JDTECK CB-819 User manual

Specifications:
Signal Booster User’s Manual
Models: CB-819 / CB-918 / CB-806
CB-819 CB-918 CB-806
Model
Uplink (Mhz)
Downlink (Mhz)
825-845
870-890
1850-1910
1930-1990
890-915
935-960
1710-1755
1805-1850
805-821
850-866
Output Power (dBm)
Uplink / Downlink
33/0 (Typ)
30/0 (Min)
33/0 (Typ)
30/0 (Min
33/0 (Typ)
30/0 (Min
33/0 (Typ)
30/0 (Min
33/0 (Typ)
30/0 (Min
33/0 (Typ)
30/0 (Min
Min. Gain (dB)
Uplink / Downlink
15 / 15 15 / 15 15 / 15 15 / 15 15 / 15 15 / 15
Power Consumption
DC 12V / 2A
Connector
SMA - Female
Weight
250g
Dimensions
100 x 75 x 25mm
Version 1.0

Table of Contents
• Introduction ………………………………………………………3
• Installation Procedures…………………………………………. 4
• Troubleshooting………………………………………………….6
• FCC Statement…………………………………………………..7
• Specifications……………………………………………………8
FCC Statement
PLEASE NOTE: It is normal for your booster to be quite warm while in use.
Note: 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 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 which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
RF Exposure Requirements:
The antenna used for the transmitter must not be connected to, or operating in conjunction with any other antenna
or transmitter.
Vehicle Antenna Installation:
- The Antennas used for this transmitter must not exceed 3dBi of gain with a minimum cable loss of 2.9dB.
- For vehicle antenna placement, the antenna must be located at least 20cm away from the rear-seat passengers
and by standers in order to comply with the FCC RF exposure requirements.
Failure to observe these requirements will result in exceeding the FCC RF exposure limits.
2 7

Installation Procedures – Cont’
Indoor Setup
1. Decide on a suitable place for installing
the booster. It is advisable to have as close
as possible to the mobile phone.
2. Connect the antenna (1) to the booster
(3) connector marked “antenna”. Locate
antenna at least 20cm from nearby persons.
3. Connect the signal lead (4) to the
booster (3) marked “signal adapter”. Connect the signal adapter (4) to the cell
phone adapter.
4. Connect the optional power transformer (2) then switch on.
5. The signal will take about 5-10 seconds to be amplified and will be increased
gradually.
Introduction
The JDTECK Signal Booster is ideal for use in motor vehicles, boats, home or
office use, where there may be a weak signal in the cellular network. This poor
reception may be the result of distance from the nearest cell tower or the
presence of obstructions between the cell tower the receiving device.
The Booster provides amplification of transmit and receive signals for improving
voice quality or data transfer range and access. Different models are available for
virtually any mobile network across the globe.
Features:
• High power output for improved
performance.
• Easy Do It Yourself Installation.
• Compatible with most Hands Free
Kits.
• Lightweight and Compact.
• FCC Approved
• 1 Year Warranty
Troubleshooting!
If after turning on the booster and waiting 5-10 seconds, there is no signal
increase shown on the indicator, check the following:
1) The power LED on the booster is on.
2) All connectors are connected properly and secure.
3) Relocate the antenna.
• Can improve reception of any device on the mobile network.
6 3

Installation Procedures
In vehicle Setup (Direct Connect)
Tip!
The External
antenna port is
usually located
behind a rubber
stopper at the back
of your phone near
the antenna.
A. Firstly install your antenna. (1)
B. Route the cable to inside the vehicle and
connect to the booster (3) socket
marked “antenna”.
C. Connect the signal lead (4) to the
booster (3) marked “signal adapter”.
D. Connect the signal adapter (4) to the cell
phone adapter.
E. Plug the power cable into the booster (3)
power input and the other end (5) into the cigarette socket of the vehicle. The
signal will take about 5-10 seconds to be amplified and will be increased
gradually.
Installation Procedures – Cont’
In vehicle Setup (Hands Free Kit)
A. Firstly install your antenna and HFK.
B. Route the cable to inside the vehicle and
connect to the booster (3) socket marked
“antenna”.
C. Connect the HFK cable (1) to the booster
(3) marked signal adapter.
D. Plug the power cable into the booster (3) power input and the other end (5)
into the cigarette socket of the vehicle.
E. Turn on the switch. The signal will take about 5-10 seconds to be amplified
and will be increased gradually.
Installation Tip!
• Magnetic mount antennas need to be placed on a metal surface at
least 5-8” sq. for the system to perform well.
• You may use the 3ft signal lead supplied with your booster to mate
between the HFK and the booster.
5