
Bluetooth Vehicle Diagnostic Dongle I User Manual
DS100


Safety Is Always the First Priority!
Section 1 What's in the Box?
Section 2 Product Overview
Section 3 Getting Started
Section 4 Using the DS100 via the App
Section 6 FAQ
Section 7 Warranty
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Contents
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5
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4
For your safety, the safety of others, and to prevent damage to both the
product and your vehicle, read and fully understand all safety instructions in
this manual before use. Also review your vehicle’s service manual and follow
all stated precautions before and during any testing or service.
Keep yourself, your clothing, and any objects away from moving or hot
engine parts. Avoid contact with electrical connections.
Operate the vehicle only in a well-ventilated area to prevent carbon
monoxide poisoning. This gas, produced when the engine runs, is toxic
and potentially deadly.
Always wear approved safety goggles to protect your eyes from debris
and corrosive liquids.
Never smoke or use open flames near the vehicle during testing. Fuel and
battery vapors are highly flammable.
Do not use the device while driving—distraction can cause accidents.
Turn off the ignition before connecting or disconnecting the device from
the Data Link Connector (DLC) to avoid damage to the product or the
vehicle’s electronics.
Safety First—Always!
Safety Is Always the First Priority!

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DS100 Quick Reference Guide
Section 1
What's in the Box?
Quick Reference Guide
Always Good To Go
OBD II
DS100
SCANNER

6
Section 2
Product Overview
2
1

7
1. Status Indicators
2. OBD-II 16 Pin Connector
Connects the DS100 to your vehicle’s Data Link Connector (DLC).
Solid Green: Powered on
Flickering Blue: Communicating with the vehicle
Solid Blue: Bluetooth connected

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Section 3
Getting Started
3.1 Download the App
Search for “GOOLOO OBD” in the App Store (for iOS) or Google Play
(for Android).
Download and install the app on your smartphone or tablet.
Note:
Compatible with iOS 11.0 or later and Android 7.0 or later.
Figure 3-1
GOOLOO OBD GOOLOO OBD

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3.2 Register & Log In
Open the app.
If you already have an account, log in with your email and password.
If you don’t have an account, register using your email address.
Enable Wi-Fi, Bluetooth, camera, and location services on your phone
to allow the app to function properly.
Figure 3-2

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3.3 Bind the VCI (Vehicle Communication Interface)
After launching the app, follow the on-screen instructions.
You can bind the VCI in either of the following ways:
Figure 3-3
Option 1: Code Scanning
Tap Scan to Activate (see Figure 3-3).
The device’s serial number and activation code will be detected automatically.
Tap Activate to continue.
Once activated, the app will take you to the home page.
3.3.1 Bind the VCI via Code Scanning

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Figure 3-4
1.Insert the DS100 into your vehicle’s Data Link Connector (DLC)
as shown on-screen.
2.Tap I have plugged in the device (see Figure 3-4) to proceed.
3.3.2 Bind the VCI via Bluetooth

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Figure 3-5
3. Start your vehicle’s engine when prompted by the app,
then tap Next.

13
Figure 3-6
4. Confirm the DS100’s LED is solid green (powered on).
5. Search for the device in your phone’s Bluetooth settings.
6. When paired successfully, the LED will turn solid blue.

7. From the list of available Bluetooth devices, select DS100.
8. Once connected, the device’s serial number (SN) and
activation code will be read automatically,Tap Activate.
14

The first time you use the diagnostic function, you must download the software
specific to your vehicle.
Go to Me > Device Management > Select Now> Your Brand> Confirm>Download.
Select and download the required software package.
15
3.4 Download the Diagnostic Software
Figure 3-7

To locate the vehicle's DLC, tap Service > DLC Location, select vehicle make, model
and year, and tap Next. A picture of DLC location for the selected vehicle will display.
Note: Make sure the ignition is OFF before plugging in the unit.
Figure 3-8
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3.5 Plug the DS100 into the Vehicle's DLC

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3.6 Turn the Ignition to the “ON” Position
Switch your vehicle’s ignition to the ON position (see Figure 3-9).
For vehicles with a keyless start system:
• Press the Engine Start/Stop button without pressing the brake pedal.
• This will put the vehicle into ON mode without starting the engine
(see Figure 3-10).
Ignition methods may vary by model—refer to your vehicle’s service
manual if needed.
ENGINE
START
STOP
Figure 3-9 Figure 3-10

