This manual introduces the installation and use of the F27/F23/F20-5S signal booster.
The Huaptec F27/F23/F20-5S is a bi-directional amplifier designed to amplify weak 2G, 3G, and 4G signals for mobile users. The system consists of an industrial booster unit, a 12V/7A power adapter, and installation hardware. It features an embedded CPU with intelligent isolation (ISO) and automatic level control (ALC) to prevent self-oscillation and ensure clear voice and high data speeds.
| Supported Networks | 2G, 3G and 4G |
|---|---|
| Power Supply | 12V/7A |
| Max Indoor Antennas | 15 |
| Gain Control Range | 31dB |
| LCD Display | ISO status, ALC status, actual gain and downlink output power |
The ISO alarm flashes when the repeater does not have enough isolation between the outdoor and indoor antennas.
The AIC alarm flashes when the repeater is receiving too strong a signal from outside, causing output power to get overrated.
The self-adaptive system automatically adjusts the booster to obtain its best performance in 30 seconds after plugging it in.