Version COMPROD COMMUNICATIONS, LTD.
Technical Manual 2008, Comprod Communications LTD. 138 De La Barre Boucherville, QC, J4B 2X& Phone 1.800.641.1454 • Fax 1.800.641.
C O M P R O D C O M M U N I C A T I ON S T E C H N I C A L M A N U A L Class B Amplifier Box Description 1) This Amplifier is designed around the philosophy of Anytime, Anywhere, and Anyplace and uses only Class “A” Amplifiers, designed for a more constant and reliable Amplifier unit. Designed to be used in buildings, tunnel, government facilities, airports, providing the communication throughout. Typically, the Amp box will be connected to either radiant cable or a distributed antenna system.
V H F A M P L I F I E R T E C H N I C A L M A N U A L Specifications Our vhf amplifier have been designed with government agencies in mind. These are our highest level of performance and quality for continuous duty solutions while providing maximizing coverage. Available in rack mount, nema stainless steel, or painted steel nema enclosures.
V H F A M P L I F I E R T E C H N I C A L M A N U A L Output Level Control Detail - The OLC will control the output level of the amplifier box, this is done by using a sampled portion of the RF signal and converting it to DC voltage. This voltage is compared to the preset level of the OLC circuit. The preset level is Factory set with a 2 carrier input while monitoring IM products, not exceeding -13 dBm specification. The OLC voltage is then set to control the output signal levels.
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V H F A M P L I F I E R T E C H N I C A L M A N U A L Unpacking 1) The VHF BDA should be unpacked soon after delivery and carefully inspected for possible shipping damage. It is the customer’s responsibility to file claims with the freight carrier if damage is suspected and is usually limited to a certain time period after delivery. 2) Carefully compare the packing slip(s) against the package contents to verify the receipt of all expected items.
V H F A M P L I F I E R T E C H N I C A L M A N U A L with suitable connectors. 5) Connect to AC power source. Press and hold (5 seconds) the button on the UPS unit inside the Amplifier box to tune the unit on. The green light will be lit; if AC voltage is not present the amber light and a beeping alarm will be on, showing the unit is in temporary battery back up. 6) After the unit is on: reference the OLC with a multi-meter to identify if the OLC is activated.
V H F A M P L I F I E R T E C H N I C A L M A N U A L Warnings and Notices WARNING: Changes or modifications not expressly approved by Comprod Communications could void the user’s authority to operate the equipment WARNING: To satisfy FCC RF exposure requirements for mobile transmitting devices, a separation distance of 66 cm or more should be maintained between the antenna of this device and persons during device operation.
