Cisco Systems 2484-B8415-R1 User Manual

Download

Chapter 6 Installation

PRELIMINARY

6.3.6 Rooftop Antenna Placement Tool

Reference: Rooftop Antenna Placement Tool

This is a picture of the worksheet in the Antenna Placement Tool for a quick visual identification

Figure 6-17); this appendix does not include the entire tool. Please use the electronic copy of the tool to

datafill the site information. This form can be found on the following LiveLink site:

https://tools.cisco.com/cws/livelink?func=ll&objid=4353291&objaction=browse

The Tool is updated periodically. If you are not sure that you have the latest version, please contact Cisco Technical Services and request that the latest version of the tool be sent to you.

Figure 6-17 Rooftop Antenna Placement Tool

6.3.6 Rooftop Antenna Placement Tool

OL-19519-01

BWX 8415 Basestation Installation and Commissioning Guide

6-17

6.3.7 Set the Downtilt

Based on coverage objectives determined by previous RF planning, the AU may need adjusting upward or downward once mounted on the pole, tower, roof, building, or other structure. The panel antenna has a -6° built-in electrical downtilt.

You will use an inclinometer to read the mounted position and to determine what adjustments, if any, need to be made. For example, if the inclinometer reads +2° (uptilt) and you are mounting an AU, the resulting beam has a –4° downtilt (

Figure 6-18 Downtilt Adjustment Example

Chapter 6 Installation

PRELIMINARY

Figure 6-18).

 The inclinometer reads +1 ° (uptilt)

 The inclinometer reads +1 ° (uptilt)  The panel antenna has a -6 ° built in

 The panel antenna has a -6 ° built in

electrical downtilt

 The resulting beam has a -5

The downtilt can be adjusted per the assembly shown in Figure 6-19

Electr ical –6°

–

° downtilt

6-18

BWX 8415 Basestation Installation and Commissioning Guide

OL-19519-01

Chapter 6 Installation

6.3.8 Antenna Orientation

PRELIMINARY

Figure 6-19 Downtilt Adjustment Assembly

Downtilt Adjustment Bracket Bolts

6.3.8 Antenna Orientation

The magnetic declination, which is the angular difference between observed magnetic north on a compass and geographic (or “true”) north, shifts from year to year. Panel antennas must be oriented appropriately as required by the RF plan.

Adjustments that will need to be made are based on the Magnetic Declination Chart (Figure 6-20), which provides values to correct the compass reading and determine the true geographic East. Always check for the latest chart information, which may be found at the following web address:

www.thecompassstore.com/decvar.html.

Since this is not the year 2000 any more, you will want to check this reference chart to learn how your magnetic declination may have shifted since then. Notice that the map measures annual shifts in minutes. Since it takes 60 minutes to equal 1 degree, if you notice that your location has a declination shift of 5 minutes per year, this means it will be another 12 years before your declination adjustment changes by one whole degree.

OL-19519-01

BWX 8415 Basestation Installation and Commissioning Guide

6-19

6.4 Power and Ground Cabling

Figure 6-20 Magnetic Declination Chart – Example

PRELIMINARY

World Magnetic Declination Chart - Year 2000

 Use a compass to determine the magnetic East

Chapter 6 Installation

Unit:Degrees

 Use a Magnetic Declination chart to correct the compass reading

and determine the true geographic East

Note It is better to convert the “true” azimuth (which way the antenna should point in the horizontal plane) as

required by the RF Plan to the magnetic value that will be read on the compass before sending the installer to the field. This way the installer will go by the reading on the compass, not having to worry about magnetic declination corrections.

6.4 Power and Ground Cabling

6.4.1 Overview

The BS will operate at an input voltage of - 48 V DC, as measured at the input terminals to the BS.

General power and grounding information was covered in Chapter 5, “Pre-installation.” Please refer there for information about power and ground cabling.

6.4.2 System Ground Cabling

6-20

The BS must be grounded prior to connecting power.

Warning

BWX 8415 Basestation Installation and Commissioning Guide

This equipment must be externally grounded using the supplied ground wire before power is applied. Contact the appropriate electrical inspection authority or an electrician if you are uncertain that suitable grounding is available.

