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COM 3000Troubleshooting

Date: Jan 2024 Version 1

Property

Distribution

Network

This network, set up and maintained by the system operator or property owner,

distributes television signals via RF or IP technology. Traditional analog RF plants often

need repairs and upgrades before they pass digital HD programming. RF levels and

signal to noise ratios (Modulation Error Rate) should be tested to industry standards. IP

systems require technicians proficient in IP switch configurations, specifically multicast

networks utilizing Internet Group Management Protocols (IGMP).

PSIP Program and System Information Protocol. Signals included in a digital TV signal define

the display channel. For example, an off-air channel may be broadcast on UHF Ch 38,

but the station call letters are Ch 7. PSIP data instructs the TV to display a virtual

channel 7 on the TV rather than the physical channel 38. PSIP data also includes

current and future programming information.

http://www.atscforum.org/

Satellite

Distribution

Network

This network consists of the dish, LNB and associated equipment necessary to provide

KA/KU band satellite signals to the COM3000. The COM3000 requires a SWiM signal to

each card proportional to the number of tuners desired. It is assumed that installation

technicians have adequate expertise and proper test equipment required to install the

distribution system to DIRECTV specifications.

SD Standard Definition

SWiM Switch Single Wire Multi-Switch – An DIRECTV module used for the distribution of satellite

signals.

SWQAM2 The SWQAM2 is a software key that will add 2 QAM channels per key on a QAM20 /

QAM4.

System

Integrator

The person or company that performs the onsite installation.

System

Operator

The company or organization that typically holds the “right of entry” and is responsible

for installation and all onsite support on a daily basis.

Transcryption The process by which the COM 3000 system converts content streaming from

DirecTV ’s conditional access system to Pro:Idiom encrypted video.

vantiva COM3000 Troubleshooting Manual

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