PBE Europe as Axell Wireless 55-165704 55-165704 Cell Enhancer User Manual 80 330501HBKM

Axell Wireless 55-165704 Cell Enhancer 80 330501HBKM

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23.3.1.1. 800MHz Channelised Amplifier (50-132202) Outline Drawing
Drawing number 50-1322102
POWER ON
ALARM
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 424 of 500
23.3.1.2. 800MHz Channelised Amplifier (50-132202) System Diagram
Drawing number 50-132282
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 425 of 500
23.3.1.3. Dummy load 09-000902
Dual Isolator (850-870MHz) (93-910045) has one of its ports terminated with Dummy load 09-000902
in order to achieve the correct power rating to absorb the reflected power levels that can be
reasonably expected within the system.
09-000902 specification
PARAMETER
Frequency Range
Power Rating
VSWR
Impedance
Temperature Range
RF Connectors
Dimension
Weight
Finish
RF Connector
Environmental
MTBF
SPECIFICATION
0 - 2500 MHz
25 Watts continuous
Better than 1.1:1
50 Ohms
-20 to +60°C
N Type female
110.3mm x 38.1mm x
485 grams
Black Anodised
N Type male
IP66
>180,000 hours
23.3.1.4. Switched Attenuator 0.25W, 0 - 15dB (10-000901)
In many practical applications for Cell Enhancers etc., the gain in each path is found to be excessive.
Therefore, provision is made within the unit for the setting of attenuation in each path, to reduce the
gain.
10-000901 provides attenuation from 0 - 15dB in 2 dB steps The attenuation is simply set using the
four miniature toggle switches on the top of each unit. Each switch is clearly marked with the
attenuation it provides, and the total attenuation in line is the sum of the values switched in. They are
designed to maintain an accurate 50Ω impedance over their operating frequency at both input and
output.
10-000901 Specification
PARAMETER
Attenuation Values
Attenuation Steps
Power Handling
Attenuation Accuracy
Frequency Range
Impedance
Connectors
VSWR
Weigh
Temperature operation
range
storage
SPECIFICATION
0-15dB
1, 2, 4 and 8dB
0.25 Watt
± 1.0 dB
DC to 1GHz
50Ω
SMA
1.3:1
0.2kg
-20°C to +60°C
-40°C to +70°C
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 426 of 500
23.3.1.5. Low Noise Amplifier (11-006702)
The Gallium-Arsenide low noise amplifiers used in 800MHz Line Amplifier (55-165703) are double
stage, solid-state low noise amplifiers. Class A circuitry is used throughout the units to ensure
excellent linearity and extremely low noise over a very wide dynamic range. The active devices are
very moderately rated to provide a long trouble-free working life. There are no adjustments on these
amplifiers, and in the unlikely event of a failure, then the complete amplifier should be replaced. This
amplifier features its own in-built alarm system which gives a volt-free relay contact type alarm that is
easily integrated into the main alarm system.
11-006702 Specification
PARAMETER
Frequency range
Bandwidth
Gain
1dB Compression point
OIP3
Input/Output return loss
Noise figure
Power consumption
Supply voltage
Connectors
Temperature operational
range
storage
Size
Weight
SPECIFICATION
800 – 1000MHz
<200MHz
29dB (typical)
20dBm
33dBm
>18dB
1.3dB (typical)
180mA @ 24V DC
10-24V DC
SMA female
-10°C to +60°C
-20°C to +70°C
90 x 55 x 30.2mm
290gms (approximately)
Low Noise Amplifier (11-006702) ‘D’ Connector Pin-out details
Connector pin
Signal
+Ve input (10-24V)
GND
Alarm RelayO/P bad
Alarm Relay common
Alarm Relay good
No connection
TTL voltage set
TTL alarm/0V (good)
O/C good/0V bad
9-Way Pin-Out Graphical Representation
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 427 of 500
23.3.1.6. Power Amplifier (12-020804)
This amplifier is a Class AB 40W power amplifier from 860MHz to 960MHz in balanced configuration.
The amplifier demonstrates a very good input/output return loss (RL) and it has a built-in Current Fault
Alarm Function.
The unit housing is an aluminium case (Iridite NCP finish) with SMA connectors for the RF
input/output and a D-Type connector for the power supply and the Current Fault Alarm Function.
12-020804 specification
Specification
Frequency Range
Gain
Gain Flatness
∆Gain vs. Temperature
Input RL
Output RL
Output Power @ P1dB
DC Supply Voltage
RF Input Power
DC Supply
At P1dB
Current With no RF input (Iqc)
Temperature
operational
range
storage
Parameter
860 - 960MHz
≥28.0 dB
1.0dB p-p Max
2.5dB Max
15dB Min
15dB Min
46.0dBm Min
24 ± 0.5Vdc
25dBm
6000mA Max
1700mA Max
-40°C to +70°C
-40°C to +100°C
7-Way Connector Pin-outs
Connector Pin
A1
A2
Signal
+24V DC
GND
Alarm relay common
TTL alarm/0V good
Alarm relay contact (bad)
Alarm relay contact (good)
O/C good/0V bad (TTL)
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 428 of 500
23.3.1.7. DC/DC Converter 13-003412
13-003412 is based upon an O.E.M. DC/DC Converter module with a wide input range and and is
used to derive a 12V fixed voltage power supply rail from a higher voltage supply, in this case 24V. In
the event of failure this unit should not be repaired, only replaced.
13-003412 Specification
PARAMETER
Operating voltage
Output voltages
Output current
Temperature operational
range
storage
SPECIFICATION
18 – 75V DC
12V (typical)
5.0A (Max)
-10%C to +60%C
-20%C to +70%C
23.3.1.8. Channel Selectivity Module (17-009127)
Channel Selectivity Module (17-009127) is employed when requirement dictates that very narrow
bandwidths (single operating channels), must be selected from within the operating passband. One
channel selectivity module is required for each channel.
The Channel Selectivity Module is an Up/Down frequency converter that mixes the incoming channel
frequency with a synthesised local oscillator, so that it is down-converted to an Intermediate
Frequency (IF) in the upper HF range. An eight pole crystal filter in the IF amplifier provides the
required selectivity to define the operating passband of the Cell Enhancer to a single PMR channel.
The same local oscillator then converts the selected IF signal back to the channel frequency.
Selectivity is obtained from a fixed bandwidth block filter operating at an intermediate frequency (IF) in
the low VHF range. This filter may be internal to the channel selectivity module (Crystal or SAW filter)
or an externally mounted bandpass filter, (LC or Helical Resonator). Various IF bandwidths can
therefore be accommodated. A synthesized Local Oscillator is employed in conjunction with high
performance frequency mixers, to translate between the signal frequency and IF.
The operating frequency of each channel selectivity module is set by the programming of channel
selectivity module frequencies and is achieved digitally, via hard wired links, banks of DIP switches, or
via an onboard RS232 control module, providing the ability to remotely set channel frequencies.
Automatic Level Control (ALC) is provided within each channel selectivity module such that the output
level is held constant for high level input signals. This feature prevents saturation of the output mixer
and of the associated amplifiers.
Alarms within the module inhibit the channel if the synthesised frequency is not locked. The
synthesiser will not usually go out of lock unless a frequency far out of band is programmed.
The channel selectivity module is extremely complex and, with the exception of channel frequency
programming within the design bandwidth, it cannot be adjusted or repaired without extensive
laboratory facilities and the necessary specialised personnel. If a fault is suspected with any channel
selectivity module it should be tested by substitution and the complete, suspect module should then
be returned to AFL for investigation.
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 429 of 500
23.3.1.9. Channel Control Module (17-011501)
The operating frequency for each channel in each repeater is programmed by 16 DIL (Dual In Line)
switches. The programming switches are mounted in the Channel Control Module. The Channel
Selectivity Modules are connected to the Channel Control Module via multi-way ribbon cables.
Adjacent to the DIL switches for each channel is a toggle switch to turn on and off individual channels
as required. A green LED indicates the power status of each channel.
A red LED shows the alarm condition for each channel. An illuminated alarm LED indicates that the
synthesiser has not achieved phase lock and that the module is disabled. There is a problem which
requires investigation, often a frequency programmed outside the operating frequency range.
The following information is necessary before attempting the programming procedure.
4. operating frequency
5. synthesiser channel spacing (step size)
6. synthesiser offset (IF)
Programming Procedure
Check that the required frequency falls within the operational frequency limits of the Cell Enhancer.
For each channel required, subtract the synthesiser offset from the required operating frequency and
record the resulting local oscillator frequency.
Divide each local oscillator frequency by the channel spacing and check that the result is an integer
(i.e: no remainder).
If the synthesiser division ratio is not an integer value, check the required operational frequency and
repeat the calculation checking for mistakes.
Convert the required local oscillator frequency to synthesiser programming switch state patterns
according to the following table. Note: the frequency of the passband will dictate the switch steps
used.
Switch Number
10
11
12
13
14
15
16
Switch Functions
Synthesiser offset added when switch in UP position
12.5kHz step size
25kHz step size
+12.5kHz
+25kHz
+25kHz
+50kHz
+50kHz
+100kHz
+100kHz
+200kHz
+200kHz
+400kHz
+400kHz
+800kHz
+800kHz
+1.6MHz
+1.6MHz
+3.2MHz
+3.2MHz
+6.4MHz
+6.4MHz
+12.8MHz
+12.8MHz
+25.6MHz
+25.6MHz
+51.2MHz
+51.2MHz
+102.4MHz
+102.4MHz
+204.8MHz
+204.8MHz
+409.6MHz
+409.6MHz
+819.2MHz
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 430 of 500
Programming Example
Frequency required: 454.000MHz
Channel spacing:
12.5kHz
Synthesiser offset:
-21.4MHz
The Local Oscillator frequency is therefore:
454.000 – 21.4 = 432.600MHz
Dividing the Local Oscillator frequency by the channel spacing of 0.0125MHz:
432.600 = 34608
0.0125
This is an integer value, therefore it is OK to proceed.
