Modulatoare RF profesionale pentru statii cablu

Blonder Tongue BAVM-860SAW Audio/Video Modulator

Avem mai multe modulatoare (Pe diferite frecvente fixe) in benzile

audio OIRT si CCIR .Aceste modulatoare se pot folosi in statii CATV sau aplicatii individuale .

Caracteristici principale :

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 PAL 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.

Features & Benefits

• 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 Convenience Outlet

RF

• Frequency Range: CATV Channels 2 to 135
• Output Level: 55 dBmV, Min
• 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
  5.5 MHz Above Video Carrier
• RF to Video Response from Fv -0.5 MHz to Fv +5.2 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 Response:
  @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 5 MHz Bandwidth: 62 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 Ohm, Unbalanced
• Input for 25 KHz Peak Deviation: 140 mV RMS
• Audio Frequency Response:
  ±1.0 dB
  (50 Hz to 15 KHz ref to std 75 msec Pre-emphasis)
  5.5 MHz Intercarrier Stability: ±5.0 kHz

General

• Power Requirements: 250 VAC, 50 Hz, 10.5 W
• Temperature Range: 0 to +50°C

Mechanical

• Dimensions (W x H x D):
  19 x 1.75 x 3 in.
  482.6 x 44.45 x 76.2 mm
• Line Cord:
  3 Wire Grounded,
  3 Wire Convenience Outlet
• Weight: 4 lbs., 1.81 kg

Connectors

• Audio In: F Female
• Video In: F Female
• RF Out: F Female

RF Output Test - 30 dB: F Female

Avem mai multe (pe diferite frecv.fixe) ...intrebati care.

Ca si aplicatie individuala : Executia unei ministatii CATV la

o pensiune ,vila ,casa individuala .

De mentionat ca firma noastra poate executa aceste lucrari.