S20T-B1B3B8

ZTT Triple Band Low Power Digital Repeater, coverage B1, B3, B8

Triple Band Low Power Digital Repeater boosting indoor signal coverage with reliable performance. Its robust, low-profile design ensures easy installation in offices, retail, and public venues, enhancing voice and data transmission.

Items			Up link	Down link
Frequency Range		Band 1	1920 ~ 1990 MHz	2110 ~ 2170 MHz
		Band 3	1710 ~ 1785 MHz	1805 ~ 1880 MHz
		Band 8	880 ~ 915 MHz	925 ~ 960 MHz
Number of Sub-band		Band 1	4 sub-band per band	4 sub-band per band
		Band 3	4 sub-band per band	4 sub-band per band
		Band 8	4 sub-band per band	4 sub-band per band
Bandwidth of Sub-band		Band 1	0.2 ~ 30 MHz step of 200 kHz adjustable per sub-band
		Band 3	0.2 ~ 30 MHz step of 200 kHz adjustable per sub-band
		Band 8	0.2 ~ 30 MHz step of 200 kHz adjustable per sub-band
Ripple of Sub-band			Typical ≤4 dB @ BW_Config	Typical ≤4 dB @ BW_Config
Output Power			17±2 dBm	20±2 dBm
Gain			80±3 dB	83±3 dB
Gain Attenuate Range			1~31dB, step of 1dB	1~31dB, step of 1dB
ALC control Range			≥25 dB	≥25 dB
VSWR			≤2	≤2
Max. Input Power Without Damage			-10 dBm	-10 dBm
Spurious Emission	9KHz~1GHz		≤-36 dBm	≤-36 dBm
	1GHz~12.75GHz		≤-30 dBm	≤-30 dBm
ACLR	BW_channel		≥35 dB	≥38 dB
	2×BW_channel		≥45 dB	≥45 dB
Out of Band Rejection			±0.2MHz≥ 20dBc & ±1MHz≥ 45dBc
EVM			≤8% @ 64 QAM
Noise Figure @ max. gain			≤8 dB
Time Delay			≤5 μs
Automatic Detection of Interference			Automatically detect isolation during startup
Interference Cancellation feature			Automatically attenuate gain or turn off during self excitation
LED & OLED indicators			1.Power status, 2.Fault status, 3. Interference, 4. Alarms
Monitoring Type	Local		Connect OMT software via USB
	Remote		Connect NMS Via 3G/4G modem,TCP protocols
NMS Control & Monitoring			Working Frequency & Bandwidth, Gain, PA switch, Sub-band Switch, Output Power, Alarm Enable, Alarm Level Limit, Device Location(GPS or manual setup), Factory settings, Device Information ( Device type, model, SN number, Software version, NMS Sever IP & port, Modem ICCID & SIM card)
NMS Alarms			AC Power, Over Output Power, Input Low Power , Over Temperature, Position, Interference
Backup Battery			≥ 30 minutes for remote monitoring
Power Supply			DC 27V
Power Consumption			<100 W

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S20T-B1B3B8

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