Product Overview
AMCM-860 is a frequency-agile analog audio/video modulator available in NTSC channels 2-135 (54-860 MHz). Models are available in both stereo and mono audio inputs. This 4th generation of AMCM-860 is equipped with the CALMTones feature, utilizing Audio AG
Features:
- Audio AGC feature prohibits commercials that accompany broadcast programs from:
- (i) having modulation levels substantially higher than the broadcast program; and
- (ii) having an average maximum loudness substantially higher than that of the broadcast pro
- Audio AGC feature prohibits commercials that accompany broadcast programs from:(i) having modulation levels substantially higher than the broadcast program; and(ii) having an average maximum loudness substantially higher than that of the broadcast program.
- Audio AGC feature provides consistent audio level among all broadcast programs on different channels and amongdifferent programs within the same channel
- Compact design allows for deployment of 12 channels in 2RU
- Utilizes SAW filters for improved performance
- Die-cast chassis for RFI immunity
Specifications:
- INPUT
- Video:
- Connector:: "F" Female
- Impedance:: 75 O
- Return Loss:: 24 dB
- Input Level:: 1.0 volt peak-to-peak (87.5% depth of modulation)
- Frequency Response:: 1.0 dB peak-to-valley (fv to fv+4.2 MHz)
- Peak-to-Peak Video-to-RMS Hum Ratio:: 65 dB
- Signal-to-Noise Ratio:: 62 dB (Weighted; 4 MHz bandwidth)
- Differential Gain:: 2.0% (87.5% depth of modulation)
- Differential Phase:: 1.0 degree (87.5% depth of modulation)
- Chrominance/Luminance Delay:: Per FCC Requirements
- Mono Audio(standard):
- Connector:: RCA
- Input Impedance:: Greater than 10 kO, unbalanced
- Input Level:(for 25 KHz deviation): 0.5 - 4.0 volt peak-to-peak (constant AGC range)
- Frequency Range:: 50 Hz to 15kHz
- Frequency Response:: ± 1 dB
- Total Harmonic Distortion:: 1% @ 25 kHz deviation
- Signal-to-Noise Ratio:: 66 dB
- Stereo Audio (optional):
- Connector:: RCA
- Input Impedance:: Greater than 10 kO, unbalanced
- Input Sensitivity:(for 55 kHz peak deviation): 0.5 - 4.0 volt peak-to-peak (AGC range with pilot tone)
- Frequency Response:: ± 0.75 dB (50 Hz to 12 kHz)
- Separation:: 20 dB @ 50 Hz to 10 kH
- Output
- Connector:: F” Female
- Impedance:: 75 O
- Return Loss:: 12 dB
- Frequency Range:: 54 to 860 MHz (NTSC CATV Ch. 2 -135)
- Power Level:: +45 dBmV
- Power Level Range:: 10 dB continuously adjustable
- Carrier-to-Noise:(In Channel): 63 dB
- Broadband Noise:: 75 dBc (@ +45 dBmV output level, 4 MHz bandwidth)
- Spurious Outputs:: 60 dBc
- Aural/Visual Carrier Ratio:: 11 to -19 dB continuously adjustable
- 4.5 MHz Aural Inter-carrier Freq. Tolerance:: ±150 Hz; 25°C
- Visual Carrier Frequency Tolerance
- Standard Channels:: ±10 kHz; 32 to 122 °F (0 to 50 °C)
- FCC Aeronautical Channels:: ±5 kHz; 32 to 122 °F (0 to 50 °C)
- General
- Dimensions (W x D x H): 1.0 x 7.78 x 3.5 inches (25 x 198 x 89 mm)
- AMCM Modules:
- MIPS-12C Power Supply:: 4.6 x 7.5 x 3.5 inches (106 x 191 x 89 mm)
- MIRC-12V Chassis:: 19 x 12.0 x 5.25 inches (483 x 305 x 133 mm)
- MIRC-4D Chassis:: 19 x 9.0 x 1.75 inches (483 x 229 x 44 mm)
- Power:
- MIPS-12C Power Supply:: 100-240 VAC; 50/60 Hz
- MIRC-4D Power Supply:: 100-240 VAC; 50/60 Hz
- Power Dissipation:: ~ 5 W (max. per AMCM Module)
- Weight:
- AMCM Module:: 0.8 lbs (0.36 kg)
- Fully Loaded Chassis:: 15.8 lbs (7.2 kg)
- Operating Temperature:: 32 to 122 °F (0 to 50 °C)
- Storage Temperature:: -13 to 158 °F (-25 to 70 °C)
- Operating Humidity:: 0 to 95% RH @ 35 °C max, non-condensing
- Storage Humidity:: 0 to 95% RH @ 35 °C max, non-condensing
