For the effective coverage with GSM signal in the desired area you will need an antenna. If you use the amplifier outdoor you will need to use the outdoor antenna. You also need such an antenna if you are receive the GSM operator signal outdoors.
Specifications:
Frequency
Uplink 800-2500MHz
Gain: (dB);
Uplink 7DB
Input-output impedance:
50Ω / N connector
Operating temperatures:
-10 ℃ ~ 60 ℃
Size:
200x180x30mm
Maximum power:
50W
Connector:
N-connector, FEMALE
Weight:
0.48 kg.
Color:
white
Antenna for GSM signal booster (external)
video Antenna for GSM signal booster (external)
Antenna for GSM signal booster (external) (ID: R07)