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Before installation, ensure adequate separation between the locations of the outside antenna and Inside antenna – at least 25 ft.

1. FIND AREA OUTSIDE WITH STRONGEST SIGNAL

Using your phone, identify the outside location with the strongest signal. Generally, this is found on the side facing your nearest cell 

tower and as high as possible. 
Note that Bars are not always a reliable measure of signal. The best way to confirm signal coverage is the ability to place and hold a 

call.  For specific dB signal measurements, use the methods below. Note that dB measurements appear as a negative number where the 

closer to 0, the stronger the signal (eg. -100 dB would be considered a weak signal while -65 dB a strong signal). 

Apple iPhones: Dial *3001#12345#* and press Call. In the top-left corner, a dB number appears instead of bars.
Android devices: download the app “Network Signal Info” in the Google Play store.

This signal booster requires a minimum cellular signal reading of -100dB at the location of the outside antenna. Signal between -70dB 

and -90dB is recommended for best performance. 

Please note: Signal stronger than -50dB may cause the affected frequency bands to turn off.

2. INSTALL THE OUTSIDE ANTENNA

Once you have located the area of strongest signal, mount the antenna to a pole or pipe (not 

included) at the highest possible elevation. The directional Yagi antenna works best when facing 

the direction of your carrier’s cellular tower. To find the location of your carrier’s closest cell tower 

go to www.cellreception.com. 
To install the outside antenna, assemble the u-bolt, bracket, nuts and washers as shown in the 

illustration. Keep the connections loose enough to allow the antenna to rotate until the optimum 

direction is found. 
Note: The outside antenna may be installed on a variety of pipe angles. Ensure that the mounting 

area has at least a 12-inch radius clear of obstructions and other radiating elements and orient 

the antenna vertically with the drip hole at the bottom. 
Once the outside antenna is secured to a pipe or pole, connect one end of the provided 50 ft. 

coax cable to the antenna and tighten the connection.

3. INSTALL THE SIGNAL BOOSTER AND INSIDE ANTENNA

Choose a location for mounting the directional panel antenna on vertical surface. The antenna should be at the approximate height of 

your cell phone when in use and facing a central area where signal is needed. Please note: Be sure to provide enough separation from 

outside antenna - at least 25 ft. Also, the outside and inside antennas should face away from one another.
Using the plate, mark position of desired screw placement and screw mounting plate into place with the slide panel protruding towards 

you (see panel antenna illustration below). Slide antenna securely onto mounting plate.
To install the booster, select a location that is near the inside panel antenna and a working AC outlet. Use the supplied screws or 

appropriate screws for surface of mounting location and drill through screw tab holes on booster (see 

Booster Components Diagram

 

illustration) and mount the booster to a wall.
Connect the inside antenna and booster by connecting one end of the provided 20 ft. of coax cable to the inside antenna and the other 

end of the cable to the booster port marked “INSIDE” and hand-tighten the connection. 
Next, connect the outside antenna and booster by connecting the remaining end of the 50 ft. cable leading from the outside antenna 

to the port of the booster marked “OUTSIDE”.

4.  CONNECT POWER

Connect the AC power cord to the booster and plug into a 110V AC power outlet. Once the booster has been completely assembled, 

turn the booster’s power switch on. 

Note: If the Power LED does not turn ON or the Alert LEDs continue to flash, see the Troubleshooting section. This booster is rated for 5-15V input 
voltage. DO NOT use the booster with a higher voltage power supply. This can damage the booster, cause personal injury and void your warranty.

CONFIGURE GAIN SETTINGS

The SureCall gain dials should be at maximum level and only reduced if other recommended actions do not resolve the issue. Only the 

presence of a RED/YELLOW LED indicates the presence of an unresolved issue. 
In any of these cases, the first action should be to increase the antenna isolation between the inside and outside antenna as much 

as possible and restart the booster. If the situation continues, you can reduce the booster gain in 5dB increments until the LED status 

resolves.

Coax Cable (50 ft)

Power Supply

Signal Booster

Inside Antenna

Outside Antenna

Coax Cable (20 ft)

Install Overview

Quick Install Guide

Outside Antenna Assembly

Nut

Washer

U-bolt

Bracket

Download the complete manual at www.SureCall.com

SC-FusionPro  /  854328008633  05.14.20

Contents

Connector to Outside Antenna

Power Jack 

Power Switch

 Connector to Inside Antenna

44

OFF

54

64

44

OFF

54

64

45

OFF

55

65

52

OFF

62

72

51

OFF

61

71

Booster Components Diagram

Troubleshooting

Problem

Resolution

Signal booster has no power

Connect the power supply to an alternate power source.
Verify that the power source is not controlled by a switch that has removed power from the outlet.
If the POWER LED on the signal booster remains OFF, contact tech support at: 1-888-365-6283 

or [email protected]

After completing installation, 

indoor signal coverage has not 

improved

(1) Verify that all cable connections are tightly fitted. (2) Try further separating the booster and 

antenna. (3) Verify that there is usable signal where the outside antenna is placed.

 Remember:

 Bars are not always a reliable measure of signal. The best way to confirm signal 

coverage is the ability to place and hold a call. 

