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Choosing a Satellite Dish Size
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Satellite reception depends on several factors. One of the most
important factors is DISH SIZE. Most of the satellites over North America can be received
with the dish that is included in a satellite system purchase. Occasionally, customers
want access to a channel on a satellite that is either further away on the arc (signal is
weak) or the footprint is limited (signal strength varies within the footprint).
The best way to choose a dish size is to look at the footprint for
the satellite you will be aiming for. On our free-to-air channel-listing page at
http://americansatellitedistributors.com/main/loading-free-to-air-channels.html, there are links to the
footprints for the satellite. See below:
By clicking on ‘Telstar 5’ in the third column, you will get a map
of the satellite footprint. The footprint shows dB values for the geography of the
footprint. The map below shows that Dallas receives a dB value of about 50. But San
Juan, Puerto Rico receives a value of 44.
Importantly,
once the dB value is discovered, the required dish size for the location and desired
satellite must be determined.
|
C-Band |
Ku-Band DVB |
|
EIRP
dB |
Residential |
Commercial |
EIRP
dB |
Residential |
Commercial |
|
42 |
1.2m |
2m |
50 |
55cm |
75cm |
|
41 |
1.5m |
2m |
48 |
75cm |
90cm |
|
40 |
1.5m |
7.5ft |
46 |
80cm |
90cm |
|
39 |
180cm |
10 ft |
44 |
90cm |
1m |
|
38 |
2.0m |
10 ft |
42 |
1m |
1.2m |
|
37 |
7.5 ft |
12 ft |
41 |
1.2m |
1.5m |
|
36 |
8.5 ft |
12 ft |
40 |
1.5m |
1.8m |
|
35 |
10 ft |
16 ft |
39 |
1.8m |
2.0m |
|
34 |
10-12 ft |
16 ft |
38 |
1.8m |
2.4m |
As
always, make sure that your dish will have a sure aim toward the satellite you will be
aiming for. Low elevation angles for your dish are tricky. Houses, trees and other
objects can obstruct the signal pathway to the satellite dish. Dishes above 1 meter are
subject to the zoning restrictions provided for by HOA and city ordinances. Dishes that
are 1 meter in diameter and smaller are excluded from those restrictions. Your legal
right to own and reveal a satellite dish that is 1 meter or smaller in diameter is
provided for by the
Telecommunications Act of 1996.
*Homeowners only. Apartment
and condominium residents and all renters should always consult with their landlord or
management company. |