Statement 366

OL-19519-01

Chapter 6 Installation

6.4.2 System Ground Cabling

PRELIMINARY

Warning

Note It is strongly recommended that no switch or disconnect device be installed in the ground cabling.

Read the installation instructions before connecting the system to the power source.

When installing or replacing the unit, the ground connection must always be made first and disconnected last.

Statement 1046

Statement 1004

In all installations and when powering the BS, you must follow these instructions to properly ground the BS:

Step 1 Strip the insulation as required for the grounding lug.

Step 2 Use the appropriate crimping tool to crimp the supplied 6-AWG grounding lug to the bare copper ground

wire.

Step 3 Apply heat shrink to the grounding lug.

Step 4 Open the electrical joint compound (supplied), and apply a liberal amount over the metal surface where

the grounding connectors are located.

Step 5 Connect the ground cable to the BS ground using the supplied nuts with lock washers. Tighten the nuts

to 48 in-lbs. (5.4 Nm). Refer to

Figure 6-21.

Figure 6-21 Ground Cable Installed

Step 6 If necessary, strip the other end of the ground wire, and connect it to a reliable earth ground such as a

grounding rod or an appropriate grounding point on the pole/mast that is grounded.

OL-19519-01

BWX 8415 Basestation Installation and Commissioning Guide

6-21

6.4.3 System Power Cabling

PRELIMINARY

6.4.2.1 Lightning Protection

Lightning protection information is covered in Chapter 5, “Pre-installation.” Please review that section before continuing with the installation process.

6.4.2.1.1 Surge Arrestors

The BWX 8415 Basestation contains primary lightning protection on the GPS cable and the -48V power cable. A DC primary lightning protector is also recommended at the output of the main power supply.

6.4.3 System Power Cabling

Install the power cable to the power connectors on the RU. Always refer to the regulatory standards for power and grounding.

Chapter 6 Installation

Warning

Read the installation instructions before connecting the system to the power source.

A readily accessible two-poled disconnect device must be incorporated in the fixed wiring.

1022

Connect the unit only to DC power source that complies with the safety extra-low voltage (SELV) requirements in IEC 60950 based safety standards.

Statement 1033

Statement 1004

Statement

Follow these instructions to properly connect the power cabling to the BS:

Step 1 If using insulated 6-AWG or 8-AWG copper wire, strip the insulation as required for the power lugs.

Step 2 Use the appropriate crimping tool to crimp the supplied 6-AWG or 8-AWG power lugs to the bare copper

wires.

Step 3 Apply heat shrink to the power lugs.

Step 4 Open the electrical joint compound (supplied), and apply a liberal amount over the metal surface where

the power connectors are located.

Step 5 Connect the power cable leads (2 RTN and 2 -48V) to the BS using the supplied nuts with lock washers.

Tighten the nuts to 48 in-lbs. (5.4 Nm). Refer to

Figure 6-22.

6-22

BWX 8415 Basestation Installation and Commissioning Guide

OL-19519-01

Chapter 6 Installation

6.5 Fiber-Optic Cabling

PRELIMINARY

Figure 6-22 Power Cable Leads Installed

6.5 Fiber-Optic Cabling

Warning

Step 1 Ensure that the power source has been disconnected from the BS.

Step 2 Attach the Amphenol connector on the fiber-optic cable to the fiber-optic port on the BS and hand

Class 1 Laser product.

General fiber cable information was covered in Chapter 5, “Pre-installation.” Please refer to

5.8 Fiber-optic Cable Selection and 5.11 Confirm AAA, BWG, and Backhaul Network Availability for

information about the required fiber-optic cable and the backhaul connectivity.

To connect a fiber-optic cable to the access point, follow these steps:

tighten.

Statement 1008

6.6 Complete the BWX 8415 Installation

6.6.1 Install the I/O cable Cover

Perform the following steps to install the I/O cable cover.

OL-19519-01

Step 1 Install the I/O cable cover over the power, ground, fiber-optic, and GPS cable connections on the BWX

8415. Refer to

Figure 6-23.

BWX 8415 Basestation Installation and Commissioning Guide

6-23

6.6.2 Test the Backhaul Connection

Chapter 6 Installation

PRELIMINARY

Figure 6-23 I/O Cable Cover

Step 2 Tighten the screws on the I/O cover securely to prevent water from leaking into the unit.

