Specialize in Signal Repeater & Jammer R&D and manufacturing since 2006

c20l triple band 3G 4G 5G cellular signal repeater kit with donor antenna & cover antenna

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Amplitec C20L Series Tri-band Cellular Signal Booster

Triple band Cell phone Signal Repeater, Gain 70dB, Output power 20dBm, ALC, AGC, Smart function

The Amplitec C20L Series Tri-band Signal Booster is designed to enhance cellular signals across multiple frequency bands, ensuring reliable connectivity in all countries. Featuring low loss technology, it delivers improved signal strength with minimal interference for clear calls and faster data speeds. Support global mainstream telecommunications operators' 3g4g5g networks, such as: MTN, Airtel, Orange, Safaricom, Vodacom, Glo, Maroc Telecom, Zamtel, Etisalat, Ooredoo, Vodafone, Deutsche Telekom, Telef ónica, TIM...

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.

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C20L Series Triple-Band Cellular Repeater

Developed by the Amplitec R&D team, the C20L Series Triple-Band Cellular Repeater is a high-intelligence mobile signal booster renowned for its exceptional technical specifications. The product integrates Amplitec’s proprietary Digital Noise Suppression technology and 50Ω impedance-matched PCB layout. This advanced design enables the unit to identify and suppress out-of-band interference and system noise floor in real time. By significantly improving the Signal-to-Noise Ratio (SNR), it effectively prevents oscillation or uplink interference issues caused by noise accumulation in traditional repeaters, ensuring seamless coexistence and compatibility with base station systems.

It equipped with an Ultra-Low Noise Amplifier (LNA) featuring a noise figure of NF < 1.8 dB and high-selectivity filters, the C20L can stably receive weak downlink signals as low as -105 dBm. This allows the device to reliably capture signals from remote base stations, even in deep indoor or underground environments, subsequently amplifying and distributing them to eliminate coverage dead zones.

To accommodate the spectrum planning of different countries and carriers, the C20L Series offers various triple-band combination configurations. It comprehensively covers mainstream cellular bands, including but not limited to: B1 (2100 MHz), B2 (1900 MHz), B3 (1800 MHz), B5 (850 MHz), B7 (2600 MHz), B8 (900 MHz), B12 (700 MHz), B20 (800 MHz), and B28 (700 MHz). Users can select the appropriate configuration based on local network standards to achieve integrated enhancement for 2G voice, 3G data, 4G LTE, and 5G Sub-6GHz NR signals.

With a maximum output power of 20 dBm (100 mW), the standard C20L kit includes a 9dBi high-gain log-periodic outdoor antenna (OY0727-0965), a 6dBi indoor panel antenna (IP0727-0665), and RF cables. Combined with Intelligent Gain Control (AGC) and Automatic Level Control (ALC) mechanisms, the booster ensures stable coverage of approximately 600 square meters in typical indoor scenarios without interfering with the donor base station.

Amplitec C20L Series Tri-band Cellular Signal Booster 6

Featuring an elegant appearance, compact size, and easy installation/maintenance, this repeater is the ideal solution for eliminating "dead zones" or "weak signal areas" in residential homes, SME offices, hotel rooms, hospital wards, underground parking lots, elevator cabins, and tunnel entrances. It is particularly suitable for environments with high requirements for communication continuity, voice clarity, and data rates.

Model	C20L-BxBxBx
Frequency Band	Any three in band 1, 2, 3, 4, 5, 7, 8, 20, 25, 28, 66
Bandwidth	Full Bandwidth
Gain	UL 65dB , DL 70dB
Output Power	UL 15dBm, DL 20dBm
Gain Attenuate	1~31dB, Step of 1dB
ALC Control Range	≥30dB
VSWR	≤2.0
Spurious Emission	≤-36dBm @ 9KHz~1GHz, ≤-30dBm @ 1GHz~12.75GHz
ACRR	Fully comply with 3GPP
EVM	Fully comply with 3GPP
PCDE	Fully comply with 3GPP
Noise Figure	≤8.0dB
Group Delay	≤1.5μs
Power Supply	DC 12V /3A
Dimension	17825350mm
Weight	<2.4kg
Note：The letter "x" means the 3gpp 4G band number: 1, 2, 3, 4, 5, 7, 8, 20, 25, 28, 66

Amplitec C20L Series Tri-band Cellular Signal Booster 7

Amplitec C20L Series Tri-band Cellular Signal Booster 8

* 99% pass customs clearance,Amplitec have many certificates,such as CE,RoHS,FCC,etc...

* 100% solve mobile cell phone weak signal problem.

* 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.

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