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Table of Contents

1 INTRODUCTION AND OVERVIEW ..............................................................................................................3

1.1 SCOPE.............................................................................................................................................................3 1.2 PURPOSE.........................................................................................................................................................3 1.3 SURVEY SCHEDULING ....................................................................................................................................3 1.4 VERIZON BUSINESS CONTACT INFORMATION .................................................................................................3 1.5 SURVEY DOCUMENT FORMAT ........................................................................................................................3 1.6 REQUIRED ITEMS FOR THIS RFI SURVEY ........................................................................................................4

2 CHECK LIST OF ITEMS TO BE COMPLETED...........................................................................................6

2.1 CHECK LIST 1 - FOR BOTH NEW AND EXISTING SITES.....................................................................................6 2.2 CHECK LIST 2 - ADDITIONAL CHECK LIST FOR EXISTING OPERATIONAL SITES..............................................7 2.3 CHECK LIST 3 – DRAWINGS (ALL SITES) ........................................................................................................8

2.4 CHECK LIST 4 - IF RF INTERFERENCE IS DETECTED .......................................................................................8 2.5 OVERALL ASSESSMENT ..................................................................................................................................8

3 GENERAL RFI PROCEDURE .........................................................................................................................9

4 RFI AT FREQUENCY OF PROPOSED CARRIER.....................................................................................10

5 RFI WIMAX INTERFERENCE......................................................................................................................11

6 SUGGESTED RFI TEST EQUIPMENT LIST ..............................................................................................13

7 MONITORING RECEIVE SCPC ERRORS WITH AN IDIRECT MODEM............................................14

8

SITE DRAWINGS.............................................................................................................................................16

8.1 ANTENNA DRAWING ....................................................................................................................................16 8.2 HORIZON PROFILE DRAWING .......................................................................................................................16 8.3 ATTACHMENT A - ANTENNA SITE LAYOUT..................................................................................................17 8.4 ATTACHMENT B – ANTENNA OBSTRUCTIONS ..............................................................................................18 8.5 ATTACHMENT C - LIST OF OBSTRUCTIONS ...................................................................................................19 8.6 ATTACHMENT D – ON-SITE PICTURES..........................................................................................................20 8.7 ATTACHMENT E – ON-SITE SPECTRUM ANALYZER PLOTS ...........................................................................20



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1 Introduction and Overview

1.1 Scope

This RFI survey report is designed to cover the technical aspects of detecting any RFI interference.

A complete and accurate RFI survey is important for correct operation of the site. This report shouldcover most sites, however any other issues not covered in this report should also be noted onadditional pages.

The completed RFI Survey should be discussed with the customer and any on-site personnel that willbe involved with help on performing this. Any problems should be discussed and resolved beforeleaving the site. Make sure the customer understands our expectations, requirements, and plans forthe installation.

1.2 Purpose

Summary of the major items that are important to this survey, please confirm the following:

• Interference detected in the general frequency spectrum. (provide 16 Plots)

• Interference is detected at the proposed carrier frequency. (provide 8 Plots)

• Confirm if there is WiMax interference (provide 8 Plots)

• Confirming which direction the interference is coming from

• Confirming if the antenna can be moved to a new location to reduce interference.

• Confirming any alternate solutions to reducing interference

• Fully complete the Check Lists that are in section 2

1.3 Survey Scheduling

All initial coordination, communication and scheduling with the site should be done with the VerizonBusiness Project manager and not directly with the site. All clearances should be obtained first beforeplanning any site visit.

This Site Survey Report is confidential and all copies should be submitted back to the VerizonBusiness project manager or to the address on the front of this document.

1.4 Verizon Business Contact Information

If additional information is required to perform this site survey, please contact your program manageror the various Verizon Business personnel below:

SSG Plano Texas: Main Phone: 1 972-578-7100

1.5 Survey Document Format

The document is supplied in Word format; it should be edited with the relevant data and picturesinserted in Attachment E. If this is not possible please provide separately pictures in .jpg format.Sketches can also be drawn in Visio (if available), converted to a .jpg format and inserted.



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Digital photographs are required to clarify the data collected in the site survey. The minimum numberof photographs to include with this survey is about 12. The total number will depend on thecomplexity of the site and is left to the judgment of the surveyor. As a minimum, provide the followingview. Insert the photographs into this document and submit as one package.

• Photograph showing the exterior of the building from ground level.

• Photograph of the ground or roof showing where the mount will or is placed.• Picture showing where the antenna will be grounded (cold water pipe, building steel, etc.).

• Picture showing any staging areas needed for assembly or lifting of the antenna if it has to bemoved

All completed RFI site surveys will be stored on the SSG server in Plano.

1.6 Required Items for this RFI Survey

• Spectrum Analyzer, HP or suggested model Anritsu Model MS2711D (100 kHz to 3.0GHz andIncludes GPS Option for precise site location).

• LNA or LNB. Suggested Norsat C-Band LNB part number 3120. (3.4 GHz - 4.2 GHz)

• DC Block and Power Source if using an older Analyzer. (Not required with the Anritsu

MS2711D).• Terrestrial Interference Survey Horn, 18db of gain, 3.4 GHz - 4.2 GHz with WCA Adapter (Model

TISH-40 by Dawn Satellite in Picture below) & Tripod OR provide by ARRA.

• Camera (Digital Camera preferred)

• Compass and Inclinometer

• Laptop Computer for storing and adding captions to plots (technician supplied)

• RF and IF Filters for trouble-shooting existing systems with RFI interference. Suggested RF Filter7893D from MFC and IF Filter part number 9101-0007-0001 form iDirect.

Anritsu Model MS2711D Portable Spectrum Analyzer Includes GPS Option.



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Typical C-Band Horn

Dimensions of an Antenna Horn if one has to be temporally made

Terrestrial Interference Survey Horn, 18db of gain, 3.3 GHz - 4.9 GHz (Model CPR229-880 by ARRA inPicture Above)

434-1116mail

Suunto Tandem Compass Combo to determine direction and elevation angles.



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2 Check List of Items to be Completed

2.1 Check List 1 - for both New and Existing Sites

See Sections 3, 4 and 5 for Spectrum Analyzer Configuration Parameters

Customer : Site Location:

Plots Span inMHz

Frequency in GHz (L-Band *)General Spectrum

Directionto North

PicturesRequired

CheckX

1 500 3.8GHz (1.350GHz L-Band) 0 Yes

2 500 3.8GHz (1.350GHz L-Band) 45 Yes

3 500 3.8GHz (1.350GHz L-Band) 90 Yes

4 500 3.8GHz (1.350GHz L-Band) 135 Yes

5 500 3.8GHz (1.350GHz L-Band) 180 Yes

6 500 3.8GHz (1.350GHz L-Band) 225 Yes

7 500 3.8GHz (1.350GHz L-Band) 270 Yes

8 500 3.8GHz (1.350GHz L-Band) 325 Yes9 100 3.8GHz (1.350GHz L-Band) 0 No

10 100 3.8GHz (1.350GHz L-Band) 45 No11 100 3.8GHz (1.350GHz L-Band) 90 No12 100 3.8GHz (1.350GHz L-Band) 135 No

13 100 3.8GHz (1.350GHz L-Band) 180 No14 100 3.8GHz (1.350GHz L-Band) 225 No

15 100 3.8GHz (1.350GHz L-Band) 270 No16 100 3.8GHz (1.350GHz L-Band) 325 No

At the Proposed Frequency

17 20 Frequency of Proposed Carrier 0 No18 20 Frequency of Proposed Carrier 45 No

19 20 Frequency of Proposed Carrier 90 No

20 20 Frequency of Proposed Carrier 135 No21 20 Frequency of Proposed Carrier 180 No22 20 Frequency of Proposed Carrier 225 No

23 20 Frequency of Proposed Carrier 270 No24 20 Frequency of Proposed Carrier 325 No

WiMax RFI Survey

25 40 3.515GHz (1.635 GHz L-Band) 0 No26 40 3.515GHz (1.635 GHz L-Band) 45 No

27 40 3.515GHz (1.635 GHz L-Band) 90 No28 40 3.515GHz (1.635 GHz L-Band) 135 No

29 40 3.515GHz (1.635 GHz L-Band) 180 No30 40 3.515GHz (1.635 GHz L-Band) 225 No31 40 3.515GHz (1.635 GHz L-Band) 270 No

32 40 3.515GHz (1.635 GHz L-Band) 325 No

Mark with an X all provided plots and pictures.

• Note L-band Frequency when using an LNB with an L.O. of 5150 MHz (Subtract the actual RFfrequency from 5150MHz to obtain the L-Band frequency)



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2.2 Check List 2 - Additional Check List for Existing Operational Sites

The following check list is to determine if the existing system is or has experience any RF Interference.

