Redutelco PODRP27CT User manual
-- Wide Dual Band Repeater (Model: PODRP27CT)
http:www.redutelco.com © 2009 Redutelco | All rights reserved 1
User Manual
User Manual
LTE 4G 850/2600
Wide Dual Band Repeater
REDUTELCO TECHNOLOGY CO.,LTD.
2015 January
Information in this manual is subject to change without notice
-- Wide Dual Band Repeater (Model: PODRP27CT)
http:www.redutelco.com © 2009 Redutelco | All rights reserved 2
User Manual
Table of Contents
1 Description....................................................................................................................3
2 TechnicalSpecifications...............................................................................................4
3 SystemDiagram............................................................................................................5
4 ProductFeatures...........................................................................................................6
5 ApplicationsExample...................................................................................................6
5.1 MinimumSignalLevels.....................................................................................6
5.2 CustomApplications..........................................................................................7
5.3 IsolationandSeparation...................................................................................8
6 ProductionOperation...................................................................................................8
6.1 Notices................................................................................................................8
6.2 Installation.........................................................................................................9
6.3 Commissioning..................................................................................................9
6.4 DIPSWITCHES...................................................................................................11
-- Wide Dual Band Repeater (Model: PODRP27CT)
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User Manual
1 Description
The dual band selective repeater is a bi-directional amplifier used to
enhance signals between a mobile and a base station. This repeater type is
used for digital telecommunication system:
1) -It picks up the strongest signal from BTS via the Donor Antenna,
2) -Linearly amplifies the signal and then retransmits it via the Indoor
Signal Distribution System to the weak/blind coverage area.
3) -And the mobile signal is also amplified and retransmitted to the BTS
via the opposite direction.
It is commonly used in the area there are two type of mobile network,. It will
reduce site deployment cost by using one dual band donor antenna, one dual
band service antenna, and dual band repeaters in one enclosure.
It is applied to small, medium-size areas such as corporation office, shop mall,
bus station, factory etc.
This model booster is commonly used in situations where large numbers of
frequency carriers are to be repeated or when base station synthesized
frequency hopping is used.
This model booster does not separate out specific carriers but amplify and
retransmit all signals within a defined frequency band. Inter-modulation
distortion caused by band selective repeaters usually means that lower output
power per carrier can be realized compared to channel selective repeaters.
-- Wide Dual Band Repeater (Model: PODRP27CT)
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User Manual
2 Technical Specifications
Band A Band B
Frequency 824-849MHz
2600-2570 MHz
869-894MHZ
2620-2690 MHz
Gain Uplink 70±2dB 70±2dB
Downlink 75±2dB 75±2dB
Output Power Uplink 23±2dBm 27±2dBm
Downlink 23±2dBm 27±2dBm
Gain Adjust Scope MGC≥30
Gain Adjust Step 1dB
Gain Adjust precision 0
～
10dB/±1dB#10
～
20dB/±1.5dB#20
～
31dB/±2dB
Band Ripple ±4
ALC Scope 20dB
Frequency Error ≤±0.05
I/O Impedance 50Ω/N connector
VSWR ≤1.5
Noise figure ≤8
Spurious Emission ≤-36dBm@9KHz
～
1GHz/≤-30dBm@1
～
12.75GHz
IM3 -40dBc
Delay ≤0.5μs
Max Input Power Level(1minute) -10dBm
RF Connector N-Type (Female)
Temperature Range Operation: -25°C ~ + 55°C;Storage: -30°C ~ +60°C
Relative humidity 5~95% RH
Power consumption 50W
Power Supply AC220V
Power Supply AC220/110V±10% 60Hz
Dimensions 340×220×100mm
Weight 4.5kg
Shipment Dimensions 460×280×150mm
Shipment Weight 5.5kg
Indicator
Power Run - Green Light on
RF Output Power GRAY @ output power<17
GREEN @ working
RED @output power >full output power
-- Wide Dual Band Repeater (Model: PODRP27CT)
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User Manual
3 System Diagram
The RF link (donor) towards the base station is typically fed from an
outdoor antenna while the coverage area is fed by an indoor antenna
The signal from the base station is received via the Dual band Donor
antenna, then forwarded through a Quad filter (QPX), is amplified in a
low noise amplifier (LNA), and enters the band selective amplifier
board (BSA).
