SolidRF Signal Plus User manual
Signal Plus
Cell Phone Signal Booster
Manual
1
Manufactured and Warranted by
SolidRF Inc.
www.solidRFinc.com
customer service number:
Office (435) 319-6858
Toll Free (877) 579-7878
Operational Diagram
(How It Works)
Package Contents
Page 2
Installation Step By Step
Page 8 - 16
Trouble Shooting
Page 17 - 18
Technical Specification
Warranty Information
Page 19
Basic Signal Level Knowledge
Page 3
Preparation
Page 4 - 7
Safety Guidelines
Page 20
Working Diagram (How It Works)
Package Contents
1. The outdoor antenna catches the signal from the tower.
2. Sends outside signal to the booster through a coax cable.
3. The booster amplifies the signal then rebroadcasts the signal indoors to all mobile
devices within range.
4. The system also works in reverse; amplifying outgoing signal back to the tower.
The kit includes the following items:
1. Outdoor Antenna, Indoor Antenna;
2. Booster;
3. Power supply;
4. Splitter;
5. 3*30 ft&1*15 ft of RG6 cable;
The size of the coverage area and the strength of the boosted signal are
directly related to two key factors:
1. The signal strength received by the outdoor antenna. Therefore, setting up
external antenna where the signal is strongest will provide the best results.
2. Distance of separation between the outdoor and the indoor antennas.
2
Outdoor Antenna Booster Power supply RG6 cable
2*Indoor Antenna Splitter
1
2
3
Signal transmission loss and power level
Coverage area ability
3
Note: FCC regulations limit the amplification of all cell phone boosters in order to
prevent damage to the telecommunications infrastructure. Therefore, the maximum
coverage area of a booster depends on the original power level of the signal captured by
the outdoor unit.
Notice: Not recommended when outdoor signal strength is less than -110dbm(3G/1x)
or -120dBm(4G/LTE). The resulting coverage area of the boosted signal will be
prohibitively small.
Power level
at the outdoor antenna location
Coverage Area @ One Antenna
(sq. ft.)
Coverage Area @ Two Antenna
(sq. ft.)
Strong (5 bars on the cellphone)
5,000
8,000
Medium (3~4 bars on the cellphone)
2,500
4,000
Weak (1~2 bars on the cellphone)
600
1,000
Find your cell tower nearby!
There are a variety of resources available online, here is a third party website
recommended. Use it to locate your nearest cell tower: www.cellmapper.net
Preparation
Note: This is very important step. If we use the wrong direction, we
won't have good result.
Step 1: Visit website www.cellmapper.net
Step 2: Find your location on the map and zoom in on your area
4
www.cellmapper.net
Step 3:. Select Provider. You will find the cell tower around your
house.
5
Select Provider
Step 4: Find your cell tower
Click the red or green dot on the map that represents the base station, and the detailed
information of the base station will be displayed.
•The first important information, you can see from the above four pictures, the
coverage area (shaded part) of each base station is different. You have to find a base
station with signal coverage to your house, or the coverage direction is facing you,
and the coverage area is closest to you.
•The second important information,
you can scroll the information
content on the left to find the
specific carrier information of this
base station, including the
communication standard and
frequency band. Please reference
the left picture, “LTE” and “B2
FDD”(Band 2, FDD).
6
Find The dBm Reading On Your Phone
Having an accurate measurement of signal strength in decibels (dBm) is crucial when
installing your system. Decibels accurately measure the signal strength you are receiving.
Note: Turn off your cell phone’s WiFi to ensure you are checking the cellular connection.
The dBm reading will be refreshed every 30-60 seconds. Want faster results? Once you
have a reading, turn on airplane mode. Wait 15 seconds. Turn off airplane mode. The
signal strength reading is refreshed.
iPhone: dial *3001#12345#* then press call
Android: download third part APP-LTE Discovery
Band number
Receive level dBm
Receive level dBm
Band number
7
Step1: Select the Location for the Outside Unit
Note:This is the most critical step and will determine the overall performance of the
booster system.
1. Generally, the strongest signal will be located on the side of your home facing the
nearest cell tower. Keep in mind, the signal strength at ground level may be
different from the signal strength at or above the roofline due to obstructions
(trees, other buildings, etc.) that block the incoming signal. In most situations, the
strongest signal is found about 25 feet above the ground on the side of your home
facing the nearest cell tower.
2. The most ideal installation position is the corner of the building, choose the one
facing your cell tower.
8
Four corner of the building are the most ideal position
Choose the one facing your cell tower
Test Installation
We STRONGLY recommend doing a test installation before finalizing the installation.
Doing a test installation of your cell phone booster ensures that you will get the
optimal performance from your system.
Step 2: Temporarily Mount the Outside Antenna
In addition to the four corners of the building, the chimney and the pole above the roof
can also be selected. As long as the installation distance between indoor and outdoor
antennas is maintained enough, satisfactory results can also be achieved.
Use one of the three options to mount the outside antenna on your roof on the side of
the house with the strongest signal.
The height of the outside antenna should never exceed the highest point of your house.
This is a precaution against damage and safety concerns caused by lightning strikes to
the outside unit.
9
Caution
Trees will greatly attenuate wireless signals. If there are tall trees within 100 feet of the
house. At the same time you can't find a stable signal above 3 bars, the outdoor
antenna needs to be erected 60%(at least) to 80%(best) of the tree height. Never
exceed the trees!
But according to FCC
regulations, outdoor
antenna height cannot
exceed 30 feet.
At the same time, if the
antenna exceeds the roof,
please pay attention to
lightning protection
measures.
Step3: Select the Location for the Inside Antenna
Measure the Signal Strength Inside your Home
•Test your current signal strength in multiple locations throughout the home
•Record the current signal strength in the table provided for reference
Test Record
No
Location
Record(dBm)
1
2
3
4
10
In order to achieve the best signal coverage
effect, there is a certain distance requirement
between the indoor and outdoor units. Make
sure the inside and outside units are facing
away from each other.
Top view of antenna beam shape and energy distribution
•The radiation beam angle of indoor and outdoor antennas is about 90 degrees;
•In addition to signal radiation in front of the antenna, there is also energy radiation
behind the antenna;
Front FrontRear Rear
Outdoor antenna Indoor antenna
Minimum Required Separation Distance
Between Indoor and Outdoor Antenna：
Straight line distance over 30 feet(10 meters)
or
20 ft (6 meters) horizontal distance
13 ft (4 meters) vertical distance(As far as possible)
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