Local Oscillator
Frequency
432.600 MHz
16
15
Switch setting:
14
13
12
11
Switch settings
10 9
0 = switch DOWN (ON, frequency ignored )
1 = switch UP
(OFF, frequency added )
17-011501 Controller Module DIP Switch Connector Data
IDC PIN
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
17-011501 Controller Module DIP Switch Connector Data
25-way
Function
Function
Connector
(12.5kHz steps)
(25kHz steps)
13
Freq. bit 1 (12.5kHz)
Freq. bit 1 (25kHz)
25
Freq. bit 2 (25kHz)
Freq. bit 2 (50kHz)
12
Freq. bit 3 (50kHz)
Freq. bit 3 (100kHz)
24
Freq. bit 4 (100kHz)
Freq. bit 4 (200kHz)
11
Freq. bit 5 (200kHz)
Freq. bit 5 (400kHz)
23
Freq. bit 6 (400kHz)
Freq. bit 6 (800kHz)
10
Freq. bit 7 (800kHz)
Freq. bit 7 (1.6MHz)
22
Freq. bit 8 (1.6MHz)
Freq. bit 8 (3.2MHz)
Freq. bit 9 (3.2MHz)
Freq. bit 9 (6.4MHz)
21
Freq. bit 10 (6.4MHz)
Freq. bit 10 (12.8MHz)
Freq. bit 11 (12.8MHz)
Freq. bit 11 (25.6MHz)
20
Freq. bit 12 (25.6MHz)
Freq. bit 12 (51.2MHz)
Freq. bit 13 (51.2MHz)
Freq. bit 13 (102.4MHz)
19
Freq. bit 14 (102.4MHz) Freq. bit 14 (204.8MHz)
Freq. bit 15 (204.8MHz) Freq. bit 15 (409.6MHz)
18
Freq. bit 16 (409.6MHz) Freq. bit 16 (819.2MHz)
Module alarm
Module alarm
17
Gain bit 1
Gain bit 1
Gain bit 2
Gain bit 2
16
Gain bit 3
Gain bit 3
Gain bit 4
Gain bit 4
15
(5V
(5V
0V
0V
14
Switched 12V
Switched 12V
0V
0V
-------
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 431 of 500
23.3.1.10. 24V Relay Board (80-008902)
The General Purpose Relay Board allows the inversion of signals and the isolation of circuits. It is
equipped with a single, dual pole, change-over relay RL1 with completely isolated wiring, accessed
via screw terminals.
The relay is provided with a polarity protection diode and diodes for suppressing the transients
caused by "flywheel effect" which can destroy switching transistors or induce spikes on neighbouring
circuits. It’s common use is to amalgamate all the alarm signals into one, volts-free relay contact pair
for the main alarm system.
80-008902 Technical Specification
Parameter
Max. switch current
Max. switch volts
Max. switch power
Min. switch load
Relay isolation
Mechanical life
Relay approval
Connector details
Temperature
operational
range
storage
Specification
1.0Amp
120Vdc/60VA
24W/60VA
10.0µA/10.0mV
1.5kV
>2x107 operations
BT type 56
15-way 0.1" pitch
-10°C to +55°C
-40°C to +70°C
23.3.1.11 Dual Isolator (850-870MHz) (93-910045)
The purpose of fitting an isolator to the output of a transmitter in a multi-transmitter environment is so
that each output is afforded a degree of isolation from every other. Without the addition of Isolators,
simultaneous transmissions could interfere to create intermodulation products and spurious
transmissions would be created which would cause interference.
Dual Isolator (93-910045) is a ferro-magnetic RF device, which has directional properties. In the
forward direction, RF arriving at the input is passed to the output with minimal attenuation. In the
reverse direction, RF arriving at the output due to reflected power from a badly matched load, or due
to coupling with another transmitter, is routed into an RF load where it is absorbed. The isolator
therefore functions to prevent reflected RF energy reaching the output port of an amplifier where it
could cause intermodulation products or premature device failure.
Dual Isolator (93-910045) is as its name suggests a two stage device, essentially two isolators in one
casing. One isolator stage has an internal 10W load fitted, the second stage needs an external load
fitted of sufficient rating to absorb the reflected power levels that can be reasonably expected within
the system. In this instance Dual Isolator (93-910045) is fitted with external load 09-000902.
93-910045 Specification
Parameter
Frequency Range
Insertion Loss
Isolation
Return Loss
Power Handling
RF Connectors
Specification
850-870MHz
0.4 dB max.
50 dB min.
23 dB min.
10W (internally fitted load)
N female
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 432 of 500
23.3.1.12 Dual Diode Assembly (94-100004)
The purpose of these dual diode assemblies is to allow two DC voltage sources to be combined, so
that the main DC rail within the equipment can be sourced from either a mains driven PSU, or
externally through an XLR connector or from dual mains driven PSUs . They are very heavy-duty
diodes and they prevent any reverse current from flowing back to their source or the alternative
supply rail. Combining diodes such as these will also be used if the equipment is to be powered from
external back-up batteries.
23.3.1.13 PSU 24V (96-300060)
The power supply unit is a switched-mode type capable of supplying 24V DC at 6.25Amps
continuously. Equipment of this type typically requires approximately 2-2.5Amps at 24V DC, so the
PSU will be used conservatively ensuring a long operational lifetime.
No routine maintenance of the PSU is required. If a fault is suspected, then the output voltage from
the power supply may be measured on its output terminals. This is typically set to 24.5V. The output
voltage may be varied using a multi-turn adjustment potentiometer mounted close to the DC output
terminals.
The line input voltage is sensed automatically, so no adjustment or link setting is needed by the
operator.
96-300060 Specification
AC Input Supply
110 or 220V nominal
Voltage 90 to 132 or 180 to 264V
(absolute limits)
Frequency 47 to 63Hz
DC Output Supply:
24V DC (nominal)
Voltage
22 to 26V (absolute limits)
Current 6.25A
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 433 of 500
23.3.2.
800MHz Uplink Amplifier/ Quadplexer (50-132204)
4U rack mount tray
800MHz Uplink Amplifier/ Quadplexer (50-132204) List of Major Components
Section
23.3.2.3.
23.3.2.4.
23.3.2.5.
23.3.2.6.
23.3.2.7.
23.3.2.8.
23.3.2.9.
23.3.2.10.
23.3.2.11.
23.3.2.12.
23.3.2.13.
23.3.2.14.
23.3.2.15.
Component
Part
02-007206
05-003302
07-015105
10-000701
10-000901
11-006702
12-021901
13-003412
17-001109
17-001201
80-007401
80-008901
94-100004
96-300052
Component Part Description
Bandpass Filter
Four Way Splitter/Combiner
Wideband Asymmetric Coupler
Switched Attenuator 0.25Watt, 0 - 30dB
Switched Attenuator 0.25W, 0 - 15dB
Low Noise Amplifier
Low Power Amplifier
DC/DC Converter
AGC Detector Unit
AGC Attenuator Unit
Dummy Load
12V (Single) Relay Board
Dual Diode Assembly
12V Switch-Mode PSU
Qty Per
Assembly
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 434 of 500
23.3.2.1. 800MHz Uplink Amplifier/ Quadplexer (50-132204) Outline Drawing
Drawing number 50-1322104
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 435 of 500
23.3.2.2. 800MHz Uplink Amplifier/ Quadplexer (50-132204) System Diagram
Drawing number 50-132284
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 436 of 500
23.3.2.3. Bandpass Filter (02-007206)
The bandpass filters are multi-section designs with a bandwidth dependent upon the passband
frequencies, (both tuned to customer requirements). The response shape is basically Chebyshev with
a passband design ripple of 0.1dB. The filters are of slot coupled, folded combline design, and are
carefully aligned during manufacture in order to optimise the insertion loss, VSWR and
intermodulation characteristics of the unit. The tuned elements are silver-plated to reduce surface
ohmic losses and maintain a good VSWR figure and 50Ω load at the input and output ports.
Being passive devices, the bandpass filters should have an extremely long operational life and require
no maintenance. Should a filter be suspect, it is usually most time efficient to replace the module
rather than attempt repair or re-tuning.
No adjustments should be attempted without full network sweep analysis facilities to monitor both
insertion loss and VSWR simultaneously.
02-007206 Specification
PARAMETER
Response type
Frequency range
Bandwidth
Number of sections
Insertion loss
VSWR
Connectors
Power handling
Temperature
operation
range
storage
Weight
SPECIFICATION
Chebyshev
800 - 950MHz *
25MHz *
1.2 dB
better than 1.2:1
SMA female
100W max
-20°C to +60°C
-40°C to +70°C
3 kg (typical)
*tuned to Customer's specification
23.3.2.4. Four Way Splitter/Combiner (05-003302)
The Splitter/Combiner used is a device for accurately matching two or more RF signals to single or
multiple ports, whilst maintaining an accurate 50Ω load to all inputs/outputs and ensuring that the
VSWR and insertion losses are kept to a minimum. Any unused ports should be terminated with an
appropriate 50Ω load.
Four Way Splitter (05-003302) Specification
PARAMETER
Frequency range
Bandwidth
Rejection
Insertion loss
Connectors
Weight
Temperature
operational
range
storage
SPECIFICATION
700-980MHz
180MHz
>14dB
<7.0dB (in band)
N type, female
<1.5kg
-20%C to +60%C
-40%C to +70%C
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 437 of 500
23.3.2.5. Wideband Asymmetric Coupler (07-015105)
The purpose of Wideband Asymmetric Coupler (07-015105) is to tap off a known portion (in this case
30dB) of RF signal from transmission lines and to combine them, for example through splitter units for
different purposes (alarms/monitoring etc.), whilst maintaining an accurate 50Ω load to all
ports/interfaces throughout the specified frequency range. They are known formally as directional
couplers as they couple power from the RF mainline in one direction only.
07-015105 Specification
PARAMETER
Construction
Frequency
Through loss
Coupling level
Isolation
Weight
Connectors
Temperature
operation
range
storage
SPECIFICATION
Inductive air gap
800-2500MHz
0.4dB (typical)
-30dB ±0.5dB
N/A
<1.0kg
SMA, female
-20°C to +60°C
-40°C to +70°C
23.3.2.6. Switched Attenuator 0.25Watt, 0 - 30dB (10-000701)
In many practical applications for Cell Enhancers etc., the gain in each path is found to be excessive.
Therefore, provision is made within the unit for the setting of attenuation in each path, to reduce the
gain.
Switched Attenuator 10-000701 provides attenuation from 0 to 30dB in 2 dB steps The attenuation is
simply set using the four miniature toggle switches on the top of each unit. Each switch is clearly
marked with the attenuation it provides, and the total attenuation in line is the sum of the values
switched in. They are designed to maintain an accurate 50Ω impedance over their operating
frequency at both input and output.
10-000701 Specification
PARAMETER
Attenuation Values
Attenuation Steps
Power Handling
Attenuation Accuracy
Frequency Range
Impedance
Connectors
VSWR
Weight
Temperature
operation
range
storage
SPECIFICATION
0-30dB
2, 4, 8 and 16dB
0.25 Watt
± 1.0 dB
DC to 1GHz
50Ω
SMA
1.3:1
0.2kg
-20°C to +60°C
-40°C to +70°C
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 438 of 500
23.3.2.7. Switched Attenuator 0.25W, 0 - 15dB (10-000901)
In many practical applications for Cell Enhancers etc., the gain in each path is found to be excessive.
Therefore, provision is made within the unit for the setting of attenuation in each path, to reduce the
gain.
10-000901 provides attenuation from 0 - 15dB in 2 dB steps The attenuation is simply set using the
four miniature toggle switches on the top of each unit. Each switch is clearly marked with the
attenuation it provides, and the total attenuation in line is the sum of the values switched in. They are
designed to maintain an accurate 50Ω impedance over their operating frequency at both input and
output.
