Detailed Product Description
Dual Band GSM900 & DCS1800 Outdoor
Mobile Repeater
Model: KR-4090GD
Introductions:
The GSM&DCS
Dual-Band RF Repeater is designed to provide a more cost-effective solution
than adding a new Base Transceiver Station (BTS) to improve signal coverage and
communication quality in GSM900&DCS1800 system. And its easy installation
and maintenance can help carrier get fast return.
The
repeater is working as a relay between the BTS and mobiles. It receives the
low-power signal from BTS via the Donor Antenna, linearly amplifies the signal
and then retransmits it via the Coverage Antenna to the weak/blind coverage
area. And the mobile signal is also amplified and retransmitted to the BTS via
the opposite direction.
Features:
Band-Selective RF Repeater: to amplify all signals in the whole band
(bandwidth is customized);
Aluminum-alloy casing with IP65 protection has high resistance to dust,
water and corroding;
Highly selective channel selector can process 12 channels
simultaneously;
No
interference to BTS by adopting linear amplifier with high gain and low noise;
Adopting
filter with highly selectivity and low insertion loss eliminates interference
between uplink and downlink;
RS-232
port provides a link to a notebook for local supervision or to the built-in
wireless modem to communicate with the NMS (Network Management System) that can
remotely supervise repeater’s working status and download operational
parameters to the repeater.
Applications:
To expand signal
coverage or fill signal blind area where GSM 900 and GSM1800 signal is weak or
unavailable.
Outdoor: Airports, tourism regions, golf courses,
tunnels, factories, mining districts, villages, etc;
Indoor: Hotels,
exhibition centers, basements, shopping malls, offices, parking lots, etc.
Specifications:
Items
|
Specifications
|
Frequency
|
Uplink
|
Downlink
|
890~915&1710~1785MHz
(Customized)
|
935~960&1805~1880MHz
(Customized)
|
Output
power
|
40dBm
|
Gain
|
≥ 90dB
|
ALC/AGC
|
Supported
|
Gain
control range
|
30
dB/1 dB step
|
Ripple
in band
|
≤
3.0dB
|
Noise
figure
|
≤
5.0dB
|
VSWR
|
≤
1.5:1
|
Transmission
delay
|
≤
5μS
|
Out band
rejection
|
F(edge)±400KHz≥20dBc
F(edge)±600KHz≥30dBc
F(edge)±1MHz≥40dBc
F(edge)±5MHz≥50dBc
|
Spurious
emission
|
≤-36dBm/9KHz-1GHz
≤
-30dBm/1GHz-12.75GHz
|
Inter-modulation
|
≤
-37dBc
|
Max.
non-destructive input power
|
-10dBm
|
Impedance
|
50 W
|
Operating
temperature range
|
-25
ºC to +55 ºC
|
Relative
humidity
|
0
~ 95%
|
Applications
|
IP65
|
Monitoring
and control
|
RS232
(local)
GSM
wireless modem (remote)
|
Dimensions
|
690mm* 420mm*260mm
|
Weight
|
≤45 kg
|
Power supply
|
AC220V ±20%, 50Hz ±10%
|
Power consumption rating
|
≤300W
|
RF Connectors type
|
N female
|
Mounting
|
Wall or pole
|
|