6.6.2 Test the Backhaul Connection

If required in the Responsibility Assignment Matrix (RAM) or project plan, test the backhaul to the customer demarcation point.

6-24

BWX 8415 Basestation Installation and Commissioning Guide

OL-19519-01

Chapter 7 Commissioning

PRELIMINARY

7.7 Calibration

7.7.1 What it Means to Calibrate

Performing a calibration on the BS detects the phase differential between the antenna elements and matches the output power across all antenna elements in the BWX 8415 Antenna Unit. On a new installation, the calibration procedure should be performed at least 3 times to verify consistency of the returned values. Ensure that the BS has been powered on, with the Power Amplifiers on, for at least 15 minutes to allow them to warm up and stabilize.

Caution Do not attempt to calibrate the basestation while performing a software upgrade or downgrade.

Calibrating during an upgrade or downgrade can interfere with the loading of files into system components and may produce faults or other problems.

7.7.2 Types of Calibration

7.7 Calibration

Assuming the BS has been powered up and left on for at least 15 minutes, and that all alarms have been cleared, you can now run a calibration. There are 2 types of calibration:

• Full Calibration

• Online Calibration

Typically, only the Full Calibration is done manually by the service provider. For the initial installation, the Full Calibration will be run at least 3 times.

Note Cisco recommends that a Full Calibration be performed on each BS, at least once every 4 weeks.

When a Full Calibration is invoked, the BS is out of service for about 2 minutes. After installation, commissioning, and acceptance testing, Cisco recommends that a Full Calibration be run every 4 weeks during off hours. During Full Calibration the Digital card pre-calibrates itself and the BS closes any ongoing sessions with modems that are currently registered. The transmit gain in the IF section is adjusted for each of the 8 transmit paths individually so that the level of power delivered at the base of each antenna element is exactly the value specified by the Antenna Power parameter.

The receive gain is adjusted for each of the 8 receive paths individually so that when the level of power specified by the Rx Sensitivity parameter is received at the base of each antenna element, it will correspond to the maximum voltage that the card can handle. If the card is unable to adjust either the TX gain or the RX gain for a particular antenna element, both gain values are set to zero (0) and this antenna element is taken out of service.

Then, all paths are turned on using the gain settings just determined by the calibration, and the phase and amplitude changes introduced in each sub-carrier between the BS and the base of each antenna path are determined, both in the transmit and receive directions. This is done with power applied to all antenna paths and using the TX and RX gains in the card, as determined in the previous step, in order to achieve the power levels specified by the Antenna Power and Rx Sensitivity parameters.

OL-19519-01

Once the new phase change values are determined, they are compared with previous results kept in the BS’s memory. If there is a large discrepancy with the previous results, an alarm is generated and the BS uses the most likely correct set of values. Otherwise, the new results are sent to the EMS and kept in the BS’s memory for future comparisons.

BWX 8415 Basestation Installation and Commissioning Guide

7-37

7.7.3 Calibration Procedure

When the BS is calibrated, the measured values are stored in the BS and then reported to the EMS to be stored under Air Interface > Layer 1. The Digital card pre-calibration values are placed in the General tab. The TX and RX gain values are placed in the Antenna Table.

7.7.3 Calibration Procedure

Before you can calibrate, ensure the following requirements are met:

• The BS must have been previously added and configured in the EMS database

• The BS must be powered up for at least 15 minutes, booted properly, stable (not resetting) and all

alarms cleared before running the calibration

• Select the BS on the EMS CAM by clicking on the BS

Note The BS must be provisioned before you can calibrate. If the BS is not provisioned, refer to

7.6.3 Provision the BWX 8415 Basestation for the steps to perform the provisioning.

Step 1 Select Air Interface > Layer 1 > Layer 1 Tables.

Step 2 Click on Show Configuration.

Chapter 7 Commissioning

PRELIMINARY

Step 3 From a terminal emulation program type in the command, caldebugon and hit <Enter> (Figure 7-42).

Figure 7-42 Show Configuration

bts-221 [Active]% caldebugon

bts-221 [Active]% caldebugon bts221 [Active]%

bts221 [Active]%

Mak e sure you t ype " c al de b ugof f

when you are done with the calibration!!!

