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BAVM-860SAW Instruction Manual

Safety Instructions

➧ 

Read all safety and operating instructions before you operate the modulator.

➧ 

Retain all safety and operating instructions for future reference.

➧ 

Heed all warnings on the modulator and in the safety and operating instructions.

➧ 

Follow all installation, operating, and use instructions.

➧   

Unplug the modulator from the AC power outlet before cleaning.  Use only a damp cloth for cleaning the exterior of the 
modulator.

➧   

Do not use accessories or attachments not recommended by Blonder Tongue, as they may cause hazards, and will void 
the warranty.

➧ 

Do not operate the modulator in high-humidity areas, or expose it to water or moisture.

➧   

Do not place the modulator on an unstable cart, stand, tripod, bracket, or table.  The modulator may fall, causing serious 
personal injury and damage to the modulator.  Install the modulator only in a mounting rack designed for 19” rack-
mounted equipment.

➧   

Do not block or cover slots and openings in the modulator.  These are provided for ventilation and protection from 
overheating.  Never place the modulator near or over a radiator or heat register.  Do not place the modulator in an 
enclosure such as a cabinet without proper ventilation.  Do not mount equipment in the rack space directly above or 
below the modulator.

➧   

Operate the modulator using only the type of power source indicated on the marking label.  Unplug the modulator power 
cord by gripping the plug, not the cord.

➧   

The modulator is equipped with a three-wire ground-type plug.  This plug will fit only into a ground-type power outlet.  If 
you are unable to insert the plug into the outlet, contact an electrician to replace the outlet.  Do not defeat the safety 
purpose of the ground-type plug.

➧   

Route power supply cords so that they are not likely to be walked on or pinched by items placed upon or against them.  
Pay particular attention to cords at plugs, convenience receptacles, and the point where they exit from the unit.

➧   

Be sure that the outdoor components of the antenna system are grounded in accordance with local, federal, and 

National Electrical Code (NEC) requirements.  Pay special attention to NEC Sections 810 and 820.   

See the example shown in the following diagram:

You should always follow these instructions to help ensure against injury to yourself and 

damage to your equipment.

Satellite Dish

Coaxial Cable

from Satellite Dish

Electric Service

Equipment

Power Service

Grounding

Electrode System

(NEC Art. 250, Part H)

Ground Clamps

Grounding Conductors

(NEC Section 810-21)

Antenna Discharge Unit

(NEC Section 810-20)

Ground Clamp

Summary of Contents for BAVM-860SAW

Page 1: ...00B BAVM 860SAW Audio Video Modulator Stock No 5990 One Jake Brown Road P O Box 1000 Old Bridge NJ 08857 1000 USA 800 523 6049 732 679 4000 FAX 732 679 4353 www blondertongue com The Standard of Quality in TV Signal Distribution ...

Page 2: ...g flash with arrowhead symbol within an equilateral triangle 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 to persons The exclamation point within an equilateral triangle is intended to alert you to the presence of important operating and maintenance servicing ins...

Page 3: ... without proper ventilation Do not mount equipment in the rack space directly above or below the modulator Operate the modulator using only the type of power source indicated on the marking label Unplug the modulator power cord by gripping the plug not the cord The modulator is equipped with a three wire ground type plug This plug will fit only into a ground type power outlet If you are unable to ...

Page 4: ...objects may touch dangerous voltage points or short out parts This could cause fire or electrical shock Do not attempt to service the modulator yourself as opening or removing covers may expose you to dangerous voltage and will void the warranty Refer all servicing to authorized service personnel Unplug the modulator from the wall outlet and refer servicing to authorized service personnel whenever...

Page 5: ...e front panel A block diagram of the BAVM 860SAW 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 video modulator control sets the depth of modulation fo 87 5 over an input video level range from 0 7VP P to 2 5VP P An audio modulation control permits adjustment for 25 kHz peak dev...

Page 6: ...40 dB Video Input for 87 5 Modulation 0 7V 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 dB 50 ...

Page 7: ...to be made of the equipment Precautions Adherence to the initial installation precautions outlined in the Table below will help prevent problems arising during the PRECAUTIONS REQUIREMENTS Avoid Heat Buildup Allow 1 EIA rack space 13 4 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 servic...

Page 8: ...accessible from the front panel 1 VIDEO MODULATION Adjusts depth of video modulation 2 AURAL LEVEL Controls amplitude of aural RF carrier to change aural visual ratio 3 AUDIO MODULATION Adjusts for 25 kHz peak deviation 4 OUTPUT LEVEL Simultaneously adjusts amplitude of aural and visual carriers 5 POWER ON INDICATOR LIGHT 6 TEST POINT 30dB Output test point Stereo Operation When using the BAVM 860...

Page 9: ...ch can cause picture distortion 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 A V BAVM 860SAW Modulator Splitter Combiner To Distribution System DC T P Attenuator and Amp if Required 2 4 6 7 7 17 9 9 8 8 11 Antennas BPF...

Page 10: ...Closeout Products All sales of Refurbished or Closeout Products are final To obtain service under this warranty the defective product together with a copy of the sales receipt or other satisfactory proof of purchase and a brief description of the defect must be shipped freight prepaid to Blonder Tongue Laboratories Inc One Jake Brown Road Old Bridge New Jersey 08857 This warranty does not cover dam...

Page 11: ... 11 BAVM 860SAW Instruction Manual This page is intentionally left blank ...

Page 12: ...One Jake Brown Road P O Box 1000 Old Bridge NJ 08857 1000 USA 800 523 6049 732 679 4000 FAX 732 679 4353 www blondertongue com The Standard of Quality in TV Signal Distribution ...

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