BAVM-860-SAW-4 – Overview
The Blonder Tongue BAVM-860SAW is an economical commercial quality TV modulator. It provides a +55 dBmV RFoutput on any specified CATV channel from 2 to 135 (54 to 860 MHz). HRC and IRC frequency plans are also available. The BAVM-860SAW is ideal for placing A/V program sources such as satellite receivers, VCR’s, DVD’s, cameras or TV demodulators onto standard 6 MHz NTSC TV channels for broadband distribution. The BAVM-860SAW features IF SAW filtering with built-in FCC group delay pre-distortion assuring excellent adjacent channel performance and color operation. The modulator complies with FCC 21006 with +/- 5 KHz visual carrier stability and required frequency offsets on all aeronautical channels. For BTSC stereo applications, a field-defeatable audio preemphasis network is provided making theBAVM-860SAW compatible with any outboard stereo generator that provides a composite baseband output. A -30 dBoutput test point and all user controls are provided on the front panel.
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Features:
- 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
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Specifications:
- RF Specification
- Frequency Range: CATV channel 4
- 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
Video
- 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
Audio
- 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
General
- Power Requirements: 105 – 130 VAC, 60 Hz, 10.5 W
- Temperature Range: 0 to +50°C
Connectors
- 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
Mechanical
- Line Cord: 6′ power cable: 3 wire grounded, 3 wire convenience outlet
- Dimensions (WxHxD): 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: 4.55 lb
- Box Dimensions (LxWxH): 21.5 x 5.4 x 3.3″












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