Step 4 With the Antenna Table tab selected, click on Calibrate

Terminal Emulation Program

7-38

Step 5 Select Full Calibration and Calibrate and then click on Yes . Refer to Figure 7-43.

BWX 8415 Basestation Installation and Commissioning Guide

OL-19519-01

Chapter 7 Commissioning

PRELIMINARY

Figure 7-43 Full Calibration

7.7.3 Calibration Procedure

Click on the “ Antenna





Ta ble”tab

Click on “Calibrate”















Se le ct “ Full













Calibration” and

click on “Calibrate”

Click on “Yes”













Note If you forgot to provision the BS in the EMS database, you will see the error shown in Figure 7-44. Click

on Ok and refer to 7.6.3 Provision the BWX 8415 Basestation.

Figure 7-44 Provision Error

When the calibration is complete, the Full Calibration window changes and displays the finish time and the result. Note that the result of “Succeeded” means that the calibration finished, not that the calibration results were successful (

Step 6 Click on Close to close the Full Calibration window

Figure 7-45).

OL-19519-01

BWX 8415 Basestation Installation and Commissioning Guide

7-39

7.7.3 Calibration Procedure

Figure 7-45 Calibration Results

Step 7 Click on Show Configuration to see if the calibration is successful. In the EMS CAM highlight the BS

and check the Antenna Table transmit and receive gain values (

Chapter 7 Commissioning

PRELIMINARY

Figure 7-46).

Note A value of zero indicates that a proper value for the gain for that path (either in the TX or Rx direction)

could not be found.

Figure 7-46 Check Antenna Table Values

7-40

Step 8 Check the calibration results for the Transmit and Receive Gain Values.

Note The BS system has a Transmit Gain value range of 1-64 and a Receive Gain value range of either 115-255

or 0-140. When evaluating calibration gain words, it is important to remember that the size of the value does not determine if a problem exists.

BWX 8415 Basestation Installation and Commissioning Guide

OL-19519-01

Chapter 7 Commissioning

7.7.3 Calibration Procedure

PRELIMINARY

To determine if a problem exists, use the following information:

• At the BS console, look at the cal error message. The calibration should pass without any errors.

• Look at the Transmit Gain values. They should be relatively close to each other (values: 1 - 64).

• Find the median Transmit Gain value. The median is the value that falls in the middle of the

lowest to highest values. Example: If you ordered the values 9, 8, 8, 7, 7, 6, 5, 4, 3, 3, 3, 2, 1, 1….the median would be 5 because 5 falls midway from the top or bottom of the ranked values.

• Compare all the other Transmit Gain values to the median value. All Transmit Gain values

should be within a plus or minus range of 6 units from the median. Therefore, if the median is 50, values from 44 to 56 would be acceptable.

• Look at the Receive Gain values. (values: 115 – 255)

• Find the median Receive Gain value.

• Compare all the Receive Gain values to the median value. All Receive Gain values should be

within a plus or minus range of 8 units from the median.

Criteria: Transmit Gain Words +/- 6 from the median value Receive Gain Words +/- 8 from the median value

If this is a new installation (or a problem is found), repeat the calibration procedure (Steps 4-8). This will be the second of three calibrations you will perform. Click on the Configure button for this BS, and a new window appears (

Figure 7-47). The main “Show” window still shows the results of the first

calibration. The Configuration window shows the values corresponding to the second calibration.

Figure 7-47 Second Calibration (if needed)

OL-19519-01

BWX 8415 Basestation Installation and Commissioning Guide

7-41

7.7.3 Calibration Procedure

Compare the values of both calibrations. The corresponding results should be within +/- 3 units. Close the Configuration window, and click on Show Configuration to move the second calibration values into the main window.

Next, perform a third calibration (Steps 4-8) and compare the results with the second calibration values. An example of successful calibration results is provided in results with errors is shown in Figure 7-49.

