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Blonder Tongue Agile Audio/Video Modulator (AM-60-806)

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Blonder Tongue Agile Audio/Video Modulator (AM-60-806)

Brand: Blonder Tongue           P\N: AM-60-806          

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Description


Solid Signal is an Authorized Reseller of Blonder Tongue products.
Solid Signal is an Authorized Reseller of Blonder Tongue products.
The AM Series are professional quality, agile audio/video modulators. They are equipped with the Emergency Alert System (EAS) feature, which can also be used as an alternate IF input. These units provide audio and video modulated RF carrier on any channel in 54 to 550/750 MHz frequency range.

Features


  • Custom SAW Filter Providing True VSB Response With Built-In FCC CATV Group Delay Pre-Distortion

  • Superior Broadband Noise Performance (-76 dB)

  • Meets FCC Docket 21006 Aeronautical Frequency Offset Requirements

  • EAS/ALT IF Ready Via Manual or Automatic Mode

  • Supports All Broadcast and CATV Channels, Including All HRC and IRC Assignments

  • External IF Loop Permits Video All-Call or Scrambling Systems

  • Front Panel Access to All LevelControls

  • Fully Compatible With BTSC Encoded Stereo Audio

  • Three Year Warranty

  • Video All-Call Ready

  • Rack Mount - 1 EIA (1.75) Spacing, Rugged Aluminum Chassis

Specs


The AM Series are professional quality, agile audio/video modulators. They are equipped with the Emergency Alert System (EAS) feature, which can also be used as an alternate IF input. These units provide audio and video modulated RF carrier on any channel in 54 to 550/750 MHz frequency range. The AM Series is ideal placing audio and video onto any unused channel (broadcast CATV, including HRC and IRC assignments). Any standard audio/video source can be used, such as satellite receivers, television cameras, video tape recorders, or television demodulators. Agile channel selection permits on-the-fly channel changes and reduces the need for large inventories of channelized products. Channel selection is accomplished with the use of simple to use front panel accessible dip switches.

 These modulators have a wide range of standard and optional features that make them very suitable for advanced CATV systems. Four models are available with different output levels, frequency ranges and a variety of options. All models feature rock solid, synthesized frequency control, with a tuning increment of 250 kHz. A custom SAW filter is employed to provide true vestigial sideband selectivity with built-in FCC group delay pre-distortion. These modulators have an external IF loop, which allows interfacing with video all-call and signal scrambling systems. The EAS Alternate IF feature allows the choice between manual and automatic selection of EAS/ALT IF input signal. This is done through a 3 position terminal strip on the rear of the unit. The AM Series meets FCC Docket 21006 aeronautical frequency offset requirements (±5 kHz video carrier accuracy). These modulators provide extremely clean output signals with distortion products (-60 dB or better). An exceptionally low broadband noise floor (-76 dBc or better) makes the AM Series ideal for large, multiple channel headends without the need for additional filtering.


RF
·          Frequency Range: 54-860 MHz
·          Channels: CATV, VHF, UHF (STD,HRC,IRC)
·          FCC Offset (Pre-programmed):
·          0, +12.5, or 25 kHz
·          Output Level - Min: +60 dBmV
·          Output Level Adjust: 10 dB
·          Aural/Visual Carrier Ratio: -15 ±5 dB
·          Visual Carrier Frequency Tolerance
·          Standard Channels: ±10 kHz
·          FCC Aeronautical Channels: ±5 max kHz
·          4.5 MHz Aural Inter
·          Carrier Frequency: ±150 Hz
·          Channel Selectivity:
·          Adjacent Aural and Below: -40 dB
·          Adjacent Picture and Above: -50 dB
·          Spurious Outputs: -60 dBc
·          C/N Ratio In Channel: 67 dB
·          Broadband Noise: -80 dBc
·          Output Impedance: 75 ohm
·          Output Return Loss: 14 dB

IF
·          Aural Frequency Standard: 41.25 MHz
·          Visual Frequency Standard: 45.75 MHz
·          Composite IF Loop Output Aural Carrier Level:
·          +20 dBmV
·          Visual Carrier Level: +35 dBmV
·          Output/Input Impedance: 75 ohm
·          Output Return Loss: 16 dB
·          Input Return Loss: 20 dB
·          EAS/ALT IF Input Level: 36 dBmV @ 45.75 MHz
EAS/ALT IF Switch Isolation: >60 dB

Video
·          Input Level: 1.0 V p-p
·          Frequency Response
·          fv-0.5 MHz to fv+4.2 MHz: ±1.0 dB
·          P-P Video to RMS Hum Ratio: 65 dB
·          Video Signal-to-Noise Ratio, Weighted: 64 dB
·          Differential Gain: 2.0 %
·          Differential Phase: 1.0 °
·          Over Modulation Indicator: 87.5, ±2.5 %
·          Input Impedance: 75 ohm
·          Input Return Loss: 18 dB

Audio
·          Input Level: 140 mV RMS
·          Ext. 4.5 MHz Input Level: +35 to +45 dBmV
·          Frequency Range: 20 Hz to 20 kHz
·          Frequency Response: ±1.0 dB
·          Pre-Emphasis-Mono: 75 μs
·          Audio Signal-to-Noise: 60 dB
·          Total Harmonic Distortion: 0.6 %
·          Over Modulation Indicator: 25, ±2 kHz
·          Input Impedance: 600, balanced ohm

General
·          Power Requirements
·          Voltage: 117, ±10% VAC
·          Frequency: 60 Hz
·          Power: 25 W
·          Fuse: 0.40 A
Temperature Range: 0 to +50 °C

Mechanical
·          Dimensions (WxHxD):
·          19.0 x 1.75 x 14.5 in
·          483 x 44 x 368 mm
·          Weight: 7 lbs. (3.18 kg)

Connectors (Rear Panel)
·          Video Input Standard: "F" Type, Female
·          Option 02: BNC Video Input: BNC Type, Female
·          Option 10: Composite A/V: "F" Type,Female
·          Audio Input Standard 600 Ω Audio Input:
·          Barrier Strip
·          Composite Video/Audio Input Option 10:
·          "F" Type, Female
·          Composite A/V: "F" Type, Female
·          IF Output: "F" Type, Female
·          IF Input: "F" Type, Female
·          RF Output: "F" Type, Female
·          EAS/ALT IF: "F" Type, Female

Controls (Front Panel)
·          Frequency Selection: Push-Button Switches
·          Video Level: Control
·          Aural Carrier Level: Control
·          Audio Level: Control
·          RF Output Level: Control

Indicators (Front Panel)
·          Power ON: LED, Green
·          Video Over Modulation: LED, Red
·          Audio Over Modulation: LED, Red
EAS/ALT IF: LED, Green


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