RMS II
RMS ChartMaker Application

(rev. 31-Aug-01)


RMS ChartMaker


Introduction

The RMS ChartMaker application lets users create two types of band scan charts, summary charts and "peak and valley" (i.e. line) charts, from a set of scan files.

Summary charts display average S-meter readings for a specified frequency band over a specified time period. A summary chart consists of a matrix, where each cell in the matrix is colored to indicate the average S-meter reading at a given time and frequency. The x-axis of a chart is time, ranging from 00:00 hours to 23:59 hours, where each column of the matrix represents a 30 minute interval. The y-axis lists the frequency settings for the selected frequency band, where each row of the matrix represents the frequencies in 5kHz increments. Separate summary charts can be created for each (frequency band, location) pair, or they can be created for each frequency band and all locations.

Line charts display the actual s-meter readings, for one or more locations, over a given frequency range. The x-axis is the frequency range of the frequency band being graphed (in kHz); for example, the x-axis values for the 7MHz band range from 7100 kHz to 7600 kHz. The y-axis is the actual s-meter reading values, which can range from 0 to 255. If more than one location is being graphed, then the data for the first four locations encountered will be color coded and all subsequent locations will be assigned a "other" color.

RMS ChartMaker lets users identify the set of scan files to be processed by filtering on the following criteria:

For each frequency band selected in a ChartMaker "scan query", a separate HTML document is created which contains the summary chart or line chart for that band. In addition, a "Table of Contents" HTML file is created. This file contains a summary of the band scan query performed, and it provides links to each of the HTML chart files created. This allows you to open the "Table of Contents" file in a browser and easily view the various summary charts.

A Windows compatible version of RMS ChartMaker is also available which supports the same functionality as the Mac version.

System Requirements

CPU:           Macintosh: Any PowerPC Macintosh, PowerBook, or clone. Windows: any Windows compatible PC
Memory Usage:  4.6MB
Disk Usage:    4.6MB + however much space is needed for the HTML chart files
Network:       none required
OS:            Macintosh: System 7.5 or later, including System 8 or 9. Windows: Windows 95/98/NT

Software Components

Software Installation

  1. For Macintosh, copy the application file "RMS ChartMaker" to a folder on the Mac's hard disk. For Windows, copy the application file "RMS ChartMaker.exe" to a folder on the PC's hard disk.
  2. For Macintosh, copy the "Locations" and "Bands" files to the same folder that contains the RMS ChartMaker application. For Windows, copy the "Locations.txt" and "Bands.txt" files to the same folder that contains the RMS ChartMaker.exe application.
  3. Install Netscape Navigator or Internet Explorer using the installer provided by the respective company. Make sure the Java option is enabled in the target browser.

Software Setup

Before you begin creating charts with RMS ChartMaker, you must first make sure the Locations (or Locations.txt) and Bands (or Bands.txt) text files contain the location and band settings appropriate for the data you wish to analyze. Most likely the Bands file will not need to be changed, since the standard Bands file contains a description of all the standard frequency bands used by the RMS software. However, you will likely need to update the Locations file.

Each line in the Locations file contains a single text string, which represents a single location; for example, "VIEN" represents the Vienna RMS location. Location strings are limited to four characters. To edit the Locations file:

  1. Open the Locations (or Locations.txt) file in the BBEdit (or NotePad) application. Simply add/change/remove strings from the text file and then save the file. Note that all leading and trailing spaces on a line, as well as blank lines, will be ignored. The next time you run the RMS ChartMaker application, it will utilize the new Location settings in its scan query dialog.

Each line in the Bands file contains a single text string, which describes the frequency band in MHz and the frequency range for the band; for example, "9:9300-9995" represents the 9MHz frequency band, with a frequency range from 9300kHz to 9995kHz. In general, lines within the Scans file have the following format: "<frequency band in MHz>: <minimum frequency in band> - <maximum frequency in band>". To edit the Bands file:

  1. Open the Bands (or Bands.txt) file in the BBEdit (or NotePad) application. Simply add/change/remove strings from the text file and then save the file. Note that all leading and trailing spaces on a line, as well as blank lines, will be ignored. The next time you run the RMS ChartMaker application, it will utilize the new Band settings in its scan query dialog.

For summary charts, the s-meter ranges assigned to each color can be changed. Simply invoke the Preferences command in the File menu. A dialog appears in which to change the various s-meter ranges.

Notes