Romancell Technology Co. Ltd. SCP5560 Manuale Utente

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The users may 
verify the color of these 2 LED of the cell booster as an indication of 
the operational status. Users should follow the LED indication to solve the problem.
Normal operation: These 2 LED lit solid Red or Green, non blinking:
● 2 LED in solid RED but poor reception: 
Tune / Adjust the outdoor ANT direction / location as shown in 
P.5 to increase the incoming 
cell signal level which may improve both voice and mobile internet service coverage and 
quality.
 If the location of the residential house in fringe area like far away from cell tower or 
mountain area, valley, it may cause poor reception after carefully tuning / adjusting the 
outdoor ANT.
● 2 LED in solid Red but no reception:
Check all the connection are well connected as below:
a. Outdoor ANT + RF Adaptor + RG-6/U coaxial connector
b. RG-6/U coaxial connector + outdoor ANT connector of cell booster Indoor ANT 
c. Connectors cell booster + Indoor whip ANT 
d. RG-6/U coaxial connector + RF Adaptor + RG-6/U coaxial connector if the 17ft 
optional extension cable connection is used.       
 The users should power off and on 
again (Reset the power, P.3) the cell booster to 
ensure whether the new status is fine after any improvement procedure.
Abnormal operation: Any 1 or 2 LED blinking either Red or Green
● Blinking 1 or 2 RED LED: It is loop oscillation shut down. The users must turn off 
the DC power of the cell booster. Tune/adjust the outdoor ANT direction/location 
and / or extend the separation distance between the outdoor ANT and cell booster. 
Reset the DC power of the cell booster until the LED is in normal operation status. 
● Blinking Green LED indicates the outdoor ANT is facing toward proximity of the cell 
tower which captures excessive signal level. The users need to tune / adjust the 
direction / location of the outdoor ANT away from proximity of the cell tower and use 
the wall blockage of the residential house to reduce the excessive cell signal level of 
the proximity of cell tower and reset the cell booster.  
 
2 LED non lit:
● To verify the 110VAC power socket / strip first.
● If the AC power socket / strip is normally working, check the AC-DC Adaptor 
connection both AC or DC plug to ensure the power deliver to the cell booster.
● If the AC-DC Adaptor cannot deliver the DC power to the cell booster, consult your 
dealer for a new AC-DC Adaptor. 
Q:
 
How will the weather affect to the cell phone indoor reception?
A: 
Sunny or cloudy day will not affect the indoor reception. Rainy, snowy, foggy day    
will reduce the indoor reception coverage, especially heavy rain, snow, fog may affect 
more. Also, the rain, snow, fog has more influence on PCS Band for its higher 
propagation loss than cellular band. 
Q:
 
Why the loop oscillation is the most 
important issue for a cell booster 
installation? How can I verify and prevent from it? 
A:
 
The loop oscillation not only causes the cell booster to no longer serves the user’s 
link and 
not enough distance separation between the outdoor ANT and booster.
The users may check the 2 LED on the booster as the status indication of loop 
oscillation. Any 1 or 2 of the RED lit is blinking indicates loop oscillation of the cell 
booster. Remove the DC-plug from the DC jack of booster immediately, and follow the 
improvement procedure shown in 
P.5 or 6 until these 2 LED lit either solid Red or Green.
Q:
 
If my house is nearby the other operator’s cell tower and my cell operator’s tower 
is far from my house. How can I install and prevent the excessive signal level coming 
from the nearby cell tower?
A:
 
First, you should turn away the outdoor ANT direction from the nearby cell tower 
and choose another direction/location, also, by using the house wall as the blockage of 
the nearby cell tower. 
Q:
 
Can the cell booster serve multiple users simultaneously?
A:
 
Yes. The booster is designed for the multi-users operation for it is linear 
amplification and controls the overall power as well as blocking the interference of the 
cell tower.
Q:
 
Can the cell booster help Wi-Fi reception?
A:
 
No. It cannot help the home Wi-Fi reception for they are different frequency band 
between the cell band and Wi-Fi band.
Q:
 
Does this cell booster help 4G700 and AWS band?
A:
 
No, the cell booster only helps 800 (cellular) and 1900 (PCS) band.
All the mobile operators in 800 and 1900 band may be increased the reception inside the 
house by this booster.  
Q:
 
Is the cell booster helpful or harmful for human health?
A:
 
It is 
helpful for human health by installing the cell booster.
The cell booster makes the cell phone radiates lower RF power to cell tower than not 
using a cell booster inside the house. The lower RF power radiated from the cell phone 
is not only helpful for human health also extend the battery life span.
Q:
 
Why do we use a panel ANT instead of an omni-directional ANT?
A:
 
The panel ANT is a directional ANT which captures more cell signals from tower 
than the omni-directional ANT. That makes the panel ANT offers better service quality 
and larger indoor service area.