Blonder Tongue CATV Channelized Audio/Video Modulator with SAW Filtering (Channel 41)

Blonder Tongue CATV Channelized Audio/Video Modulator with SAW Filtering (Channel 41)

Blonder Tongue CATV Channelized Audio/Video Modulator with SAW Filtering (Channel 41)


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Blonder Tongue BAVM-860SAW-860-41 Overview

  • 1Description

The CATV Channelized Audio/Video Modulator, Channel 41, from Blonder Tongue is an all-solid-state audio/video modulator that provides a modulated visual and aural RF carrier output on one specific CATV channel. The unit modulates the audio and video inputs and provides the requested RF CATV channel output for use in a CATV, MATV or SMATV system. The modulator accepts standard (sync negative) polarity video at a 0.7-2.5V peak to peak level from sources such as a TV camera, video tape recorder, TV demodulator or satellite receiver.

The modulator features a +55dBmV RF output level, and an IF SAW filtering for adjacent channel operation. All aeronautical channels are offset positive with a tolerance of ±5kHz as required by FCC 21006. All level controls are located on the front panel. The RF level control provides up to +55dBmV output. The video modulator control sets the depth of modulation for 87.5% over an input video level range from 0.7VP/p to 2.5VP/p. An audio modulation control permits adjustment for ±25kHz peak deviation of the aural carrier.

Meets FCC docket 21006 aeronautical frequency offset requirements
Fully compatible with BTSC encoded stereo audio
Front panel accessible level controls for easy set-up and adjustments
AC outlet
In the Box
Blonder Tongue CATV Channelized Audio/Video Modulator with SAW Filtering (Channel 41)
  • Screws for Standard 19" EIA Rack Unit Installation
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    Blonder Tongue BAVM-860SAW-860-41 Specs

    RF Specification
    Frequency Range CATV channel 41
    Output Level 55 dBmV, minimum
    Output Level Range 15 dB
    Audio/Video Carrier Ratio Control -7 dB to -20 dB
    Frequency Tolerance ±10 kHz standard channels, ±5 kHz FCC 21006 offsets
    Audio Carrier Frequency Setting ±1 kHz maximum, 4.5 MHz above video carrier
    RF to Video Response 1 dB P/V from Fv -0.5 MHz to Fv +4.2 MHz
    Broadband Noise -90 dBc
    Spurious Output -60 dBc in 50 to 860 MHz Range @ +55 dBmV output
    Output Match (Return Loss) 12 dBc
    Vestigial Sideband Response @ channel edge -20 dB, @ adjacent channel -40 dB
    Input 0.7 to 2.5 V peak to peak for 87.5% modulation
    Input Return Loss 18 dB
    Carrier-to-Noise Ratio 62 dB in 4 MHz bandwidth
    Hum Ratio 60 dB peak to peak video to 60 Hz RMS
    Differential Gain 5% at 87.5% modulation
    Differential Phase 5° at 87.5% modulation
    Group Delay 170 ±50 nS
    Input Impedance 10 kΩ, unbalanced
    Input 140 mV RMS for 25 kHz peak deviation
    Frequency Response ±1.0 dB (50 Hz - 15 kHz referent to standard 75 msec pre-emphasis)
    Intercarrier Stability 4.5 MHz at ±5.0 kHz
    Power Requirements 105 - 130 VAC, 60 Hz, 10.5 W
    Temperature Range 0 to +50°C
    Audio In F-type female
    Video In F-type female
    RF Output F-type female
    RF Output Test F-type female -30 dB
    AC Outlet Female AC outlet 600 VA maximum
    Line Cord 6' power cable: 3 wire grounded, 3 wire convenience outlet
    Dimensions (W x H x D) 19 x 1.75 x 3" (48.26 x 4.44 x 7.62 cm)
    Weight 4 lb (1.8 kg)
    Packaging Info
    Package Weight 4.85 lb
    Box Dimensions (LxWxH) 21.4 x 5.4 x 3.3"

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