DMX Digital Audio Satellite Receiver DR500 Guía de usuario descargar pdf (Pagina 9)

Platform Considerations

Rain Fade & Sun Outages

1 Rain fade is a temporary loss of the music signal that is attributed to heavy rainfall. This typically happens only

during very heavy rain.

1 DMX is a digital signal that causes the music to completely “mute” during rain fade.

1 Larger satellite antennas (DMX uses a one meter dish) have fewer rain outages than 18” antennas.

1 Brief Sun Outages (8 to 10 minutes) can occur in March and September when the sun lines up perfectly with

the Satellite.

TOTAL POTENTIAL OUTAGE TIME DUE TO HEAVY RAINFALL IS LESS

THAN .01% OR 8.76 HOURS PER YEAR. DMX IS 99.9% RELIABLE.

Roof Access

1 Landlord Restrictions

o Permission is usually required either directly from the landlord or through the client to install a satellite

antenna on a building.

o Some landlords will require written documentation for the satellite installation.

Installation Considerations

A site survey should be completed by the sales rep for each DBS installation to supply as much information as pos-

sible to the installer. A site survey will determine:

1 Access to Roof or Building

1 Clear Line of Sight to the Satellite

The satellite needs a clear line of site from the antenna to the satellite. Depending on your location it will be

between southeast and southwest. Make sure there aren’t any tall buildings or trees that will block the signal

from the antenna.

1 Azimuth and Elevation

o Azimuth and elevation are the two basic bearing readings needed to determine the line of site access to

the satellite.

o Azimuth is the east-west bearing of the satellite from the site of installation.

o Elevation is the angle at which the antenna looks up at the satellite.

o Use a small compass to determine the appropriate angle.

1 City/County Restrictions

See your Operations Team for help here. A few examples might be:

o Weight limit on a building

o Wind load/ballast requirements

o Antenna size/color restrictions

o Necessary permits – particularly for historical areas

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DMX Digital Audio Satellite Receiver DR500 Guía de usuario Pagina 9