10-000901 Specification
PARAMETER
Attenuation Values
Attenuation Steps
Power Handling
Attenuation Accuracy
Frequency Range
Impedance
Connectors
VSWR
Weigh
Temperature operation
range
storage
SPECIFICATION
0-15dB
1, 2, 4 and 8dB
0.25 Watt
± 1.0 dB
DC to 1GHz
50Ω
SMA
1.3:1
0.2kg
-20°C to +60°C
-40°C to +70°C
23.3.2.8. Low Noise Amplifier (11-006702)
The Gallium-Arsenide low noise amplifiers used in 800MHz Line Amplifier (55-165703) are double
stage, solid-state low noise amplifiers. Class A circuitry is used throughout the units to ensure
excellent linearity and extremely low noise over a very wide dynamic range. The active devices are
very moderately rated to provide a long trouble-free working life. There are no adjustments on these
amplifiers, and in the unlikely event of a failure, then the complete amplifier should be replaced. This
amplifier features its own in-built alarm system which gives a volt-free relay contact type alarm that is
easily integrated into the main alarm system.
11-006702 Specification
PARAMETER
Frequency range
Bandwidth
Gain
1dB Compression point
OIP3
Input/Output return loss
Noise figure
Power consumption
Supply voltage
Connectors
Temperature operational
range
storage
Size
Weight
SPECIFICATION
800 – 1000MHz
<200MHz
29dB (typical)
20dBm
33dBm
>18dB
1.3dB (typical)
180mA @ 24V DC
10-24V DC
SMA female
-10°C to +60°C
-20°C to +70°C
90 x 55 x 30.2mm
290gms (approximately)
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 439 of 500
Low Noise Amplifier (11-006702) ‘D’ Connector Pin-out details
Connector pin
Signal
+Ve input (10-24V)
GND
Alarm RelayO/P bad
Alarm Relay common
Alarm Relay good
No connection
TTL voltage set
TTL alarm/0V (good)
O/C good/0V bad
9-Way Pin-Out Graphical Representation
23.3.2.9. Low Power Amplifier (12-021901)
The low power amplifier used is a triple stage solid-state low-noise amplifier. Class A circuitry is used
in the unit to ensure excellent linearity over a very wide dynamic range. The three active devices are
very moderately rated to provide a long trouble-free working life.
Its housing is an aluminium case (Iridite NCP finish) with SMA connectors for the RF input/output and
a D-Type connector for the power supply and the Current Fault Alarm Function.
There are no adjustments on this amplifier, and in the unlikely event of failure then the entire amplifier
should be replaced.
Low Power Amplifier (12-021901) Specification
PARAMETER
Frequency range
Bandwidth
Maximum RF output
Gain
1dB compression point
3rd order intercept point
Noise Figure
VSWR
Connectors
Supply
Temperature operational
range
storage
Weight
Size
SPECIFICATION
800-960MHz*
20MHz *
>1.0 Watt
15dB
+30.5dBm
+43dBm
<6dB
better than 1.5:1
SMA female
500mA @ 10-15V DC
-10°C to +60°C
-20°C to +70°C
0.5 kg
167x52x25mm
* Tuned to Customer’s specification
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 440 of 500
Low Power Amplifier (12-021901) 7-Way Connector Pin-outs
Connector Pin
A1 (large pin)
A2 (large pin)
Signal
+24V DC
GND
Alarm relay common
TTL alarm/0V good
Alarm relay contact (bad)
Alarm relay contact (good)
O/C good/0V bad (TTL)
7-Way Connector Graphical Representation
A1
A2
23.3.2.10. DC/DC Converter 13-003412
13-003412 is based upon an O.E.M. DC/DC Converter module with a wide input range and and is
used to derive a 12V fixed voltage power supply rail from a higher voltage supply, in this case 24V. In
the event of failure this unit should not be repaired, only replaced.
13-003412 Specification
PARAMETER
Operating voltage
Output voltages
Output current
Temperature operational
range
storage
SPECIFICATION
18 – 75V DC
12V (typical)
5.0A (Max)
-10%C to +60%C
-20%C to +70%C
23.3.2.11. AGC System
AGC Detector Unit (17-001109)
AGC Attenuator Unit (17-001201)
Equipment 800MHz Uplink Amplifier/ Quadplexer (50-132204) is fitted with a wide dynamic range
Automatic Gain Control (AGC) system. This is fitted in the Uplink path to avoid overloading the
amplifiers (with the associated performance degradation) should a mobile be operated very close to
the unit.
The AFL wide dynamic range Automatic Gain Control system consists of two units, a
detector/amplifier and an attenuator. The logarithmic detector/amplifier unit is inserted in the RF path
on the output of the power amplifier, and the attenuator is situated in the RF path between the 1st and
2nd stages of amplification.
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 441 of 500
Normally the attenuator is at minimum attenuation. The detector/amplifier unit monitors the RF level
being delivered by the power amplifier, and when a certain threshold is reached it begins to increase
the value of the attenuator to limit the RF output to the (factory set) threshold. Therefore overloading
of the power amplifier is avoided.
The factory set threshold is 1dB below the Enhancer 1dB compression point. Some adjustment of this
AGC threshold level is possible, a 10dB range is mostly achieved. It is not recommended under any
circumstances to adjust the AGC threshold to a level greater than the 1dB compression point as
system degradation will occur.
The detector comprises of a 50Ω transmission line with a resistive tap which samples a small portion
of the mainline power. The sampled signal is amplified and fed to a conventional half wave diode
rectifier, the output of which is a DC voltage proportional to the RF input signal.
This DC voltage is passed via an inverting DC amplifier with integrating characteristics, to the output,
which drives the attenuation control line of the corresponding AGC attenuator. This unit is fitted at
some earlier point in the RF circuit.
For small signals, below AGC onset, the output control line will be close to 12V and the AGC
attenuator will have minimum attenuation. As the signal level increases the control line voltage will
fall, increasing the attenuator value and keeping the system output level at a constant value.
The AGC onset level is adjusted by the choice of sampler resistor R1 and by the setting of
potentiometer VR1, (factory set at the time of system test) do not adjust unless able to monitor
subsequent RF levels. The attenuator comprises a 50Ω P.I.N diode, voltage-variable attenuator with a
range of 3 to 30dB. The attenuation is controlled by a DC voltage which is derived from the
associated AGC detector unit.
Wide Dynamic Range AGC Specification
PARAMETER
Frequency Range
Attenuation Range
Attenuation Steps
VSWR
RF Connectors
Power
attenuator
Handling
detector/amp
Temperature
operation
Range
storage
attenuator pcb
Size
detector/amp pcb
attenuator
Weight
detector/amp
SPECIFICATION
up to 1000MHz
3 to 30dB
continuously variable
better than 1.2:1
SMA female
1W
>30W (or as required)
-10°C to +60°C
-20°C to +70°C
50 x 42 x 21mm
54 x 42 x 21mm
90gm
100gm
23.3.2.12. Dummy Load (80-007401)
When a combiner system is used to split or combine RF signals, in many cases it is most cost
effective to use a standard stock item 4, 6 or 8 port device where, in fact, only a 3 or 6 port device is
needed. In this case the Four Way Splitters (05-003302) each have their unused ports terminated with
Dummy Load (80-007401) in order to preserve the correct impedance of the devices over the
specified frequency range. This also has the advantage of allowing future expansion capability should
extra channels or other functions become necessary.
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 442 of 500
Dummy Load (80-007401) Specification
Parameter
Frequency Range
Power Rating
VSWR
0-500MHz
(Max)
500-1000MHz
Temperature
Connector
Nominal Impedance
Specification
0 to 1000MHz
1.6 Watts
1.2:1
1.3:1
-20 to +55°C
‘N’ type Male
50 Ohms
23.3.2.13. 12V (Single) Relay Board (80-008901)
The General Purpose Relay Board allows the inversion of signals and the isolation of circuits. It is
equipped with a single dual pole change-over relay RL1, with completely isolated wiring, accessed
via a 15 way in-line connector. The relay is provided with polarity protection diodes and diodes for
suppressing the transients caused by "flywheel effect" which can destroy switching transistors or
induce spikes on neighbouring circuits. It’s common use is to amalgamate all the alarm signals into
one, volts-free relay contact pair for the main alarm system.
80-008901 Specification
PARAMETER
SPECIFICATION
Operating voltage 8 to 30V (floating earth)
Alarm threshold Vcc - 1.20 volt +15%
Alarm output relay contacts:
Max. switch current 1.0Amp
Max. switch volts 120Vdc/60VA
Max. switch power 24W/60VA
Min. switch load 10.0µA/10.0mV
Relay isolation 1.5kV
Mechanical life >2x107 operations
Relay approval BT type 56
Connector details Screw terminals
Temperature
operational -10°C to +60°C
range
storage -20°C to +70°C
23.3.2.14. Dual Diode Assembly (94-100004)
The purpose of these dual diode assemblies is to allow two DC voltage sources to be combined, so
that the main DC rail within the equipment can be sourced from either a mains driven PSU, or
externally through an XLR connector or from dual mains driven PSUs . They are very heavy-duty
diodes and they prevent any reverse current from flowing back to their source or the alternative
supply rail. Combining diodes such as these will also be used if the equipment is to be powered from
external back-up batteries.
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 443 of 500
23.3.2.15. 12V Switch-Mode PSU (96-300052)
No routine maintenance of the PSU is required. If a fault is suspected, then the output voltage from
the power supply may be measured on its output terminals. This is typically set to 12.2V. The
adjustment potentiometer will be found close to the DC output terminals.
All the PSUs used in AFL Cell Enhancers are capable of operation from either 110 or 220V nominal
AC supplies. The line voltage is sensed automatically, so no adjustment or link setting is needed by
the operator.
96-300052 Specification
AC Input Supply
110 or 220V nominal
85 - 265V AC (absolute limits)
Frequency 47 to 63Hz
DC Output Supply
12V DC (nominal)
Voltage
10.5-13.8V (absolute limits)
Current 12.5A
Voltage
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 444 of 500
24.
INTERNATIONAL STATION 700MHZ BDA (80-330558-1)
Rack number C09-CR-09
International Station 700MHz BDA (80-330558-1) List of Major Components
Section
24.3.1.
24.3.2.
24.3.3.
24.3.4.
Component
Part
05-003007
09-000401
50-132105
50-132106
Component Part Description
4 Port Hybrid Coupler
Dummy Load
700MHz 5 Cavity Combiner System
700MHz 4 Cavity Combiner System
Qty Per
Assembly
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 445 of 500
24.1. International Station 700MHz BDA (80-330558-1) Rack Drawing
Drawing number 80-330558
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 446 of 500
24.2. International Station 700MHz BDA (80-330558-1) System Diagram
Drawing number 80-330588-1
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 447 of 500
24.3. International Station 700MHz BDA (80-330558-1) Major Components
24.3.1.
