Crescend Technologies LLC UHFP10XXUL1 Manual De Usuario

Copyright Crescend Technologies 

4 

Rev O 

2.1. INTRODUCTION 
 
This section contains installation recommendations, unpacking, inspection, and installation 
instructions for the amplifier. Carefully read all the material in this section prior to equipment 
unpacking or installation. Also read and review the operating procedures in Section 3 prior to 
installing the equipment. It is important that the licensee perform these tasks correctly and in good 
faith. If applicable, carefully read Parts 73 and 74 of the Federal Communications Commission 
(FCC) rules to determine how they apply to your installation.  
 
2.2. 

 
Crescend Technologies recommends that proper AC line conditioning and surge suppression be 
provided on the primary AC input to the +13.8 VDC power source. All electrical service should be 
installed in accordance with the National Electrical Code, any applicable state or local codes, and 
good engineering practice. Special consideration should be given to lightning protection of all 
systems in view of the vulnerability of most transmitter sites to lightning. Lightning arrestors are 
recommended in the service entrance. Straight, short ground runs are recommended. The 
electrical service must be well grounded.  Each amplifier should have its own circuit breaker. 
 
2.3. 

 
This equipment has been operated, tested and calibrated at the factory. Only in the event of 
severe mechanical shocks or other mistreatment should any substantial readjustment be required. 
Carefully open the container(s) and remove the amplifier module(s). Retain all packing material 
that can be reassembled in the event that the unit must be returned to the factory. 
 

Exercise care in handling equipment during inspection to 
prevent damage caused by rough or careless handling. 

 
Visually inspect the amplifier module for damage that may have occurred during shipment. Check 
for evidence of water damage, bent or warped chassis, loose screws or nuts, or extraneous 
packing material in the connector or fans. Inspect the rear panel connector for bent connector pins. 
If the equipment is damaged, a claim should be filed with the carrier once the extent of any 
damage is assessed. We cannot stress too strongly the importance of IMMEDIATE careful 
inspection of the equipment and the subsequent IMMEDIATE filing of the necessary claims 
against the carrier if necessary. If possible, inspect the equipment in the presence of the delivery 
person. If the equipment is damaged, the carrier is your first area of recourse. If the equipment is 
damaged and must be returned to the factory, write or phone for a return authorization. Crescend 
may not accept returns without a return authorization. Claims for loss or damage may not be 
withheld from any payment to Crescend, nor may any payment due be withheld pending the 
outcome thereof. WE CANNOT GUARANTEE THE FREIGHT CARRIER’S PERFORMANCE. 
 
2.4. 

 
This amplifier is designed for installation in a rack that permits access

 

to the rear of the rack for 

connection of DC power, RF, and monitor/control cables.  The amplifier must have a minimum of 3 
inches of open space to the rear to allow adequate ventilation. 
 
To install the amplifier proceed as follows: 

1.  Install amplifier in equipment rack and secure in place. 
2.  Connect a 50 ohm antenna cable and load to the RF OUT connector on rear of amplifier. 
3.  Connect the transceiver/exciter output to RF IN connector on rear of amplifier. 
4.  If monitoring of PA is desired, connect alarm cable to “ALARM” pin on rear of amplifier 

module. See section 2.5 for more details. 

5.  If limited output power control of PA is desired, connect control cable or appropriate 

resistor to “SH/D” pin on rear of amplifier module. See section 2.5 for more details.