The first mixer stage on the BSA amplifier board, which is controlled by
a synthesizer, converts the received frequency down to the IF
frequency. The signal is then filtered by an SAW band-pass filter and
amplified before it is fed to the second mixer stage, controlled by the
same synthesizer as the previous one, for converting back to the
original frequency.
The output signal from the mixer is then amplified in the power
amplifier, which is controlled by the CU(Control Unit board).The output
signal passes a Quad filter (QPX), before it is fed to the Dual band
MS antenna which retransmits the signal at the same frequency to the
aim areas.
-- Wide Dual Band Repeater (Model: PODRP27CT)
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User Manual
4 Product Features
High gain>70dB, High output power 23dBm
Light weight, small dimensions, easy to install
Easy set DL/UL gain via local PIN switch manually, Gain adjustment of
uplink and downlink; gain adjust step is 1dB and the adjust scope is
30dB.
Smart Automatic Level Control (ALC) to reduce interference to BTS
Linear power amplification to effectively suppress inter-modulation
and spurious emission
An alarm interface with unique color LEDs to indicate power supply
and signal level of uplink and downlink
Simple installation with external AC/DC adapter
Dual ports and full duplex design
5 Applications Example
5.1 Minimum Signal Levels
It requires a minimum signal level in the place where install the donor antenna.
Failure to provide sufficient input signal will only result in a poor coverage
inside the building for this repeater system.
To check signal levels, use the phones in the place where antenna be install
(on the roof) and observe the signal bars on the phone. The Donor (outside)
antenna should be placed in the location where you get the most signal.
-- Wide Dual Band Repeater (Model: PODRP27CT)
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User Manual
Notices:
1) The donor antenna should have line of sight (LOS) with the BTS antenna.
If the signal strength is adequate, LOS may in some cases not be
necessary.
2) Donor antenna gains are typically 9 to 14 dB, and have a horizontal and
vertical beam width of less than 30° to correctly select the donor BTS.
5.2 Custom Applications
If building is made of concrete, steel, steel roof, copper roof, brick, aluminum
siding, concrete roofing tiles, metal roofing tiles or any other signal stopping
material, a repeater is usually the ideal solution for your situation.
Most homes or buildings are easily covered by one repeater systems. Some
buildings are larger or have multiple areas inside that need coverage.
It may need longer cables, more than 2 coverage antennas or other items in
order to fully cover your building. We can make (almost) any cable length and
can help design a system that fits your application.
-- Wide Dual Band Repeater (Model: PODRP27CT)
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User Manual
5.3 Isolation and Separation
Isolation refers to the proper distance or separation needed to keep the Donor
antenna signal pattern and the Coverage antenna signal pattern away from
each other.
Isolation becomes particularly problematic when Omni-directional antennas
are used for both the Donor and the Coverage antennas. Since these
antennas transmit in a circle (or more accurately a sphere) it is very easy for
these spheres to overlap and thus negate the repeater system.
6 Production Operation
6.1 Notices
Follow below safety items carefully before installation, implementation,
maintenance and operation for this product
)BS and MS port must be connected to donor antenna and service antenna
when powers supply on; otherwise the equipment will be damage for long
term use.
)When use repeater for outdoor, the distance between donor antenna and
service antenna must be >20metes, otherwise the repeater will be damage
because isolation problem for long term use.
)Donor antenna need to be lighting proof and lighting rod need to be install
for donor antenna installation pole outside
)Check input power, require input power less than maximum input power of
repeater, otherwise the repeater cannot work well.
)Keep clear for label and indicator on surface of repeater to be identified.
-- Wide Dual Band Repeater (Model: PODRP27CT)
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User Manual
6.2 Installation
Step 1: Start by taking phone up to the roof or other location outside to find
where the signal is strongest.
Step 2: Temporarily mount the Donor (outside) antenna in that location. It
may need to adjust and move the antenna later.
Step 3: Run coaxial cable into the building to a convenient location where
you can also get standard 220VAC power for the repeater.
Step 4: Place the repeater in that location and connect the coaxial cable to
the Donor Side of the repeater and the donor antenna.
Step 5: Mount coverage (inside) antenna in a productive location. It may
need to adjust or move the antenna later.