4 Port Hybrid Coupler (05-003007)
This transmitter hybrid coupler is a device for accurately matching two or more RF signals to single or
multiple ports, whilst maintaining an accurate 50Ω load to all inputs/outputs and ensuring that the
insertion losses are kept to a minimum. Any unused ports should be terminated with an appropriate
50Ω load. In this specific instance one port of 4 Port Hybrid Coupler (05-003007) is terminated with
Dummy load 09-000401 (see below).
05-003007 Specification
PARAMETER
Frequency range
Bandwidth
Rejection
Insertion loss
Connectors
Weight
Temperature operational
range
storage
24.3.2.
SPECIFICATION
700-900MHz
200MHz
>14dB
6.5dB (in band, typical)
SMA
<1.0kg
-10%C to +60%C
-20%C to +70%C
Dummy Load (09-000401)
When a combiner system is used to split or combine RF signals, in many cases it is most cost
effective to use a standard stock item 4, 6 or 8 port device where, in fact, only a 3 - 6 port device is
needed. In this case the splitter/combiner module has one of its ports terminated (both uplink &
downlink) with an appropriate load in order to preserve the correct impedance of the device over the
specified frequency range. This has the advantage of allowing future expansion capability should
extra channels or other functions become necessary.
09-000401 Specification
PARAMETER
Frequency Range
Power Rating
VSWR
Impedance
Temperature Range
RF Connectors
Dimension
Weight
Finish
MTBF
SPECIFICATION
10 - 1000 MHz
60 watts continuous
Better than 1.1:1
50 Ohms
-20 to +60°C
N Type female
119mm x 51mm x 51mm
485grams
Black Anodised
>180,000 hours
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 448 of 500
24.3.3.
700MHz 5 Cavity Combiner System (50-132105)
700MHz 5 Cavity Combiner System (50-132105) consists of 5 Dielectric Cavity Resonators mounted
on two 3U rack mount panels, three on one panel and two on the other
700MHz 5 Cavity Combiner System (50-132105) List of Major Components
section
20.3.2.3.
Component
Part
04-003402
Component Part Description
Dielectric Cavity Resonator
Qty Per
Assembly
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 449 of 500
Document Number 80-330501HBKM – Issue A - Draft
265.9 6U
265.9 6U
190.50
37.7
190.50
37.7
AA
ORIGINAL ISSUE
PL
18/10/2007
PB
PL
MATERIAL - FRONT PANEL & CHASSIS - ALUMINIUM
FINISH - FRONT PANEL - IRIDITE
FRONT PANEL - PAINTED RAL7035 (FRONT FACE & EDGES)
CONNECTORS - `N' TYPE SOCKET
PRODUCT NUMBER : 50-132105
466.00
482.5
18/10/2007
GD
02/10/07
8x SLOTS SUITABLE FOR M6 FIXINGS
1:3
PORT JA4
PORT JA2
PORT JA3
I1
390
50-1321105
700MHz 5CH CAVITY COMBINER OUTLINE DRAWING
PORT JA1
374
PORT JA5
AA
Drawing number 50-1321105
24.3.3.1. 700MHz 5 Cavity Combiner System (50-132105) Outline Drawing
STTRS DOCUMENTATION
Page 450 of 500
532.2 12U
24.3.3.2. 700MHz 5 Cavity Combiner System (50-132105) System Diagram
Drawing number 50-132185
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 451 of 500
24.3.3.3. Dielectric Cavity Resonator (04-003402)
Cavity resonators are used in this system for their high Q factor response and power handling
characteristics. Being finely tuned items, they can be prone to being de-tuned by mechanical shock or
vibration therefore these units should be handled, stored and installed with care.
Note that the cavities are coupled together using critical length harnesses. If any cable is to be
changed the exact same length and type of cable should be used for replacement.
04-003402 Specification
Specification
Frequency Range
Bandwidth
Insertion Loss
Return Loss
Attenuation
Power Handling (CW)
Environmental
Size
Weight
Connectors
Temperature
operation
range
storage
Parameter
764 to 776 MHz *
25 kHz
< 1.0 dB
> 15 dB (at both ports)
> 10 dB at Fc ± 1 MHz
20W
IP54
124mm x 158mm x 157mm**
1.5 kg
N female
-20°C to +60°C
-40°C to +70°C
*Tuned to Customer’s specification
**Height is dependant upon position of tuning plunger
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 452 of 500
24.3.4.
700MHz 4 Cavity Combiner System (50-132106)
700MHz 4 Cavity Combiner System (50-132106) consists of 4 Dielectric Cavity Resonators mounted
on two 3U rack mount panels, three on one panel and two on the other
700MHz 4 Cavity Combiner System (50-132106) List of Major Components
section
20.3.3.3.
Component
Part
04-003402
Component Part Description
Dielectric Cavity Resonator
Qty Per
Assembly
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 453 of 500
Document Number 80-330501HBKM – Issue A - Draft
190.50
37.7
190.50
37.7
265.9 6U
265.9 6U
466.00
482.50
No
AA
STTRS DOCUMENTATION
Page 454 of 500
DESCRIPTION
REVISION
ORIGINA L ISSUE
DATE
15/10/07
BY
PL
26/10/2007
Approved
GD
16/10/07
Date
PORT JA4
1:3
THIS IS A PROPRIE TARY DESIGN OF AERIA L FACILITIES LTD
REPRODUCTION OR USE OF THIS DESIGN B Y OTHER IS
PERMISSABLE ON LY IF EXPRESS LY AUTHORISED IN WRITING
BY AERIA L FACILITIES LTD
SCALE
TOLERANCES
8x SLOTS SUI TABLE FOR M6 FIXINGS
THIRD ANGLE PROJECTION
NO DECIMA L PLACEG 1mm
ALL DIMENSIONS ARE IN mm ONE DECIMA L PLACEG 0.3mm
1mm
UNLESS OTHE RWISE S TATED TWO DECIMA L PLACESG
26/10/2007
Checked
PB
PL
Drawn
MATERIA L - FRON T PANE L & CHASSIS - ALUMINIUM
FINISH - FRON T PANE L - IRIDITE
FRON T PANE L - PAINTED RAL7035 (FRON T FACE & EDGES)
CONNEC TORS - `N' TYPE SOCKE T
PRODUC T NUMBER : 50-132106
Tel : 01494 777000
Fax : 01494 777002
PORT JA2
PORT JA3
I1
Customer
Drawing No
50-1321106
700MHZ 4 C AVITY COMBINER OUTLINE DR AWING
Title
PORT JA1
Aerial Facilities Limited
England
AA A
Drawing number 50-1321106
24.3.4.1. 700MHz 4 Cavity Combiner System (50-132106) Outline Drawing
532.2 12U
24.3.4.2. 700MHz 4 Cavity Combiner System (50-132106) System Diagram
Drawing number 50-132186
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 455 of 500
24.3.4.3.
Dielectric Cavity Resonator (04-003402
Cavity resonators are used in this system for their high Q factor response and power handling
characteristics. Being finely tuned items, they can be prone to being de-tuned by mechanical shock or
vibration therefore these units should be handled, stored and installed with care.
Note that the cavities are coupled together using critical length harnesses. If any cable is to be
changed the exact same length and type of cable should be used for replacement.
04-003402 Specification
Specification
Frequency Range
Bandwidth
Insertion Loss
Return Loss
Attenuation
Power Handling (CW)
Environmental
Size
Weight
Connectors
Temperature
operation
range
storage
Parameter
764 to 776 MHz*
25 kHz
< 1.0 dB
> 15 dB (at both ports)
> 10 dB at Fc ± 1 MHz
20W
IP54
124mm x 158mm x 157mm**
1.5 kg
N female
-20°C to +60°C
-40°C to +70°C
*Tuned to Customer’s specification
**Height is dependant upon position of tuning plunger
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 456 of 500
25.
INTERNATIONAL STATION 700MHz BDA (80-330558-2)
Rack number C09-CR-10
International Station 700MHz BDA (80-330558-2) List of Major Components
Section
25.3.1.
25.3.2.
25.3.3.
Component
Part
50-132102
50-132107
50-132108
Component Part Description
700MHz Channelised Amplifier
700MHz Uplink Amplifier
700MHz Downlink Splitter
Qty Per
Assembly
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 457 of 500
25.1. International Station 700MHz BDA (80-330558-2) Rack Drawing
Drawing number 80-330558
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 458 of 500
25.2. International Station 700MHz BDA (80-330558-2) System Diagram
Drawing number 80-330588-2
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 459 of 500
25.3. International Station 700MHz BDA (80-330558-2) Major Components
25.3.1.
700MHz Channelised Amplifier (50-132102)
3U rack mount shelf
700MHz Channelised Amplifier (50-132102) List of major Components
Section
25.3.1.3.
25.3.1.4.
25.3.1.5.
25.3.1.6.
25.3.1.7.
25.3.1.8.
25.3.1.9.
25.3.1.10.
25.3.1.11.
25.3.1.12.
25.3.1.13.
Component
Part
09-000902
10-000901
11-006702
12-020804
13-003412
17-009127
17-011501
80-008902
93-910048
94-100004
96-300060
Component Part Description
Dummy Load
Switched Attenuator 0.25W, 0 - 15dB
Low Noise Amplifier
Power Amplifier
DC/DC Converter
Channel Selectivity Module
Channel Control Module
24V Relay Board
Dual Isolator
Dual Diode Assembly
PSU 24V
Qty Per
Assembly
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 460 of 500
25.3.1.1. 700MHz Channelised Amplifier (50-132102) Outline Drawing
Drawing number 50-1321102
POWER ON
ALARM
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 461 of 500
25.3.1.2. 700MHz Channelised Amplifier (50-132102) System diagram
Drawing number 50-132182
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 462 of 500
25.3.1.3. Dummy load 09-000902
Dual Isolator (770MHz) (93-910048) has one of its ports terminated with Dummy load 09-000902 in
order to achieve the correct power rating to absorb the reflected power levels that can be reasonably
expected within the system.
09-000902 specification
PARAMETER
Frequency Range
Power Rating
VSWR
Impedance
Temperature Range
RF Connectors
Dimension
Weight
Finish
RF Connector
Environmental
MTBF
SPECIFICATION
0 - 2500 MHz
25 Watts continuous
Better than 1.1:1
50 Ohms
-20 to +60°C
N Type female
110.3mm x 38.1mm x
485 grams
Black Anodised
N Type male
IP66
>180,000 hours
25.3.1.4. Switched Attenuator 0.25W, 0 - 15dB (10-000901)
In many practical applications for Cell Enhancers etc., the gain in each path is found to be excessive.
Therefore, provision is made within the unit for the setting of attenuation in each path, to reduce the
gain.
10-000901 provides attenuation from 0 - 15dB in 2 dB steps The attenuation is simply set using the
four miniature toggle switches on the top of each unit. Each switch is clearly marked with the
attenuation it provides, and the total attenuation in line is the sum of the values switched in. They are
designed to maintain an accurate 50Ω impedance over their operating frequency at both input and
output.
