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PA-STARNet
System Preventive Maintenance Plan
CONTENTS
Topic
Section
Page
Towers
1.0
1
Tower Structural Maintenance Inspections
1.1
2
Inspection and Measurements
1.2
2
Field Mapping
1.3
2
Mapping of Structural Components
1.4
2
Self Supporting Latticed Structures
1.4.1
2
Guyed Towers
1.4.2
3
Pole Structures
1.4.3
3
Photographs of findings
1.4.4
3
Shelters
2
3
Site Shelter
2.1
3
CE3000 Enclosure
2.2
3
Emergency Generator
3
6
DC Power Plant
4
8
DC Power Plant Capacity Test
4.1
10
HVAC
5
11
Cell On Wheels (COW)
6
12
OpenSky
7
13
Microwave
8
14
Cell Sites
9
17
Cell Box Maintenance
10
19
1.0 Towers
1.1 Tower Structural Maintenance Inspections
Towers shall be inspected in accordance with the critera as specified in EIA/TIA-222,
current version. All guyed towers shall be inspected within three (3) years of their last
inspection. All self-supporting towers and pole structures (monopoles) shall be inspected
within five (5) years of their last inspection. Inspections shall be scheduled based on the
current list of inspections and dates provided by the Commonwealth.
1.2 Inspection and Measurements
Tower alignment shall be measured using a transit set up on each leg at the base of the
tower. Tower Plumb and Twist measurementsshall be calculated as per the
specifications. Charts shall be submitted with the results of Plumb and Twist calculations.
Items to inspect include but are not limited to:
1. Structural condition of tower
2. Tightness of bolts
3. Tower’s finish – paint or galvinization
4. Lighting and associated hardware and wiring
5. Tower grounding
6. Antennas and transmission lines
7. All appurtenances (walkways, platforms, sensors, etc.)
8. Insulator condition (guyed towers)
9. Guy wires (condition, tension: measure and chart)
10.Guyed mast anchors
11.Concrete foundations
12.Tower alignment
13.Also: record temperature, wind speed and direction
1.3 Field Mapping
Mapping and documentation of all appurtenances shall include:
1. Antenna types
2. Antenna elevation and azimuth (if applicable)
3. Type of mounts and locations, spacing, and orientation
4. Transmission line and mounting specifics
1.4 Mapping of Structural Components
Mapping of the tower structure and its structural members shall include:
1.4.1 Self-Supporting Latticed Structures
1. Sketch of overall structure, numbering all sections
System Preventive Maintenance Plan – Rev 7
2
2. Member sizes for each section
1.4.2
1.
2.
3.
4.
5.
Guyed Towers
Structure base type
Guy anchor information
Sketch of overall structure
Member sizes for each section
Guy wire elevations, size and type
1.4.3
1.
2.
3.
4.
5.
Pole Structures
Sketch of overall structure
Configuration and height of each section
Number of sides (if multi-sided)
Port hole opening size and locations
Size of each section
1.4.4 Photographs from Inspection
1. Photographs shall be supplied in the report to document inspections of each
antenna and its mount, as well as exceptions found.
2.0 Shelters
2.1 Preventive Maintenance (PM) for site shelters
1. Perform PM as per the procedure below, which identifies the tasks that shall be
completed and the frequency of those tasks.
2. Perform any other PM tasks that may be required in the OEM manual.
3. Site-specific PM schedules shall be furnished to STARNet one month prior to the
scheduled activity.
4. Completed procedures shall be stored in hardcopy on-site for future reference.
2.2 Preventive Maintenance for CE3000 enclosures
1. Perform PM as per the procedure below, which identifies the tasks that shall be
completed and the frequency of those tasks.
2. Perform any other PM tasks that may be required in the OEM manual.
3. Site-specific PM schedules shall be furnished to STARNet one month prior to the
scheduled activity.
