User's Manual

NETWORKED SMART BOOSTER 4
Off-Air Donor
To meet regulatory compliance and to assure optimum performance, the approved Cel-Fi External Antenna
must be used (refer to Legal Insert for a list of approved antennas). The WAVE Portal is used to simplify this
step. For applications in rural areas, the internal antennas of the NU may be used.
For best results, test donor signal locations during normal peak usage hours.
1. Determine best existing Off-Air signal location in the building (using phone signal bars), usually near
windows.
a. OPTION: Run a few speed tests on a phone at each location. Higher data rates indicate better signal
quality.
b. ADVANCED: Evaluate signal quality parameters (LTE: RSRQ and SINR/CINR; WCDMA: Ec/Io or CQI).
2. NU Internal antennas are sufficient if signal quality is good. If signal quality is poor, use an external antenna.
3. NOTE: The approved external antenna supplied by Nextivity is intended for indoor use. If the antenna is to be
mounted outdoors, the installer is responsible for proper lightning surge protection and cable weatherproof-
ing (sold separately).
NU Placement based upon System Configuration
<-15
<0
0
<-16
0
LTE RSRQ dB
LTE SINR dB
LTE CQI
WCDMA Ec/Io dB
WCDMA CQI
-3
+30
15
-3
30
QUALITY INDICATORS
POOR BEST(MAX)
TIPS FOR N U PLACEMENT
• Plan to mount the NU within reach of an AC outlet.
• Plan cabling from the NUs to the CUs (use existing unused LAN distribution cables from a
central patch panel, or plan to run new cables).
• If using internal NU antennas, it is best to not run or coil the cabling immediately behind the NU
to avoid effects of metal close to the antennas.