RF interference. The suggested default setting values are indicated in the 
following table: 
Table 18: System - Wireless Channel Reference RSSI 
Channel Size 
Initial Setting 
3.5 MHz 
-75 dBm 
7.0 MHz 
-72 dBm 
 
These are the suggested initial settings; adjustments to this target value must be made 
based on the individual RF characteristics of each deployed sector. The RSSI value 
(dBm) for each subscriber can be monitored using the base station SS Info screen (Web 
interface). Tx power adjustments are based on a number of factors, and differences of up 
to 7 dB may be observed between the Reference RSS setting and measured RSSI. 
Auto Rx Gain Enable: Check   this box to enable automatic adjustment of the receiver 
sensitivity. 
PHY Parameters 
Band Select MHz: (
*
) Select channelization type in accordance to 802.16 OFDM PHY 
system profiles.