4. Completed procedures shall be stored in hardcopy on-site for future reference.
System Preventive Maintenance Plan – Rev 7
3
STARNet
Shelter Maintenance
Q=Quarterly S=Semi-Annual A=Annual
Site Name:
Site and Access:
Type:
Q
S
A
[ Record any deficiencies. ]
Status/Reading
Compound: Inspect compound grounds for holes, voids, washouts, etc.
Q
Access Road: Inspect Compound Road and Access Road for accessibility and service.
Q
Fencing: Inspect fence system for corrosion, damage, and proper operation of all access points.
Q
Weed control applied.
A
Tower Foundation:
Q
Shelter Foundation:
Q
Generator Foundation:
Q
Fuel Tank Foundation:
Q
Shelter Grounding
Physically inspect all ground wire connections to anchors. (Ensure ground wires firmly attached
to structure.)
Visually inspect condition of all ground wires and clamps for corrosion or damage.
If chemical note level:
Measure the grounding system potential to ground
Status/Reading
Q
Q
S
Shelter Maintenance
Status/Reading
Verify Exhaust System Performance. Adjust louvers (as necessary)
Q
Check Shelter Aluminum Filter and Screen.
S
Lights - Internal, External and Emergency
S
Fire Extinguisher: Verify inspection is current replace as needed
A
Inspect for Water Penetration
Q
Inspect interior floor tiles for discoloration and uplifting.
Q
Sweep Floor & Remove Trash
Q
Mop Floor
S
Standard Roof: Inspect roof for damage/deficiencies.
Seals, Gaskets, Caulking: Inspect and replace as needed for any Door, Wall, Floor, Ceiling and
other special openings.
Metal parts: Inspect paint and repaint when necessary
S
Smoke detector: Test for proper operation
Utilities: Inspect any installed utilities including all meters, disconnects, and conduit for
deficiencies or damage. Record any Deficiency.
Utilities - Record L1 & L2 - AC Voltage
S
S
Q
Q
Q
Tower - visually inspect from ground level:
Status/Reading
Structural deficiencies: loose or damaged members, guy wires, welds
Q
Surfaces: condition of paint, evidence of corrosion
Q
Accessable tower grounds: tightness and corrosion
Q
Foundations: deterioration and cracks
Q
Antennas, mounts, mounting hardware, transmission lines, cables, bridge, ladder
Q
Test tower lighting system operation and alarms
Q
Notes
Date:
Company Name:
System Preventive Maintenance Plan – Rev 7
Verified by:
4
STARNet
CE3000 Enclosure Maintenance
Site Name:
Site and Access
Q = Quarterly S = Semi-Annual A = Annual
Type:
Q
S
A
[ Record any Deficiencies ]
Status/Reading
Compound: Inspect compound grounds for holes, voids, washouts, etc.
Q
Access Road: Inspect Compound Road and Access Road for accessibility and service.
Q
Fencing: Inspect fence system for corrosion, damage, and proper operation of all access points.
Q
Apply weed control.
A
Tower Foundation:
Q
Generator Foundation:
Q
Fuel Tank Foundation:
Q
Status/Reading
CE3000 Grounding
Visually inspect condition of all ground wires, connections and clamps for corrosion or damage, if
chemical note level, Record Deficiency
Q
Measure the grounding system potential to ground.
S
CE3000 Shelter
Status/Reading
Inspect any door seals, gaskets, and other special openings and caulk if needed.
S
Inspect metal parts. Record Deficiency
S
Smoke detector - Test for proper operation
Utilities: Inspect any installed utilities including all meters, disconnects, and conduit for
deficiencies or damage. Record any Deficiency
Utilities - Record L1 & L2 - AC Voltage
Q
Inspect interior HVAC filters (Replace as needed or annually)
Q
Q
Q
Clean exterior HVAC filters.
S
Clean HVAC condenser coil.
A
Visual inspection of batteries for damage or leakage
Q
Visually inspect all rectifier and DC Plant alarm indicators. Confirm proper rectifier operation.
