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Pico Macom Broadband - A860 - Macom Series Agile Modulator - Pico Macom Products - Macom Professional Series - CableNet Connectivity - Active Distribution Components - Connectivity and Drop Components - Headend and Electronics - Fiber Optic - Passive Distribution Components - Installation Tools and Instrumentation


It’s the heart and soul of your operation. Day in, day out delivering quality video, audio and data to your customers. There’s no bigger investment in your system than your headend electronics. Now think about what goes into a great headend: high-quality electronic equipment with state of the art design and engineering, equipment that you’re proud to see on the headend rack. Sleek and stylish on the outside. Powerful and reliable on the inside. Versatile and practical all around. Agile to meet your changing needs and able to reach your bandwidth requirements with capacity to grow. Specs to make you smile and performance to make your customers sit up and notice. Well, how about that: We’ve just described the Macom Professional Series headend products.

Macom Professional Series

A860 : Macom Series Agile Modulator


  • Re-broadcast quality performance specifications match those of fixed channel modulators
  • Integrated BTSC Stereo (optional)
  • 60dBmV minimum output for optimum carrier-to-noise performance
  • Precision SAW filter for superior adjacent channel performance enables drop-in channel expansion
  • State-of-the-art digital phase-locked loop (PLL) design guarantees precise frequency locking for solid drift-free operation
  • Superior design including automatic band-splitting filters for excellent carrier-to-noise ratio (>65dB)
  • Bright LED bar graph provides simple modulation set-up
  • Microprocessor tuning control provides digital display with push-button channel selection for ease of installation, configuration and servicing
  • Rear panel interfaces accept baseband video and three audio formats to provide maximum installation flexibility
  • Composite and separate audio and video IF loops allow compatibility with encoders, ghost cancellers and video override applications
  • MPX stereo loop provides encoded stereo input and compatibility with Emergency Alert equipment
  • IRC and HRC input and output offset available for frequency setting in systems using offset channels


RF Output
Frequency Range 54-860MHz
Channels CATV 2-135 / UHF 14-69
Level 60dBmV min
Level Adjustment 20dB
Impedance 75Ω
Frequency Stability ±3 kHz
Audio/Video Ratio -10 to -20dB Adjustable
Output Return Loss -18dB
In Band Spurious -62dB
Out of Band Spurious -65dB
VSB Response -60dB min
C/N (In-Band) >62dBc
C/N (Out-of-Band) >65dBc
IF Output
Video Level 38dBmV
Video Carrier Frequency 45.75MHz
Audio Carrier Frequency 41.25MHz
Audio Level 22dBmV
Composite Level 35dBmV
Video Stability ±3 kHz
Audio Stability ±2 kHz
Impedance 75Ω
4.5MHz Input
Level 37dBmV
Impedance 75Ω
Video Input
Level .7–1.0 V p-p
Frequency Response ±1.0dB max
Impedance 75Ω
Differential Gain < 2% typ
Differential Phase < 1° typ
Chrom / Lumin Delay ±8 ns
Hum and Noise -60dB
Audio Input
Level – Mono 0.5 V p-p – 1 V p-p
Level – Left Audio 0.5 V p-p – 1 V p-p
Level – Right Audio 0.5 V p-p – 1 V p-p
Frequency Response ±1.5dB max
Impedance 600Ω
Preemphasis 75 μs Switchable
Level 2.2 V p-p
Impedance 500Ω
Response 1dB, 50 Hz – 14 kHz
Total Harmonic Distortion < 0.3%
S/N 75dB
Separation 35dB, 50 Hz – 12 kHz
Power Input 90-260 VAC, 28 W
Operating Temp. -10°C to 50°C
Dimensions 19˝(L) x 12˝(D) x 1.75˝(H)
Weight 7.8 lbs.
Connectors RF & Video “F” type
Audio 600Ω Terminal Strip



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