3.7 Bluetooth Connection
From the list of available Bluetooth devices, select DS100.
Tap the Bluetooth icon in the top-right corner of the app screen to
establish connection.
• Once connected, the icon will change to confirm pairing.
After successful pairing, the app will auto-connect to the DS100 in
future sessions.
If not connected automatically, tap the Bluetooth icon again to reconnect.
Note: A firmware update prompt will display. Tap Update to continue.
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Figure 3-11

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Figure 4-1
Section 4
Using the DS100 via the App
4.1 Home Screen
1
2
3
1. Main Functions
Supports full-vehicle system diagnostics:
Engine, Transmission, Airbag, ABS, ESP,
TPMS, Immobilizer, Gateway, Steering,
Radio, and Air Conditioning.
Full Vehicle
Health Check

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2. Other Functions
Maintenance
Reads and clears engine DTCs; marks
severity as Critical, Minor, or Can Be
Ignored; provides fault details and repair
recommendations.
Combine — View up to four related data
streams together to compare trends over time.
Graph — Display data as a line chart or gauge.
Report — Generate a data-stream report.
Record — Record live data streams for playback.
Displays real-time battery voltage with
reference values.
Records voltage trend over time.
Records battery cranking data.
Displays vehicle speed/RPM via HUD.
HUD supports Mirror Mode for windshield
projection.
Engine Inspection
Live Data
Battery Test
Hud
① Oil Reset
When the vehicle reaches the specified mileage or time interval, the
service reminder illuminates. After service, reset the service mileage/inter-
val to zero to turn off the reminder and start a new cycle.
②Throttle Adaptation
After ECU power loss or throttle body replacement/cleaning, use Throttle
Adaptation to initialize the throttle actuator and reset ECU learned values
to baseline, ensuring accurate air-intake control.
③EPB Reset
When the brake pads reach the wear threshold, the pad-wear sensor
signals the ECU and a warning light turns on. After replacing the pads,
perform the brake pad reset to clear the warning.
④BMS Reset
After replacing the vehicle battery, perform a BMS (Battery Management
System) reset to clear stored low-charge DTCs and register the new
battery with the control module.

The toolbar gives you quick access to key sections of the app:
Note: You can open the in-app online chat tool by tapping the chat icon,
then select START CHAT.
Return to the main screen.
Purchase or renew diagnostic software licenses.
Access repair guides, DLC location, and other resources.
Manage your account, saved data, and reports.
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3. Toolbar
⑤TPMS Reset
When a tire is under- or over-inflated, the TPMS sensor signals the ECU
and the TPMS warning light turns on. Adjust the tire to the specified
pressure, then perform a TPMS reset to clear the warning.
⑥DPF Regeneration
Uses controlled oxidation to burn off particulates in the diesel particu-
late filter, restoring optimal performance.
Smog Check
Diagnose in-use vehicles to identify causes of excessive emissions, then
perform targeted maintenance to restore and maximize emission-con-
trol performance.
Performance Test
Set the start and end speeds, then complete the run in the shortest
time. Also records elapsed time over a fixed distance. Typical setting:
0–100 km/h.
Home
Mall
Service
Me

Figure 4-2
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To run an Auto Scan or perform Individual System Diagnostics:
Tap Full Vehicle Health Check from the home screen.
The diagnostic software menu will display.
4.2 Full Vehicle Health Check
Identify your Vehicle
Auto Scan
To run a full vehicle health check, first identify your vehicle.
Enter the Vehicle Identification Number (VIN) manually, or tap Read to
retrieve it, then tap Confirm. The DS100 will automatically decode the VIN
to identify the vehicle.
Auto Scan detects the systems supported by the vehicle and retrieves
DTCs for all of these systems, providing a complete health check of your
vehicle. Performing Auto Scan before and after repair could help in
troubleshooting and validating repairs. Pre and post scan reports can
allow you to record the condition of the vehicle before and after repair
for comparison.

Figure 4-3
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To perform an Auto Scan, tap the Scan button. The DS100 will start
scanning all the systems supported by the vehicle, and DTC retrieval will
be automatically proceeded.
Results are displayed progressively as the systems are scanned.

Figure 4-4
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Button Description
Report - tap to save the results in report format. (To view the saved
reports, go to Me > Diagnostic Report.)
Clear DTCs - tap to clear all the DTCs retrieved.
Show All / Show Actual - tap to toggle between showing all vehicle
systems and showing only the supported systems.