Q
Record float voltage reading of individual battery cells. (Complete DC/Rectifier Form)
Q
Rectifiers load share (Complete DC/Rectifier Form)
Q
Check torque of battery terminals.
S
Tower - visually inspect from ground level:
Structural deficiencies: loose or damaged members, guy wires, welds
Surfaces: condition of paint, evidence of corrosion
Accessable tower grounds: tightness and corrosion
Foundations: deterioration and cracks
Antennas, mounts, mounting hardware, transmission lines, cables, bridge, ladder
Test tower lighting system operation and alarms
Notes
Date:
Company Name:
System Preventive Maintenance Plan – Rev 7
Status/Reading
Q
Q
Q
Q
Q
Q
Verified by:
5
3. Emergency Generator
Maintenance shall commence only after all three of the following conditions are met:
 The Run-Stop-Remote switch is in the stop position.
 The battery charger has been disconnected from its AC source.
 The negative battery cable has been disconnected from the battery terminal.
Preventive Maintenance:
1. Visually inspect the generator for any access openings that would allow entrance of
rodents, insects, or reptiles. Seal any such openings found.
2. Perform preventive maintenance as per the procedure below, which identifies the
tasks that shall be completed and the frequency of those tasks.
3. Perform any other preventive maintenance tasks that may be required in the OEM
manual.
4. Site-specific preventive maintenance schedules shall be provided to STARNet one
month prior to the scheduled activity.
5. Completed procedures shall be stored in hardcopy on-site for future reference.
Note: Oil Specifications
Refer to the diagram below for the recommended oil viscosity grades at various ambient
temperatures. Oils will conform to the American Petroleum Institute (API) classification
SG or SH.
10W3010W40, 10W50
20W40 20W50
( 5W30
30W )
10W
20W20
40W
°F -30 -20 -10 0 10 20 302 40 50 80 70 80 90100110120
°C-34-28-23-18 -12 -7 -1° 4 10 1C 21 27 32 38 43 48
System Preventive Maintenance Plan – Rev 7
6
STARNet
Generator Maintenance
Q = Quarterly S = Semi-Annual A = Annual
Site Name:
Type:
Q
S
A
Emergency Generator
Status/Reading
Generator Starter Battery - Check Terminals and Cable Connections (Clean and Tighten as
Necessary)
Generator Start and Run Operation
Check Air Cleaner ( Clean or Replace as Necessary )
Check Engine Oil Level
Change Engine Oil and Filter.
Inspect Coolant Hoses and Clamps
Check Generator Controls.
Flush Cooling System.
Check Radiator Coolant Level
Check Coolant - Anti-Freeze Protection.
Check Distributor Cap, Rotor, Spark Plugs, Wires, Replace as needed.
Check Governor Linkage
Drain Exhaust Condensate Trap.
Adjust Drive Belt Tension.
Inspect Spark Plugs and Replace as Necessary.
Generator Frequency (Hz)
Generator L1/L2 Record Voltage Under Load
Generator Total Run Time
Permanent Power/ATS: ( Automatic Transfer Switch )
Test ATS for proper operation With Site Load by disconnecting Utility Power
Verify commercial power fail alarm
Fuel Systems Refueling
Check Propane Fuel Level at Tank: Record Reading of Tank Gauge.
Check Propane Fuel Monitor Level: Record Monitor Reading.
Check Diesel Fuel Level: Record Reading.
50% or Lower Fuel Readings: Notify the NOC to schedule refueling.
Inspect All components of the fuel system for Leaks and Damage
Notes
Q
Q
S
Q
A
Q
Q
A
Q
S
A
S
Q
A
A
Q
Q
Q
Status/Reading
Q
Q
Status/Reading
Q
Q
Q
Q
Q
Note 1
Note 2
Note 3
Date:
Company Name:
System Preventive Maintenance Plan – Rev 7
Verified by:
7
4. DC Power Plant
Preventive Maintenance:
1. Perform preventive maintenance as per the procedure below, which identifies the
tasks that shall be completed and the frequency of those tasks.