Figure 7-48 Example – Successful Calibration

Data received from Layer1:

antenna txGain rxGain

antenna txGain rxGain 0 18 67

0 18 67 1 15 67

1 15 67 2 17 63

2 17 63 3 18 71

3 18 71 4 15 68

4 15 68 5 17 70

5 17 70 6 17 63

6 17 63 7 16 67

7 16 67

carrierId antenna txCalWeightX txCalWeightY rxCalWeightX rxCalWeightY rxSNR txSNR

carrierId antenna txCalWeightX txCalWeightY rxCalWeightX rxCalWeightY rxSNR txSNR 0 0 32.0751 1167.99 8929.38 57776 14.8713 -58.0311

0 0 32.0751 1167.99 8929.38 57776 14.8713 -58.0311 0 1 -51.7158 1165.44 -17116.8 -56872.4 14.6449 -49.6681

0 1 -51.7158 1165.44 -17116.8 -56872.4 14.6449 -49.6681 0 2 712.152 858.821 25107.3 53970 14.9417 -65.6772

0 2 712.152 858.821 25107.3 53970 14.9417 -65.6772 0 3 970.448 649.556 2988.24 -57892.1 14.7349 -60.3216

0 3 970.448 649.556 2988.24 -57892.1 14.7349 -60.3216 0 4 -144.55 1162.05 -31553.2 -48341.8 14.5399 -52.7438

0 4 -144.55 1162.05 -31553.2 -48341.8 14.5399 -52.7438 0 5 -1152.3 188.353 9726.92 58129.3 14.7198 -56.5888

0 5 -1152.3 188.353 9726.92 58129.3 14.7198 -56.5888 0 6 671.034 -944.873 16581.7 55125.9 14.4144 -61.5753

0 6 671.034 -944.873 16581.7 55125.9 14.4144 -61.5753 0 7 -1037.14 -522.104 -14678.7 56342.4 14.4625 -59.1302

0 7 -1037.14 -522.104 -14678.7 56342.4 14.4625 -59.1302 1 0 1.413 1165.16 7420.12 58477.6 17.5769 -62.3292

1 0 1.413 1165.16 7420.12 58477.6 17.5769 -62.3292 1 1 -15.6843 1166.71 -14542.4 -56266.7 17.8756 -55.5523

1 1 -15.6843 1166.71 -14542.4 -56266.7 17.8756 -55.5523

Chapter 7 Commissioning

PRELIMINARY

Figure 7-48. An example of calibration

.………………………………………..

23 0 13.7061 1155.41 17919.3 56372.7

23 0 13.7061 1155.41 17919.3 56372.7 23 1 -110.214 1151.74 -23078.1 -53293.6

23 1 -110.214 1151.74 -23078.1 -53293.6 23 2 733.771 896.972 26636.7 52430.5

23 2 733.771 896.972 26636.7 52430.5 23 3 980.339 603.351 2003.94 -58427.1

23 3 980.339 603.351 2003.94 -58427.1 23 4 -81.1062 1142.55 -32936.2 -48987.9

23 4 -81.1062 1142.55 -32936.2 -48987.9 23 5 -1150.89 97.7796 8904.14 56862.3

23 5 -1150.89 97.7796 8904.14 56862.3 23 6 678.523 -942.895 14027.6 58078.8

23 6 678.523 -942.895 14027.6 58078.8 23 7 -1064.41 -435.91 -13482.4 55363.2

23 7 -1064.41 -435.91 -13482.4 55363.2 TX Syn Gain : 26

TX Syn Gain : 26 RX Syn Gain : 579

RX Syn Gain : 579 SC Syn Gain : 567

SC Syn Gain : 567 SC SYN Level : 8376

SC SYN Level : 8376 Cal Error : 0

Cal Error : 0

7-42

BWX 8415 Basestation Installation and Commissioning Guide

OL-19519-01

Chapter 7 Commissioning

PRELIMINARY

Figure 7-49 Calibration With Errors

Data received from Layer1:

antenna txGain rxGain

antenna txGain rxGain 0 18 67

0 18 67

0 18 67 1 15 67

1 15 67

1 15 67 2 17 63

2 17 63

2 17 63 3 18 71

3 18 71

3 18 71 4 15 68

4 15 68

4 15 68 5 17 70

5 17 70

5 17 70 6 17 63

6 17 63

6 17 63 7 0 0

7 0 0

carrierId an tenna txCalWeightX txCalWeightY rxCalWeightX rxCalWei ghtY rxSNR txSNR

carrierId an tenna txCalWeightX txCalWeightY rxCalWeightX rxCalWei ghtY rxSNR txSNR 0 0 32.0751 1167.99 8929.38 57776 14.8713 -58.0311