Figure 4-5
Identifying the Vehicle
To perform Engine Inspection, you need to identify your vehicle first.
4.3 Engine Inspection
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Figure 4-6
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Icon Description
Tap to open a window that allows you to search on Google for
more information about the DTC.
When the icon lights up, tap to view the detailed description
of the DTC.
When the icon lights up, tap to view the freeze frame
captured at the time when the DTC occurs.
?

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Button Description
Report - tap to save the results in report format. (To view the
saved reports, go to Me > Diagnostic Report.)
Clear DTCs - tap to clear all the DTCs retrieved.

Figure 4-7
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4.4 Live Data
To view data stream for the currently selected system:
Tap Live Data in the function menu.
A data stream list displays.
Button Functions
• Edit — Customize your data stream list. Select the checkboxes for
the parameters you want to track, then tap OK.
• Report — Save the current data stream values as a diagnostic
report. To access saved reports, go to Me > Diagnostic Report.

Figure 4-8
• Record — Record and save live data for comparison or analysis. To
view saved data, go to Me > Data Stream.
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• Each item in the list shows the parameter name and its current value.
• Tap the icon next to an item to open its settings screen.
• Data streams can be displayed in three formats:
– Numeric values
– Graph view
– Gauge view
Viewing Data Streams

Figure 4-9
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Combine Function
• For easier comparison and monitoring, the Combine feature lets you
display up to four data streams in a single graph.
How to use Combine:
Tap the display icon to switch the view mode.
Return to the data stream screen.
Select the parameters you want to combine.

Figure 4-10
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Tap the Full Screen icon on the right side of the screen.

Figure 4-11
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On the full-screen display, tap Combine.
Select up to four data streams to view together in a single graph.
Tap OK (or confirm). The selected data streams will be shown together
in a combined graph.
Important Safety Note:
If live data must be viewed while the vehicle is moving, always have a
second person assist you.
• Do not attempt to watch the data stream while driving.

Displays real-time battery voltage with reference values.
Logs voltage trend over time.
Records battery cranking data.
Start Testing > Turn off all Systems > Start Vehicle
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4.5 Battery Test
Figure 4-12

Displays vehicle speed and RPM via HUD.
HUD supports Mirror Mode for windshield projection.
4.6 HUD
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Figure 4-13

The DS100 supports 6 special functions, including Oil Reset, Throttle
Adaptation, Electronic Parking Brake (EPB) Reset, Battery
Management System (BMS) Resets, and Tire Pressure Monitoring
System (TPMS) Reset, Diesel Particulate Filter (DPF) Regeneration.
4.7 Maintenance
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Oil Reset
This function allows you to reset the oil service lamp for the engine
oil life system, which calculates an optimal oil life change interval
depending on the vehicle driving conditions and weather events. Oil
reset is required every time the engine oil is changed.
TPMS Reset
When a tire is under- or over-inflated, the TPMS sensor sends a signal
to the ECU and the warning light turns on. Adjust the tire to the
specified pressure, then perform a TPMS reset to clear the warning.
EPB Reset
This function helps you replace and reset the brake pads.
It needs to be performed in the following cases:
• After the brake pads and brake pad wear sensor are replaced;
• When the brake pad warning light is on;
• After the servo motor is replaced.
BMS Reset
After the car battery is replaced, the car battery control unit needs to
be reset. This will clear fault information (such as low battery level) so
that the control unit can match the relevant information of the newly
replaced battery.
Throttle Adaptation
If the ECU is disconnected accidentally, or if the throttle is replaced
or cleaned, then the throttle actuators need to be initialized via the
Throttle Adaptation function. This resets the ECU's data to its initial
state so that the throttle can accurately regulate the air intake.
DPF Re
generation
This function is mainly used for the regeneration of diesel particulate
means of combustion and oxidation.

