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Pico Digital Bi-Directional Combiner (C860)
Pico Digital Bi-Directional Combiner (C860)

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Pico Digital Bi-Directional Combiner (C860)

Brand: Pico Digital           P\N: C860          

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Availability: Usually Ships Same Day
Condition: New

Your Price: $17599

List Price: $242.00


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Solid Signal is an Authorized Reseller of Pico Digital products.
Solid Signal is an Authorized Reseller of Pico Digital products.
The MACOM C860 is a professional re-broadcast grade, rack-mounted, high isolation, passive headend signal combiner available in a 24-channel configuration. This unit combines the outputs from multiple modulators and processors into a single common broadband output. The high quality directional coupler design enables high isolation between input ports, providing minimum interaction between digital and/or analog input sources. Plug-in equalizers and attenuators provide system balancing capability and a high isolation sub-band output port for return path applications further enhance the versatility of this combiner.


  • Broadband 5-1000MHz

  • -20dB test port provides convenient access for headend testing and system monitoring

  • Broadcast quality specifications for unparalleled picture quality

  • Built in Return-Path Diplexer

  • Sub-band output port provides high isolation VHF/UHF ingress-free return path for CMTS and remote audio/video application

  • >18dB return loss provides reduced reflections for exceptional digital signal performance

  • Directional coupler design provides improved carrier-to-noise! system performance and picture quality

  • High -50dB port to port isolation provides spurious carrier rejection and minimizes undesired channel interaction, thereby reducing picture distortion

  • Passive design allows bi-directional flexibility for two-way digital and analog requirements

  • Plug-in equalizers and attenuators (included) enable uniform gain and slope system balancing for minimum distortion


The MACOM D860 is a frequency agile professional re-broadcast grade, microprocessor controlled CATV demodulator. Its
phase-locked loop frequency control, envelope signal detection and superior SAW filtering minimize adjacent channel interference
and assure accurate and spurious-free performance. The unit accepts any NTSC television signal in the 5.75-806 MHz frequency
range, converting it to base band video and audio while maintaining over 60 dB S/N ratio.
The sub-band capabilities allow thereception of remote channel origination for redistribution over the entire cable system, making it
the ideal signal processor in government and institutional environments. A rear panel switch enables sub-band channel operation. IRC and HRC offsets can be activated via push-button switches on the front panel. The unit’s PLL circuitry in conjunction with the nonvolatile memory contained in the microprocessor ensures easy and reliable channel selection and restoration. The D860 provides three additional outputs: (a) an IF output to monitor tuner status and use in encoder, ghost canceling and video override applications, (b) a 4.5 MHz sub-carrier output, and (c) a broadband multiplex (MPX) output for high quality BTSC stereo pass-through. The D860 demodulator is shipped with all internal adjustments preset. The MACOM line is backed by an industry leading 5-year limited warranty.

RF Input
Frequency Range: 5.75-806 MHz
CATV Channels: T7-125
Broadcast Channels: 2-69
Level: 0-15 dBmV
Impedance: 75 ohms
Return Loss: -18 dB

IF Output
Composite Level: 35 dBmV
Impedance: 75 Ohm

Video Output
Level: .8-1.0 V p-p
Impedance: 75 Ohm
Differential Gain: <2% typ
Differential Phase: <1° typ
Chrom/ Lumin Delay: ±30 ns

Audio Output
Level: .8-1.0 V p-p
Impedance: 600 Ohm

MPX Output
Level: .8-1.0 V p-p
Format: BTSC
Impedance: 600 Ohm

4.5 MHz Output
Level: 35dBmV
Impedance: 75 Ohm

Power Input: 90-260 VAC, 12 W
Operating Temperature: -10°C to 50°C
Dimensions: 19½(L) x 12½(D) x 1.75½(H)
Weight: 7.8 lbs.
Connectors: RF & Video “F” type
Audio: “F” type & Terminal strip



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