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BAVM-860 SAW Series  

Instruction Manual

Section 3 – Installation & Operation

3.1 Note to CATV System Installer

This reminder is provided to call the CATV System Installer's at ten tion to Article 820-40 of the NEC that provides guidelines 

for proper grounding and, in particular, specifies that the cable ground shall be connected to the grounding system of the 

building, as close to the point of cable entry as practical.

3.2 Unpacking and Handling

Each modulator is shipped with all equip ment assembled, wired, factory tested, and then packaged in an appropriate 

shipping container.
Ensure that all accessories are removed from the container and packing material before they are discarded.

3.3 Mechanical Inspection

Inspect the front and rear of the equipment for shipping damage. Make sure the equipment is clean, and no wires, cables, 

or connectors are broken, damaged or loose.

3.4 Damage in Shipment

Should any damage be discovered after unpacking the unit, immediately file a claim with the carrier. A full report of the 

damage shall be made and a copy forwarded to Blonder Tongue Laboratories Inc. The company will then advise what 

disposition is to be made of the equipment.

3.5 Precautions

Adherence to the initial installation precautions outlined in the Table below will help prevent problems arising during the 

installation and future maintenance of the unit.

Returning Product for Repair (or Credit)

A Return Material Authorization (RMA) Number is required on all products returned to Blonder Tongue

, regardless if 

the product is being returned for repair or credit.  Before returning product, please contact the Blonder Tongue Service 

Department at 1-800-523-6049, Ext. 4256 or visit our website: 

www.blondertongue.com 

for further information.

Table 1  -  Installation Precautions Table

 

PRECAUTIONS 

REQUIREMENTS

 

Avoid Heat Buildup 

 Allow (1) EIA rack space (1.75") between powered headend 

products in the equipment racks.

 

Ensure easy access to rack wiring. 

 Allow a minimum of 18 inches behind the equipment rack(s).

 

Facilitate servicing and maintenance. 

 Allow a minimum of 36” of clearance in front of the equipment 

rack(s).

 

Avoid direct heating or air conditioning. 

If unavoidable, use deflector plates.

 

AC power source outlets. 

 Locate equipment near sufficient outlets to provide power  

for test equipment and power tools.

 

Rack Support. 

 Make certain rack supports are sufficiently rigid to  

support racks.

 

Building leakage. 

 Beware of dripping water onto equipment from leaky roofs, 

waveguide roof entries, and cold water pipe condensations.

Summary of Contents for BAVM-860 SAW Series

Page 1: ...es Inc All rights reserved Specifications are subject to change without notice Trademarks are the property of their respective owner BAVM 860 SAW Series Audio Video Modulator Model Stock No Description BAVM 860 SAW 5990A Channelized Audio Video Modulator Status Date Document No Issue No Author Active May 21 2010 651224400A 1 KK Obsolete Jun 4 2009 651210100B 2 KK ...

Page 2: ...directly to Blonder Tongue Laboratories Inc One Jake Brown Road Old Bridge NJ 08857 Document Number 651224400A All product names trade names or corporate names mentioned in this document are acknowledged to be the proprietary property of the registered owners This product incorporates copyright protection technology that is protected by U S patents and other intellectual property rights Reverse en...

Page 3: ...PRODUCT APPLICATION DESCRIPTION 6 2 2 PRODUCT SPECIFICATION 8 SECTION 3 INSTALLATION OPERATION 9 3 1 NOTE TO CATV SYSTEM INSTALLER 9 3 2 UNPACKING AND HANDLING 9 3 3 MECHANICAL INSPECTION 9 3 4 DAMAGE IN SHIPMENT 9 3 5 PRECAUTIONS 9 SECTION 4 PREPARATION FOR USE TYPICAL APPLICATION 10 4 1 AUDIO MODULATION 10 4 2 VIDEO MODULATION 10 ...

Page 4: ...e LIGHTNING flash symbol is intended to alert you to the presence of uninsulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electrical shock YOU SHOULD ALWAYS FOLLOW THESE INSTRUCTIONS TO HELP ENSURE AGAINST INJURY TO YOURSELF AND DAMAGE TO YOUR EQUIPMENT Safety Instructions å Read all safety and operating instructions before you op...

Page 5: ...ly recommend using an outlet that contains surge suppression or ground fault protection For added protection during a lightning storm or when the unit is left unattended and unused for long periods of time unplug it from the wall outlet and disconnect the lines between the unit and the antenna This will prevent damage caused by lightning or power line surges å Do not locate the antenna near overhe...

Page 6: ...cent channel operation All aeronautical channels are offset positive with a tolerance of 5 kHz as required by FCC 21006 For ease of operation all level controls are located on the front panel A block diagram of the BAVM 860 SAW is shown below The audio video modulator accepts a baseband video and audio input and outputs an RF CATV channel The RF level control provides up to 55 dBmV output The vide...

Page 7: ...INDICATOR LIGHT 6 OUTPUT TEST 30dB 30 dB Output test point 7 LINE CORD 8 OUTLET 9 VIDEO INPUT 10 AUDIO INPUT 11 RF OUTPUT Stereo Option 4 6 3 2 1 5 7 8 9 10 11 When using the BAVM 860 SAW with a stereo encoder it may be necessary to disable the audio pre emphasis circuit Refer to your stereo encoder s instruction manual for required modulator settings Should the audio pre emphasis need to be disab...

Page 8: ...nel 40 dB Video Input for 87 5 Modulation 0 7 V to 2 5 V P P Video Input Return Loss 18 dB Video Carrier To Noise Ratio in 4 MHz Bandwidth 60 dB P P Video to 60 Hz RMS Hum Ratio 60 dB Differential Gain at 87 5 Modulation 5 Differential Phase at 87 5 Modulation 5 Group Delay 170 50 nS Audio Input Impedance 10K Ohms Unbalanced Input for 25 KHz Peak Deviation 140 mV RMS Audio Frequency Response 1 0 d...

Page 9: ... of the equipment 3 5 Precautions Adherence to the initial installation precautions outlined in the Table below will help prevent problems arising during the installation and future maintenance of the unit Returning Product for Repair or Credit A Return Material Authorization RMA Number is required on all products returned to Blonder Tongue regardless if the product is being returned for repair or...

Page 10: ...dulate which can cause picture distortion 4 2 Video Modulation With a nominal 1 volt P P video source connected adjust the Video Modulation control for 85 depth of modulation If a spectrum analyzer is not available a TV set can be used to check for proper picture contrast Typical Application AV BAVM 860SAW Modulator Splitter Combiner To Distribution System DC T P Attenuator and Amp if Required 24 ...

Page 11: ...THIS PAGE INTENTIONALLY LEFT BLANK ...

Page 12: ...N NO EVENT AND UNDER NO CIRCUMSTANCES BE LIABLE OR RESPONSIBLE FOR ANY CONSEQUENTIAL INDIRECT INCIDENTAL PUNITIVE DIRECT OR SPECIAL DAMAGES BASED UPON BREACH OF WARRANTY BREACH OF CONTRACT NEGLIGENCE STRICT TORT LIABILITY OR OTHERWISE OR ANY OTHER LEGAL THEORY ARISING DIRECTLY OR INDIRECTLY FROM THE SALE USE INSTALLATION OR FAILURE OF ANY PRODUCT ACQUIRED BY BUYER FROM BT All claims for shortages ...

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