| Track Flight
The following are the standard payloads that are part of all flights.
 Internet Tracking
Position reports are transferred to the Internet and a flight may be tracked with a standard web browser. The following Internet sites collect APRS data world wide, saves it in a data base, and allows users to view and map the data in real-time. The site provided updated position information every two to three minutes.
| Click to Track | Description |
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Recommended - This is the newest website that integrates APRS data with Google Maps updated in real-time. When you first connect to the site, it will ask for your callsign or nickname. This is not a spam or scam site. They just use the information to track usage and to remember your settings if you utilize multiple computers.
 
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findU is a database archiving weather, position, telemetry, and message data. The primary source of data is an amateur radio system called APRS, some weather data comes from an internet based system called the Citizen Weather Observer Program. This large (58 GB) database is constantly updated (about 20 new reports come in every second), and is accessed via a number of dynamic web pages. |
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aprsworld is unique from other APRS databases like findu.com in that all of the software I use is Open Source and is available to anyone interested in learning from it. |
Cross Band Repeater - FM Voice
Input: 145.560 MHz/162.2 Hz PL tone
Output: 445.525 MHz
Linked to IRLP reflector 9255
APRS - Automatic Position Reporting System
Freq: 445.950 MHz
Pico Beacon at 00 and 30 seconds GPS time via KD7LMO-11,GATE,WIDE3-3
When repeater not in use at 10, 20, 40, and 50 seconds GPS time via KD7LMO-11,GATE,WIDE3-3
Landing prediction after burst at 15 and 45 seconds GPS time via KD7LMO-0
APRS - Telemetry
Plain text telemetry message. Telemetry is a data report provided by the Payload Computer and Pico Beacon that shows the current operational status. The report provides plain text information. The following is an actual flight status message and its data elements. >ANSR 01:39:08 94386' 1031'/min 1.1pdop 8.4V 32.2F 34.5F -1.5F | Telemetry | Description | | > | Standard AX.25 symbol to indicate this is an APRS status message. | | ANSR | Standard project identifier. ANSR - Arizona Near Space Research | | 01:39:08 | Flight time in hours, minutes, and seconds. This flight has been aloft 1 hour, 39 minutes, and 8 seconds. | | 94386' | Current altitude in feet. | | 1031'/min | Ascent/descent rate in feet per minute where a positive number represents an ascent. | | 1.1pdop | GPS Horizontal Dilution of Position. HDOP/PDOP is used to determine the accuracy of the current GPS solution. An HDOP/PDOP of 3.0 or less indicates the GPS accuracy is very good. The HDOP/PDOP is provided in the telemetry string to determine what happens if the payload is tumbling after a balloon burst or if the package lands in an unusual attitude.
If the units suffix 'hdop' is shown, the GPS fix is provided in 2D (no altitude) mode.
If the unit suffix 'pdop' is shown, the GPS fix is provided in 3D (altitude) mode. | | +8.4v | Battery voltage in DC volts. | | 32.2F | Internal payload computer temperature in degrees Fahrenheit. | | 34.5F | Radio base plate temperature in degrees Fahrenheit. | | -1.5F | External temperature in degrees Fahrenheit. |
The following is the standard telemetry report provided by the Pico Beacon.
>ANSR 02:04:46 70183' 92145'pk 1.1pdop 09trk +2.8v -35.2F www.kd7lmo.net | Telemetry | Description | | > | Standard AX.25 symbol to indicate this is an APRS status message. | | ANSR | Standard project identifier. ANSR - Arizona Near Space Research | | 02:04:46 | Flight time in hours, minutes, and seconds. This flight has been aloft 2 hours, 4 minutes, and 46 seconds. | | 70183' | Current altitude in feet. | | 92145'pk | Maximum altitude recorded in the flight. | | 1.1pdop | GPS Horizontal Dilution of Position. HDOP/PDOP is used to determine the accuracy of the current GPS solution. An HDOP/PDOP of 3.0 or less indicates the GPS accuracy is very good. The HDOP/PDOP is provided in the telemetry string to determine what happens if the payload is tumbling after a balloon burst or if the package lands in an unusual attitude.
If the units suffix 'hdop' is shown, the GPS fix is provided in 2D (no altitude) mode.
If the unit suffix 'pdop' is shown, the GPS fix is provided in 3D (altitude) mode. | | 09trk | Number of tracked satellites used in the GPS fix solution. | | +2.8v | Battery voltage in DC volts. | | -35.2F | Internal payload computer temperature in degrees Fahrenheit. | | www.kd7lmo.net | Informational web site reference for payload. |
NMEA-0183 $GPGGA (GPS Fix data) navigation message that provides location and altitude information.
NMEA-0183 $GPRMC (Recommended Minimum Specific GPS/Transmit data) navigation message that provides location and course/speed information.
Optional Payloads
The following are the payloads that fly on some flights. Check the Yahoo Group Page or ANSR web site for an up to date payload manifest.
S-Band Video Transmitter
Output: 2418 MHz
Antenna: RHCP (Right Hand Circular Polarized)
NTSC Color Video
HF-APRS Output: A wide variety of HF bands depending on the antenna flown
Modulation Schemes: PSK-31, 300 baud FSK, 1200 baud A-FSK, and 9600 FSK
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