Hello Every Body,
Some new hints and tips for RDF
New SoundDoppler138.zip Soon on our sites.
Hello Everybody,
Sofisticated Radio Direction Finding
Whats needed for a SoundDoppler Mobile Foxhunt
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Go with at least two persons.
One driver and one operator.
Safetey first !
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Download the latest version SoundDoppler and APRSIS32
Just buy
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1 LapTop with XP/Vista/Win7/8
1 USB Stereo input SoundCard if the PC doesn't have it like UCA202
1 GPS mouse with rs232 or USB with NMEA
1 FM Rx porto or scanner or a FT817 with cat62 cable
1 Maybe you need USB to RS232 cables to
To build assemble yourself
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1 SuperSimpleSoundDoppler Generator
1 4x Antenna Array
You can buy the PCB's from PA8W
http://members.chello.nl/~w.hofman/pa8w/rdf.htmThe best SuperSimpleSoundDoppler generator is the hardware with 4 softswitch
transistors connected to the 4017 chip.
This let the doppler detect weaker signals and it has less influence from
strong neighbourh channels.
1 50 ohm coax cable(rg58) with connectors BNC /SMA
1 Control cable with 5p Din connectors
1 USB or rs232 db9 cable to make the GPSmouse cable longer so it can
reside on top of the car roof.
1 shielded audio cable with 3.5mm stereo jack to lsp rx and sounddopplergenerator
1 Maybe a Switchable monitor loudspeaker
1 Maybe Needed a simple stereo-preamp for the USB SoundCard with isolation
1:1 transformers to avoid ground loops.
1 12V board supply volt connector block
1 adapter to feed the Laptop from 12 volts (Home brew?)
(Maybe you need a upconverter many laptops have adapters on 16 Volt)
Try to create a box or assembly where all the hardware resides.
Make shure you can see the laptop screen and try to shield it from sunlight.
If using APRSIS32 then also cache the tiles from the region where the hunt happens.
Play with the software at home so you know how the software and hardware works!
I think anyone can become a profi-hunter with this equipment.
In the mean time I try to make the software as good as it can be !
Happy Mobile (Fox/Balloon) Hunting
PA3BNX
Hello Every Body,
Some hints to get SoundDoppler working with APRSIS32 from KJ4ERJ
Under SoundDoppler
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Press F11 PacketLog
You must enter a
callsign (Maybe nice to take another SSID then APRSIS uses like -7 or -9)
latitude
longitude
To send to APRSIS32
If you have a GPS working then the latitude and longitude
are coming from there.
Check TCPIP checked
check Kill checked (wil grey Older DF Objects)
If you have a GPS-rx and a recent APRSIS32 then
Check Cse+Hdg :Unchecked (It adds GPScourse and DopplerHeading)
This must only checked if using an older APRSIS32
Under APRSISIS32
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Create a new port called something like Doppler
Configure>Ports>New
Adjust in popup screen
Type :Text
Name :Doppler
Then press TCP/IP
IP or DNS :Localport
Port :1024
Quit Time :0
Enabled :checked
Bulletin/Obj:checked
Screen>Direction Finding>Enabled
Screen>Direction Finding>Opacity (15)
Screen>Brightness>Dim (Better visability for DF sectors)
If you don't like many DF objects in the scroller then
Screen>Scroller>Not Mine :checked
Enables>Port>All
Enables>Port>Doppler
Sometimes there is no connection to SoundDoppler
Then simply close and reopen the Doppler port
Enables>Port>Doppler :uncheck
en right after that
Enables>Port>Doppler :check
You can also switch SoundDoppler.exe TCP/IP with the checkbox
left from the start/running button in SoundDoppler
If it shows Doppler OK
Just above the scroller then there is a connection
APRSIS32 can send the DF objects to Internet
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Configure>Ports>Doppler
RF to IS :checked
Of cource you need a passcode to send to IS
I hope this wil help you all to get SoundDoppler.exe running with APRSIS32.exe
73's PA3BNX
Happy Foxhunting