Helios® RF Repeaters system is designed to solve problems of weak mobile signal, which is much cheaper than adding a new Base Station (BTS). Main operation of RF Repeaters system is to receive low-power signal from BTS via radio frequency (RF) transmission and then transmit the amplified signal to the areas where network coverage is inadequate. And the mobile signal is also amplified and transmitted to the BTS via the opposite direction.

According to your requirement for working frequency, you can choose either type of Helios® RF Repeaters:
1. Band Selective RF Repeaters System: To amplify all signals in the whole band (Various bandwidth is available upon request)
2. Wireless Channelized RF Repeaters System: To amplify only the signals transmitted by the customized 1 or 2 or 4 or 6 or 8 channel (A narrow band with customized central frequency)

Features
1. Aluminum-alloy casing with IP65 protection and compact design, cool system without fan.
2. In-built AGC & ALC function be able to ensure easy installation without setting.
3. Unique max AGC60dB firmware to ensure stable operating on moving platforms such as ship or trains.
4. Compact size and light weight, easy to install on wall or pole.
5. High working gain as Min. 90dB.
6. Output power +30dBm - +43dBm for large coverage application.
7. Adopting filter with highly selectivity and low insertion loss eliminates interference between uplink and downlink.
8.2 RS232 or RJ45 ports provide links to laptop for local setting and monitoring by built-in web interface.
9. Built-in wireless modem (Option) for remote monitoring by SMS, GPRS or TCP/IP.
10. Details repeater parameters and status can be monitoring by built-in web interface, such as RSSI, temperature, output power level, gain, ATT, return loss, VSWR etc.
11. Support upgrading firmware remotely by GPRS.
12. High gain linear power amplifier technique with reliable performance.

Technical Specifications
Frequency Range (Customized):
Uplink: 824-849MHz/ 1920-1980MHz
Downlink: 869-894MHz / 2110-2170MHz
Output Power:
Uplink: Min +23dBm - +33dBm Downlink: Min. +30dBm - +43dBm
Configurable Channels: 1, 2, 4, 6, 8 for option
Working Bandwidth: Various bandwidth is available upon request
Gain: Min. 90dB
AGC Control Range: Min 40dB (+/-2dB)
Gain Control Range: 31dB (1dB Step)
VSWR: < 1.5

Ripple in Band: Max +/- 1.5dB
In-band Inter Modulation Attenuation: Comply to ETSI Requirement
RF Connector: N-type Female
I/O Impedance: 50 ohm
Noise Figure: Max 5dB
Group Time Delay: Max 5µ S
Temperature Range: -25 degree Celsius to +55 degree Celsius
Relative Humidity: Max 95%
MTBF: Min. 100000 hrs
Power Supply: DC -48V / AC220V (+/-15%), 50Hz
UPS Backup Power Supply (Optional): 6 hours / 8 hours
Power Consumption: Max 200W
NMS Monitor Function: Real-time alarm for Door Status, Temperature, Power

Supply, VSWR, Output Power, Gain, Uplink ATT, Downlink ATT and etc.
Remote Control Module (Optional): RS232 or RJ45 + Wireless Modem + Chargeable Li-ion Battery
Approvals and Tests: EN 60950 & ETSI 301 489-1 & ETSI 300 980-11
Dimension:
+40-+43dBm: 605mm x 445mm x 225mm
+37dBm: 460mm x 405mm x 180mm
+30-+33dBm: 460mm x 350mm x 170mm
Weight:
+40-+43dBm: 34Kgs
+37dBm: 20kgs
+30-+33dBm: 15kgs