2. Perform any other preventive maintenance tasks that may be required in the OEM
manual.
3. Site-specific preventive maintenance schedules shall be provided to STARNet one
month prior to the scheduled activity.
4. Completed procedures shall be stored in hardcopy on-site for future reference.
STARNet
DC Power Plant Maintenance
Q = Quarterly S = Semi-Annual A = Annual
Site Name:
Type:
Q
S
A
Shelter Maintenance
Status/Reading
Visual inspections of batteries for damage or leakage.
S
Clean or Replace Straps As Needed
S
Visually inspect all rectifier and DC Plant alarm indicators. Confirm proper rectifier operation
S
Confirm the battery terminals are torqued to the OEM specifications. If needed, torque to spec.
A
Record float voltage reading of individual battery cells. (Complete DC/Rectifier Form)
S
Rectifiers load share (Complete DC/Rectifier Form)
S
Total site current (Amps)
Q
Number of rectifiers, make and model
S
Notes
Note 1
Note 2
Note 3
Date:
Company Name:
System Preventive Maintenance Plan – Rev 7
Verified by:
8
DC Power Plant Maintenance (continued)
DC Battery/Rectifier Readings
Site Name:___
Battery System
Cell 1
Cell 2
Cell 3
Cell 4
Cell 5
Cell 6
Cell 7
Cell 8
Cell 9
Cell 10
Cell 11
Cell 12
Cell 13
Cell 14
Cell 15
Cell 16
Cell 17
Cell 18
Cell 19
Cell 20
Cell 21
Cell 22
Cell 23
Cell 24
Battery Manufacturer:_____________ AMP Hr__________
Required Voltage
2.25
2.25
2.25
2.25
2.25
2.25
2.25
2.25
2.25
2.25
2.25
2.25
2.25
2.25
2.25
2.25
2.25
2.25
2.25
2.25
2.25
2.25
2.25
2.25
Float Voltage
54.0
Equalized Voltage
55.2
Rectifier System
Rectifier 1
Rectifier 2
Rectifier 3
Rectifier 4
Rectifier 5
Rectifier 6
Float Voltage
Voltage Reading
Float Current
Rectifier 7
Date:
Manufacturer:
Verified by:
System Preventive Maintenance Plan – Rev 7
9
4.1 DC Power Plant Capacity Test (high-profile sites only)
Battery plants for high profile sites shall be load tested every five (5) years. The
scheduling of load testing shall be the responsibility of the contractor, but the contractor
shall work with STARNet to identify and test those sites which have gone the lonest
without testing or have experienced anomolies worth investigating.
Perform the capacity test procedure as follows:
1. Equalize the batteries for 24 hours at the recommended voltage. (Consult
manufacturer documentation for recommended equalization voltage.)
2. Return the batteries to float charge for a minimum of 3 days (maximum of 30 days)
prior to the capacity test.
3. Measure and record the individual battery/cell float voltage.
4. Check battery connections to ensure proper resistance readings.
5. Check the temperature of several batteries to obtain an average battery temperature.
6. Disconnect the charging source.
7. Connect the load bank to the battery with the load bank off.
8. Start a timer and turn the load bank on.
9. Adjust the load bank to the appropriate discharge current. Maintain a constant
discharge rate.
10. Record the individual battery or cell voltage at the beginning, regular intervals, and at
the end of the test, with a minimum of 5 sets of readings.
11. Maintain the discharge rate until the voltage drops to a value equal to the specified
minimum volts per cell times the number of cells.
12. At the conclusion of the test, determine the battery capacity.
Battery Capacity Calculation
The equation below is used to determine the battery system capacity.
C = { Ta ÷ ( Ts × Kt ) } × 100
C is the capacity.
Ta is the actual test time to the specified minimum volts per cell value.
Ts is the rated time to the specified minimum volts per cell value.
Kt is the correction factor for the battery temperature at the start of the test.
