Winegard SP-1004 Manual De Usuario

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Using Preamplifiers and Distribution Amplifiers 
Amplifiers do not increase the antenna’s signal.  Amplifiers can overcome 
any cable and splitter loss to improve signal strength at the tuner. They help 
get the signal to the tuner in installations with multiple TVs or long cable 
runs in weak signal areas. Long cable runs result in 50% loss of signal for 
every 100 ft of RG6.
Avoid using preamps and amplifiers in urban areas, as the strong signal in 
these areas may be overdriven by additional amplification. 
Cable Selection
RG6 is now the industry standard for coaxial cable. The greatest advantage 
to using this cable over the traditional RG59 is a bit less cable loss. RG6 
is rated at -6dB loss per 100’ run, while RG59 is rated at -8dB loss for the 
same run. This could be a consideration if cable loss is a factor in your 
installation. 
Antennas are often returned that are in perfect working order. Be sure 
to check all connectors for proper installation and fit, or for corrosion on 
existing installations and perform a channel scan anytime you have a 
reception problem.
Troubleshooting Ideas
• Rotate and Rescan. Many signal problems can be solved by re-aiming 
your antenna.
• If the antenna is indoors, try a different location and rescan.
• Check coax for corrosion and shorts.
• If you are having trouble receiving signal, try a direct connection from the 
antenna to the tuner with a new coax cable.
• Run a new channel scan once each month to find new channels that       
  are added to your area or if you have moved the antenna.
• Check the knowledge base http://www.winegard.com/kbase/index.php
• Call Winegard, 1-800-788-4417
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Example of Antenna Grounding as per  
National Electrical Code
1.  Mount the 75 ohm grounding block or discharge unit as close as possible 
to where the downlead enters the house.
2.  The ground wires for both the mast and the downlead should be copper 
or aluminum wire, number eight (8) or larger.
3.  The downlead wire from the antenna to the antenna grounding block or 
discharge unit and the mast ground wire should be secured to the house 
with stand-off insulators, spaced from four (4) to six (6) feet apart.
NOTE:  In the case of a “ground up” antenna installation, it may not  be 
necessary to ground the mast if the mast extends four or more feet into 
the ground. Consult your local code or a licensed electrician for the proper 
depth in your location.
Antenna Lead
In Wire
Ground
Clamp
Electric
Service
Equipment
Antenna
Discharge Unit
(NEC Section 810-21)
Power Service Grounding
Electrode System
(NEC Art 250, Part H)
Ground 
Clamps
NEC - National Electrical Code
Example of antenna grounding as per
National Electrical Code, ANSI/NFPA 70
Grounding Conductor
(NEC Art 250, Part H)
Antenna Mast
75 ohm coax
Grounding Block