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MPCMA

Descriptions

The 

MPCMA

 is a professional grade microprocessor-controlled agile audio/video 

 

mini-modulator. 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.

Universal-Chassis Agile A/V Mini-Modulator

MPCMA

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  

phase-locked-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 

 pre-emphasis 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

Universal-Chassis Agile A/V Mini-Modulator

4

Rev. 04/03

Ph:800-421-6511

www.picomacom.com

Summary of Contents for MPCMA

Page 1: ...Installation and Operation Manual MPCMA Universal Chassis Agile A V Mini Modulator Operation Manual Rev 04 03 Ph 800 421 6511 www picomacom com ...

Page 2: ... a bathtub washbowl kitchen sink laundry tub in a wet basement or near a swimming pool and the like 8 Accessories Do not place this product on an unstable cart stand tripod bracket or table The product may fall causing serious injury to a child or adult and serious damage to the appliance 9 Ventilation This video product should never be placed near or over a radiator or heat register This video pr...

Page 3: ...as been exposed to rain or water d If the product does not operate normally by following the operating instruction Adjust only those controls that are covered by the operating instructions An improper adjustment may result in damage and will often require extensive work by a qualified technician to restore the product to its normal operation e If the product has been dropped or the cabinet has bee...

Page 4: ... 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 Universal Chassis Agile A V Mini Modulator MPCMA 135 Channel Range 54 860 MHz CATV 2 13...

Page 5: ...I F Frequency Video 45 75 MHz Audio 41 25 MHz RF 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 Video Hum And Noise 60 dB 87 5 modulation Audio Baseband Input ...

Page 6: ...nge channel to higher number 7 Channel Select Push this button to change channel to lower number 8 Channel Lock Control Switch is used to prevent accidental change of channel 9 Channel Display Indicates selected channel and that power is on when lit 10 HRC IRC Off set Control Slide switch selects standard HRC and IRC frequencies 11 Pre emphasis on off Allows preemphasis to be disabled when used wi...

Page 7: ...side of module to HRC or IRC Unit is shipped with this switch in the STD position 2 If the audio source is BTSC stereo slide the preemphasis switch inside the side of module to off Unit is shipped with this switch in the on position 3 Align the top and bottom edge of module with the guide channel in chassis 4 Slide module into chassis 5 Connect the 3 pin molex power supply connector 6 Connect a ca...

Page 8: ...erchandise authorization RMA number for the failed equipment and ask for a loaner unit We will issue an invoice for the List Price of the loaner unit plus shipping costs When you receive the loaner unit pack the failed unit in the loaner unit s box and ship it freight prepaid to Pico Macom for repair When you receive the repaired unit a new RMA number will be provided in the box Carefully pack the...

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