0 0 32.0751 1167.99 8929.38 57776 14.8713 -58.0311

0 0 32.0751 1167.99 8929.38 57776 14.8713 -58.0311 0 1 -51.7158 1165.44 -17116.8 -56872.4 14.6449 -49.6681

0 1 -51.7158 1165.44 -17116.8 -56872.4 14.6449 -49.6681

0 1 -51.7158 1165.44 -17116.8 -56872.4 14.6449 -49.6681 0 2 712.152 858.821 25107.3 53970 14.9417 -65.6772

0 2 712.152 858.821 25107.3 53970 14.9417 -65.6772

0 2 712.152 858.821 25107.3 53970 14.9417 -65.6772 0 3 970.448 649.556 2988.24 -57892.1 14.7349 -60.3216

0 3 970.448 649.556 2988.24 -57892.1 14.7349 -60.3216

0 3 970.448 649.556 2988.24 -57892.1 14.7349 -60.3216 0 4 -144.55 1162.05 -31553.2 -48341.8 14.5399 -52.7438

0 4 -144.55 1162.05 -31553.2 -48341.8 14.5399 -52.7438

0 4 -144.55 1162.05 -31553.2 -48341.8 14.5399 -52.7438 0 5 -1152.3 188.353 9 726.92 58129.3 14.7198 -56.5888

0 5 -1152.3 188.353 9 726.92 58129.3 14.7198 -56.5888

0 5 -1152.3 188.353 9 726.92 58129.3 14.7198 -56.5888 0 6 671.034 -944.873 16581.7 55125.9 14.4 144 -61.5753

0 6 671.034 -944.873 16581.7 55125.9 14.4 144 -61.5753

0 6 671.034 -944.873 16581.7 55125.9 14.4 144 -61.5753 0 7 0 0 0 0 0 0

0 7

0 7 0 0 0 0 0 0

0 7 0 0 0 0 0 0 1 0 1.413 1165.16 7420.12 58477.6 17.5769 -62.3292

1 0 1.413 1165.16 7420.12 58477.6 17.5769 -62.3292

1 0 1.413 1165.16 7420.12 58477.6 17.5769 -62.3292 1 1 -15.6843 1166.71 -14542.4 -56266.7 17.8756 -55.5523

1 1 -15.6843 1166.71 -14542.4 -56266.7 17.8756 -55.5523

.………………………………………..

23 0 13.7061 1155.41 17919.3 56372.7

23 0 13.7061 1155.41 17919.3 56372.7 23 1 -110.214 1151.74 -23078.1 -53293.6

23 1 -110.214 1151.74 -23078.1 -53293.6

23 1 -110.214 1151.74 -23078.1 -53293.6 23 2 733.771 896.972 26636.7 52430.5

23 2 733.771 896.972 26636.7 52430.5

23 2 733.771 896.972 26636.7 52430.5 23 3 980.339 603.351 2003.94 -58427.1

23 3 980.339 603.351 2003.94 -58427.1

23 3 980.339 603.351 2003.94 -58427.1 23 4 -81.1062 1142.55 -32936.2 -48987.9

23 4 -81.1062 1142.55 -32936.2 -48987.9

23 4 -81.1062 1142.55 -32936.2 -48987.9 23 5 -1150.89 97.7796 8 904.14 56862.3

23 5 -1150.89 97.7796 8 904.14 56862.3

23 5 -1150.89 97.7796 8 904.14 56862.3 23 6 678.523 -942.895 14027.6 58078.8

23 6 678.523 -942.895 14027.6 58078.8

23 6 678.523 -942.895 14027.6 58078.8 23 7 0 0 0 0

23 7

23 7 0 0 0 0

23 7 0 0 0 0 TX Syn Gain : 26

TX Syn Gain : 26

TX Syn Gain : 26 RX Syn Gain : 579

RX Syn Gain : 579

RX Syn Gain : 579 SC Syn Gain : 567

SC Syn Gain : 567

SC Syn Gain : 567 SC SYN Level : 8376

SC SYN Level : 8376

SC SYN Level : 8376 Cal Error : 80008000

Cal Error : 80008000

Cal Error : 80008000 Antenna Pow er = 15 Rx Sensitivity = 10 0 numAntenna = 7

Antenna Pow er = 15 Rx Sensitivity = 10 0 numAntenna = 7

Here is the key to

Here is the key to interpret

Both gains and all the phase

Here is the key to interpret

Both gains and all the phase

Here is the key to interpret

Both gains and all the phase

Here is the key to

the calibration error

the calibration error code

shifts for this path are set to zero.

