Items

GSM+DCS Dual Band Selective Repeater

Operation bandwidth (Mhz)

Nominal frequency

890-915MHz &1710-1785MHz

935-960MHz &1805-1880MHz

Gain (dB)

Nominal output power -5dB

50±3

Number of determine

GSM

Broad band

DCS

Wide band

Output power (dBm)

GSM modulating signal

-5±1

33 ; 37 ; 40 ; 43 ; ±1

DCS modulating signal

-5±1

33 ; 37 ; 40 ; ±1

ALC (dBm)

Input signal increase 20dB

Po ≤ ±1

Noise figure (dB)

Work frequency band

≤5

Base station coupling Priorto does not make the request

Ripple in band (dB)

GSM (Summit effective work within the bandwidth)

≤3

≤3

DCS (work effectively within the bandwidth)

≤4

≤4

Frequency error (ppm)

GSM Nomial output power

≤0.05

DCS Nominal output power

≤0.05

GSM/DCS

Transmission time delay (µs)

Work frequency band

≤5

Peak phase error (º)

Work frequency band

≤20

RMS phase error (º)

Work frequency band

≤5

Gain adjusting range (dB)

Nominal output power -5dB

≥30

≥30

Gain adjustment linear (dB)

10dB

Nominal output power -5dB

±1

±1

20dB

Nominal output power -5dB

±1

±1

30dB

Nominal output power -5dB

±1.5

±1.5

Intermodulation attenuation (dBc)

Work frequency band

≤50

≤-45

≤-36

Band carrier suppresstion

≥60

≥60

Network capacity

Support for 8-chain network and star network, and 4-port hybrid network approach

The maximum draw distance should be greater than 20km

Each remote devices to meet EVM≤6% RMS; DCS

RF input dynamic range

The input signal dynamic range ≥40dB; EVM deterioration is not more than 6% .DCS

Time delay

Single delay: Digital fiber optic repeater ≤18µs

System time delay: Digital optical fiber relay pull far system ≤25µs (one carry six)

Spurious emissions

9-150Khz (peak value)

-36dBm/1Khz

-36dBm/1Khz

150Khz-30Mhz (peak

value)

-36dBm/10Khz

-36dBm/10Khz

30Mhz-1Ghz (peak value)

-36dBm/100Khz

-36dBm/100Khz

VSWR

BS port

1.5

MS port

1.5