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Field Proven Performance – Industrial Grade Support DATA-LINC GROUP Radio Mobile RF Site Surveys.

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Presentation on theme: "Field Proven Performance – Industrial Grade Support DATA-LINC GROUP Radio Mobile RF Site Surveys."— Presentation transcript:

1 Field Proven Performance – Industrial Grade Support DATA-LINC GROUP Radio Mobile RF Site Surveys

2 2 Topic Choices Introduction Maps & Pictures Unit Properties Networks Properties Resolve Paths Generate Reports Tips & Examples Closing Comments 1. Preliminary Design 2. Software RF Study 3. On-site Survey 4. Feasibility Review 5. Implement Project Steps

3 3 Radio Mobile is freeware software Written by a radio amateur Roger Coude (9VE2DBE) for radio amateurs Operates from 20MHz to 20GHz Based on Irregular Terrain (Longley-Rice) propagation model Is intended for longer distance outdoor applications Download and information at: Radio Mobile User Group: xe/ xe/ Radio Mobile Software

4 4 Radio Mobile Screen

5 5 Data can be accessed online or purchased Elevation Data SRTM (Shuttle Radar Topography Mission) DTED, GTOPO30, GLOBE, BIL Street maps Tiger, OpenStreetMap… Images and ground cover Landsat, Terraserver, Toporama, Land Cover… Elevation & Map Merges

6 6 Topological data is available for most of the world List of sources: ttp:// Shuttle Radar Topography Mission (SRTM) Info and data from Jet Propulsion Laborary: Data is freely available via FTP: The FTP site is heavily used and is taken down for maintenance on Wednesday nights Various resolutions (1 and 3 arcsec, others…) There are some holes where data are not available SRTM Elevation Maps

7 7 Site locations Latitude/Longitude coordinates Acceptable antenna elevations above ground Radio specifications (Radiosys.dat) Transmitter Receiver Antenna and coax Network design criteria Line Of Sight (LOS) Fade Margin User Provided Information

8 8 For ISM bands (900MHz, 2.4GHz, 5.8GHz) and RF paths less than 50km: Rainfall is not a consideration Climate setting = Continental temperate May not be valid for air to ground applications Typically for 1km+ distances Longley-Rice ITS

9 9 Check for web update under Help Confirm Radiosys.dat contains Data-Linc radio systems (File…Networks Properties…Systems) Confirm Radio Mobile Configuration

10 10 Application information Obtain site coordinates and useable antenna heights Identify the master site(s) Identify the preferred wireless product Using Radio Mobile Prepare maps and map pictures Enter Unit (site) Properties Define and analyze All Masters Network Resolve RF path issues Prepare Site Survey report Site Survey Steps

11 Prepare Map and Picture Merges

12 12 Estimate Lat/Lon for map center (master site?) Estimate map size in km and display size Set Options…Internet for SRTM data and region Define the Elevation Data Source

13 13 SRTM USA 1 Arcsecond Regions

14 14 File…Map properties… Define Map Properties

15 15 File…Picture properties to suit your needs… Picture Properties Gray scaled Colored Slope Rainbow

16 16 Edit…Merge Pictures… Streets and Other Map Merges Internet Tiger - USA

17 Unit Properties

18 18 Build the map first so unit elevation can be extracted from the map File…Unit properties Notice a unit can be placed at the cursor position on the map Entering Unit (Site) Information

19 19 Coordinates can be entered as: 47° ° An example coordinate units converter: coordinates/ coordinates/ Entering LAT/LON Coordinates

20 Define Network(s)

21 21 Radio Mobile can be used for applications with a single network of two radios to multiple networks of many radios A SRM master with several slaves can be a network A repeater with attached slaves can be another network A system is a radio, antenna, coax, lightning arrestor, connectors, etc. What is Network and System?

22 22 This will be the starting point for analysis For the All Masters network Set RF band frequencies Set network topology (typically voice) Set the Systems (radio, antenna, coax combinations) Set RF path style based on Rx Relative (fade margin) Add units (members) to the network and Set role to master Choose a system (use omni antenna at this point) If known set antenna elevation AGL Build an All Masters Network

23 23 File…Networks Properties… Networks Parameters

24 24 Networks Topology

25 25 Networks Systems

26 26 Networks Membership

27 27 Networks Style

28 Resolve RF Paths

29 29 Objective here is to minimize your time and labor by quickly determining path issues and application feasibility Requires All Masters network Objective & Requirements

30 30 Use the Radio Link Tool Filter paths using Networks…Styles Tools…Network Report Consider possibilities Change unit system (antenna sub-system)? Adjust unit elevation AGL? Different wireless product? Other repeater sites? Mixed wired/wireless solution? Formulate a solution plan Basic Activities

31 31 Possibly create a network for the master and each repeater Assign units to appropriate network(s) Multiple RF links from master and repeaters to a unit (site) is desirable (alternate paths) Caution: Antenna height and system (ant/coax/radio) for the same site are not linked in each network Set units role in network (master/repeater/slave) Adjust antenna elevation AGL, System type (omni/yagi/coax) for each unit Repeat previous steps until satisfied Implement the Plan

32 32 Radio Link Tool

33 Generate Report

34 34 Report details based on feasibility and survey funding Quick and minimal Thorough and complete Reports are often the foundation for on-site surveys Reporting Comments

35 35 MS Word report template Screen capture software such as Snagit or Paint Shop Pro Radio Mobile: Pictures RF path cross-section screen captures Network report Data-Linc parts list Findings summary and possible concerns Report Generation Tools

36 Tips & Examples

37 37 Using Google Earth When a radio will be mounted at antenna elevation adjust unit elevation to keep coax short Other Features and Tips

38 38 Desired Radio: SRM7210E? Site Details: Master36°01'12"N087°53'57W 40ft N Tank36°06'12"N087°47'01W 100ft TH Tank36°04'35N087°47'46W 75ft CR Tank36°03'42"N087°54'47W 100ft CC Tank36°05'24N087°46'31W 75ft PS136°05'06"N087°47'08W 10ft IS Tank36°05'08"N087°47'46"W 60ft Heights are Above Ground Level (AGL) Example Network 1

39 39 Desired Radio: PLR5000 Site Details: Master43°39'42"N116°16'25W 10m Repeater 143°40'52N116°14'29W 15m Repeater 243°40'18N116°13'49W 20m PS 143°41'26"N116°14'44W 4.5m PS 243°40'42"N116°13'58W 10m PS 343°40'22"N116°11'53W 15m Example Network 2

40 40 Prefer SRM6000 radios Antenna elevations not to exceed 30 feet Site Details: Master38°12'07"N 120°41'21W HWY 4938°12'08"N 120°41'42W SunSet38°11'32"N 120°41'20W OakShadows38°11'08"N 120°39'42W WT138°11'15"N120°40'04W Example Network 3

41 Field Proven Performance – Industrial Grade Support DATA-LINC GROUP Thank You!

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