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Miteq ASM-100 Audio Subcarrier Modulator Expansion System
- Stock: 2
- Code: BS20073
- Model: asm-100
The ASM-100 expansion audio subcarrier modulator system is a one-rack unit, capable of supporting up to two remote-programmable audio subcarrier modulators. This expands the total number of subcarriers supported by the VM-100R video modulator system to six.
Expansion subcarrier modulators are locally and remotely programmable (see Option MRVA for VM-100R) via the VM-100R front panel and remote port, respectively. A special port is provided on both the VM-100R and the subcarrier modulator expansion systems for intra-system local communication.
Miteq ASM-100 Audio Subcarrier Modulator Expansion System
Technical Details
AUDIO
Input level ............................................................ +18 dBm maximum
Input impedance .................................................. 600 ohms balanced (others available)
Input return loss................................................... 30 dB minimum
Frequency response............................................ 100 Hz to 12 kHz, 0.6 dB p-p,
40 Hz to 15 kHz, < 1 dB p-p
Harmonic distortion.............................................. < 0.5%, 150 kHz p-p deviation,
< 1%, 840 kHz p-p deviation
Pre-emphasis....................................................... 50/75 µs, J17 and flat response switchable
Signal/noise (weighted) ....................................... > 62 dB, 300 kHz p-p deviation
SUBCARRIER MODULATOR
Subcarrier deviation by audio.............................. Programmable from 25 to 420 kHz peak
(1 kHz programming resolution)
Subcarrier IF level ............................................... Programmable below the main IF carrier level from -35 to -13 dBc
(corresponding to < 2% to > 20% of IF deviation by video) (0.1 dBc programming resolution)
Subcarrier pre-emphasis ..................................... 50/75 µs, J17 pre-emphasis or flat response selection
Subcarrier IF frequency ....................................... Programmable from 5 to 8.2 MHz (10 kHz programming resolution)
Subcarrier limit level ............................................ Programmable from 12 to 20 dBm (0.5 dBm programming resolution)
PRIMARY POWER REQUIREMENTS
Voltage................................................................. 100/120/220/240 VAC, ±10%, rear panel selectable
Frequency............................................................ 47 to 63 Hz
Power consumption ............................................. 20 W
PHYSICAL
Dimensions .......................................................... 19" x 24" x 1.75"
Weight.................................................................. 11 pounds
CONNECTORS
Audio input........................................................... 8-pin DIN
Subcarrier output ................................................. BNC
Remote and local programming .......................... 9-pin male, D type (to VM-100R modulator)
Contact closure.................................................... 9-pin male, D type
Chassis ground.................................................... 10-32 stud
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