Modulador Fijo BLONDER TONGUE BAVM
The Blonder Tongue BAVM-860SAW is an economical commercial quality TV modulator. It provides a +55 dBmV RF output 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 the BAVM-860SAW compatible with any outboard stereo generator that provides a composite baseband output. A -30 dB output test point and all user controls are provided on the front panel.
- 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.
- Low cost high performance channelized Audio / Video modulator
- AC outlet.
RF Frequency Range: CATV channels 2 to 135 Output Level: 55 dBmV Output Level Range: 15 dB, continuously adjustable by front panel Output Level Control 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, Max 4.5 MHz above video carrier RF to Video Response from Fv -0.5 MHz to Fv +4.2 MHz: 1 dB P/V Broadband Noise: -90 dBC Spurious Output in 50 – 860 MHz Range @ +55 dBmV Output: -60 dBc Output Match (Return Loss): .12 dBc Vestigial Sideband Reponse: @Channel Edge -20 dB@Adjacent Channel -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 4.5 MHz Intercarrier Stability: ±5.0 kHz General Power Requirements: 105-130 VAC, 60 Hz, 10.5 W Temperature Range: 0 to 50 degrees C Mechanical Dimensions: 19 x 13/4 x 3, WxHxD, inches Mounting: 19” single rack space Line Cord: 3 wire grounded, 3 wire convenience outlet Finish: Plated Shipping Weight: 4 lbs. (approx) Connectors Audio In: “F” Type Video In: “F” Type RF Out: “F” Type RF Output Test – 30 dB: “F” Type