Summary of Contents for Applied Instruments 1685
- Page 1 Model 1685 Multi-Carrier Signal Generator Operation Manual Revision 2.4 Date 27 October 2016...
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Page 2: Table Of Contents
Model 1685 Operation Manual Applied Instruments Inc Table of Contents 1 INTRODUCTION......................3 1.1 Symbols Used ..................... 3 1.2 Safety Instructions ....................3 2 OPERATING INSTRUCTIONS ................4 2.1 Front Panel ......................4 2.2 Rear Panel ......................4 2.3 AC Operation ..................... 5 2.4 Operating Conditions .................. -
Page 3: Introduction
Applied Instruments Inc 1 INTRODUCTION The Model 1685 generates RF continuous wave signals for use as reference signals when aligning a CATV forward band. This rack-mount unit may be configured with one to eight RF carriers. Each carrier may be activated individually or simultaneously. The optional built-in attenuator provides up to 70 dB of carrier amplitude range. -
Page 4: Operating Instructions
2 OPERATING INSTRUCTIONS This section provides the instructions and information necessary to connect and operate the Model 1685 Multi-Carrier Signal Generator. Included are the identification and function of controls, connectors, and indicators. Before turning on the instrument become familiar with the functional components of the unit. -
Page 5: Ac Operation
Do not set up or use unit where liquids or other conductive materials are used. Ensure that no liquids are spilled into the unit. If water or other conductive material enters the enclosure, immediately turn off the unit and unplug it. Contact a qualified technician or return the unit to Applied Instruments for repair. -
Page 6: System Carrier-To-Noise Measurement
Model 1685 Operation Manual Applied Instruments Inc 3 SYSTEM CARRIER-TO-NOISE MEASUREMENT Carrier-to-noise ratio is a measurement of a carrier amplitude relative to the noise floor of the transmission system. This noise floor is created by the summation of natural thermal noise (-59.75 dBmV @25ºC. -
Page 7: Servicing Instructions
Model 1685 Operation Manual Applied Instruments Inc 4 Servicing Instructions All service should be performed by a qualified technician only. WARNING: Risk of shock is present when the cover is removed and AC power is present. Be sure to disconnect from AC before opening unit. - Page 8 Applied Instruments any liability in connection with the sale of our products other than that set forth herein.
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