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Doppler Systems LLC

Radio Direction Finders and Direction Finding Systems

Software Demonstrations

Our SignalTrack software provides a tool for controlling and viewing data collected by a network of direction finding network.  You can evaluate our software by downloading it and running it in the playback mode or if you would like you can connect live to our two VHF direction finding sites in the Phoenix area

SignalTrack Play Back Demonstration

The data required for the play back demonstration is included on the installation disk that came with your direction finder or it can be downloaded.  The data consists of two playback files and two maps.  Test case 1 is data recorded by a single mobile site trying to find a transmitter.  Test case 2 is a mobile site using data from a fixed site to find the transmitter.

To run the demonstrations download and unzip the demonstration files and save them to a known location on your hard drive. If you haven't installed SignalTrack download and install it.  Launch SignalTrack and when the wizard starts press the cancel button.  Go to the Maps menu and select Map Menu Builder to display the dialog shown below.  Press the Add button and select Maps.  Navigate to the directory where you saved the maps and select both maps. 

 

Next select the Carefree 2 map from the Maps menu.  In the File Menu select Playback.  Navigate to the directory where you saved the playback files and select the file you would like to view.  After selecting this file a dialog box like the one shown below will be displayed.

Use the controls in the playback to start and stop the playback or to fast forward it as you would in any playback of data.  All the controls within SignalTrack function as they would if a direction finder were connected to it.  Use the Insert and Delete keys to capture mobile bearings.

TargetTrack Play Back Demonstration

To view the operation of TargetTrack without a direction finder we've recorded two missions and created one training package.  The recorded missions were ran using our DDF7001 packaged systems near our office in Carefree, AZ.  The first recorded mission is a single mobile searching for a beacon transmitter made by Big Red Bee.  The transmitter is programmed to send pure carrier for about 15 seconds followed by 30 seconds of silence.  The second recorded mission utilizes two fixed sites and one mobile site searching for the same transmitter in a different location.  The training package was created to demonstrate the multiple target capability of TargetTrack.

To run the demonstrations download TargetTrack Demo.zip.  In this zip file you will find instructions for loading the data and running the demonstrations.

Live Data Demonstration

Doppler Systems maintains a direction finder site in the Phoenix area that is connected to the Internet.  The site is used for equipment and software test but is normally available and can be used by our customers.  If you would like to use this site, download and install SignalTrack or TargetTrack and download a map for the Phoenix area (press here to download). 

To use SignalTrack, launch SignalTrack and when the wizard appears select Blank Fixed Site Mission.  On the maps wizard page push the Load Maps button and select the Area Around Phoenix map that you downloaded and press Next.  In the next dialog enter a frequency of 162.55 and name it Phoenix WX.  This is the local NOAA weather frequency.  Press finish and then save the mission.  Next you will enter the site.  Press the New button and then fill in the information as shown in the figure below.  Press Done and you should see the site centered on Carefree, Arizona.  Next tune the receiver to 162.55 and press the Run button (lightning bolt).  Bearings should be shown emanating from the site pointing slightly south of Phoenix (near the G in Guadalupe).

To use TargetTrack, Launch TargetTrack.  At the top of the map pane select use the Map Menu and select Open Map. Navigate to where you stored the Area Around Phoenix map and select it.  Once the map is displayed right click on the map near Carefree and select Add New -> Fixed Site.  Fill the dialog fields as shown below.  After you've connected to the site use the receiver tuning control in the lower left corner of the window to tune the receiver to 162.55 (a local weather channel).  Bearings should be shown emanating from the site pointing slightly south of Phoenix (near the G in Guadalupe).  You can also tune to 162.425 which is another weather station on Mount Ord near Payson AZ.  TargetTrack requires audio streaming.  To set up audio streaming you will need to port forward port 10001 in you router.  See the technical application note on how to configure your router.

Occasionally this site is down for maintenance and new equipment installation.  If you have trouble getting a connection please e-mail us and we will let you know when the site will be available.