Apply to digital trunking communication system (TETRA, GOTA, IDEN) signal coverage extension.
1.One Donor Unit can link 4 Remote Units at most
2.Adopting Wavelength Division Multiplexing technology to realize long distance transmission via a fiber
3.Adopting filter with highly selectivity and low insertion loss eliminates interference between uplink and downlink
4.Details repeater parameters and status monitor, such as RSSI, temperature, output power level, gain, ATT, return loss, VSWR etc.
5.Configure RS-232 ports to links to laptop for local test.
6.Monitor the Remote Unit via Donor Unit.
7.Can choose SMS, GPRS or TCP/IP for remote monitoring.
Item Technology Indexes Remark
Working frequency (MHz) 806-821 851-866 Select according to the need
Output power (dBm) 0-5 27-46 Select according to the need
Gain (dB): while optical path loss 10dB 40-70 40-70 Select according to the need
Ripple in the band (dB) <=3
Control point stability(ALC) While downlink at the maximum power point, input to add 10dB, The output power changes should be kept within 2dB.
ATT Gain adjustment range (dB) >=30 step 1dB
Noise factor (dB) <=4
Frequency tolerance (ppm) <=0.05
Phase peak error (°) <=20
RMS Phase error (°) <=5
Intermodulation Reduction (dBc) Within Working Bandwidth <=-15dBm/ 30KHz
Out of Working Bandwidth(departure beyond 2.5MHz) <=-36dBm/ 30KHz
Stray Emission (dBm) Within Band <=-36dBm/ 30KHz
input/output Joints Type and Impedance N type(Negative)
Optical port output optical power >=0dBm
Maximum faultless working time MTBF (H) >=50000 hour
Operational environment Operational temperature:-25°C~+60°C;storage temperature: -35°C~+85°C;Relative Humidity:<=95%
Power requirement Nominal Value: 220V/50Hz