System Preventive Maintenance Plan – Rev 7
10
5. HVAC
Preventive Maintenance:
1. Perform preventive maintenance as per the procedure below, which identifies the
tasks that shall be completed and the frequency of those tasks.
2. Perform any other preventive maintenance tasks that may be required in the OEM
manual.
3. Site-specific preventive maintenance schedules shall be provided to STARNet one
month prior to the scheduled activity.
4. Completed procedures shall be stored in hardcopy on-site for future reference.
STARNet
HVAC Maintenance
Q = Quarterly S = Semi-Annual A = Annual
Site Name:
Type:
Q
S
A
Shelter Maintenance
Status/Reading
Verify shelter thermostat temperature is set to 72 F.
Q
Verify operation of lead/lag control.
Q
Verify operation of HVAC system using thermostat and thermometer.
Q
Check HVAC air filters
S
Calibrate all safety controls, temperature and pressure controls, etc.
S
Clean system components such as coil surfaces, fan blades, and drain pans.
S
Align belt drives, drive couplings and fan fins (if applicable).
S
Inspect outdoor condenser coil and cabinet air relief for obstruction. Clean with commercial
solvent as needed.
Inspect and Lubricate the direct drive evaporator motor, blower motor, and fan forced heater
motor, bearings front and rear with proper oil.
Clean exterior filters.
S
S
S
Change interior filters. ( as needed or annually )
A
Clean condenser coil.
A
Notes
Note 1
Note 2
Note 3
Date:
Company Name:
System Preventive Maintenance Plan – Rev 7
Verified by:
11
6. Cell On Wheels (COW)
Mandatory maintenance:
 Every COW will be maintained in a manner as to be service ready at all times.
Quarterly maintenance:
1. Test and record battery voltage.
2. Charge batteries as required.
3. Check and maintain tire pressure.
4. Check hydraulic fluid level; check valves for binding and sticking.
5. Start and check generator voltage.
6. Deploy outriggers, level unit.
7. Erect mast to full height.
8. Check strobe light for proper operation.
9. Check antenna rotator for proper operation.
10.Perform ISTP on mounted cell boxes to assure correct functionality
11.Perform OpenSkyPM (refer to PM sheet section 7)
12.Check unit throughout for worn, kinked, or defective parts.
13.Lube appropriately.
14.Check toolbox for proper inventory.
15.Maintain vehicle/unit log of all service performed.
Semi Annual maintenance:
1. Change engine oil and fuel filters on generators.
2. Lubricate chassis on truck-mounted unit.
System Preventive Maintenance Plan – Rev 7
12
6. OpenSky
The following maintenance shall be performed semi-annually, with all documentation stored on site for future reference.
PA OpenSky - RF Maintenance Form
Site Name:
Date:
Technician:
Service Monitor Model:
Service Monitor Serial No:
Service Monitor Cal Date:
Base Station Performance Data
DCX #
Channel #
RF TX
Frequency
MHz
1A
1B
1C
1D
1E
1F
1G
RF RX
Frequency
MHz
12dB
Sinad
(Local)
dBm
TX Freq Error
Hz
Transmit
Deviation
KHz
HPA Power
Out
dBm
Power Out
-57 Port
dBm
HPA Power
Setting @DCX
dBm
TX Power VSWR
Watts
-45.0000
-45.0000
-45.0000
-45.0000
-45.0000
-45.0000
-45.0000
OpenSky Operational Testing
Base station DCX #
Radio Test Verification
PASS
1A
1B
1C
1D
1E
1F
1G
TTA/Antenna Performance Data
FAIL
TTA Operation
Check
TTA Voltage
Reading
TTA Current
Reading
Combined
Power Out
-57 Port
Combined Rev
TX Power
VSWR
Combined Fwd
TX Power VSWR
Fail/Pass
Volts
Amps
dBm
Watts
Watts
Notes/Corrections
Note 1
Note 2
Note 3
8. Microwave
Preventive Maintenance:
1. Perform preventive maintenance as per the procedure below on a semi-annual basis.
2. Completed procedures shall be stored in hardcopy on-site for future reference.
STARNet - Microwave
Site Name:
Technician:
Far End Site:
Power Meter Model:
ELMC Address:
Power Meter Serial:
Data Rate
Power Meter Cal Date:
TX Frequency:
Frequency Counter Model:
RX Frequency:
Frequency Counter Serial:
Date:
Frequency Counter Cal Date:
Section 1: Power Supply Voltages
Item
Measure at
Rack Supply
PDU Input
VDC
PS +10.5V
PS +10.5V TP
VDC
PS +12V
PS +12V TP
VDC
PS -5V
PS -5V TP
VDC
PS -12V
PS -12V TP
VDC
PA +10.5V
PA +10.5V TP
VDC
System Preventive Maintenance Plan – Rev 7
A SIDE
14
B SIDE
Ref
Section 2: Microwave TX Alignment
Before Adjustment
After Adjustment
A SIDE
A SIDE
Item
Measure at
TX LO Frequency (Labeled)
Shown on Label
B SIDE
MHz
TX LO Frequency Measured
TX XTAL MON
MHz
TX Reference (Expected) (No PA only)
Shown on Label at TX RF MON
dBm
TX Output Level (No PA only)
TX RF MON (± .5dB)
dBm
PA Reference (Expected)
Shown on Label at PA RF MON
dBm
PA Reference (Measured)
PA RF MON (± .5dB)
dBm
TX PWR MON Voltage
TX PWR MON
VDC
PA DC MON Voltage ( If Installed )
PA DC MON
VDC
PA Power Top of Rack
Input to TX Switch - Filter I.L.
dBm
Run PWR Calibrate Procedure
USI
Y/N
Check I&Q Carrier Null
TX RF MON (Ref - 30dB)
Y/N
Section 3: Microwave RX Alignment
Item
Measure at
RX LO Frequency (Labeled)
Shown on Label
MHz
RX LO Frequency (Measured)
RX XTAL MON TP
MHz
Check DS3 Radio DADE
DS3 ALIGN
Y/N
Check DS3 Line DADE
DS3 ALIGN 1,2,3
Y/N
RX AFC MON Voltage
RX AFC MON TP
VDC
RX EYE MON Voltage
RX EYE MON TP
VDC
RX RSL MON Voltage
RX RSL MON TP
VDC
RSL (Measured)
Filter Output - Filter I.L.
dBm
RSL (Calculated)
Path Data Sheet
dBm
RSL Indicated on USI
USI
dBm
System Preventive Maintenance Plan – Rev 7
A SIDE
15
B SIDE
Ref
B SIDE
Ref
Section 4: MCS-11 Alarming
Site Tech:
NOC Tech:
Verify all active alarm points are tested with the NOC.
Comments:
System Preventive Maintenance Plan – Rev 7
16
9. Cell Sites
Cell sites have been designed to require minimum maintenance; however, it is important
to provide some level of inspection and assurance that the equipment is maintained in a
ready state of operation. The following preventive maintenance shall be conducted on an
annual basis.
