ZD 900 / 1800 / 2100MHz - 30dBm Tri-Band Digital Analog repeater

Repeater is an infrastructure equipment used in mobile communication networks. It usually consist of components such as antennas, transceivers, power amplifiers, filters and control units. It expands communication coverage and improves signal quality by amplifying and forwarding wireless signals. The function of the repeater is to receive wireless signals from mobile devices and convert them into wired signals for transmission to mobile communication base stations.

At the same time, it can also receive signals from base stations and convert them into wireless signals to send to mobile devices. In this way, the repeater acts as a bridge between mobile devices and base stations. The 900/1800/2100MHz repeater supports multi-band signal forwarding and amplification. The 900MHz band is used for 2G (GSM) communications, the 1800MHz band is used for 2G (GSM) and 4G (LTE) communications, and the 2100MHz band is used for 3G (UMTS) communications. Therefore, this repeater can support a variety of communication services in different frequency bands at the same time to adapt to the needs of mobile communication networks with different technologies.

Product Description

Company Profile

Specification

Item	Specifications
	DL	UL
Frequency Range(MHz)	939.7-949.7	894.7-904.7
	1830.3-1849.7	1735.3-1754.7
	2110-2130	1920-1940
Max. Total Output Power(dBm)	30±2	30±2
Automatic level control range (ALC)	When the input signal level is increased by less than 10dB (including 10dB), the output power should be kept within ±2dB of the maximum output power.
	When the input signal level is increased by more than 10dB, the output power should be kept within ±2dB of the maximum output power or the output should be turned off.
Maximum allowable input leve (dBm)	- 10
Gain(dB)	80±3	75±3
Gain adjustable range (dB)	≥42
Gain adjustment step size (dB)	1
Gain Adjustable Error(dB)	0- 10： ≤\|±1.0\|
	10-20： ≤\|±1.0\|
	≥21： ≤\|±1.5\|
Frequency error(ppm)	≤0.05
Ripple In Band(dB)	≤5
VSWR	≤1.8
Noise Figure (dB)	≤5
Time Delay(us)	≤1