User's Manual

CANAM TECHNOLOGY, INC. (CTI)

MARK-IV VHF BROADBAND SIGNAL BOOSTER M4BBDAV USER’S MANUAL

Page 6 of 13

Rev0 April/2015

Section B. SYSTEM DESCRIPTION

The system houses multi-carrier linear broadband power amplifiers and

automatic level control. The amplifiers are designed with special linear

characteristics for continuous operation, 100% duty cycle 24 hours/7 days a

week. Its modular construction allows easy access to the amplifier modules

and power supply.

It has a maximum gain around 60dB across the band. The output power

amplifier P1dB Compression point is around 20 Watts (+43 dBm). They also

have an automatic gain control range greater than 25dB.

The amplifiers modules are bolted down onto a heat-sink base. These heat

sinks have adequate capacity to dissipate five times the maximum

anticipated heat being generated by the amplifiers. It is recommended the

temperature of the room be maintained below 80

F to assure the longest

possible life of the amplifier transistors. The power supply has +28 VDC module

for the amplifiers, equipped with over current and over voltage protection

among other features. It will immediately drop the supply voltage to prevent

damage to other components.

The unit’s operational parameters are stored in the non-volatile memory of

the embedded controller; this allows the booster to operate on a standalone

basis. The built-in Web Server provides a Graphical User Interface (GUI) to

ease in remote monitoring & control. Access is obtained via a PC’s Web

Browser and a TCP/IP connection to the Unit. The system can be connected

directly to a PC computer or can be plugged into the local area network.

Some pages shown by the Web Server are the following:

 “Main Status”: depicts status alarm indicators and meters.

 “Main Settings”: is used to configure system-level macro settings.

Never operate the system without adequate Load/Termination on the RF Out

port. The Web Server allows to Mute/Un-mute Power Amplifiers in “Main

Settings” page. Make sure the power amplifiers are un-muted before start

with the test.