10-000901 Specification
PARAMETER
Attenuation Values
Attenuation Steps
Power Handling
Attenuation Accuracy
Frequency Range
Impedance
Connectors
VSWR
Weight
Temperature operation
range:
storage
SPECIFICATION
0-15dB
1, 2, 4 and 8dB
0.25 Watt
± 1.0 dB
DC to 1GHz
50Ω
SMA
1.3:1
0.2kg
-20°C to +60°C
-40°C to +70°C
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 463 of 500
25.3.1.5. Low Noise Amplifier (11-006702)
The Gallium-Arsenide low noise amplifiers used in 800MHz Line Amplifier (55-165703) are double
stage, solid-state low noise amplifiers. Class A circuitry is used throughout the units to ensure
excellent linearity and extremely low noise over a very wide dynamic range. The active devices are
very moderately rated to provide a long trouble-free working life. There are no adjustments on these
amplifiers, and in the unlikely event of a failure, then the complete amplifier should be replaced. This
amplifier features its own in-built alarm system which gives a volt-free relay contact type alarm that is
easily integrated into the main alarm system.
11-006702 Specification
PARAMETER
Frequency range
Bandwidth
Gain
1dB Compression point
OIP3
Input/Output return loss
Noise figure
Power consumption
Supply voltage
Connectors
Temperature operational
range
storage
Size
Weight
SPECIFICATION
800 – 1000MHz
<200MHz
29dB (typical)
20dBm
33dBm
>18dB
1.3dB (typical)
180mA @ 24V DC
10-24V DC
SMA female
-10°C to +60°C
-20°C to +70°C
90 x 55 x 30.2mm
290gms (approximately)
Low Noise Amplifier (11-006702) ‘D’ Connector Pin-out details
Connector pin
Signal
+Ve input (10-24V)
GND
Alarm RelayO/P bad
Alarm Relay common
Alarm Relay good
No connection
TTL voltage set
TTL alarm/0V (good)
O/C good/0V bad
9-Way Pin-Out Graphical Representation
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 464 of 500
25.3.1.6
Power Amplifier (12-020804)
This amplifier is a Class AB 40W power amplifier from 860MHz to 960MHz in balanced configuration.
The amplifier demonstrates a very good input/output return loss (RL) and it has a built-in Current Fault
Alarm Function.
The unit housing is an aluminium case (Iridite NCP finish) with SMA connectors for the RF
input/output and a D-Type connector for the power supply and the Current Fault Alarm Function.
12-020804 specification
Specification
Frequency Range
Gain
Gain Flatness
∆Gain vs. Temperature
Input RL
Output RL
Output Power @ P1dB
DC Supply Voltage
RF Input Power
DC Supply
At P1dB
Current With no RF input (Iqc)
Temperature
operational
range
storage
Parameter
860 - 960MHz
≥28.0 dB
1.0dB p-p Max
2.5dB Max
15dB Min
15dB Min
46.0dBm Min
24 ± 0.5Vdc
25dBm
6000mA Max
1700mA Max
-40°C to +70°C
-40°C to +100°C
7-Way Connector Pin-outs
Connector Pin
A1
A2
Signal
+24V DC
GND
Alarm relay common
TTL alarm/0V good
Alarm relay contact (bad)
Alarm relay contact (good)
O/C good/0V bad (TTL)
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 465 of 500
25.3.1.7. DC/DC Converter 13-003412
13-003412 is based upon an O.E.M. DC/DC Converter module with a wide input range and and is
used to derive a 12V fixed voltage power supply rail from a higher voltage supply, in this case 24V. In
the event of failure this unit should not be repaired, only replaced.
13-003412 Specification
PARAMETER
Operating voltage
Output voltages
Output current
Temperature operational
range
storage
SPECIFICATION
18 – 75V DC
12V (typical)
5.0A (Max)
-10%C to +60%C
-20%C to +70%C
25.3.1.8. Channel Selectivity Module (17-009127)
Channel Selectivity Module (17-009127) is employed when requirement dictates that very narrow
bandwidths (single operating channels), must be selected from within the operating passband. One
channel selectivity module is required for each channel.
The Channel Selectivity Module is an Up/Down frequency converter that mixes the incoming channel
frequency with a synthesised local oscillator, so that it is down-converted to an Intermediate
Frequency (IF) in the upper HF range. An eight pole crystal filter in the IF amplifier provides the
required selectivity to define the operating passband of the Cell Enhancer to a single PMR channel.
The same local oscillator then converts the selected IF signal back to the channel frequency.
Selectivity is obtained from a fixed bandwidth block filter operating at an intermediate frequency (IF) in
the low VHF range. This filter may be internal to the channel selectivity module (Crystal or SAW filter)
or an externally mounted bandpass filter, (LC or Helical Resonator). Various IF bandwidths can
therefore be accommodated. A synthesized Local Oscillator is employed in conjunction with high
performance frequency mixers, to translate between the signal frequency and IF.
The operating frequency of each channel selectivity module is set by the programming of channel
selectivity module frequencies and is achieved digitally, via hard wired links, banks of DIP switches, or
via an onboard RS232 control module, providing the ability to remotely set channel frequencies.
Automatic Level Control (ALC) is provided within each channel selectivity module such that the output
level is held constant for high level input signals. This feature prevents saturation of the output mixer
and of the associated amplifiers.
Alarms within the module inhibit the channel if the synthesised frequency is not locked. The
synthesiser will not usually go out of lock unless a frequency far out of band is programmed.
The channel selectivity module is extremely complex and, with the exception of channel frequency
programming within the design bandwidth, it cannot be adjusted or repaired without extensive
laboratory facilities and the necessary specialised personnel. If a fault is suspected with any channel
selectivity module it should be tested by substitution and the complete, suspect module should then
be returned to AFL for investigation.
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Document Number 80-330501HBKM – Issue A - Draft
Page 466 of 500
25.3.1.9. Channel Control Module (17-011501)
The operating frequency for each channel in each repeater is programmed by 16 DIL (Dual In Line)
switches. The programming switches are mounted in the Channel Control Module. The Channel
Selectivity Modules are connected to the Channel Control Module via multi-way ribbon cables.
Adjacent to the DIL switches for each channel is a toggle switch to turn on and off individual channels
as required. A green LED indicates the power status of each channel.
A red LED shows the alarm condition for each channel. An illuminated alarm LED indicates that the
synthesiser has not achieved phase lock and that the module is disabled. There is a problem which
requires investigation, often a frequency programmed outside the operating frequency range.
The following information is necessary before attempting the programming procedure.
7. operating frequency
8. synthesiser channel spacing (step size)
9. synthesiser offset (IF)
Programming Procedure
Check that the required frequency falls within the operational frequency limits of the Cell Enhancer.
For each channel required, subtract the synthesiser offset from the required operating frequency and
record the resulting local oscillator frequency.
Divide each local oscillator frequency by the channel spacing and check that the result is an integer
(i.e: no remainder).
If the synthesiser division ratio is not an integer value, check the required operational frequency and
repeat the calculation checking for mistakes.
Convert the required local oscillator frequency to synthesiser programming switch state patterns
according to the following table. Note: the frequency of the passband will dictate the switch steps
used.
Switch Number
10
11
12
13
14
15
16
Switch Functions
Synthesiser offset added when switch in UP position
12.5kHz step size
25kHz step size
+12.5kHz
+25kHz
+25kHz
+50kHz
+50kHz
+100kHz
+100kHz
+200kHz
+200kHz
+400kHz
+400kHz
+800kHz
+800kHz
+1.6MHz
+1.6MHz
+3.2MHz
+3.2MHz
+6.4MHz
+6.4MHz
+12.8MHz
+12.8MHz
+25.6MHz
+25.6MHz
+51.2MHz
+51.2MHz
+102.4MHz
+102.4MHz
+204.8MHz
+204.8MHz
+409.6MHz
+409.6MHz
+819.2MHz
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Document Number 80-330501HBKM – Issue A - Draft
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Programming Example
Frequency required: 454.000MHz
Channel spacing:
12.5kHz
Synthesiser offset:
-21.4MHz
The Local Oscillator frequency is therefore:
454.000 – 21.4 = 432.600MHz
Dividing the Local Oscillator frequency by the channel spacing of 0.0125MHz:
432.600 = 34608
0.0125
This is an integer value, therefore it is OK to proceed.
Local Oscillator
Frequency
432.600 MHz
16
15
Switch setting:
14
13
12
11
Switch settings
10 9
0 = switch DOWN (ON, frequency ignored )
1 = switch UP
(OFF, frequency added )
17-011501 Controller Module DIP Switch Connector Data
IDC PIN
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
17-011501 Controller Module DIP Switch Connector Data
25-way
Function
Function
Connector
(12.5kHz steps)
(25kHz steps)
13
Freq. bit 1 (12.5kHz)
Freq. bit 1 (25kHz)
25
Freq. bit 2 (25kHz)
Freq. bit 2 (50kHz)
12
Freq. bit 3 (50kHz)
Freq. bit 3 (100kHz)
24
Freq. bit 4 (100kHz)
Freq. bit 4 (200kHz)
11
Freq. bit 5 (200kHz)
Freq. bit 5 (400kHz)
23
Freq. bit 6 (400kHz)
Freq. bit 6 (800kHz)
10
Freq. bit 7 (800kHz)
Freq. bit 7 (1.6MHz)
22
Freq. bit 8 (1.6MHz)
Freq. bit 8 (3.2MHz)
Freq. bit 9 (3.2MHz)
Freq. bit 9 (6.4MHz)
21
Freq. bit 10 (6.4MHz)
Freq. bit 10 (12.8MHz)
Freq. bit 11 (12.8MHz)
Freq. bit 11 (25.6MHz)
20
Freq. bit 12 (25.6MHz)
Freq. bit 12 (51.2MHz)
Freq. bit 13 (51.2MHz)
Freq. bit 13 (102.4MHz)
19
Freq. bit 14 (102.4MHz) Freq. bit 14 (204.8MHz)
Freq. bit 15 (204.8MHz) Freq. bit 15 (409.6MHz)
18
Freq. bit 16 (409.6MHz) Freq. bit 16 (819.2MHz)
Module alarm
Module alarm
17
Gain bit 1
Gain bit 1
Gain bit 2
Gain bit 2
16
Gain bit 3
Gain bit 3
Gain bit 4
Gain bit 4
15
(5V
(5V
0V
0V
14
Switched 12V
Switched 12V
0V
0V
-------
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Document Number 80-330501HBKM – Issue A - Draft
Page 468 of 500
25.3.1.10. 24V Relay Board (80-008902)
The General Purpose Relay Board allows the inversion of signals and the isolation of circuits. It is
equipped with a single, dual pole, change-over relay RL1 with completely isolated wiring, accessed
via screw terminals.
The relay is provided with a polarity protection diode and diodes for suppressing the transients
caused by "flywheel effect" which can destroy switching transistors or induce spikes on neighbouring
circuits. It’s common use is to amalgamate all the alarm signals into one, volts-free relay contact pair
for the main alarm system.
80-008902 Technical Specification
Parameter
Max. switch current
Max. switch volts
Max. switch power
Min. switch load
Relay isolation
Mechanical life
Relay approval
Connector details
Temperature
operational
range
storage
Specification
1.0Amp
120Vdc/60VA
24W/60VA
10.0µA/10.0mV
1.5kV
>2x107 operations
BT type 56
15-way 0.1" pitch
-10°C to +55°C
-40°C to +70°C
25.3.1.11. Dual Isolator (770MHz) (93-910048)
The purpose of fitting an isolator to the output of a transmitter in a multi-transmitter environment is so
that each output is afforded a degree of isolation from every other. Without the addition of Isolators,
simultaneous transmissions could interfere to create intermodulation products and spurious
transmissions would be created which would cause interference.
Dual Isolator (93-910048) is a ferro-magnetic RF device, which has directional properties. In the
forward direction, RF arriving at the input is passed to the output with minimal attenuation. In the
reverse direction, RF arriving at the output due to reflected power from a badly matched load, or due
to coupling with another transmitter, is routed into an RF load where it is absorbed. The isolator
therefore functions to prevent reflected RF energy reaching the output port of an amplifier where it
could cause intermodulation products or premature device failure.
Dual Isolator (93-910048) is as its name suggests a two stage device, essentially two isolators in one
casing. One isolator stage has an internal 10W load fitted, the second stage needs an external load
fitted of sufficient rating to absorb the reflected power levels that can be reasonably expected within
the system. In this instance Dual Isolator (93-910048) is fitted with external load 09-000902.
93-910048 Specification
Parameter
Frequency Range
Insertion Loss
Isolation
Return Loss
Power Handling
RF Connectors
Specification
760-780 MHz
0.4 dB max.
50 dB min.
23 dB min.
10W (internally fitted load)
N female
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Page 469 of 500
25.3.1.12. Dual Diode Assembly (94-100004)
The purpose of these dual diode assemblies is to allow two DC voltage sources to be combined, so
that the main DC rail within the equipment can be sourced from either a mains driven PSU, or
externally through an XLR connector or from dual mains driven PSUs . They are very heavy-duty
diodes and they prevent any reverse current from flowing back to their source or the alternative
supply rail. Combining diodes such as these will also be used if the equipment is to be powered from
external back-up batteries.
25.3.1.13. PSU 24V (96-300060)
The power supply unit is a switched-mode type capable of supplying 24V DC at 6.25Amps
continuously. Equipment of this type typically requires approximately 2-2.5Amps at 24V DC, so the
PSU will be used conservatively ensuring a long operational lifetime.
No routine maintenance of the PSU is required. If a fault is suspected, then the output voltage from
the power supply may be measured on its output terminals. This is typically set to 24.5V. The output
voltage may be varied using a multi-turn adjustment potentiometer mounted close to the DC output
terminals.
The line input voltage is sensed automatically, so no adjustment or link setting is needed by the
operator.
96-300060 Specification
AC Input Supply
110 or 220V nominal
Voltage 90 to 132 or 180 to 264V
(absolute limits)
Frequency 47 to 63Hz
DC Output Supply:
24V DC (nominal)
Voltage
22 to 26V (absolute limits)
Current 6.25A
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25.3.2.
700MHz Uplink Amplifier (50-132107)
2U rack mount tray
700MHz Uplink Amplifier (50-132107) List of major Components
Section
25.3.2.3.
25.3.2.4.
25.3.2.5.
25.3.2.6.
25.3.2.7.
25.3.2.8.
25.3.2.9.
25.3.2.10.
Component
Part
10-000701
11-006702
12-021901
13-003412
17-001109
17-001201
80-008901
94-100004
96-300052
Component Part Description
Switched Attenuator 0.25Watt, 0 - 30dB
Low Noise Amplifier
Low Power Amplifier
DC/DC Converter
AGC Detector Assembly (Logarithmic)
AGC Detector Assembly
12V (Single) Relay Board
Dual Diode Assembly
12V Switch-Mode PSU
Qty Per
Assembly
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Document Number 80-330501HBKM – Issue A - Draft
Page 471 of 500
25.3.2.1. 700MHz Uplink Amplifier (50-132107) Outline Drawing
Drawing number 50-1321107
POWER ON
ALARM
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Page 472 of 500
25.3.2.2. 700MHz Uplink Amplifier (50-132107) System Diagram
Drawing number 50-132187
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25.3.2.3. Switched Attenuator 0.25Watt, 0 - 30dB (10-000701)
In many practical applications for Cell Enhancers etc., the gain in each path is found to be excessive.
Therefore, provision is made within the unit for the setting of attenuation in each path, to reduce the
gain.
Switched Attenuator 10-000701 provides attenuation from 0 to 30dB in 2 dB steps The attenuation is
simply set using the four miniature toggle switches on the top of each unit. Each switch is clearly
marked with the attenuation it provides, and the total attenuation in line is the sum of the values
switched in. They are designed to maintain an accurate 50Ω impedance over their operating
frequency at both input and output.
10-000701 Specification
PARAMETER
Attenuation Values
Attenuation Steps
Power Handling
Attenuation Accuracy
Frequency Range
Impedance
Connectors
VSWR
Weight
Temperature
operation
range
storage
SPECIFICATION
0-30dB
2, 4, 8 and 16dB
0.25 Watt
± 1.0 dB
DC to 1GHz
50Ω
SMA
1.3:1
0.2kg
-20°C to +60°C
-40°C to +70°C
25.3.2.4. Low Noise Amplifier (11-006702)
The Gallium-Arsenide low noise amplifiers used in 700MHz Line Amplifier (55-165704) are double
stage, solid-state low noise amplifiers. Class A circuitry is used throughout the units to ensure
excellent linearity and extremely low noise over a very wide dynamic range. The active devices are
very moderately rated to provide a long trouble-free working life. There are no adjustments on these
amplifiers, and in the unlikely event of a failure, then the complete amplifier should be replaced. This
amplifier features its own in-built alarm system which gives a volt-free relay contact type alarm that is
easily integrated into the main alarm system.
11-006702 Specification
PARAMETER
Frequency range
Bandwidth
Gain
1dB Compression point
OIP3
Input/Output return loss
Noise figure
Power consumption
Supply voltage
Connectors
Temperature operational
range
storage
Size
Weight
SPECIFICATION
800 - 1000MHz
<200MHz
29dB (typical)
20dBm
33dBm
>18dB
1.3dB (typical)
180mA @ 24V DC
10-24V DC
SMA female
-10°C to +60°C
-20°C to +70°C
90 x 55 x 30.2mm
290gms (approximately)
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Low Noise Amplifier (11-006702) ‘D’ Connector Pin-out details
Connector pin
Signal
+Ve input (10-24V)
GND
Alarm RelayO/P bad
Alarm Relay common
Alarm Relay good
No connection
TTL voltage set
TTL alarm/0V (good)
O/C good/0V bad
9-Way Pin-Out Graphical Representation
25.3.2.5. Low Power Amplifier (12-021901)
The low power amplifier used is a triple stage solid-state low-noise amplifier. Class A circuitry is used
in the unit to ensure excellent linearity over a very wide dynamic range. The three active devices are
very moderately rated to provide a long trouble-free working life.
Its housing is an aluminium case (Iridite NCP finish) with SMA connectors for the RF input/output and
a D-Type connector for the power supply and the Current Fault Alarm Function.
There are no adjustments on this amplifier, and in the unlikely event of failure then the entire amplifier
should be replaced.
Low Power Amplifier (12-021901) Specification
PARAMETER
Frequency range
Bandwidth
Maximum RF output
Gain
1dB compression point
3rd order intercept point
Noise Figure
VSWR
Connectors
Supply
Temperature operational
range
storage
Weight
Size
SPECIFICATION
800-960MHz*
20MHz *
>1.0 Watt
15dB
+30.5dBm
+43dBm
<6dB
better than 1.5:1
SMA female
500mA @ 10-15V DC
-10°C to +60°C
-20°C to +70°C
0.5 kg
167x52x25mm
* Tuned to Customer’s specification
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Document Number 80-330501HBKM – Issue A - Draft
Page 475 of 500
Low Power Amplifier (12-021901) 7-Way Connector Pin-outs
Connector Pin
A1 (large pin)
A2 (large pin)
Signal
+24V DC
GND
Alarm relay common
TTL alarm/0V good
Alarm relay contact (bad)
Alarm relay contact (good)
O/C good/0V bad (TTL)
25.3.2.6. DC/DC Converter 13-003412
13-003412 is based upon an O.E.M. DC/DC Converter module with a wide input range and and is
used to derive a 12V fixed voltage power supply rail from a higher voltage supply, in this case 24V. In
the event of failure this unit should not be repaired, only replaced.
13-003412 Specification
PARAMETER
Operating voltage
Output voltages
Output current
Temperature operational
range
storage
SPECIFICATION
18 – 75V DC
12V (typical)
5.0A (Max)
-10%C to +60%C
-20%C to +70%C
25.3.2.7. AGC System
AGC Detector Unit (17-001109)
AGC Attenuator Unit (17-001201)
Equipment 700MHz Uplink Amplifier (50-132107) is fitted with a wide dynamic range Automatic Gain
Control (AGC) system. This is fitted in the Uplink path to avoid overloading the amplifiers (with the
associated performance degradation) should a mobile be operated very close to the unit.
The AFL wide dynamic range Automatic Gain Control system consists of two units, a
detector/amplifier and an attenuator. The logarithmic detector/amplifier unit is inserted in the RF path
on the output of the power amplifier, and the attenuator is situated in the RF path between the 1st and
2nd stages of amplification.
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Normally the attenuator is at minimum attenuation. The detector/amplifier unit monitors the RF level
being delivered by the power amplifier, and when a certain threshold is reached it begins to increase
the value of the attenuator to limit the RF output to the (factory set) threshold. Therefore overloading
of the power amplifier is avoided.
The factory set threshold is 1dB below the Enhancer 1dB compression point. Some adjustment of this
AGC threshold level is possible, a 10dB range is mostly achieved. It is not recommended under any
circumstances to adjust the AGC threshold to a level greater than the 1dB compression point as
system degradation will occur.
The detector comprises of a 50Ω transmission line with a resistive tap which samples a small portion
of the mainline power. The sampled signal is amplified and fed to a conventional half wave diode
rectifier, the output of which is a DC voltage proportional to the RF input signal.
This DC voltage is passed via an inverting DC amplifier with integrating characteristics, to the output,
which drives the attenuation control line of the corresponding AGC attenuator. This unit is fitted at
some earlier point in the RF circuit.