the calibration error code

shifts for this path are set to zero.

the calibration error code

shifts for this path are set to zero.

interpret

the calibration error

Only 7 out of 8 antenna elements are

Only 7 out of 8 antenna elements are working

Only 7 out of 8 antenna elements are

Only 7 out of 8 antenna elements are working

Only 7 out of 8 antenna elements are

Only 7 out of 8 antenna elements are working

Only 7 out of 8 antenna elements are

Only 7 out of 8 antenna elements are working

Only 7 out of 8 antenna elements are

Only 7 out of 8 antenna elements are working

Only 7 out of 8 antenna elements are

Only 7 out of 8 antenna elements are working

Only 7 out of 8 antenna elements are

7.7.3 Calibration Procedure

8 0 0 0 8 0 0 0

8 0 0 0 8 0 0 08 0 0 0 8 0 0 0

8 0 0 0 8 0 0 0

8 0 0 0 8 0 0 08 0 0 0 8 0 0 0

8 0 0 0 8 0 0 0

8 0 0 0 8 0 0 08 0 0 0 8 0 0 0

8 0 0 0 8 0 0 0

8 0 0 0 8 0 0 08 0 0 0 8 0 0 0

8 0 0 0 8 0 0 0 8 0 0 0 8 0 0 0

8 0 0 0 8 0 0 0

1000 0000 0000 0000 1000 0000 0000 0000

1000 0000 0000 0000 1000 0000 0000 00001000 0000 0000 0000 1000 0000 0000 0000

1000 0000 0000 0000 1000 0000 0000 0000

1000 0000 0000 0000 1000 0000 0000 00001000 0000 0000 0000 1000 0000 0000 0000

1000 0000 0000 0000 1000 0000 0000 0000

1000 0000 0000 0000 1000 0000 0000 00001000 0000 0000 0000 1000 0000 0000 0000

1000 0000 0000 0000 1000 0000 0000 0000

1000 0000 0000 0000 1000 0000 0000 00001000 0000 0000 0000 1000 0000 0000 0000

7654 32107654 3210

SNR

SNR Problem

Problem

Problem:

Problem

Problem:

Problem

Problem:

Problem

Problem:

1stbit = Rx

bit = Tx

Rx error

Rx e rror

in antenna

element #

Rx Gain

Rx Gain SC Gain

SC Gain

SC Gain Tx Gain

TGain

Gai n

Tx Gain

TGain

Gai n

Tx Gain

TGain

Gai n

Tx Gain

TGain

Gai n

Rx Range

Rx Range TX Range

TX Range

TX Range Temp Range

Temp Range

Tx error

error

Tx error

error

Tx error

error

Tx error

error

in antenna

element #

Pre-Cal errors - A power or gain setting could not be

Pre-Cal errors - A power or gain setting could not be found th at would set the signal at the appropriate level

found th at would set the signal at the appropriate level

found that would set the signal at the appropriate level

found th at would set the signal at the appropriate level

found that would set the signal at the appropriate level

found th at would set the signal at the appropriate level

found that would set the signal at the appropriate level

found th at would set the signal at the appropriate level

found that would set the signal at the appropriate level

Pre-Cal errors - The target value is outside

Pre -Cal erro rs -

Pre-Cal errors - The target value is outside

Pre -Cal erro rs -

Pre-Cal errors - The target value is outside

Pre -Cal erro rs -

Pre-Cal errors - The target value is outside

Pre -Cal erro rs -

Pre -Cal erro rs the range of the Synthesizer card

the range of the Synthesizer card

Here is the key to

Here is the key to interpret

Here is the key to

the calibration error

the calibration error code

interpret

the calibration error

Errors durin g offlin e power

and gain tuning calibration

OL-19519-01

BWX 8415 Basestation Installation and Commissioning Guide

7-43

Cisco Systems 2484-B8415-R1 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual