Wireless Engineering Ltd Co. SB-850-1900 Manuale Utente

If the LIMIT light is off and the POWER light is on, then the sohoBoost™ is

operating normally and the EXT3, EXT2, EXT1 lights will give you an idea of how
much signal the Donor antenna is capturing, with EXT3 being the strongest

signal and EXT1 the weakest. Notice that the sohoBoost™ will also function
properly (at its maximum sensitivity) if none of thee EXT lights will be lit,

although in such extreme case you may want to upgrade the Donor antenna to
the biggest available (the GiAnt™) or stack as many antennas as necessary

(vertically, on the same pole) via an EMSplit™, EMSplit3™, or EMSplit4™ (each
additional antenna will add 3dB to the overall sensitivity, so three 28 dB

antennas, for example, will result in an overall gain of approximately 34 dB).

Special Situations

Notice: In all of the issues described below, we are ruling out the possibility of
an equipment malfunction, because each sohoBoost™ is individually tested right

after manufacturing and then right before being sold, however, in the very rare
even where you suspect a malfunction, please contact us at

support@wireng.com for a warranty repair or exchange. We're also ruling out
cables/connectors short-circuits or discontinuities, as it is very easy to check for

such even using a simple multimeter.

Issue: The structure where you need to enhance coverage is among multiple
cellular towers, and you want to capture the signal from/to all towers.
Solution: Simply use the UniAnt™, which is omni-directional, or if that's not

possible because the LIMIT light detects feedback, then install one Donor
antenna for each tower, individually aiming them at each tower, via an EMSplit,

EMSplit3™, or EMSplit4™.

Issue: The LIMIT light is always on, no matter the distance or orientation of the
Donor and Coverage antennas.
Solution: For such small/difficult environments we recommend a lower-gain

antenna, for example our ultra-compact SleekAnt, or an antenna with a shield
(such as our YagiRef series or the UniAnt for omni). If that fails, however, you

must add one or more WBSA™ (Wide Band Signal Attenuator) to either or both
sohoBoost™ ports, to limit it's power and range. For example, if the EXT3 both

the EXT3 and EXT2 lights are on, that means that the outside signal has plenty
of strength, and thus adding a WBSA to the Donor port should resolve this

issue.

Issue: None of the three EXT lights are on, and there is no coverage
enhancement (or the enhancement is barely noticeable) near the Coverage

antenna(s).
Solution: The outside signal is too weak, either because the provider(s)
tower(s) is too far, or it is blocked by obstacles (trees, building, hills, etc.).

Simply upgrade to the most powerful Donor antenna available, called the
GiAnt™, or if you already have the GiAnt™ installed, try different orientations

(to catch a "bouncing" signal) or add more GiAnt™ stacked vertically and aimed
in the same direction (up to four GiAnt™ using the EMSPlit4™).