zBoost
®
TRIO Pro ZBC775 Manual
8
FIFTH: Antenna Aiming
To get the maximum benefit, you will want to take special care to make sure you point the antenna
in the direction of the best signal for your wireless service provider. You may wish to use a YX699
RF signal meter to help during this process or try our zBoost Signal Finder Android App. The
majority of the time a cell tower will hold more than 1 frequency band and/or service provider.
To aim the antenna for maximum signal, you will need a phone operating on the same wireless
network(s) in use at the install location.
Note: A 1 dBm increase is 25% gain in signal strength.
If you do not know which direction the best signal is coming from, once the unit is installed, rotate
the External Antenna in 90 degree increments while measuring the results inside the desired
coverage area.
1. Place the cell phone(s) on a non-metal surface about 6-8 feet from the Base Unit.
2. Turn the signal booster on and wait 30 seconds. Note the number of signal bars displayed
on your cell phone. For best results, you want to place your phone where the phone’s signal
meter displays in the middle of the signal meter range or less so that it can indicate as you
rotate the External Antenna to the optimum direction. If it is reading too high, move the phone
farther from the Indoor Antenna.
3. Record the number of signal bars or dBm________(A) on your cell phone. You can use our
YX699 RF Signal Meter or an application on a smart phone to get the dBm. Leave the phone
in exactly the same place and pointing in the same direction for the following steps. Note the
direction External Antenna starting position ________________.
4. Rotate the External Antenna 90 degrees and then record the phone signal bars ______(B).
Note
Cell phone signal bars are approximate and vary from
phone to phone. The number of bars can fluctuate
widely, depending on the location of the phone, the
position or angle of the phone, weather, etc. Most cell
phone signal meters update every 6 to 10 seconds. An
increase of only one bar typically indicates a 4x to 10x
signal increase.
Cell Tower
Power Supply
Indoor Antenna
Coaxial Cable
TNC-F Connector
Coaxial Cable
External Antenna
15 ft of
vertical
separation
zBoost Base Unit
