Pico Macom MPCMA Specifications

MPCMA

135-Channel Range 54-860
MHz (CATV 2-135)

>45dBmV min adjustable
output for optimum carrier-to­noise 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

BTSC stereo compatible pre­emphasis disable switch pro­vides pass-through for stereo
signals

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

IRC and HRC offset available
for frequency settings in sys­tems using offset channels

The MPCMA is a professional grade microprocessor-controlled agile audio/video mini-mod-
ulator.This modulator accepts any audio-video baseband television signal and provides a
45dBmV minimum output on CATV channels 2 to 135 (54-860 MHz) while accommodating
HRC and IRC offset frequencies. Channel selection is easily accomplished via channel
up/down buttons located on the front panel while built-in RF muting circuitry prevents inter­ference during online channel reassignment.This MPCMA features >-90dB out-of-band car­rier-to-noise ratio, allowing virtually unlimited numbers of MPCMA’s to be combined in a
system without the need for external bandpass filtering. Up to 12 or 16 units can be installed
“mix-and-match” in Pico Macom’s MPC12, MPS12, MPC12R or MPC16 chassis with
MPSM45 and 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 MPCMA 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 MPCMA modulator is shipped with all internal adjustments
preset. Pico Macom backs up this product with its industry leading 5-year limited warranty.

MPCMA

Universal-Chassis Agile A/V Mini-Modulator

Universal-Chassis Agile A/V Mini-Modulator

www.picomacom.com

Headend & Electronics

355 Parkside Drive San Fernando, CA 91340

Ph: 818-493-4300 Toll Free:800-421-6511 Fax: [phone]

A-49

Rev. 12/02

MPCMA

Channels: 135 Channels
Frequency Range: 54-860 MHz

(CATV Ch. 2-135)

Output Impedance: 75 Ohms
RF Output Level: 45 dBmV, adjustable from front

panel (min.)

Output Return Loss: -15 dB
Audio/Video Ratio: Adjustable -7 to -22 dB below

video carrier

Frequency Stability: ±5 kHz in aeronautical band;

conforms to FCC Docket 21006

Spurious Output: -60 dB below video carrier with

A/V ratio @ 15 dB

C/N (In-Band): >65 dB
C/N (Out-Of-Band): >90 dB
Fv+6 MHz (Upper Adj. Rejection): >-60 dBc
Fv-1.5 MHz (Lower Adj. Rejection): >-60 dBc
I.F. Frequency: Video 45.75 MHz

Audio 41.25 MHz

RF

Product Specifications

Video Input Level: 1 V p-p minimum

for 87.5% modulation

Video Input Type: Clamped video negative sync
Video Frequency Response: ±0.8 dB, 30 Hz to 4.2 MHz
Differential Gain: <5% (10 to 90% APL)
Differential Phase: <5° (10 to 90% APL)
Chrominance Luminance Delay:<50 nsec, standard or FCC

predistortion option

Universal-Chassis Agile A/V Mini-Modulator

M
P
C
M
A

V ADJ.

A/V

RATIO

RF OUT

ADJ.

A ADJ.

CH. CH.

+100~

LOCK

CATV

TV

Video

Hum And Noise: -60 dB @ 87.5% modulation
Audio Baseband Input Impedance: 600 Ohms
Audio Baseband Input Level: 0.5 V p-p for 25 kHz

peak deviation

Preemphasis: 75 microsecond
Flatness Audio: 1.5 dB (50 Hz to 15 kHz)

Audio

General

Dimensions: 1˝(W) x 8˝(D) x 3.45˝(H)
Weight: 0.8 lbs.
Power Input: 5 VDC, 12 VDC @ .25A
Operating Temperature: -10° C to 50° C
Connectors: Video In/RF Out “F”type

Audio In RCA

Ordering Information

MPCMA

www.picomacom.com

A-50

Rev. 12/02

355 Parkside Drive San Fernando, CA 91340

Ph: 818-493-4300 Toll Free:800-421-6511 Fax: [phone]

Specifications Subject to Change © Copyright 2003 Pico Macom, Inc.