CEL-FI GO X Installation Manual page 4

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Indoor Antenna Types & Placement
When deciding the placement of your indoor antennas, you'll need to consider the type of
antennas in your kit.
Panel antennas
A panel antenna has a narrower "spray" (technically called a"beamwidth"). This means that
it directs signal in one direction, and not in a circle, like a dome antenna. Panel antennas
should be installed near the perimeter of the coverage area for best results. For example,
you might use a panel at the end of the hallway or at one end of your house.
Standard and Ultraflat Dome antennas
Dome antennas should be installed centrally to the area you are looking to cover. Some (but
less) signal will also radiate upwards to cover the floor above.
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Outdoor Antenna Location & Aiming
Finding the best location possible for the Outdoor Antenna is critical. There are two
things you need to consider:
1
Isolation from the indoor antennas
2
Signal quality
Signal quality is very important: the better the signal at the Outdoor Antenna location,
the better the signal that the amplifier has to boost.
How To Measure Signal Quality
For some buildings, the location with the best signal may be on top of the roof. In
others, the best location is the side of the building. The best way to find out is to test.
There are two ways you can measure signal quality:
1
You can simply look at the number of bars on a phone connected to the carrier
that you're boosting. This is a crude measure, but if you have 3 or more bars of
signal, you should be fine.
2
You can use use Field Test Mode on Apple iOS devices or LTE Discovery on
Android phones to measure SINR, a measure of signal quality. You can read more
repeaterstore.com/fieldtest
about these here:
Note: You can also measure the SINR using the "Advanced" tab of the Cel-Fi Wave
Application, which is explained at the end of this document.
To find the best Outdoor Antenna location: walk around the perimeter of your building
with your phone, and if you can, get up on the roof. You're looking for a location with
good SINR (ideally above 5 dB) and good isolation from the indoor antenna locations.
Fine-Tuning and Aiming:
In the "Outdoor Antenna Positioning" section near the end of this guide we explain the
Wave application's "Antenna Position Test."
The Antenna Position Test can help you test and compare multiple Outdoor Antenna
locations, and will help you aim the antenna at the source of the best signal.
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