Manual Rf Repeater
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Transcript of Manual Rf Repeater
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IRF-800
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1. OverviewThe IRF-800 (High Power RF Repeater), a system for solving the areas where
wireless phone calls are impossible, is a RF-type repeater that is designed to
cover radio shaded area such as wide-open areas and large underground
shopping centers.
2. Block Diagram
Donor Ant. Coverage / ServiceAnt.
ARR DUP
LNA IF-Module
IF-Module
HPA
DUP ARR
LNAHPA
Forward Path
Reverse Path
Basically, the Forward Path and Reverse Path are configured with same blocks as
you can see above block diagram.
For Forward Path, the input RF signal received from donor antenna passes through
ARR (Arrestor) and DPX (Duplexer), reaches to the LNA (Low Noise Amplifier)
where the signal is amplified with low noise figure.
The output signal from LNA is sent to the IF-Module that amplifies and attenuates
signal to get proper drive output power and also provides sharp other band
rejection with SAW (Surface Acoustic Wave) filter.
After IF-Module, signal goes to the HPA (High Power Amplifier), which is to provide
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2.1 Forward Path Donor Antenna Port
Forward path signal is comes from antenna via Donor Antenna.
Donor Lightning Arrestor
Arrestor is used for lightning protection of repeater. Loss of arrestor
is about 0.2dB below.
Donor Duplexer
Loss of this module is about 0.8dB. This can combine Tx (Forward)
and Rx (Reverse) signal for one antenna use. Also, Isolation between
two signals is about 110dB above.
TX-LNA
Received signal is amplified 40dB with low noise at this module. So,
output signal level will be 11dBm in case of 51dBm input level.
(P1dB=+21dBm, IP3=+36dBm, NF=1dB)
TX_IF-Module
Max Gain Setting is 12dB. If output power level of LNA is 11dBm,
Gain should be set to 7dB (Total Gain of Repeater=90dB). So, output
will be -4dBm. Also, if the output power of LNA module is 61dBm,
then, the output power of Tx_IF-module will be 49dBm, Gain=12dB
(Total Gain of Repeater=95dB).
16Watt HPA Module
The gain of HPA is 45dB. Actually, 16Watt (+42dBm) HPA will be
used for 10Watt (+40dBm) output at service output port of repeater
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is about 0.2dB below.
Service Antenna Port & Monitoring Port
Max Output RF power of repeater at service antenna port is 10Watt.
Also, 30dB Monitoring port is equipped for Tx signal monitoring.
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2.2 Reverse Path Service Antenna Port
Reverse path signal is comes from antenna via Service Antenna.
Service Lightning Arrestor
Arrestor is used for lightning protection of repeater. Loss of arrestor
is about 0.2dB below.
Service Duplexer
Loss of this module is about 0.8dB. This can combine Tx (Forward)
and Rx (Reverse) signal for one antenna use. Also, Isolation between
two signals is about 100dB above. RX-LNA
Received signal is amplified 40dB with low noise at this module. So,
output signal level will be 11dBm in case of 51dBm input level.
(P1dB=+21dBm, IP3=+36dBm, NF=1dB)
RX_IF-Module
Max Gain Setting is 12dB. If output power level of LNA is 11dBm,
Gain should be set to 4dB (Total Gain of Repeater=87dB). So, output
will be -7dBm. Also, if the output power of LNA module is 71dBm,
then, the output power of Rx _IF-module will be 59dBm, Gain=12dB
(Total Gain of Repeater=95dB).
8Watt HPA Module
The gain of HPA is 45dB. Actually, 8Watt (+38dBm) HPA will be
d f 5W tt (+37dB ) t t t i t t t f t
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Arrestor is used for lightning protection of repeater. Loss of arrestor
is about 0.2dB below.
Donor Antenna Port & Monitoring Port
Max Output RF power of repeater at donor antenna port is 5Watt.
Also, 30dB Monitoring port is equipped for Rx signal monitoring.
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3. Features- Low cost base station alternative
- High Level Output power
- Automatic Output power limitation & Shutdown function
- Remote monitor and controlling through NMS
- Local monitor and controlling using Note-Book PC
- Much Lower power consumption compare to small base station
- Simplified commissioning and the low weight allow easy installation
- Easy Maintenance due to module-type design
- AC power Alarm function
- Weatherproof enclosure
- Thermally stable Using Heat exchanger or FAN
4. Usages
- Installation Site: wide open area, tunnel, etc.
