*LCD display of operating figures.
*Real time isolation check and alarm.
*Self oscillation elimination, auto degrading of output power in case of insufficient isolation detected.
*Auto turn-off in case of excessive self oscillation or over input.
*Idle turn-off, auto turn-off of uplink while no active users in the coverage , lowering interference to BTS.
*MGC, Manual control of output gain with 1dB step in the range of 31dB.
*ALC, auto control of output power, ensuring stable coverage.
*Linkage between uplink and downlink gain, keeping uplink and downlink balanced.
*Compact size, low power consumption and easy to install.
*MTBF: up to 100,000 hours.
C20L series triple band repeater, developed by Amplitec R&D team, is a mobile signal repeater with high intelligence and excellent technical index. It is empowered with EDA digital simulation and Amplitec unique 50Ω impedance matching wiring technology. Equipped with electronic devices and RF components originated from international famous brands, the repeater’s excellent technical index and performance are guaranteed even from the circuit design.
In order to provide 2G, 3G, 4G, 5G coverage solutions for different countries and regions, C20L series repeaters offer multiple choices of triple band combination from the most common frequency bands such as B1,B2,B3, B5, B7, B8, B12, B20, B28, etc. Besides its elegant appearance, compact size and easiness to install and maintain, it has an output power of 20dBm which enables the device to cover an area of 600 ㎡ with proper installation and operation. That makes it an excellent option to solve weak signal problems for homes, offices, elevators, basements, etc.
Ripple in band
Max. Input Power with Damage
ATT Range, 1dB step
ALC (AGC) Range
ALC active @ 10dB, output error
Band name & frequency
Uplink & downlink gain
Downlink output power
Operating normally: display;
Idle turn-off: no display
Operating normally: no display;
Output power degraded (Self-oscillation Elimination): display;
Self oscillation turn-off: flashing
While working at max. Gain: if uplink input is <-80dBm (idle threshold value) for5±1 continuous minutes,system will turn off uplink PA; it will turn on uplink PA instantly, whenever the uplink input is >-75dBm.
Self-oscillation Elimination & Turn-off
Real time isolation check and alarm:if self oscillation (isolation<gain) is detected, system will degrade the output power;if excessive self oscillation(isolation<gain - 15dB) is detected, it will turn off the device.
Over Input Turn-off
If input is out of ALC range, system will turn off both uplink and downlink PA in 5s,and reboot them in 30+-5s;If input is out of ALC range for 3 consecutive times, the system will permanently turn off the devices, until the system is turned on again.
DC: 12 V / 3 A
-10℃ ~ +55℃