Dawnco PCMA860-HQ Kurulum ve Kullanım Kılavuzu - Sayfa 4

Modülatör Dawnco PCMA860-HQ için çevrimiçi göz atın veya pdf Kurulum ve Kullanım Kılavuzu indirin. Dawnco PCMA860-HQ 7 sayfaları. A/v mini-modulator

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Descriptions

PCMA860-HQ

Universal-Chassis Agile A/V Mini-Modulator

135-Channel Range 54-860 MHz

(CATV 2-135)

>45dBmV min adjustable output

for optimum carrier-to-noise

performance

Compatible with most manufac-

turers mini-modulator chassis

State-of-the-art digital phase-

locked-loop (PLL) design guaran-

tees precise frequency locking for

solid drift-free operation

Microprocessor control enables

quick digital push-button channel

selection for ease of installation,

configuration, and improved sys-

tem 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 aeronauti-

cal 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

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 inter-

ference during online channel reassignment. features >-90dB out-of-band

carrier-to-noise ratio, allowing virtually unlimited numbers of Mod'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 chassis with

mini-modulators or 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.

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 modulator is shipped with all internal adjustments

preset.