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MMA860
Descriptions
The MMA860 is a professional grade microprocessor-controlled agile audio/video minimodulator.This modulator accepts any audio-video baseband television signal and provides
a 45dBmV minimum output on CATV channels 2 to 135 (54-860 MHz). Channel selection is
easily accomplished via channel up/down buttons located on the front panel.Up to 12 or 16
units can be installed “mix-and-match” in
Pico Macom’s MPC-12, MPS-12, MPC-12R
chassis with MPCM45 mini-modulators or MPCD mini-demodulators. Its unique design
enables it to be installed in other manufacturers’mini-mod chassis. The unit’s tracking filter
technology and double-heterodyne conversion ensure accurate and spurious-free output.
The MMA860 uses SAW filtering in conjunction with FCC group delay correction circuitry to
provide superior adjacent channel selectivity. The unit’s PLL circuitry in conjunction with the
non-volatile memory contained in the microprocessor ensures easy and reliable channel
selection and restoration.The MMA860 modulator is shipped with all internal adjustments
preset. Pico Macom backs up this product with its industry leading 5-year limited warranty.
Universal-Chassis Mini-Agile Modulator
MMA860
135-Channel Range 54-860 MHz
(CATV 2-135)
>45dBmV min adjustable output
for optimum carrier-to-noise
performance
Compatible with most manufacturers mini-modulator chassis
State-of-the-art digital phaselocked-loop (PLL) design guarantees precise frequency locking for
solid drift-free operation
Microprocessor control enables
quick digital push-button channel
selection for ease of installation,
configuration, and improved system uptime
SAW (surface acoustic wave)
filtered for superior adjacent
channel performance enables
drop-in channel expansion
In-band carrier-to-noise ratio
>65dB ensures superior picture
quality
Automatic selection of aeronautical offsets (12.5kHz, 25kHz) for
trouble-free configuration
Front panel access to controls
enables easy setup
Universal-Chassis Mini-Agile Modulator
1
Ph:800-421-6511
www.picomacom.com
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MMA860
Specifications
Universal-Chassis Mini-Agile Modulator
27
www.picomacom.com
Ph:800-421-6511
Frequency Range: NTSC 54 to 860 MHz
Output Level : +45 dBmV (minimum – 15dB
adjustment range.)
Output Impedance : 75 Ohms
A / V Ratio : Audio carrier level, adjustable
from – 8 to –35 dB (±3dB)
Referenced to video carrier
level.
Frequency Stability : ±5KHZ
Intercarrier Frequency : 4.5MHz ±3.0KHZ
Spurious Outputs : 60 dBc typical, measured at
–15 dB A/V ratio and with
Modulator output level of + 45
dBmV.
RF
Video Input for 87.5%: 0.6Vp-p to 1.5 Vp-p. Manual
gain adjust with front panel
control.
Modulation:
Input Impedance:
75Ohms
Frequency Response: 20Hz to 4.2 MHz ±1dB
Video
Input Level for 25KHz: 100 mVrms to 3 mVrms.
Manualgain adjust with front
panel.
Peak Diviation
Input Impedance:
Greater than 10KOhms,
unbalanced.
Audio
General
DC Power Input: +12V ±5% at 200 mA typical,
230 mA maximum.
+5 V ±5% at 320 mA typical,
380 mA maximum
Operating Temperature: 0°C to + 50 °C ambient.
Size: 1”W * 3.5”H * 7.5” D *
Weight: 10.7 oz.. (0.3 Kg)
MMA860
MMA860
PICO MACOM
Video
Audio
Power
Min
i Agil
e Modul
ator
RF
A/V
001
-- --
++++
CATV
CATV
+100
TV
Related Products
MOR-CS
MPC-12 PHC-24G
MPC-12R PHC-12G
Ordering Information
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