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Summary of Contents for DRAKE 300VMFPLUS
- Page 1 300VMF Commercial Video Modulator (For use in NTSC systems) Instruction Manual is a trademark of the R.L. Drake Company © Copyright 2005 R.L. Drake Company P/N: 3853616D-10-2005...
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Page 2: Caution Statements
Caution Statements IMPORTANT SAFEGUARDS This symbol is intended to alert the user to the presence of non-insulated "dangerous voltage" within the product's enclosure, that may be of sufficient magnitude to constitute a risk of electric shock to persons. This symbol is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. -
Page 3: Table Of Contents
Table of Contents/Description/Specifications TABLE OF CONTENTS Caution Statements Rear Panel Connections and Internal Jumper Important Safety Instructions Installation Table of Contents / General Description Frequency Allocation Charts Specifications Service / If You Need To Call For Help Front Panel Controls, Indicators, and Warranty Connections DESCRIPTION... - Page 4 Front Panel Description Figure 1 F1 - POWER Indicator F5 - A/V RATIO Control Lights when the unit is connected to a source of AC This screwdriver adjustment varies the level of the aural power. carrier over a range from 12 to 20 dB below the visual carrier.
- Page 5 Rear Panel Description and Internal Jumper 120V AC VIDEO AUDIO R.F. 60Hz 610W INPUT INPUT OUTPUT R. L. DRAKE COMPANY FRANKLIN, OH MADE IN TAIWAN 600W MAX Figure 2 R1 - VIDEO INPUT Connector R4 - AC OUTLET Receptacle This is the baseband video input to the IF circuits. This This is a power receptacle for other equipment and is input accepts baseband through 4.2 MHz video at levels rated at 600 W maximum;...
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Page 6: Installation
Installation CONNECTIONS AND CONTROLS The 'RF Output Level' and 'A/V Ratio' controls are used All connections to and from the 300VMF+ are made through respectively to make these adjustments. If an output level of the rear panel. Figure 4 shows a typical two channel less than +43 dBmV is required, add an attenuator of the installation using a typical satellite receiver as a signal appropriate value to the modulator output. -
Page 7: Frequency Allocation Charts
Frequency Allocation Charts Table 1 CHANNEL ASSIGNMENTS Visual Visual Carrier Offset Carrier Offset Channel Channel 343.25 55.25 NONE ±12.5 349.25 61.25 NONE ±12.5 355.25 67.25 NONE ±12.5 361.25 77.25 NONE ±12.5 367.25 83.25 NONE ±12.5 373.25 175.25 NONE ±12.5 379.25 181.25 NONE ±12.5... -
Page 8: Service / If You Need To Call For Help
Service / If You Need To Call For Help SERVICE INFORMATION Should you want to return your unit for service, package You may contact the R.L. DRAKE Service Department for the unit carefully using the original carton or other additional information or assistance by calling suitable container. -
Page 9: Warranty
Warranty Warranty One Year Limited Warranty R. L. DRAKE COMPANY warrants to the original purchaser this product shall be free from defects in material or workmanship for one (1) year from the date of original purchase. During the warranty period the R. L. DRAKE COMPANY or an authorized Drake service facility will provide, free of charge, both parts and labor necessary to correct defects in material and workmanship. - Page 10 R.L. Drake Company 230 Industrial Drive Franklin, Ohio 45005 U.S.A. Customer Service and Parts Telephone: +1 (937) 746-6990 Telefax: +1 (937) 806-1576 World Wide Web Site: http://www.rldrake.com...
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