These guidelines are the same for all Mobile repeaters.
Please follow this guide and you signal will be boosted to 5 bars Guaranteed.
Trial and error is allowed. If it works, great, if not do as the instructions say.
Diagram of Installation Guide here
1. Put the external antenna up high where you have got a full 4/5 bar signal (use mobile phone as indicator, if you have a weak outside signal say 2/3 bar you have to purchase the optional extra yaggi as this takes a weaker signal better to the repeater). Make sure that the antennas are at full length apart of the cable and ideally a wall separation.) No kink in the cable as this causes interference.
2. Screw fix cable to the external antenna to the port that says BTS port on the repeater. This will require drilling a 25mm hole or purchase a window jumper this requires no drilling.
3. Fix the internal cable to the mushroom or screw fix the whip antenna to the port that says USER. Connect power and switch on.
4. Signal will be amplified to 5 bars.
If no improvement move the external antenna into a different position, as this is the most fundamental part of the operation.
If decreases in original signal then move the antennas further apart as there is interference being caused.
If no improvement move the external antenna into a different position,
as this is the most fundamental part of the operation.
Hope this helps.