If possible connect up the Spectrum Analyzer on a sample port or RX monitor port of the existing systemand take plots as defined below. Do NOT disrupt the operation of the existing system.

Plots Spanin MHz Frequency in GHz (L-Band *)

General Spectrum

Direct ofExistingAntenna

Pictures Requiredat AntennaPointing Direction

CheckX

1 500 3.8GHz (1.350GHz L-Band) Yes

2 100 3.8GHz (1.350GHz L-Band) Yes

3 20 Frequency of Existing Carrier Yes

4 40 3.515GHz (1.635 GHz L-Band) Yes Yes

ItemStatus of Existing Operational System

Response (If more room isrequired please provide on aseparate sheet)

CheckX

1 Name of existing Satellite In Use and its OrbitalPosition

2 What is the existing Operational Receive Frequency(s) (C-Band or Ku-Band)

3 What is the existing operational Receive Polarity(LHCP or RHCP)

4 Is the Antenna Feed Linear or Circular Polarization

5 Has there been any Interference Issues with thecurrent System (Yes or No) If Yes please providedetails.

6 Antenna Size and Manufacturer

7 Any RF or L-Band Filters in use (Yes or No) if Yesplease provide details.



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2.3 Check List 3 – Drawings (all Sites)

Item Description of an alternate Antenna LocationCheckX

1 Has Section 8 Been Completed (Yes or No)

2.4 Check List 4 - IF RF Interference is Detected

If there is any RF interference that has been detected while performing check lists 1 and 2, please thenadvise if there is a suitable location where the antenna can be located that will be more shielded from thesource of the interference.

Item Description of an Alternate Antenna LocationResponse (If more room isrequired please provide on aseparate sheet)

CheckX

1 Is the Original Proposed Antenna location free fromInterference (Yes or No)

2 Can the Antenna be located in an Alterativelocation that would be screened from theInterference source (Yes or No) if Yes Pleaseprovide details

3 Provide description and drawings of the Alternatelocation or Locations.

4 If an Existing iDirect Site, please provide an SCPCerror report from the iDirect modem (See Section 7)

2.5 Overall Assessment

Please provide an overall assessment pointing out the major issues

Technicians Name _____________________ Date _____________



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3 General RFI Procedure

1. Use a DC Block to connect power to the LNA/LNB. When connecting the LNA/LNB power itis important to make sure that no DC feeds back to the Spectrum Analyzer.

2. Set the initial setting of the spectrum analyzer at:

Center Frequency: 3.8GHz (1.350GHz L-Band)Span: 500MHzResolution Bandwidth: 100 kHzVideo Bandwidth: 1 kHzSweep Time: 1 SecondScale Log per Division: 5 dBAttenuation Level: 10 dBReference Level: As required to center trace

3. Starting at 0 degrees (North) azimuth and elevation of 0 degrees

4. Set polarization to Vertical

5. Take a spectrum analyzer plot. Depending on the model of spectrum analyzer this caneither be digital plot (.jpg ) which is preferred or worse case a digital picture of the spectrumanalyzer. Please note the direction in degrees and the polarization on each plot.

6. Take a digital picture in the same direction away from the antenna to show the surroundingarea. Note the direction on the picture.

7. Repeat for ever 45 degrees.

8. Repeat for Span 100 MHz. (Total 16 Plots)

9. In case the antenna needs to be moved please note the configuration of the surroundingarea. ( Roof or Ground location) Please fill out section 6 below with all relevant details.

10. Take note if it is possible to construct an interference shield around the antenna. Note anyissues or problems in doing this. Ask the customer if this would be possible.



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4 RFI at Frequency of Proposed Carrier

1. Set Spectrum analyzer as follows:

Center Frequency : At the proposed carrier frequencySpan : 20 MHzResolution Bandwidth: 100 kHzVideo Bandwidth: 1 kHzSweep Time: 1 SecondScale Log per Division: 5 dBAttenuation Level: 10 dBReference Level: As required to center trace

2. Point the RF Horn Starting at 0 degrees (North) azimuth and elevation of 0 degrees. Note -If performing this procedure at an existing site and the antenna is not going to be re-alignedto a different satellite, then a signal feed from the existing antenna or modem can be usedinstead of using a feed horn. If Interference is detected the feed horn should be used todetermine the direction of the interference.


