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Blonder Tongue CATV Channelized Audio/Video Modulator with SAW Filtering (Channel 39)

Blonder Tongue CATV Channelized Audio/Video Modulator with SAW Filtering (Channel 39)
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Expected availability: 3-7 business days

Blonder Tongue BAVM-860 Overview

The CATV Channelized Audio/Video Modulator, Channel 39, 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

Blonder Tongue BAVM-860 Specs

RF Specification
Frequency RangeCATV channel 39
Output Level55 dBmV, minimum
Output Level Range15 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 Response1 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
Input0.7 to 2.5 V peak to peak for 87.5% modulation
Input Return Loss18 dB
Carrier-to-Noise Ratio62 dB in 4 MHz bandwidth
Hum Ratio60 dB peak to peak video to 60 Hz RMS
Differential Gain5% at 87.5% modulation
Differential Phase5° at 87.5% modulation
Group Delay170 ±50 nS
Input Impedance10 kΩ, unbalanced
Input140 mV RMS for 25 kHz peak deviation
Frequency Response±1.0 dB (50 Hz - 15 kHz referent to standard 75 msec pre-emphasis)
Intercarrier Stability4.5 MHz at ±5.0 kHz
Power Requirements105 - 130 VAC, 60 Hz, 10.5 W
Temperature Range0 to +50°C
Audio InF-type female
Video InF-type female
RF OutputF-type female
RF Output TestF-type female -30 dB
AC OutletFemale AC outlet 600 VA maximum
Line Cord6' power cable: 3 wire grounded, 3 wire convenience outlet
Dimensions19 x 1.75 x 3" (48.26 x 4.44 x 7.62 cm)
Weight4 lb (1.8 kg)
Packaging Info
Package Weight4.5 lb
Box Dimensions (LxWxH)21.2 x 5.5 x 3.3"

Blonder Tongue BAVM-860 Reviews

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