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Tuesday, 28th September, 2010

Features & Benefits :

  • Meets FCC Docket 21006 Aeronautical Frequency Offset Requirements
  • Fully Compatible With BTSC Encoded Stereo Audio
  • Three Year Warranty
  • Front Panel Accessible Level Control for Easy Set-Up and Adjustments
  • Die-Cast Chassis Offers Superior Protection Against Ingress or Egress
  • Supports All Broadcast and CATV Channels, Inlcuding HRC and IRC Assignments from 54 to 860 MHz
The AMCM-860 is a professional quality agile audio/video modulator with an output frequency range of 54-860 MHz. It joins Blonder Tongue's family of modular headend components and works in conjunction with the MIRC-12V rack chassis and MIPS-12C power supply.

The unit provides a modulated aural & visual carrier on any channel in the 54 to 860 MHz range. Frequency plans including Standard CATV, IRC, HRC and Broadcast are accommodated via front panel selection. Channel tuning is easily accomplished with the use of front panel switches following the entry instructions. All channels with appropriate FCC offsets are pre-programmed and tuned electronically via microprocessor.

The unit accepts any standard audio/video source such as satellite receivers, television camera, video tape recorders or demodulators. The advanced design ensures access for all level and over-modulation controls via the front panel with LED indicators for each. Internal selectable jumper settings allow for compatibility of features such as defeatable audio preemphasis for BTSC compatibility.

Special features have been built into the unit firmware to ensure the best possible user experience. This includes the ability to alert an operator to any inadvertent or designed change to the unit switches by flashing a red error indicator. The indicator will continue to flash until the con

SPECIFICATIONS :
RF Units
Frequency Range 54-860 MHz
Channel: CATV, VHF, UHF
(STD, HRC, IRC)
FCC Offset (pre-programmed) 0, =12.5, or 25 kHz
Output Level -Min +45 dBmV
Output Level Adjust 15 dB
Aural/Visual Carrier Ratio: -10 to -17 dB
Visual Frequency Tolerance:
Standard Channels ±5 kHz
FCC Aeronautical Channels ±3 max kHz
4.5 MHz Aural Inter Carrier Frequency ±1 Hz
Channel Selectivity:
Adjacent Aural and Below -40 dB
Adjacent Picture and Above -50 dB
Spurious Outputs -60 dBc
C/N Ratio in Channel 65 dB
Broadband Noise -76 dBc
Output Impedance 75 ohm
Output Return Loss 12 dB
Video Units
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,
NTC-7 Weighted 62 dB
Differential Gain 2.0%
Differential Phase 1.0°
Over Modulation Indicator 87.5, ±2.5%
Input Impedance 75 ohm
Input Return Loss 24 min, dB
AUDIO Units
Input Level 140 mV RMS
Ext. 4.5 MHz Input Level 40 ±1 dBmV
Frequency Range 20 Hz to 20 kHz
Pre-Emphasis-Mono 75 μs
Frequency Response: ±1.0 dB
IF-Pre-Emphasis defeated ±0.5 dB
Audio Signal-to-Noise: 58 dB
Total Harmonic Distortion: 0.6%
Over Modulation Indicator: 25, ±2 kHz
Input Impedance: Greater than 10k Ω, unbalanced
General Units
Power Requirements:
Voltage: +12, +5 VDC
Power: 5 W
Temperature Range: 0 to +50°C
Current: 235, 375 mA
Mechanical Units
Dimensions (WxHxD): 1.15 x 3.5 x 7.5 in
29 x 89 x 101 mm
Weight: 0.8 lbs, .36 kg
Connectors (Rear Panel) Units
Video Input: "F" Type, Female
Audio Input: RCA Phono
RF Output: "F" Type Female
Controls (Front Panel) Units
Frequency Selection: Push-Button Switches
Video Level: Control
A/V Ratio: Control
Audio Level Control
RF Output Level Control
Channel Enter: Push Button
Indicators (Front Panel) Units
Power ON: 2 color LED, Red/Green
Video Over Modulation: LED, Red
Audio Over Modulation: LED, Red
MICM-45 Channelized Audio/Video Modulators

Features & Benefits :

  • 5-860 MHz Channelized Audio/Video Modulator
  • SAW Filtered to True Adjacent Channel Response
  • Die-Cast Chassis Offers Superior Protection Against Ingress or Egress
  • Front Panel Accessible Level Controls for Easy Set-Up and Adjustment
The MICM-45 is a professional quality, channelized, heterodyne audio/video modulator. The unit provides audio and video modulated RF carrier output on any single VHF or CATV channel, including: broadcast TV (2-13), CATV (14-135). The MICM is ideal for placing audio and video onto any unused VHF/CATV channel. Any standard audio/video source can be used, such as satellite receivers, television cameras, video tape recorders, or television demodulators. The modulator is housed in a rugged die-cast chassis to ensure mechanical integration and offers superior protection against ingress or egress.

The MICM-45 utilizes SAW filtering with FCC group delay pre-distortion to provide true vestigial sideband selectivity. This makes the MICM perfect for use in adjacent channel systems. The MICM-45 takes baseband audio and video and modulates these signals onto the desired output channel. The MICM-45 meets FCC Docket 21006 aeronautical frequency offset requirements (±5 kHz video carrier accuracy). Field defeatable audio pre-emphasis enables transmission of BTSC standard composite stereo signals.

SPECIFICATIONS :
RF Units
Frequency Range 54-860 MHz
Channel: VHF, CATV
Output Level-Min +45 dBmV
Output Level Adjust: 10 dB
Aural/Visual Carrier Ratio -9 to -20 dB
Visual Frequency Tolerance:
Standard Channels ±10 kHz
FCC Aeronautical Channels ±5 max kHz
Aural Carrier Frequency
Offset from Visual Carrier +4.5 MHz
Accuracy, Settable To: ±1.5 kHz
Spurious Outputs: -60 dBc
C/N Ratio in Channel 60 dB
Broadband Noise: -90 dBc
Output Impedance: 75 ohm
Output Return Loss: 12 dB
Video Units
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 60 dB
Video Signal-to-Noise Ratio, Weighted: 60 dB
Differential Gain ±4.0%
Differential Phase ±2.0°
Group Delay Response: see note (d) ns
Input Impedance 75 ohm
Input Return Loss 18 dB
Audio Units
Input Level 140 mV RMS
Frequency Response 20 Hz to kHz: ±1.0 dB
Pre-Emphasis-Mono: 75 μs
Total Harmonic Distortion (%): 1.0
Input Impedance-Unbalanced: 10 kΩ
Sub-Carrier Audio
Frequency: 4.5 MHz
Stability (typ): ±5 kHz
General Units
Power Requirements:
Voltage: +12, +5 VDC
Current (Max): 170/35 mA
Power (Max): 2.25 W
Temperature Range: 0 to +50°C
Mechanical Units
Dimensions (WxHxD): 1.15 x 3.5 x 7.5 in
29 x 89 x 191 mm
Weight: 0.65 lbs, 0.30 kg
Connectors (Rear Panel) Units
Video Input: "F" Type, Female
Audio Input: RCA Phono, Female
RF Output: "F" Type Female
Power: Header, 3 Pin
Controls (Front Panel) Units
Video Level: Control
Aural Carrier Level: Control
Audio Level: Control
RF Output Level Control
Indicators (Front Panel) Units
Power ON: LED, Green
Telephone: Nationwide: Fax: E-mail: Internet:
215-675-2053 800-523-5947 215-675-7543 info@tonercable.com www.tonercable.com