For small signals, below AGC onset, the output control line will be close to 12V and the AGC
attenuator will have minimum attenuation. As the signal level increases the control line voltage will
fall, increasing the attenuator value and keeping the system output level at a constant value.
The AGC onset level is adjusted by the choice of sampler resistor R1 and by the setting of
potentiometer VR1, (factory set at the time of system test) do not adjust unless able to monitor
subsequent RF levels. The attenuator comprises a 50Ω P.I.N diode, voltage-variable attenuator with a
range of 3 to 30dB. The attenuation is controlled by a DC voltage which is derived from the
associated AGC detector unit.
Wide Dynamic Range AGC Specification
PARAMETER
Frequency Range
Attenuation Range
Attenuation Steps
VSWR
RF Connectors
Power
attenuator
Handling
detector/amp
Temperature
operation
Range
storage
attenuator pcb
Size
detector/amp pcb
attenuator
Weight
detector/amp
SPECIFICATION
up to 1000MHz
3 to 30dB
continuously variable
better than 1.2:1
SMA female
1W
>30W (or as required)
-10°C to +60°C
-20°C to +70°C
50 x 42 x 21mm
54 x 42 x 21mm
90gm
100gm
25.3.2.8. 12V (Single) Relay Board (80-008901)
The General Purpose Relay Board allows the inversion of signals and the isolation of circuits. It is
equipped with a single dual pole change-over relay RL1, with completely isolated wiring, accessed
via a 15 way in-line connector.
The relay is provided with polarity protection diodes and diodes for suppressing the transients caused
by "flywheel effect" which can destroy switching transistors or induce spikes on neighbouring circuits.
It’s common use is to amalgamate all the alarm signals into one, volts-free relay contact pair for the
main alarm system.
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Page 477 of 500
80-008901 Specification
PARAMETER
SPECIFICATION
Operating voltage 8 to 30V (floating earth)
Alarm threshold Vcc - 1.20 volt +15%
Alarm output relay contacts:
Max. switch current 1.0Amp
Max. switch volts 120Vdc/60VA
Max. switch power 24W/60VA
Min. switch load 10.0µA/10.0mV
Relay isolation 1.5kV
Mechanical life >2x107 operations
Relay approval BT type 56
Connector details Screw terminals
Temperature
operational -10°C to +60°C
range
storage -20°C to +70°C
25.3.2.9. Dual Diode Assembly (94-100004)
The purpose of these dual diode assemblies is to allow two DC voltage sources to be combined, so
that the main DC rail within the equipment can be sourced from either a mains driven PSU, or
externally through an XLR connector or from dual mains driven PSUs . They are very heavy-duty
diodes and they prevent any reverse current from flowing back to their source or the alternative
supply rail. Combining diodes such as these will also be used if the equipment is to be powered from
external back-up batteries.
25.3.2.10. 12V Switch-Mode PSU (96-300052)
No routine maintenance of the PSU is required. If a fault is suspected, then the output voltage from
the power supply may be measured on its output terminals. This is typically set to 12.2V. The
adjustment potentiometer will be found close to the DC output terminals.
All the PSUs used in AFL Cell Enhancers are capable of operation from either 110 or 220V nominal
AC supplies. The line voltage is sensed automatically, so no adjustment or link setting is needed by
the operator.
96-300052 Specification
AC Input Supply
110 or 220V nominal
Voltage 85 - 265V AC
(absolute limits)
Frequency 47 to 63Hz
DC Output Supply
12V DC (nominal)
Voltage
10.5-13.8V (absolute limits)
Current 12.5A
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25.3.3.
700MHz Downlink Splitter (50-132108)
2U rack mount tray
700MHz Downlink Splitter (50-132108) List of Major Components
Section
25.3.3.3.
25.3.3.4.
25.3.3.5.
Component
Part
05-003302
10-000901
80-007401
Component Part Description
Four Way Splitter/Combiner
Switched Attenuator 0.25W, 0 - 15dB
Dummy Load
Qty Per
Assembly
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Document Number 80-330501HBKM – Issue A - Draft
Page 479 of 500
25.3.3.1. 700MHz Downlink Splitter (50-132108) Outline Drawing
Drawing number 50-1321108
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 480 of 500
25.3.3.2. 700MHz Downlink Splitter (50-132108) System Diagram
Drawing number 50-132188
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Page 481 of 500
25.3.3.3. Four Way Splitter/Combiner (05-003302)
The Splitter/Combiner used is a device for accurately matching two or more RF signals to single or
multiple ports, whilst maintaining an accurate 50Ω load to all inputs/outputs and ensuring that the
VSWR and insertion losses are kept to a minimum. Any unused ports should be terminated with an
appropriate 50Ω load.
Four Way Splitter (05-003302) Specification
PARAMETER
Frequency range:
Bandwidth:
Rejection:
Insertion loss:
Connectors:
Weight:
operational
Temperature
range:
storage
SPECIFICATION
700-980MHz
180MHz
>14dB
<7.0dB (in band)
N type, female
<1.5kg
-20%C to +60%C
-40%C to +70%C
25.3.3.4. Switched Attenuator 0.25W, 0 - 15dB (10-000901)
In many practical applications for Cell Enhancers etc., the gain in each path is found to be excessive.
Therefore, provision is made within the unit for the setting of attenuation in each path, to reduce the
gain.
10-000901 provides attenuation from 0 - 15dB in 2 dB steps The attenuation is simply set using the
four miniature toggle switches on the top of each unit. Each switch is clearly marked with the
attenuation it provides, and the total attenuation in line is the sum of the values switched in. They are
designed to maintain an accurate 50Ω impedance over their operating frequency at both input and
output.
10-000901 Specification
PARAMETER
Attenuation Values
Attenuation Steps
Power Handling
Attenuation Accuracy
Frequency Range
Impedance
Connectors
VSWR
Weigh
Temperature operation
range
storage
SPECIFICATION
0-15dB
1, 2, 4 and 8dB
0.25 Watt
± 1.0 dB
DC to 1GHz
50Ω
SMA
1.3:1
0.2kg
-20°C to +60°C
-40°C to +70°C
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Document Number 80-330501HBKM – Issue A - Draft
Page 482 of 500
25.3.3.5. Dummy Load (80-007401)
When a combiner system is used to split or combine RF signals, in many cases it is most cost
effective to use a standard stock item 4, 6 or 8 port device where, in fact, only a 3 or 6 port device is
needed. In this case seven of the outputs from the Four Way Splitter/Combiner (05-003302) have
their ports terminated with Dummy Load (80-007401) in order to preserve the correct impedance of
the devices over the specified frequency range. This also has the advantage of allowing future
expansion capability should extra channels or other functions become necessary.
Dummy Load (80-007401) Specification
Parameter
Frequency Range
Power Rating
VSWR
0-500MHz
(Max)
500-1000MHz
Temperature
Connector
Nominal Impedance
Specification
0 to 1000MHz
1.6 Watts
1.2:1
1.3:1
-20 to +55°C
‘N’ type Male
50 Ohms
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26
2 WAY POWER SPLITTER 50/50 (05-009901)
The power Splitter is a device for accurately matching two or more RF signals to single or multiple
ports, whilst maintaining an accurate 50Ω load to all inputs/outputs and ensuring that the VSWR,
return and insertion losses are kept to a minimum. Any unused ports should be terminated with an
appropriate 50Ω load. Power devices such as these, typically give 10dB better output isolation than
low power equivalents – (important for splitters that feed antenna systems).
2 Way Power Splitter 05-009901
Specification
Frequency Range
Impedence
Insertion Loss
VSWR
Maximum
Splitter
input power
Combiner
Power splitting/combining ratio
RF Connectors
Dimensions
Temperature
operation
range
storage
Parameter
764 – 860MHz
50Ω
≤ ± 0.3dB
1.25:1
100Watts
5Watts
50% - 50%
N Female
104mm x 63mm x 46mm
-20°C to +60°C
-40°C to +70°C
2 WAY POWER SPLITTER 50/50 (05-009901) Outline Drawing
Drawing number 05-009991
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27
2 WAY POWER SPLITTER 90/10 (05-009902)
The power Splitter is a device for accurately matching two or more RF signals to single or multiple
ports, whilst maintaining an accurate 50Ω load to all inputs/outputs and ensuring that the VSWR,
return and insertion losses are kept to a minimum. Any unused ports should be terminated with an
appropriate 50Ω load. Power devices such as these, typically give 10dB better output isolation than
low power equivalents – (important for splitters that feed antenna systems).
2 way power splitter 05-009902
Specification
Frequency Range
Impedence
Insertion Loss
VSWR
Maximum
Splitter
input power
Combiner
Power splitting/combining ratio
RF Connectors
Dimensions
Temperature
operation
range
storage
Parameter
764 – 860MHz
50Ω
≤ ± 0.3dB
1.25:1
100Watts
5Watts
90% - 10%
N Female
104mm x 63mm x 46mm
-20°C to +60°C
-40°C to +70°C
2 WAY POWER SPLITTER 90/10 (05-009902) Outline Drawing
Drawing number 05-009991
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Document Number 80-330501HBKM – Issue A - Draft
Page 485 of 500
28
2 WAY POWER SPLITTER 80/20 (05-009903)
The power Splitter is a device for accurately matching two or more RF signals to single or multiple
ports, whilst maintaining an accurate 50Ω load to all inputs/outputs and ensuring that the VSWR,
return and insertion losses are kept to a minimum. Any unused ports should be terminated with an
appropriate 50Ω load. Power devices such as these, typically give 10dB better output isolation than
low power equivalents – (important for splitters that feed antenna systems).
2 way power splitter 05-009903
Specification
Frequency Range
Impedence
Insertion Loss
VSWR
Maximum
Splitter
input power
Combiner
Power splitting/combining ratio
RF Connectors
Dimensions
Temperature
operation
range
storage
Parameter
764 – 860MHz
50Ω
≤ ± 0.3dB
1.25:1
100Watts
5Watts
80% - 20%
N Female
104mm x 63mm x 46mm
-20°C to +60°C
-40°C to +70°C
2 WAY POWER SPLITTER 80/20 (05-009903) Outline Drawing
Drawing number 05-009991
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 486 of 500
29
2 WAY POWER SPLITTER 60/40 (05-009904)
The power Splitter is a device for accurately matching two or more RF signals to single or multiple
ports, whilst maintaining an accurate 50Ω load to all inputs/outputs and ensuring that the VSWR,
return and insertion losses are kept to a minimum. Any unused ports should be terminated with an
appropriate 50Ω load. Power devices such as these, typically give 10dB better output isolation than
low power equivalents – (important for splitters that feed antenna systems).
