Redline Communications Inc. AN80IE 用户手册
&
User
AN-80i
Manual
70-00072-01-07
Proprietary Redline Communications © 2010
Page 36 of 106
Sept 18, 2008
DFS Action: Select the mode of operation for DFS.
The system set to PTP Master monitors for interference from radar devices and other
equipment using the same channel frequency. When interference is detected, the
system automatically takes the action selected using the drop-down menu.
equipment using the same channel frequency. When interference is detected, the
system automatically takes the action selected using the drop-down menu.
None: The DFS function is disabled.
Tx Off: When radar signals are detected the transmitter is switched off for 30
minutes. This action is recorded in the message log and an SNMP trap message is
sent (if SNMP enabled).
minutes. This action is recorded in the message log and an SNMP trap message is
sent (if SNMP enabled).
Following an interval of thirty minutes, the same channel is monitored for one minute
and if there are no DFS triggering events, the system resumes normal operation. If
DFS trigger conditions are still detected, operation is suspended for an additional
thirty minutes. This cycle continues until no DFS trigger events are detected or the
operator manually reconfigures the system.
and if there are no DFS triggering events, the system resumes normal operation. If
DFS trigger conditions are still detected, operation is suspended for an additional
thirty minutes. This cycle continues until no DFS trigger events are detected or the
operator manually reconfigures the system.
Chg Freq: When radar signals are detected the transmitter is switched to a different
frequency. This action is recorded in the message log and a trap message is sent (if
SNMP enabled).
frequency. This action is recorded in the message log and a trap message is sent (if
SNMP enabled).
The new channel is selected based on allowable frequencies for the regulatory
region of that installation. The channel is monitored for one minute before the system
is allowed to transmit. If DFS triggering events are detected, the next available
channel is selected and monitored. The system is not allowed to return to a channel
on which DFS trigger events were detected for a period of thirty minutes. If DFS
trigger events are detected on all channels, operation is suspended until the thirty-
minute time interval expires for at least one channel.
region of that installation. The channel is monitored for one minute before the system
is allowed to transmit. If DFS triggering events are detected, the next available
channel is selected and monitored. The system is not allowed to return to a channel
on which DFS trigger events were detected for a period of thirty minutes. If DFS
trigger events are detected on all channels, operation is suspended until the thirty-
minute time interval expires for at least one channel.
Important: Where DFS is required by regional regulations, this feature is permanently
enabled at the factory and can not be disabled by the installer or end-user.
enabled at the factory and can not be disabled by the installer or end-user.
Antenna Gain: Enter the gain (dBm) for the system antenna.
It is important that the Antenna Gain setting matches the actual antenna gain. If the
antenna gain is set higher than the true antenna gain, the system is less sensitive to
detecting interference, and is not operating in compliance with the UK/ETSI standard. If
the antenna gain is set lower than the true antenna gain, the system is more sensitive to
interference and this may result in false DFS triggers.
antenna gain is set higher than the true antenna gain, the system is less sensitive to
detecting interference, and is not operating in compliance with the UK/ETSI standard. If
the antenna gain is set lower than the true antenna gain, the system is more sensitive to
interference and this may result in false DFS triggers.
ATPC Enable: Check this box
to enable the AN-80i to monitor the received signal
and request that the remote system adjustment its transmit level for optimum
performance. The ATPC feature must be enabled on both AN-80i units.
performance. The ATPC feature must be enabled on both AN-80i units.
Important: When ATPC is enabled, best results are obtained by enabling adaptive
modulation.
Adaptive Modulation: Check this box
to enable the AN-80i to automatically adjust
the transmission modulation and code settings to achieve the highest UBR that will
operate with a packet error rate (PER at layer 2) of less than 1x10e-6. If the PER
exceeds 1x10e-6, the AN-80i automatically adjusts the modulation and code settings
downwards (i.e., from 16 QAM 3/4 to 16 QAM 1/2) to operate at a lower UBR where the
PER is acceptable. When disabled, the modulation and code settings are entered
manually using the Uncoded Burst Rate setting. See Table 10: Maximum TX Power
Settings (dBm) for AN-80i Radio.
operate with a packet error rate (PER at layer 2) of less than 1x10e-6. If the PER
exceeds 1x10e-6, the AN-80i automatically adjusts the modulation and code settings
downwards (i.e., from 16 QAM 3/4 to 16 QAM 1/2) to operate at a lower UBR where the
PER is acceptable. When disabled, the modulation and code settings are entered
manually using the Uncoded Burst Rate setting. See Table 10: Maximum TX Power
Settings (dBm) for AN-80i Radio.
Modulation Reduction Level: Enter the number of modulation/coding levels to step
down during re-transmission of errored wireless packets. Each step down lowers the
UBR. The level can be set from 0 to 7 (recommended value = 2).
down during re-transmission of errored wireless packets. Each step down lowers the
UBR. The level can be set from 0 to 7 (recommended value = 2).