I/M Readiness (Inspection & Maintenance Readiness)
• Verifies whether emission-related systems are functioning properly
and ready for inspection.
• Can also be used to check the running status of system monitors.
Note: Your vehicle should only be considered ready for inspection—
and allowed to pass emissions—if all required tests have been
successfully completed.
4.8 Smog Check
Figure 4-14
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From the home screen, tap Performance Test.
A safety warning will appear. Read the warning carefully, then tap
OK to proceed
4.9 Performance Test
Figure 4-15
37

By default, the test measures acceleration from 0 to 60 MPH.
Accelerate your vehicle to begin the test.
Note:
If the vehicle does not reach the set end speed, the results will reset
automatically once the car slows back to the start speed.
Figure 4-16
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3 4
1
2

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Vehicle Speed
Engine Speed
Horsepower
Torque
Button Description
Start - tap to reset for the next run

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Figure 4-17
1/4 mi Test Results - record the elapsed time for a vehicle to travel
a certain distance (60 ft, 330 ft, 1/8 mi, 1000 ft, 1/4 mi), and the
instantaneous speed at each point (see Figure 4-18 and Figure 4-17).
0-60 MPH Test Results - record the elapsed time for a vehicle to
accelerate from 0 to 60 miles per hour (see Figure 4-16). The values
for the start and end speeds can be changed if desired.

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5.1 DTC Repair Guide
5.2 Technical Service Bulletins
5.3 DLC Location
5.4 Warning Light Library
The DTC Repair Guide is an experience-based database of generic
To use the DTC Repair Guide:
Tap Service > DTC Repair Guide . Enter a DTC in the
search bar to search.
To view technical service bulletins:
Tap Service > Technical Service Bulletins . Select
vehicle make, model, year, system and subsystem, and tap Next. A
list of OEM technical service bulletins issued for the selected vehicle
will display. Tap the desired option to view the full content.
To view DLC location:
Tap Service > DLC Location . Select vehicle make, model
and year, and tap Next. A picture of the DLC location for the selected
vehicle will display.
The Warning Light Library provides inf
ormation on dashboard
warning lights, including light descriptions, impacts on driving,
typical causes, responsive measures and relevant FAQs.
To use the Warning Light Library:
Tap Service > Warning Light Library . A list of warning
lights will display. Tap the desired option to view the details.
5. Service

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In the Me section, you can:
• View and edit your profile nickname.
• Check your email account and ID.
• Change your login password.
• Delete your account.
• Log out of your account.
6.1 Account Profile
6. Me
Figure 4-18

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6.2 Live Data
View saved data streams for future reference and analysis.
6.3 Diagnostic Report
Access and view saved diagnostic reports from this menu.
6.4 Diagnostics History
Access and view saved diagnostic history from this menu.
6.5 Device Management
Allows you to bind the VCI to your account.
6.6 Coverage List
View the list of vehicle makes and models supported by the DS100.
6.7 Firmware Update
Allows you to update the VCI firmware if a new version is available.
6.8 User Manual
User Manual Allows you to view the user manual of the DS100.
6.9 Help and Feedback
Help and Feedback Allows you to view the frequently asked questions,
customer service replies, and submit feedback.
6.10 Settings
The Settings function provides general setting options including
language setting, unit setting and cache clearing, and allows you to
view the SN, privacy and terms of service, privacy policy, third-party
components, and the contact information of technical support. You
can also check for updates in this function.

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Section 5
Bluetooth
Operating System Supported
Storage Temperature
Working Temperature
Dimensions
Net Weight
Version: Bluetooth 5.0
Range: 33 feet (10 m)
iOS 11.0 or later
Android 7.0 or later
-4
to 158 (-20 to 70 )
14 to 122 (-10 to 50 )
76 × 47 × 28 mm (2.99 × 1.85 × 1.10")
60 g (2.12 oz)

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Section 6
FAQ
What should I do if a communication error occurs?
Follow the below steps to identify the problem:
1) Check if the ignition is ON.
2) Check if the DS100 is securely plugged into the vehicle’s DLC.
3) Turn the ignition off. Then, turn it on after 10s and continue the operation.
4) Check if the vehicle’s control module is defective.
Q
A
Why do I need to download the diagnostic software after installing
the GOOLOO OBD?
Since there are various vehicle manufacturers, different diagnostic
software is required for different brands.
Q
A
What special functions do DS100 support?
The DS100 supports 6 special functions, including Oil Reset, Throttle
Adaptation, EPB Reset, BMS Reset, TPMS Reset, and DPF Regeneration.
Q
A
Do I need to update the firmware before using it for the first time?
Yes. Firmware will automatically update to the latest version once the
DS100 is connected with your phone via Bluetooth. You can also tap
Me > Firmware Upgrade to update the firmware manually.
Q
A
Can multiple devices be bound to one GOOLOO OBD App account?
Yes.
Q
A
How to activate VCI on automobiles after logging in?
After logging in to the account, enter Me >Device Management, tap“+”to
enter the device addition process, and follow the prompted steps to
activate the device.
There are two ways for VCI support: activation via Bluetooth connection
and activation via QR code scanning.
Q
A

