Pico Macom PFAM550MT Specifications

Text of the manual

Pico Macom’s PFAM-MT series are frequency agile professional re-broad-

cast grade, microprocessor controlled CATV modulators. The PFAM-MT series features a composite audio-video IF loop, which provides compatibility with encoders, ghost cancellers, and video-override applications. The phase-locked loop frequency control, double heterodyne conversion, and superior SAW filtering minimize adjacent channel interference and assure accurate and spurious free output. The PFAM550MT provides over 62dBmV output from CATV channels 2 to 78 including channels 95 to 99 (54-550 MHz) while accommodating HRC and IRC offset frequencies. The PFAM860MT expands this frequency range to 860MHz, covering CATV channels 2-135. Channel selection is accomplished via channel up/down buttons located on the front panel while built-in RF muting circuitry prevents interference during online channel reassignment. Rear-panel connectors accommodate both BTSC composite (MPX) and 4.5MHz stereo insertion. The modulator is shipped with all internal adjustments preset. The unit conforms to FCC Docket 21006 for frequency accuracy. Pico Macom backs up this product with its industry leading 5-year limited warranty. PFAM-MT Series CATV Microprocessor-Control Agile A/V Modulators 135 Channel Range (PFAM860MT) 54-860MHz (CATV 2-135) 82-Channel Range (PFAM550MT) 54-550 MHz (CATV 2-78, 95-99) Re-broadcast quality specifications exceed those of fixed channel modulators 60 dBmV minimum output for optimum carrier-to-noise performance Composite and separate audio and video IF loops allow compatibility with encoders, ghost cancellers, and video override applications Microprocessor control enables digital push-button channel selection for ease of installation, configuration, and servicing State-of-the-art digital phase-locked loop (PLL) design guarantees precise frequency locking for solid drift-free operation Digital display provides quick channel identification Front panel controls and test point enable easy setup and monitoring SAW filtered for superior adjacent chan- nel performance enables drop-in channel expansion In-band carrier-to-noise ratio >65dB ensures superior picture quality Tracking filter technology improves overall system carrier-to-noise performance Superior design including automatic band splitting filters for superior carrier- to-noise ratio CATV Microprocessor-Control Agile A/V Modulators www.picomacom.com Headend & Electronics 355 Parkside Drive San Fernando, CA 91340 Ph: 818-493-4300 Toll Free: 800-421-6511 Fax: 818-493-4433 A-23 Rev. 12/02 PFAM-MT Series

PFAM550MT 82 channels (2-78 & 95-99)

PFAM860MT 135 channels (2-135) Frequency Range: 54-550 MHz & 54-860Mhz Output Level: 60 dBmV min., 62 dBmV typ., adjustable from front panel Output Impedance: 75 ohms Output Return Loss: 15 dB Audio/Video Ratio: Adjustable -7 to -22 dB below video carrier Frequency Stability: ±5 kHz in aeronautical band Spurious Output: -60 dB below video carrier with A/V ratio @ -15 dB C/N (In-Band): >65 dB C/N (Out-of-Band): >70 dB Fv+6 MHz (Upper Adj. Reject): >60 dBc Fv-1.5 MHz (Lower Adj. Reject): >60 dBc I.F Frequency: Video 45.75 MHz Audio 41.25 MHz Input Level: 1.0 Vp-p min for 87.5% mod. Input Type: Clamped video neg. sync 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: *See note Hum and Noise: -60 dB @ 87.5% modulation Video Signal to Noise: -60 dB minimum (weighted) Input Level Range: 0.5 V p-p to 1.5 V p-p *NOTE: Meets FCC group delay predistortion requirements for color transmission. Power Input: 120 VAC, 60 Hz, 28 W Operating Temperature: -10° C to + 50° C Dimensions: 19˝(L) x 9˝(D) x 13/4˝(H) Weight: 8.2 lbs. Connectors: RF & Video “F”type Audio Terminal strip Baseband Input Impedance: 600 Ohms unbalanced Baseband Input Level: 0.5 V p-p for 25 kHz peak dev Pre-emphasis: 75 microseconds Flatness: Left Audio 1.5 dB max. 50 Hz to 15 kHz Right Audio 1.5 dB max. 50 Hz to 15 kHz RF Video Audio General Product Specifications CATV Microprocessor-Control Agile A/V Modulators AGILE AUDIO VIDEO MODULATOR PFAM550MT OVER MOD VIDEO ADJ VIDEO AUDIO ADJ OVER MOD AUDIO VIDEO/AUDIO RATIO OFFSET STD HRC +25K +12.5K CHANNEL SELECT -30dB TEST POINT RF LEVEL RF OUTPUT RF OUT COMP IF OUT VIDEO IF IN AUDIO IF IN VIDEO IF OUT AUDIO IF OUT 4.5MHz IN VIDEO IN COMP IF IN LEFT AUDIO RIGHT GND. AUDIO 117VAC 60Hz 38W 600W MAX 125VAC 0.5A CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH SAME TYPE 0.5A 125V FUSE FUSE Front View Rear View Ordering Information PFAM550MT PFAM860MT www.picomacom.com A-24 Rev. 12/02 355 Parkside Drive San Fernando, CA 91340 Ph: 818-493-4300 Toll Free: 800-421-6511 Fax: 818-493-4433 Specifications Subject to Change © Copyright 2003 Pico Macom, Inc.

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