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The Pico Macom M860 is a professional re-broadcast grade microprocessor controlled phase-locked loop synthesized single channel audio-video modulator.

The M860 provides 60dBmV minimum output from CATV channels 2 to 125 (54-806 MHz) while accommodating HRC and IRC offset frequencies.

The M860 features a composite audio-video IF loop, wich provides compatibility with encoders, ghost cancellers, and video-override applications.The unit is lab retunable within band via front panel channel selection and minimum output filter retuning.

The M860 is equipped with a pre-emphasis disable switch which enables pass-through of highfidelity BTSC stereo signals where available.

This cost-effective modulator was designed for use in heavily loaded systems requiring high stability and superior picture and stereo sound quality.

Its phase locked loop frequency control, and superior SAW filtering enhances stability, minimizes adjacent channel interference and assures accurate and spurious free output.

Superior out-of-band carrier-tonoise performance is achieved through band-pass filtering at the output amplifier.

The modulator is shipped with all internal adjustments preset. FCC Docket 21006 offsets are standard. Pico Macom backs up this product with its industry leading 5-year limited warranty.

RF Specifications:

• Channels: 125 channels (CATV 2-125)
• Frequency Range: 54-806 MHz
• Output Level: 60 dBmV min., adjustable
• Output Control Range: 13 dB
• Output Impedance: 75 ohms
• Ouput 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): >60dB
• C/N (Out-of-Band): >65dB
• Fv+6 MHz (Upper Adj. Reject): >60dBc
• Fv+1.5 MHz (Lower Adj. Reject): >60dBc
• I.F Frequency:
  • Video 45.75 MHz
  • Audio 41.25 MHz

Video Specifications:

• Input Level: 1.0 V p-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: Meets FCC group delay predistortion requirements for
  color transmission.

Audio Specifications:

• Base-band Input Impedance: 600 ohms unbalanced
• Base-band Input Level: 0.5 Vp-p for 25 kHz peak dev.
• Preemphasis: 75 microseconds
• Flatness: 1.5 dB max. 50 Hz to 15 KHz

General Specifications:

• Power Input: Switching 90-260 VAC
• Operating Temperature: -10° C to +50° C
• Dimensions: 19˝(L) x 9˝(D) x 13/4˝(H) Weight: 7.4 lbs
• Connectors:
  • RF and Video - “F” type
  • Audio - Terminal strip