R tron SNTRIDC User Manual
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4. Operation
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User’s Manual
4. Operation
Alarms
•
Reported to Sprint : If an alarm occurs, the repeater will report directly to Sprint
as a SNMP Trap so the LED of ALARM on the repeater does not blink.
•
On Site Alarm : If an alarm occurs, the alarm LED on the repeater will turn on.
Please refer to the troubleshooting section of this manual.
• No change of the values in the alarm range is recommended.
< Alarm Status > < Alarm Range >
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4. Operation
Check CDMA in the left menu.
Setup
b. CDMA
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Solution 1. Easy Setup [Recommended]
Return To Factory Defaults
Step 1
Select Bandwidth and Band and click APPLY.
Step 2
• To reset to factory defaults, click INITIALIZE.
• To restore the previous settings, click RESTORE.
Easy Setup
Step 3
Easy Setup proceeds to:
• Isolation measurement On
• Calculation of Available Maximum Gain by the isolation.
• ASD On
•
ALC On to get Maximum DL Output Power 24dBm [Default] or
Maximum Gain 80dB.
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4. Operation
Click Execute.
Easy setup feature will measure the isolation and limit the maximum gain
accordingly. This will also enable Auto Level Control as well as Auto Shut
Down. These two features are strongly recommended to prevent the
uncontrolled power output, which could have an adverse impact on the
RF network and the repeater. For example, ALC will apply attenuation
automatically when the input signal strength is increased due to the new
base station deployment near the repeater site.
Click OK.
Step 4
Click OK again.
Step 5
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Setup will automatically begin. This process will take approximately 20
seconds.
Step 6
10~20 seconds
Click CDMA in the left menu.
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4. Operation
Constant Maximum DL Output Power 24dBm
if the DL Input Power >= -56dBm
Result 1
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4. Operation
Maximum Gain 80dB if the DL Input Power < -56dBm.
Result 2
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4. Operation
Solution 2. DL Output Power < Max. 24dBm
Repeat step 1 through step 6.
Step 2A
Step 1A
Change the level at Automatic Level Control and click APPLY.
After running Easy Setup or Isolation Measurement, Isolation value is displayed
with “95” when the isolation is higher than 95dB, or it is displayed with the actual
value when the isolation is lower than 95dB.
• Automatic Level Control: Type under 24 and then click APPLY and ON.
[Example]
For the repeater with 24dBm maximum output power, 80dB maximum gain/
40dB gain control range, → If the signal -36dBm and the ALC is set as 24dBm,
the gain will be 60dB to adjust to the output power.
If the input signal is -61dBm, the output power will be 19dBm by the limitation of
the maximum gain even though the ALC is set as 24dBm.
•
Automatic Shutdown: Type the desired values for dBm, seconds, and times
and then click APPLY and ON. (e.g. 27 dBm, 10 seconds, 3 times)
[Example]
For the repeater with 24dBm maximum output power, 80dB maximum
gain/40dB gain control range, Assuming ASD Level: 27dBm, ASD Time:
10seconds, ASD Count: 3.
If the output power is 27dBm (ASD LEVEL) and higher, the repeater will
shutdown for 10 seconds (ASD TIME). If shutdown occurs 3 times (ASD
COUNT), the 4th shutdown will be permanent.
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Constant output power set as the ALC level.
Result
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