Specifications

FusionPro

Uplink Frequency Range (MHz):

698-716 / 776-787 / 824-849 / 1850-1915 / 1710-1755 

Downlink Frequency Range (MHz):

728-746 / 746-757 / 869-894 / 1930-1995 / 2110-2155

Supported Standards:

CDMA, WCDMA, GSM, EDGE, HSPA+, EVDO, LTE and all cellular standards

Input Impedance:

50Ω server / 50Ω donor port

Maximum Gain:

72 dB

Noise Figure:

8 dB

VSWR:

≤2.0

AC Input:

Input AC110V, 60 Hz; Output DC 5-15V

Maximum Output Power:

1 Watt EIRP

Cable:

SC-400 / SC-240

RF Connectors:

N Female donor / N Female server

Power Consumption:

<15W

Operation Temperature:

-4º to +158º F

Certifications:

FCC ID: RSNF4HOME3

IC: 7784A-F4HOME3

Fremont, CA 94538 USA  |  +1-888.365.6283  |  [email protected]  |  www.surecall.com

© 2020. All Rights Reserved

This is a CONSUMER device.
BEFORE USE, you MUST REGISTER THIS DEVICE

 with your wireless provider and have your provider’s consent. Most wireless providers consent to the 

use of signal boosters. Some providers may not consent to the use of this device on their network. If you are unsure, contact your provider.
In Canada, 

BEFORE USE

 you must meet all requirements set out in ISED CPC-2-1-05. 

You 

MUST

 operate this device with approved antennas and cables as specified by the manufacturer. Antennas 

MUST

 be installed at least 20 cm (8 inches) 

from (i.e., 

MUST NOT

 be installed within 20 cm of) any person.

You 

MUST

 cease operating this device immediately if requested by the FCC (or ISED in Canada) or licensed wireless service provider.

WARNING

: E911 location information may not be provided or may be inaccurate for calls served by using this device.

This device may operate in a fixed location only, for in-building use.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:  (1)  this device may not cause harmful interference, 

and (2) this device must accept any interference received, including interference that may cause undesired operation.

3-Year Warranty 

Thank you for your SureCall purchase. Please register your new product at 

www.surecall.com/activate

 (US) or 

www.surecall.com/CA/activate

 (Canada)

SureCall warranties its products for three years from the date of purchase against defects in workmanship and/or materials. 
Products returned by customers must be in their original, un-modified condition, shipped at the customer’s expense in the original or 

protective packaging with proof-of-purchase documentation enclosed and a Return Merchandise Authorization (RMA) number printed 

clearly on the outside of the shipping container. RMA numbers are obtained by contacting Customer Support.
This warranty does not apply to any product determined by SureCall to have been subjected to misuse, abuse, neglect, or mishandling 

that alters or damages the product’s physical or electronic properties.
For complete warranty text, including limitations and liability, see the FusionPro full user manual, available online.

Have questions?

We have answers! Reach out to our US-based support team:

Call:

  

1-888-365-6283

Email:  

[email protected]

Visit:

  

www.surecall.com/support to download the user manual for: 

 »

  Detailed setup instructions 

»

  Troubleshooting tips 

»

  Warranty information

Outside Antenna - 

Directional Yagi

Outside Cable

 - SC-400, 50 ft

Inside Antenna - 

Directional Panel

Inside Cable

 - SC-240, 20 ft

Booster & Power Supply

If you Want to Improve Coverage

1.  Find a location that receives a stronger signal and relocate the outside antenna to that location.
2.  Optimize the Yagi antenna angle.
3.  Increase the distance between the outside and inside antenna.
4.  Set each dial on the booster to maximum gain.

LED Indicators

The gain dials on the booster should always be at maximum level unless a control light is flashing red-yellow. Additionally, they should 

only be reduced if other recommended actions do not resolve the issue.

Condition

Indication

GREEN SOLID

The booster is operating normally

YELLOW SOLID 
followed by GREEN SOLID

This is part of normal operation

.

 Indicates that uplink frequency is Inactive. 

After a period of time, if there’s no activity the band will go into sleep mode. 

GREEN FLASHING Slowly 
followed by GREEN SOLID

This is part of normal operation

. Indicates that the Automatic Gain Control (AGC) is self-adjusting. 

YELLOW FLASHING 

Quickly 
followed by GREEN SOLID

Automatic Gain Control (AGC) is-active and self-adjusting. 

This is part of normal operation.

This status appears on the booster to indicate AGC due to inadequate isolation between the outside 

and inside antennas.
Additional separation is recommended between the antennas to optimize performance (vertical 

separation works best).
Ensure that the antennas are aimed away from one another.

YELLOW/RED 
FLASHING

Indicates that the booster has detected oscillation caused by over-signal or interference. If this 

happens, try to further isolate the antennas. Consider the following options to resolve the condition: 
1.  Try increasing vertical distance between the outside and inside antennas.
2.  Check for sources of interference such as, cellular modems or hotspots. 
3.  Avoid placing either antenna near windows.
If condition continues, lower the dB gain setting in small increments until the LED status resolves.

WARNING: Do not attenuate the uplink and downlink dB settings below 35dB. This could cause the affected frequency band to 

turn off. 

SureCall Fusion Professional

Yagi / Panel Kit with 50Ω cable

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