2 way power splitter 05-009904
Specification
Frequency Range
Impedence
Insertion Loss
VSWR
Maximum
Splitter
input power
Combiner
Power splitting/combining ratio
RF Connectors
Dimensions
Temperature
operation
range
storage
Parameter
764 – 860MHz
50Ω
≤ ± 0.3dB
1.25:1
100Watts
5Watts
60% - 40%
N Female
104mm x 63mm x 46mm
-20°C to +60°C
-40°C to +70°C
2 WAY POWER SPLITTER 60/40 (05-009904) Outline Drawing
Drawing number 05-009991
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 487 of 500
30
2 WAY POWER SPLITTER 70/30 (05-009905)
The power Splitter is a device for accurately matching two or more RF signals to single or multiple
ports, whilst maintaining an accurate 50Ω load to all inputs/outputs and ensuring that the VSWR,
return and insertion losses are kept to a minimum. Any unused ports should be terminated with an
appropriate 50Ω load. Power devices such as these, typically give 10dB better output isolation than
low power equivalents – (important for splitters that feed antenna systems).
2 way power splitter 05-009905
Specification
Frequency Range
Impedence
Insertion Loss
VSWR
Maximum
Splitter
input power
Combiner
Power splitting/combining ratio
RF Connectors
Dimensions
Temperature
operation
range
storage
Parameter
764 – 860MHz
50Ω
≤ ± 0.3dB
1.25:1
100Watts
5Watts
70% - 30%
N Female
104mm x 63mm x 46mm
-20°C to +60°C
-40°C to +70°C
2 WAY POWER SPLITTER 70/30 (05-009905) Outline Drawing
Drawing number 05-009991
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 488 of 500
05-009901
05-009902
05-009903
05-009904
05-009905
31 ***///***05-009906
32 ***///***05-009907
33 ***///***05-009908
34 ***///***05-009909
35 ***///***05-009910
36 ***///***05-009911
37 ***///***05-009912
38 ***///***80-237501
39 ***///***80-237501
40 ***///***80-237501
41 ***///***80-237501
42 ***///***80-237501
43 ***///***80-237501
44.
not “real” numbers
Section
26
27
28
29
30
Description
2 WAY SPLITTER 50/50 separate
2 W SPLITTER 90/10 separate
2 W SPLITTER 80/20 separate
2 W SPLITTER 60/40
2 W SPLITTER 70/30 separate
3 W SPLITTER 33/33/33 separate
Qty
14
3 W SPLITTER 40/20/40 separate
3 W SPLITTER 80/10/10 separate
4 W SPLITTER 70/10/10/10 separate
4 W SPLITTER 25/25/25/25 separate
5 WAY POWER SPLITTER
3 W SPLITTER 60/40/10 separate
2W SPLITTER 50/50 built into racks
11
2 W SPLITTER 90/10 built into racks
12
2 W SPLITTER 70/30 built into racks
3 W SPLIT 33/33/33 built into racks
3 W SPLIT 40/20/40 built into racks
4W SPLIT25/25/25/25 built into rack
SPARES PACKAGE (80-330520)
Not yet defined...
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 489 of 500
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APPENDIX A
A.1. Glossary of Terms used in this document
Repeater or
Cell Enhancer
Band Selective
Repeater
Channel Selective
Repeater
AC
AGC
BBU
BTS
CEMS
C/NR
DAB
DC
Downlink (D/L)
FO
GND
ID
LED
LCX
LNA
LPA
MOU
MS
MST
MTBF
N/A
N/C
OFR
OIP3
PA
RF
RSA
Rx
S/N
TTL
Tx
Uplink (U/L)
VSWR
WDM
A Radio Frequency amplifier which can simultaneously amplify and rebroadcast Mobile Station and Base Transceiver Station signals.
A Cell Enhancer designed for operation on a range of channels within a
specified frequency band.
A Cell Enhancer, designed for operation on specified channel(s) within a
specified frequency band. Channel frequencies may be factory set or onsite programmable.
Alternating Current
Automatic Gain Control
Battery Backup Unit
Base Transceiver Station
Coverage Enhancement Management System
Carrier-to-Noise Ratio
Digital Audio Broadcasting
Direct Current
RF signals Tx from the BTS to the Master Site
Fibre Optic
Ground
Identification Number
Light Emitting Diode
Coaxial Leaky Feeder
Low Noise Amplifier
Low Power Amplifier
Master Optical Unit
Master Site
Mobile Station
Mean Time Between Failures
Not Applicable
No Connection
On Frequency Repeater
Output Third Order Intercept Point = RFout +(C/I)/2
Power Amplifier
Radio Frequency
Receiver/Splitter Amplifier
Receiver
Serial Number
Transistor-Transistor Logic, a common type of digital circuit.
Transmitter
RF signals transmitted from the MS to the BTS
Voltage Standing Wave Ratio
Wave division multiplex
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 497 of 500
Document Number 80-330501HBKM – Issue A - Draft
GD
APPD
10/ 05/ 00
DATE
RF
ALL DIMENSIONS ARE IN mm
UNLESS OTHERWISE STATED
MB
CHKD
PL
DRAWN
RF
FREQUENCY PROGRAMMING
DATA
B / W=30 to 200 kHz
HI
IN
OUT
Outputs to receivers
IN
IN
R. S. A
LEEKY FEEDER
EARTH STUD
HYBRID COMBINER
ISOLATOR
NOTCH FILTER
CAVITY RESONATOR
BAND PASS FILTER
MISC
CROSS BAND COUPLER
DIRECTIONAL COUPLER
NO DECIMAL PLACE ±1 mm
ONE DECIMAL PLACE ±0. 3 mm
TWO DECIMAL PLACES ±0.1 mm
TOLERANCES
SCALE
NTS
THIS IS A PROPRIETARY DESIGN OF AERIAL FACILITIES LTD
REPRODUCTION OR USE OF THIS DESIGN BY OTHERS IS
PERMISSIBLE ONLY IF EXPRESSLY AUTHORISED IN WRITING
BY AERIAL FACILITIES LTD.
FIBRE OPTIC
CONNECTOR
FC/ APC
PLUG
SOCKET
PLUG & SOCKET
DEMODULATOR
FIBRE- OPTIC
MODULATOR
FIBRE- OPTIC
CHANNEL MODULE
COM
COUPLED
6 dB DIRECTIONAL COUPLER
10 dB DIRECTIONAL COUPLER
C10
dB DIRECTIONAL COUPLER
10 dB COUPLER
OUT
COUPLERS
C6
C 10
LOW
BASE TRANSCEIVER
STATION
TAPPER/ COUPLER
BTS
EXPANSION HUB
EH
MISC
FIBRE MAIN HUB
HUBS
FMH
dB
dB
dB
DC
Outputs
( up to
16 way)
DC
OUT
FUSE
DC TO DC
CONVERTER
AC TO DC PSU
THIRD ANGLE PROJECTION
AFL -
CUSTOMER
TITLE
RELAY
N.C. ( FILLED CONTACT)
Tel : 01494 777000
Fax : 01494 777002
MISC
SPLITTER
HYBRID SPLITTER
N.O. ( CLEAR CONTACT)
COM
IN
OUT
SPLITTERS
Aerial Facilities Limited
England
LOCAL OSCILLATOR
DUMMY LOAD
BI- DIRECTIONAL AMPLIFIER
( CELL ENHANCER)
MODEM
MONITORING CONTROLLER
A. G.C
ATTENUATOR( FIXED)
ATTENUATOR( VARIABLE)
AMPLIFIER
MISC
C0- AX CABLE
7/8 " DIA
C0- AX CABLE
1/2 " DIA
CAT 5 CABLE
RADIATING CABLE
JUMPER
CABLE1/ 2"
24/ FIBRE OPTIC CABLE/ LINK
LOCAL OSCILLATOR
MODEM
8/ FIBRE OPTIC CABLE/ LINK
CABLES
MONITORING
CONTROLLER
AGC
ANTENNAS
BSIC( BASIC SITE
IDENTITY CODE
ISSUE
DRAWING
. No
90- 000001
DATE
28/07/ 04
26/01/ 04
21/06/ 00
23/05/ 00
STANDARD FOR
ALL AIRPORTS
BY
PL
PL
PL
PL
STANDARD EXCEPT
FOR AIRPORTS
( SEE BELOW)
TEXT CORRECTION
ECN3165
BLADE ANTENNA ADDED
ORIGINAL
ISSUE DESCRIPTION
STANDARD SYMBOLS
No
2B
2A
1A
AA
- 73 = BELOW ACCEPTABLE
SIGNAL LEVEL( dBm)
- 72 = ACCEPTABLE SIGNAL
LEVEL( dBm)
- 83 = BELOW ACCEPTABLE
SIGNAL LEVEL
( dBm)
- 82 = ACCEPTABLE SIGNAL
LEVEL( dBm)
22 =
BCCH( BROADCAST
CONTROL CHANNEL
= READING POSITION
SIGNAL KEY
BLADE ANTENNA
PANEL ANTENNA
REMOTE ANTENNA UNIT
ANTENNA
DIRECTIONAL ANTENNA
FLAT PLATE ANTENNA
( MOUNTED AT HIGH LEVEL)
YAGI ANTENNA
OMNI ANTENNA
602=
RAU
A.2. Key to Drawing Symbols used in this document
STTRS DOCUMENTATION
Page 498 of 500
A.3. EC Declaration of Conformity
Aerial Facilities Limited
In accordance with BS EN ISO/IEC 17050-1&-2:2004
Aerial Facilities Limited
Aerial House
Asheridge Road
Chesham
Buckinghamshire HP5 2QD
United Kingdom
DECLARES, UNDER OUR SOLE RESPONSIBILITY THAT THE FOLLOWING PRODUCT:
PRODUCT PART NO[S]
**************
PRODUCT DESCRIPTION **************
IN ACCORDANCE WITH THE FOLLOWING DIRECTIVES:
1999/5/EC
and
The Radio & Telecommunications Terminal Equipment Directive Annex V
its amending directives
HAS BEEN DESIGNED AND MANUFACTURED TO THE FOLLOWING STANDARD[S] OR
OTHER NORMATIVE DOCUMENT[S]:
BS EN 60950
Information technology equipment.
Safety. General requirements
ETS EN 301 489-1 EMC standard for radio equipment and services.
Part 1. Common technical requirements
I hereby declare that the equipment named above has been designed to comply with the relevant
sections of the above referenced specifications. The unit complies with all essential requirements
of the Directives.
SIGNED
B S BARTON
TECHNICAL DIRECTOR
DATE: dd/mm/yyyy
Registered Office: Aerial House, Asheridge Road, Chesham, Buckinghamshire, HP5 2QD England Registered No. 4042808 (England)
www.aerialfacilities.com
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 499 of 500
A.4. Amendment List Record Sheet
Issue
No.
Date
28-08-2007
Incorporated
by
AJS
Page Nos.
Amended
Reason for new issue
Draft
Document Ref. 80-330501HBKM
STTRS DOCUMENTATION
Document Number 80-330501HBKM – Issue A - Draft
Page 500 of 500

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PBE Europe as Axell Wireless 55-165704 55-165704 Cell Enhancer User Manual 80 330501HBKM

Axell Wireless 55-165704 Cell Enhancer 80 330501HBKM

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