700 MHz Band Power Amplifier PA700-T740_746 INSTALLATION AND OPERATION GUIDE FOR SYSTEM OPERATORS
Proprietary to VCom Inc. All rights reserved. No part of this publication may by reproduced in any form or by any means or used to make any derivative work (such as translation, transformation or adaptation) without written permission from VCom Inc. VCom Inc. reserves the right to revise this publication and to make changes in content from time to time without obligation on the part of VCom Inc. to provide notification of such revision or change. VCom Inc.
Thank-you for purchasing this product and welcome to VCom! You have chosen an innovative solution from a leading technology design center in the ongoing TV & data delivery revolution. No doubt you’ve been thinking that the future of your television delivery system includes new technologies such as Digital TV, Internet Over Cable, Wireless Cable.
☛ Important Installation Instructions SAFETY PRECAUTIONS 1. Before installing and operating this equipment, read all Safety, Installation and Operating sections. Retain this manual for future reference. 2. Follow all instructions — Failure to do so may result in damage to the unit or severe personal injury. 3. Servicing should not be attempted by the user. There are no user serviceable parts inside. Refer all servicing to factory qualified personnel. 4. Cleaning — Do not use liquid or aerosol cleaners.
INDEX 1.0 GENERAL INFORMATION ......................................................................................................... 6 1.1 Functional Overview................................................................................................................................6 1.2 Features.....................................................................................................................................................6 1.2.1 Amplifier Features:.................................
The PA700-T740_746 is a solid state, fixed gain power amplifier for operation in the US 700 MHz frequency band. Advanced LDMOS design permits the PA700 to operate with high level digital signals such as 64QAM, DVB-T or 8-VSB DTV. The PA700 can be operated on a stand-alone basis or controlled via SNMP or front panel display when serially connected to a UCD4940.
," RF Output Frequency Linear Output Power Gain Gain Flatness Spurious Inband Out of band Input/Output Connectors Input Return Loss Output Return Loss RF Monitor RF Monitor Port 740 to 746 MHz +49 dBm (80W) 56 dB ± 2 dB, fixed ±0.3 dB over 6 MHz -55 dBc -55 dBc N female, 50 ohms 16 dB 18 dB SMA female, 50 ohms -42.
) DIAGRAM 1.4A: PA700 FRONT PANEL VCom Inc. PA700 Manual; ml_pa700_03 (January 2005) Approved: C.H.
DIAGRAM 1.4B: PA700 REAR PANEL VCom Inc. PA700 Manual; ml_pa700_03 (January 2005) Approved: C.H.
DIAGRAM 1.4C: PA700 SIDE AND TOP VIEW VCom Inc. PA700 Manual; ml_pa700_03 (January 2005) Approved: C.H.
" & . / % & Carefully remove the equipment from its packing material and set it on a solid surface, such as a table or desk. If it appears damaged in any way, notify the carrier, and keep all packing materials for inspection by the carrier’s agent. / % & Note: This unit should be installed by qualified service personnel only. Diagram 2.2 details the input and output connections for the PA700. 1.
DIAGRAM 2.2: PA700 SYSTEM CONNECTIONS VCom Inc. PA700 Manual; ml_pa700_03 (January 2005) Approved: C.H.
, ' ' 0 1 " In order for the PA700 to be monitored by the MSM software package, the PA700 must be connected to the MSM server computer as illustrated in diagram 3.1. The required cables are included with the AC3000 kit. DIAGRAM 3.1: CONNECTION WITH MSM VCom Inc. PA700 Manual; ml_pa700_03 (January 2005) Approved: C.H.
) &2 "1 “My amp is cutting-in/cutting-out repeatedly” “My amp is unstable” The amp may be in shutdown mode due to an input level that is too high, or due to a high amount of reverse-power being detected. Reverse-power is really reflected power – often caused by a fault between the PA700 and the antenna, or by operation at a frequency outside of the DPX700 passband.
No RS232 communication • Press reset (this may result in a service interruption) • Check the connector on front panel • If failure persists please contact technical support No RS485 communication • Press reset (this may result in a service interruption) • Check the connector on rear panel • Disconnect RS232 com and press reset • If failure persists please contact technical support VCom Inc. PA700 Manual; ml_pa700_03 (January 2005) Approved: C.H.
3 3 0 0 4" (" 5 ' - '4 #" VCom warrants its products to be free from defects in workmanship or materials for a period of two years. The warranty begins on the date of the original shipment from VCom to its customer. No claim may be allowed for expenses incurred in installation or use. No other expressed or implied warranties shall apply to the goods sold.
3, '% / 60 # 7 Items returned beyond the warranty period or items that do not qualify for warranty service are subject to additional out-of-warranty repair charges. Descriptions of these charges and warranty exemptions are below: 1) Repair turnaround time is typically 5-14 business days after receipt of the item at VCom. A Flat Rate Repair Charge will apply to all out-of-warranty items. Flat Rate Repair Charges are subject to change without notice.
150 Cardinal Place Saskatoon, Saskatchewan S7L 6H7 Canada Tel: (306) 955-7075 Fax: (306) 955-9919 www.vcom.com sales@vcom.