4. Take a spectrum analyzer plot. Depending on the model of spectrum analyzer this caneither be digital plot (.jpg ) which is preferred or worse case a digital picture of the spectrumanalyzer. Please note the direction in degrees and the polarization on each plot.


6. Repeat for ever 45 degrees. (8 Plots)



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5 RFI WiMax Interference

7. Set Spectrum analyzer as follows:

Center Frequency : 3.515GHz (1.635 GHz L-Band)Span : 40 MHzResolution Bandwidth: 100 kHzVideo Bandwidth: 1 kHzSweep Time: 1 SecondScale Log per Division: 5 dBAttenuation Level: 10 dBReference Level: As required to center trace

8. Point the RF Horn Starting at 0 degrees (North) azimuth and elevation of 0 degrees


10. Take a spectrum analyzer plot. Depending on the model of spectrum analyzer this can

either be digital plot (.jpg ) which is preferred or worse case a digital picture of the spectrumanalyzer. Please note the direction in degrees and the polarization on each plot.


12. Repeat for ever 45 degrees. (8 Plots)

Example of Typical WiMax Interference



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Examples of Typical WiMax Interference



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6 Suggested RFI Test Equipment List

Item Description Model MFG Number

Anritsu Spectrum Analyzer Model MS2711D (100kHz to3.0GHz) with GPS Option

MD3711D MD3711D

Test Horn From ARRA CPR229-880

Test Horn Adapter From ARRA CPR229-880Cable and Connectors Anritsu 08-05972-002

LNB Norsat LNB, 3120 C-Band Int.PLL, 3.4 to 4.2 GHz, LOStability=+/- 5 Khz ppm, NF=20K

3120

RF Filter MFC RF Filter 7893D 7893DIF Filter IF Filter from iDirect 9101-0007-0001

Compass Suunto Tandem CompassCombo

PVCOMAF

Laptop Computer Technician Supplied

Documentation SSG RFI SITE SurveyTemplate



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# telnet 0

Entering character mode

Escape character is '^]'.

Username: adminPassword: ********* (Obtain from the VSAT NMC or SSG)

From the command line the command “rmtstat” must be entered to start monitoring the status.

The status will update every 20 seconds.

The display shows remote status information such as receive level and delta SCPC errors.

> Remote Status: t:001281106133 SNR=10.04 TxPower=-16.60 dBm

RxPower=-25.10 dBm DigitalRxPower = 29.92 Temp=61.8 COF= -3171

TDM_Lost=1064 FllDac=2057 delta_scpc_errors=0

LAN Port: 100 Mbps Full Duplex(AutoNegotiation: Complete) on phy

0

The command “rmtstat” can be typed again to stop the updates.

It is suggested that this procedure can be used while testing various options to reduce the interference.



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8 Site Drawings(Take pictures and obtain floor plans and drawings from customer)

8.1 Antenna Drawing

Obtain site drawings or sketch the outdoor site layout on Attachment A. Indicate the antennalocation, building, cable tray, staging area, and any obstacles using accurate dimensions.

8.2 Horizon Profile Drawing

Draw the horizon line on Attachment B as seen from the antenna location. Give descriptions for anyobstacles with height and azimuth degree and include the satellite arc, marking the location of the

satellite to be used.



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8.3 Attachment A - Antenna Site Layout



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8.4 Attachment B – Antenna Obstructions

On the Look Angle Chart below, plot the magnetic azimuth and elevation angle of the objects+/- 30 degrees on either side of the line-of-sight to the satellite. The large arrow is the azimuth to the

satellite. Define the dimensions of each box to accurately depict the obstruction view. Use “S” to denotethe satellite and “X” to denote any obstruction.

Degrees elevation = ____

Degrees azimuth = ____

________Magnetic azimuth to satellite

EXAMPLE

For a satellite at 14 degrees elevation and 218 degrees azimuth

Degrees elevation = 2 degrees

Degrees azimuth = 5 degrees

2 0

1 8

1 6 X X1 4 X S1 2 X1 0 X X X X X

8 X X X X6 X X X X X X X X X4

2

218 degreesMagnetic azimuth to satellite



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8.5 Attachment C - List of Obstructions

Azimuth Elevation Description



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8.6 Attachment D – On-Site Pictures

8.7 Attachment E – On-Site Spectrum Analyzer Plots

site rfi survey report template version 10082008 c

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