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How many vehicle makes can be bound to one DS100 device?
Up to 3 vehicle makes can be bound to one DS100 device. If you want to
replace the previously selected makes, please delete the old makes before
adding new ones via Me > Device Management.
Q
A

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Section 7
Warranty
GOOLOO's One Year Limited Warranty
GOOLOO warrants to its original purchaser that the company's
products will be free from defects in material and workmanship for
12 months from the date of purchase (Warranty Period).
For the defects reported during the Warranty Period, GOOLOO will
either repair or replace the defective part or product according to its
GOOLOO shall not be liable for any incidental or consequential
damages arising from the device's use, misuse, or mounting.
local laws, the local laws shall prevail.
GOOLOO
This limited warranty is void under the following conditions:
• Misused, disassembled, altered or repaired by unauthorized stores
or technicians.
• Careless handling and/or improper operation.
Notice:
All information in this manual is based on the latest information
available at the time of publication and no warranty can be
made for its accuracy or completeness. GOOLOO reserves the
right to make changes at any time without notice.

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Regulatory Compliance
FCC ID: 2AVYW-CARPAL
IC: 32511-CARPAL
HVIN: GOOLOO OBD-DS100
FCC & ISED Statement:
This device complies with Part 15 of the FCC Rules [and contains
license exempt transmitter(s)/receiver(s) that comply with Innovation,
Science and Economic Development Canada’s licence-exempt RSS
standard(s)].
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 of the device.
L'émetteur/récepteur exempt de licence contenu dans le
présent appareil est
conforme aux CNR d’Innovation, Sciences et
Développement économique Canada applicables aux appareils radio
exempts de licence.
L'exploitation est autorisée aux deux conditions suivantes:
(1) l'appareil ne doit pas produire de brouillage, et
(2) l'appareil doit accepter tout brouillage radioélectrique subi,
même si le brouillage est susceptible d'en compromettre le
fonctionnement.
responsible for compliance could void your authority to operate the
equipment.
FCC VOC
This equipment has been tested and found to comply with the limits
for a Class B digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment
generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause

49
harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
-- Reorient or relocate the receiving antenna.
-- Increase the separation between the equipment and receiver.
-- Connect the equipment into an outlet on a circuit different from
that to whi
ch the receiver is connected.
-- Consult the dealer or an experienced radio/TV technician for help.
In case this equipment has to subject to FCC/IC SAR (Specific Absorption
Rate) exposure test, this equipment is designed to meet the requirements
for exposure to radio waves established by the FCC and ISED. These
requirements set a SAR limit of 1.6 W/kg averaged over one gram of tissue.
The highest SAR value reported under this standard during product
certification for use when properly worn on the body is within
regulatory limits.
FCC Caution
The device for operation in the band 5150-5250 MHz is only for indoor use
to reduce the potential for harmful interference to co-channel mobile
satellite systems.
IC Caution
1. The device for operation in the band 5150-5250 MHz is only for indoor
use to reduce the potential for harmful interference to co-channel mobile
satellite systems;
2. For devices with detachable antenna(s), the maximum antenna gain
permitted for devices in the band 5725-5850 MHz shall be such that the
equipment still complies with the e.i.r.p. limits specified for point-to-point
and non-point-to-point operation as appropriate.
1. les dispositifs fonctionnant dans la bande 5150-5250 MHz sont réservés
uniquement pour une utilisation à l’intérieur afin de réduire les risques de
brouillage préjudiciable aux systèmes de satellites mobiles utilisant les
mêmes canaux;
2. le gain maximal d’antenne permis (pour les dispositifs utilisant la bande
5725-5850 MHz) doit se conformer à la limite de p.i.r.e. spécifiée pour
l’exploitation point à point et non point à point, selon le cas.

Customer Service
12 Months Limited Warranty Service
Lifetime Technical Service
Feel Free to Contact Us
For FAQ and More Information
www.gooloo.com
1-888-886-1805
Mon.-Fri. PST 9:00a.m.-5:00p.m.