Step 6: Connect coaxial cable between the coverage antenna and the
repeater output port.
Step 7: Power up the system and check for signal inside the building. If
needed, tune system by moving and or pointing the Donor and Coverage
antennas until get the most signal possible.
Step 8: Secure all antennas and cables, securely mount the repeater and
clean up the installation.
6.3 Commissioning
Item Description Usage
BTS Connect to Donor antenna Receive BTS signal source
MS Connect to Service antenna Retransmitted signal to target coverage area
-- Wide Dual Band Repeater (Model: PODRP27CT)
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User Manual
Band A Left of BTS Side : 850M Set repeater Uplink attenuation(Low Band)
BAND B Right of BTS Side: 2600M Set repeater Uplink attenuation(High Band)
DC Power Supply indicator LEN ON when DC on(9V~12V)
DL ATT Band A/B downlink attenuation Set Downlink attenuation when DL LED @RED light for
each band
UL ATT Band A/B uplink attenuation Set Uplink attenuation when UL LED @RED light for each
band
DL LED Downlink output indicator Gray output<20dBm ( lower input signal)
Green output >20dBm and output <23Bm
RED output >20dBm (in this case , must set
attenuation )
UL LED Uplink output indicator Gray output<15dBm ( lower input signal)
Green output >15dBm and output <23dBm
RED output >17dBm (in this case , must set
attenuation )
After switch on power supply, please check indication LED as following items.
- You can switch attenuation value by using repeater side switch, If you want
to set attenuation 18, you push switch16 and switch 2 on.
- Make sure the repeater full output power LED (Downlink output power) is
on when finishes commissioning. (For each band : Set DL PIN switches ON until No
RED light (only GREEN) )
- And set UL ATT> DL ATT+5dB to balance the downlink and uplink and
limited the interference to BTS in uplink direction.
- You can change donor antenna direction or installation position to get
bigger signal;
- You can set attenuation to add or reduce repeater gain; or you can check
cable and connector link status to reduce cable loss and insert loss
between repeater and antenna.
- For 850/1900 dual band repeater, the donor antenna direction must be
adjustment angle by angle, so the dual band input power require good
signal at the same time , then 850 and 1900 can work with maximum
coverage area and distance.
-- Wide Dual Band Repeater (Model: PODRP27CT)
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User Manual
6.4 DIP SWITCHES
There are downlink (BTS site to )DIP Switches (Hi ATT) and uplink DIP
Switches (Lo ATT) for single band.
zON- means Attenuation
zOFF- means no attenuation.
zHi ATT are used when BTS signal is acquired is too strong via donor
antenna (external antenna), which usual are set to lower gain (higher
attenuation), and protect repeater to work at good signal situation (NOT
Over-power state).This simply setting way is:
Set ALL DIP switch off.
Check signal bar of mobile phone in edge of coverage area.
Set Attenuation as following table until cell phone make calling is well.
-- Wide Dual Band Repeater (Model: PODRP27CT)
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User Manual
No. PIN1 PIN2 PIN3 PIN4 PIN15 Att Value
1 ON ON ON ON ON 31
2 off ON ON ON ON 30
3 ON off ON ON ON 29
4 off off ON ON ON 28
5 ON ON off ON ON 27
6 off ON off ON ON 26
7 ON off off ON ON 25
8 off off off ON ON 24
9 ON ON ON off ON 23
10 off ON ON off ON 22
11 ON off ON off ON 21
12 off off ON off ON 20
13 ON ON off off ON 19
14 off ON off off ON 18
15 ON off off off ON 17
16 off off off off ON 16
17 ON ON ON ON off 15
18 off ON ON ON off 14
19 ON off ON ON off 13
20 off off ON ON off 12
21 ON ON off ON off 11
22 off ON off ON off 10
23 ON off off ON off 9
24 off off off ON off 8
25 ON ON ON off off 7
26 off ON ON off off 6
27 ON off ON off off 5
28 off off ON off off 4
29 ON ON off off off 3
30 off ON off off off 2
31 ON off off off off 1
32 off off off off off 0
zLo ATT are used to control interference to BTS network. It is usually set UL
ATT= DL ATT+5dB to balance the downlink and uplink.
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