Pico Macom MPCM45 User manual

MPCM45
125-Channel Range 54-806
MHz (CATV 2-125)
45 dBmV adjustable output
for optimum carrier-to-noise
performance
Compatible with most manu-
facturers mini-modulator
chassis
Digital phase-locked loop
(PLL) design guarantees
precise frequency locking for
solid drift-free operation
BTSC stereo compatible
pre-emphasis disable switch
provides pass-through for
stereo signals
SAW (surface acoustic wave)
filtered for superior adjacent
channel performance enables
drop-in channel expansion
In-band carrier-to-noise ratio
>60 dB ensures superior
picture quality
Front panel access to controls
enables easy setup
IRC and HRC offset available
for frequency settings in sys-
tems using offset channels
Optional PAL format
channels available
The Pico Macom MPCM45 is a professional grade high-performance CATV mini-modu-
lator.This modulator accepts any audio-video baseband television signal and provides a
45dBmV minimum output on CATV channels 2 to 125 (54-806 MHz) while accommodat-
ing HRC and IRC offset frequencies.The unit can be reconfigured to any output channel
within band by qualified service centers. Up to 12 or 16 units can be installed “mix-and-
match” in Pico Macom’s MPC12, MPS12, MPC12R or MPC16 chassis with MPCMA
agile mini-modulators or MPCD mini-demodulators. Its universal design enables it to be
installed in other manufacturers’ mini-mod chassis.The unit’s phase-locked loop (PLL)
circuitry and unique multi-stage output bandpass filtering ensure accurate and spurious-
free output. In addition, the MPCM45 uses SAW filtering with FCC group delay correction
circuitry to provide superior adjacent channel selectivity.The MPCM45 modulator is
shipped with all internal adjustments preset. Pico Macom backs up this product with its
industry leading 5-year limited warranty.
MPCM45
Universal-Chassis Single Channel A/V Mini-Modulator
Universal-Chassis Single Channel 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-47
Rev. 12/02

MPCM45
Channels: 125 Channels
(CATV 2-125)
Frequency Range: 54-806MHz
Output Level: 35 to 45 dBmV adjustable
from front panel
Output Impedance: 75 Ohms
Audio/Video Ratio: Adjustable -10 to -25 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
Carrier-to-noise ratio
(in-band): >60 dB
Carrier-to-noise ratio
(out-of-band): >60 dB
Fv-1.5 MHz: >55 dBc
Fv-6.0 MHz: >60 dBc
Input Level: 1 V p-p min for 87.5% mod.
Input Impedance: 75 Ohms
Input Level Range: 0.5 V to 1.5 V p-p
Differential Gain: <5% (10 to 90% APL)
Differential Phase: <5° (10 to 90% APL)
Chrominance Luminance delay:See note
NOTE: Meets FCC group delay predistortion correction for
color transmission.
Power Input: +12 VDC, +5 VDC
Operating Temperature: -10° C to +50° C
Dimensions: 1˝(W) x 71/2˝(D) x 31/2˝(H)
Weight: 0.7 lbs.
Connectors: RF: “F” type
Power: 0.100˝ center 3-pin
Audio Input Impedance: 5k Ohms
Baseband Input Level: 0.5 V p-p for 25 kHz peak dev.
Preemphasis: 75 microseconds
Flatness: 1.5 dB max. 50 Hz to 15 kHz
RF Video
Audio
General
Product Specifications
Universal-Chassis Single Channel A/V Mini-Modulator
M
P
C
M
45
AUDIO
VIDEO
PWR
RF
A/V
RATIO
CH.
4
Ordering Information
MPCM45 – Channel
www.picomacom.com
A-48
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.