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W5HN North Texas Microwave Society NTMS 1 Tracking Microwave Rovers with APRS By Bob Kmak K5WO.
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Transcript of W5HN North Texas Microwave Society NTMS 1 Tracking Microwave Rovers with APRS By Bob Kmak K5WO.
![Page 1: W5HN North Texas Microwave Society NTMS 1 Tracking Microwave Rovers with APRS By Bob Kmak K5WO.](https://reader036.fdocuments.net/reader036/viewer/2022062423/56649e045503460f94aefd1f/html5/thumbnails/1.jpg)
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 1
Tracking Microwave Roverswith APRS
By Bob Kmak
K5WO
![Page 2: W5HN North Texas Microwave Society NTMS 1 Tracking Microwave Rovers with APRS By Bob Kmak K5WO.](https://reader036.fdocuments.net/reader036/viewer/2022062423/56649e045503460f94aefd1f/html5/thumbnails/2.jpg)
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 2
Keeping Track of Where Everyone Is
Recent NTMS events have been characterized by more rovers than home stations. Keeping track of where all the rovers are, especially when they are en route to a new location, has become increasingly difficult.
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W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 3
Why APRS?
APRS is an automated method of broadcasting position, direction, and velocity data from an amateur radio station.
APRS-enabled rovers would continually broadcast their position via packet radio on 144.39 MHz.
Home stations monitoring APRS data either through the internet or using only radio could see the position of most or all rovers at any given time.
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W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 4
APRS Review
In the US, APRS stations beacon on 144.39 MHz
The three basic components of an APRS beaconing station are a GPS receiver, 2 meter FM radio, and a Terminal Node Controller (TNC)
GPS Radio
NMEA Data
TNC
PTT
XMT
RCV
Beaconing (rover) station
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W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 5
An APRS monitoring station requires a computer and appropriate software for viewing the position of other APRS stations.
Computer TNC
RS-232
Radio
PTT
XMT
RCV
Computer Internet
Monitoring (home) station
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W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 6
![Page 7: W5HN North Texas Microwave Society NTMS 1 Tracking Microwave Rovers with APRS By Bob Kmak K5WO.](https://reader036.fdocuments.net/reader036/viewer/2022062423/56649e045503460f94aefd1f/html5/thumbnails/7.jpg)
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 7
How APRS packets are propagated
• Direct propagation from one station to another
• Digipeaters - A number of stations in the area are configured to repeat, or retransmit, every packet they hear. The number of times a packet is digipeated is controlled by routing instructions embedded in the packet.
• Internet Gateways - Some APRS stations are connected to the internet, and send all packets they receive to databases on the internet.
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W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 8
The Tiny Tracker
• A tiny, transmit only TNC.
• Connects to transceiver and GPS receiver.
• Can be configured to beacon only when moving, every X seconds, only when speed is above Y, etc.
• $36.00 in kit form.
![Page 9: W5HN North Texas Microwave Society NTMS 1 Tracking Microwave Rovers with APRS By Bob Kmak K5WO.](https://reader036.fdocuments.net/reader036/viewer/2022062423/56649e045503460f94aefd1f/html5/thumbnails/9.jpg)
W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 9
Tiny Tracker configuration
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W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 10
Configuring ‘Smart Beaconing’
SmartBeaconing Slow Speed, Slow RateThis setting sets the SmartBeaconing slow speed (MPH) and rate (seconds). Speeds slower than the slow speed will cause TinyTrak3 to beacon at the Slow Rate.
SmartBeaconing Fast Speed, Fast RateThis setting sets the SmartBeaconing fast speed (MPH) and rate (seconds). Speeds faster than the fast speed will cause TinyTrak3 to beacon at the Fast Rate. Fast Speed must be set higher than Slow Speed.SmartBeaconing Min Turn Angle, Turn Slope, and Min Turn TimeThese settings set CornerPegging parameters for the minimum turn angle (degrees), turn slope (MPH-degrees), and minimum turn time (seconds). Turns less than the minimum turn angle since the last transmission will not cause a transmission. The lower the turn slope, the quicker TinyTrak3 will transmit due to turning. Both Min Turn Time and Min Turn Angle must be less than 256.
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W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 11
Monitoring APRS via the Internet
• A web browser and internet connection are all that is necessary to monitor APRS data via the internet.
• The most commonly used APRS website is www.findu.com .
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W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 12
Querying APRS data
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W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 13
Querying for N5 stations in the DFW area
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W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 14
Map generated by query
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W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 15
Querying by ZIPCODE
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W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 16
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W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 17
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W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 18
APRS softwareUI-View
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W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 19
UI-View basic configurations
• Use with hardware TNC
• Use with soundcard TNC ( AGWPE )
• Connect to internet
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W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 20
References
Maps for APRS
http:/www.n5oom.org/2004_hamcom/presentations/maps_for_APRS.pps
Intro to UI-View
http:/www.n5oom.org/2004_hamcom/presentations/UI-View_presentation.pps
APRS Tracker Examples
http:/www.n5oom.org/2004_hamcom/presentations/APRS_Tracker_Examples.pps
Intro to APRS
http:/www.n5oom.org/2004_hamcom/presentations/Intro_to_APRS.pps
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W5HNNorth
Texas
Microwave
Society
NTMS
WWW.NTMS.ORG 21
References-continued
APRS for Emcomm & public service
http:/www.n5oom.org/2004_hamcom/presentations/APRS_for_Emcomm_and_Public_Service.pps
TinyTrackerhttp://www.byonics.com/tinytrak/
UI-Viewhttp://welcome.to/uiview
Findu.com
http:/www.findu.com