- Radio wave shadowed areas
- Roads and/or Highways neighborhood
- In building or basement areas
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5. Specifications- Electrical Spec.
ITEM. SPECIFICATION
Frequency range FWD: 870 ~ 875MHz / RVS: 825 ~ 830MHz
Gain 65 ~ 95dB
Fwd: 20W (+43dBm)
Max Output Power Rvs: 5W (+37dBm)
f750KHz: -45dBc30KHzIn-Band Spurious
f1.98MHz: -60Bc30KHzOut Band Spurious -13dBm/100Khz Below
Gain Control Range 30dBGain Control Step 2dB
85~95dB: 1dB75~85dB: 1dBGain Setting Error65~75dB:1.5dB
In-Band Flatness 3dB (BW:3.75Mhz)ALC & Shutdown 2dB
Delay 5usecFrequency Stability 5x108Hz
InputVSWR 1.5
Output
Noise Figure 5dBFwd 0.95Waveform qualityRvs 0.96
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6. NMS Users Guide6.1. Log-in
When you execute Rbmanager.exe you can see this window.
User ID : administrator
Password : admin
6.2. Main window
You can add, modify and delete groups in this menu.
You can add, modify and delete nodes in this menu.
You can see the past history about each nodes(repeaters).
You can change your system setup in this menu.
Main window of RBmanager.
Group
Node
History
Configuration
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6.3. Sub menu of RBmanager
6.3.1 Group
Group has 3 sub menus.
6.3.1.1 Add new Group
* caution : You can add new group only numbers.
6.3.1.2 Modify Group
When modify your groups you can change
numbers into characters.
Group Add new Group
Modify Group
Delete Group
When you need a new group you can add a new group
Click Add New Group button
You can only use numbers
After add a new group you can modify your new group
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delete group menu.
6.3.2 Node
Node has 3 sub menus
6.3.2.1 Add new node
When you add a new node you can fill
more detailed contents than add group.
6.3.2.2 Modify node
First click the node which you want modify.
Then you can see the same sub window
when you see the add now node.
Node Add new node
Modify Node
Delete Node
When you need a new node you can add a new Node
Click Add New Node button
After add a new Node you can modify your new Node
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6.3.3 History
1
History has only one sub menu.
2 3 4
If you click Query then you can see this
sub menu.
6.3.3.1 Date -- Red circle 1 5
You can see the Date from ~~ to ~~
Whenever you want. (Max 3 months) 6
6.3.3.2 History -- In red circle 2
You can see history about OMC and Repeater.
6.3.3.3 Node -- In red circle 3
You can choose the node which one you want to see.
6.3.3.4 History kind - In red circle 4
You can choose detailed history or whole history about Repeaters.
If you want see whole history dont choose anything.
After choosing click the view result button
History Query
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6.3.4 Configuration
Configuration has only one sub menu.
You can setup your system configutration in
this window.
6.3.4.1 Sending Modem
This is the modem from OMC to Repeater .
6.3.4.2 Receiving Modem
This is the modem from Repeater to OMC.
6.3.4.3 Timeout
Your modems timeout delay.
6.3.4.4 Modem Initialization Command
Each modem has its specific initialization command so you must write the
specified
Initialization command.
Configuration Configure
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6.4. Execution window
If you want to view the window of repeater
select the node and click the view node
button.
6.4.1 Device view
Press the Dialing button.
1When the modem link the repeater
Connect button is activated.
Press the activated Connect button.
Then you see the status of the repeater
You can change parameters in circle 1.
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6.4.2 Alarm
When the repeater report alarm
the device view shows detailed alarm
in circle 3 (previous page).
When you want to see more detailed
alarms select the alarm button in
device view window.
Then you can see the more detailed
alarms in this Alarm View window.
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7. Outline Drawing7.1 Front View
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7.2 Side View
( left ) ( Right )
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7.4 Inside View
7
6
5
1
4
3
9
13
14
10 11
12
15
2
8
Power Supply Unit
Control Board Assembly
~ IF Module
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7.5. Photograph
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Outside View
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Inside View
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8. RF Repeater Installation
1) Wall Mount
RF
Repeater
Unit
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2) Pole Mount
Yagi
Antenna
LightningRod
Angle
Battery
Box
RF
Repeater
Unit
Patch
Type
Sector
RF
Cable
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9. Conceptual Diagram
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10. Product Photo
Size : 464 x 735 x 328.5