Cyfre CHACDMA-819 Installation Manual Download Page 1

 

 

 

 
 

Dual Band CHACDMA-819 Amplifier Installation Manual 

 

 

Page 1 of 3 

 

 

All brands and trademarks are the property of their respective owners. Copyright 
2003, Janizary Holdings, Inc. All rights reserved.  
Rev h   D00000515 

                 Designed and manufactured in North America 
                 Manufactured under license from Motorola Inc. 

 

 

Note:

 Before installing the Cyfre

 Amplifier, please read the entire contents of this manual. 

 

Section # 1 Parts List 

 

Item Qty Description 

1 1 

Cyfre

TM

 Signal Amplifier 

2 Meter (78”) DC Power Cable 

 

 

 

 

 

 

 

 

 

 

 

 

Section # 2 Tools and Other Materials Required 

 

Item Description 

Electric drill (as required for signal amplifier mounting holes) 

2 Screw 

driver 

Qty 4 screws (length and type as required for signal amplifier mounting) 

Wire cutters / strippers 

Qty 2 wire connection insulators or insulating material (as required for DC power cable connection to 12V DC system) 

 

Section # 3 WARNINGS! 

 

 

Directly wired vehicle antennas, mounted a minimum distance of 20 cm (7.87 inches) away from the body of any 
user or nearby persons is recommended.  

 

Mounting an amplifier in the engine cavity or on the underside of the vehicle will void the manufacturer’s warranty. 

 

Subjecting the amplifier to voltages greater than 30 Volts DC will damage the amplifier and void the manufacturer’s 
warranty.  

 

Any vehicle with an electrical system of greater than 30 Volts DC should use a step-down voltage regulator to bring 
the voltage within the DC operating power range of the amplifier (10 to 30V dc).  

 

Under no circumstances should the amplifier be powered up without a properly connected 50 ohm 800/1900 MHz 
dual band cellular/PCS antenna or the amplifier may be damaged, resulting in the manufacturer’s warranty being 
void. 

 

For optimum performance and compatibility with cellular service provider requirements, it is recommended that an 
external antenna with a maximum gain of 3dB be installed. 

 

Use of cellular amplifiers with antennas of higher gains than 3 dB gain is in violation of FCC regulations for which 
the offender will be fully liable, and warranty claims will be voided. 

 

It is recommended that only certified automotive installation technicians install this product in a vehicle.  Installation 
by any other person is at the risk of the vehicle owner and operator. 

 

Section # 4 Installation: Selecting a Suitable Location To Mount The Signal Amplifier 

 

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