Site Name:
SITE##
Status/Reading
Cell Site Information
Installation Type: (Tower/Pole/Building/Other)
Connectivity Type: (ISM/Telco/T1/4.9 GHz)
Master Cell Site:
Cell Site Model Number:
Cell Site Serial Number:
Battery Box Model Number:
Battery Box Serial Number:
Antenna Systems Visual inspection
Line sweep
ISM/4.9 GHz Antenna(s) visual inspection
Cable/Weather Proofing Condition visual inspection
Equipment/Site Condition
Cell Box Condition
Battery Box Condition
Compound Condition
Equipment/Site Grounding
Telco Demark Condition (If Applicable)
Tower Visual Inspection (If Applicable)
Pole Condition (If Applicable)
Alarm Reporting/Testing
AC Alarm
Rectifier Alarm
Door Alarm
Tower Light Alarm (If Applicable)
Battery Transfer Test
OpenSky
Base Station (DCX) LED Visual Check
Radio Registers on Site / Radio Operational
Notes
Note 1
Note 2
Note 3
Date:
Verified by:
Full Name
Site Name:
SITE##
Battery Voltage Readings (V)
Required Voltage
Battery 1
Battery 2
Battery 3
Battery 4
String 1 (Battery 1 & 2)
String 2 (Battery 3 & 4)
Total Voltage
With Battery Load
Initial Voltage
1 Min
15 Min
30 Min
12
12
12
12
Current Readings (I)
Current with Utility Power
String 1 (Battery 1 & 2)
String 2 (Battery 3 & 4)
Notes
Note 1
Note 2
Note 3
Date:
Verified by:
Full Name
PA OpenSky – Cell Box RF Maintenance Form
Site Name:
Date:
Technician:
Service Monitor Model:
Service Monitor Serial #:
Service Monitor Cal. Date:
Cell Box Performance Data
Channel #
RF TX
Frequency
MHz
RF RX
Frequency
MHz
-45.0000
12 dB
SINAD
dBm
20 dB
SINAD
dBm
Operational Testing
Radio Test Verification
PASS
FAIL
TTA
Operation
Check
PASS/FAIL
TX
Frequency
Error
Hz
Duplex
Power
Out
dBm
TX
Power
VSWR
Watts
TTA/Antenna Performance Data
TTA
TTA
REV TX
Voltage
Current
Power
Reading
Reading
VSWR
Volts
Amps
Watts
FWD TX
Power
VSWR
Watts
Notes / Corrections
Note 1:
Note 2:
Note 3:
Date:
System Preventive Maintenance Plan – Rev 7
Verified by:
18
Transmit
Deviation
KHz
10. Cell Box Maintenance
Maintenance Instructions: common to both models:
With site still on air, have ready:
 Computer in Hyperterm (data bits 8, Parity none, stop bits 1, 19200 bps) serial
cable with null modem connector.
 Service monitor with Tx frequency set for Tx test. RF and Sinad test cables ready.
 Watt Meter with 100 watt element and cable.
 Remove side cover (new model, nuts) (old model, straight blade spring bolts)
 New model open service door (straight blade spring bolts)
1. Before disabling cell, observe Tx Spectral Mask on service monitor.
2. Connect computer with Hyperterm and proceed to Analog Testing Mode.
3. Disable RF transmitter (Toggle switch) (new model in service door) (old model right
side)
4. Connect service monitor RF cable to duplexer output. Some cells do not have
duplexer, connect to bottom of silver tube on right.
5. Enable RF transmitter for Tx frequency test. Measure frequency error and power
in dbm.
6. Disable transmitter, connect service monitor Sinad cable to BNC port (new model
in service door) (old model, remove jumper and connect to “Q” connector on
bottom of left black vertical card just above “terminal”)
7. Conduct receiver sensitivity test. Measure 12db and 20db Sinad. After test reconnect “Q” jumper on old model.
8. Remove service monitor RF cable from duplexer and connect watt meter in line.
9. Enable RF transmitter. Measure forward and reflected power.
10. Disable RF transmitter, remove watt meter, re-connect antenna.
11. Return Cell to Opensky mode with hyperterm.
12. Secure all doors.
System Preventive Maintenance Plan – Rev 7
19
#2 Hyperterm Terminal, new cell box.
#2 Hyperterm Terminal, old cell box.
#3 New cell box, Tx Disable Switch
#3 Old cell box, Tx Disable Switch
#4 New cell box, duplex antenna connection.
System Preventive Maintenance Plan – Rev 7
20
#4 Old cell box, duplex antenna connection.
antenna connection.
#4 New cell box, no duplex,
#6 New cell box, Sinad port.
#6 Old cell box, Sinad port.
System Preventive Maintenance Plan – Rev 7
21