C23a-4b Series 4 Bands Signal Repeater

C23A-4B Series 4 Bands Signal Repeater

* All aluminum alloy shell case, better heat dissipation and signal shielding

* Self-oscillation cancellation, auto degrade the gain, when there is insufficient isolation, to cancel the self-oscillation

* Uplink auto stand-by, when there is no mobile users in the coverage area, to minimize the interference to BTS tower.

* ALC, auto level control to limit the output power for stable and safe performance.

* Linkage between uplink and downlink gain, keeping uplink and downlink balanced.

* Independent LED indicators to show the working status of 4 bands.

* MTBF up to 100,000 hours.

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Electrical Specification

C23A-4B series 4 bands signal repeater is a multi bands signal repeater dedicated to specific places with weak outdoor macro cell signal and small indoor spaces. In many cases, the mobile phones display 1-2 signal bars, but cannot be used normally. This is because the signal from mobile phone cannot be transmitted back to BTS. In response to this situation, Amplitec R&D team increased the uplink output power of C23A-4B repeater to 23dBm, plus the power of outdoor antenna, the total radiation power can reach 2W, which greatly increases the transmission distance of the mobile phone's to 10 KM. Amplitec R&D team adopted EDA digital simulation technique & unique 50Ω impedance matching wiring process in circuit design. The core components are all originated from famous international brands, ensuring the stable and excellent performance of the repeater.

This series of signal repeaters supports the combination options of commonly used frequency bands such as B1, B2, B3, B4, B5, B7, B8, B20, B28 to be 4 bands including 1 low frequency plus 3 high frequency. There are multiple model options to work to enhance 2G, 3G, 4G, 5G signal coverage in various regions.

Model	Uplink Frequency	Downlink Frequency
C23A-4B1	824~849/1710~1785/1920~1980/2500~2570MHz	869~894/1805~1880/2110~2170/2620~2690MHz
C23A-4B2	718~748/1710~1785/1920~1980/2500~2570MHz	773~803/1805~1880/2110~2170/2620~2690MHz
C23A-4B3	703~733/1710~1785/1920~1980/2500~2570MHz	763~793/1805~1880/2110~2170/2620~2690MHz
C23A-4B4	824~849/1710~1755/1850~1910/2500~2570MHz	869~894/2110~2155/1930~1990/2620~2690MHz
C23A-4B5	880~915/1710~1785/1920~1980/2500~2570MHz	925~960/1805~1880/2110~2170/2620~2690MHz
C23A-4B6	832~862/1710~1785/1920~1980/2500~2570MHz	791~821/1805~1880/2110~2170/2620~2690MHz

Item	Uplink	Downlink
Gain	≥50 dB	≥50 dB
Ripple in Band	Band 1 ≤ 6 dB / Band 2 ≤ 12 dB / Band 4 ≤6 dB / Band 5 ≤ 8 dB / Band 7 ≤ 8 dB / Band28(B) ≤ 6 dB
Output Power	23 ± 2 dBm	5 ± 2 dBm
Intermodulation Products(CW)	≤ -36 dBc @20dBm	≤ -36 dBm
Spurious Emission	≤ -36 dBm （RBW=30KHz）	≤ -36 dBm （RBW=30KHz）
	≤ -30 dBm （RBW=1MHz）	≤ -30 dBm （RBW=1MHz）
ACRR	≥ 20dB	≥ 20dB
	≥ 20dB	≥ 20dB
EVM	≤ 8 %	≤ 8 %
VSWR	≤ 2.5
Time Delay	≤ 1.5 μs
RUN LED Indication	Green
	Green Flash (slow flashing: 2 times per second)
	Green Flash (Fast flashing: 4 times per second)
	Light OFF
Shut-off Function	Yes
Self-oscillation Cancellation	Yes
Linkage Balance Function	Uplink and downlink ALC linkage
RF Connector	SMA female
Power Supply	DC：+ 12V
Power Consumption	≤ 24W
Operating Humidity	-10℃ ～ +50℃
Dimension	162 * 122 * 34 mm
Weight	≤ 1 Kg

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Wide Band Repeater

C23A-4B Series 4 Bands Signal Repeater

C23A-4B Series 4 Bands Signal Repeater

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