[chirp_users] how to capture radio stream?
Hi guys,
I need an implementation for a FT-8000 but I may be the only one out there, so..
I thought I might be willing to invest some time into creating a driver as I need an excuse to fiddle with python anyway. It's just another language, and been writing code for 20 years.
To that end, it would seem to me that decoding/deciphering/analysis of the stream of bits and such is the real trick and mapping it to a structure that will work, ack, provide checksums etc. need some sort of analyzer widget for usb serial ports.
So what do you guys use to capture/reverse engineer what the radio is downloading to chirp, and how to figure out how to spit it back in the right format?? . is it published (I think not).
To start that discussion, what tools/techniques do you use/recommend to capture/deciper the kibbles n bits emitted from a target radio?
I tried a tool from eltima that seemed to work nicely until the trial expired, and I cant afford 150 bucks for a full version. Probably a boatload of other toolss out there than can help capture and break it up that will also allow one to send to fake acks etc.
-bob
Look at the developers section of the twiki http://chirp.danplanet.com/projects/chirp/wiki/Developers
Check out the code, then look at some of the drivers, like yaesu, etc.
Some use portmon, but I dont like it personally.
Check out "free serial port monitor", which is free, but looks and feels almost exactly like eltima.
A note about usb serial. If your app is really interacting with a serial port (i.e., virtual com port), then you can probably see it with a serial port monitor.
Just fyi, While FTDI chips present serial "COM" ports (i.e., VCP drivers) to the OS which can be used by any application, some apps read/write data to the device using the D2XX api - which cannot be seen by serial port monitors hooking into the COM ports…
I have only seen a few apps do this. One of the more popular radio programming software suites out there does this ;)
________________________________ From: bob n612dw@gmail.com To: chirp_users@intrepid.danplanet.com Sent: Thursday, March 27, 2014 10:15 PM Subject: [chirp_users] how to capture radio stream?
Hi guys, I need an implementation for a FT-8000 but I may be the only one out there, so…. I thought I might be willing to invest some time into creating a driver as I need an excuse to fiddle with python anyway. It’s just another language, and been writing code for 20 years. To that end, it would seem to me that decoding/deciphering/analysis of the stream of bits and such is the real trick and mapping it to a structure that will work, ack, provide checksums etc. need some sort of analyzer widget for usb serial ports. So what do you guys use to capture/reverse engineer what the radio is downloading to chirp, and how to figure out how to spit it back in the right format?? … is it published (I think not). To start that discussion, what tools/techniques do you use/recommend to capture/deciper the kibbles n bits emitted from a target radio? I tried a tool from eltima that seemed to work nicely until the trial expired, and I cant afford 150 bucks for a full version. Probably a boatload of other toolss out there than can help capture and break it up that will also allow one to send to fake acks etc. -bob _______________________________________________ chirp_users mailing list chirp_users@intrepid.danplanet.com http://intrepid.danplanet.com/mailman/listinfo/chirp_users
I wrote you a guide: http://chirp.danplanet.com/projects/chirp/wiki/DevelopersAdd_a_Radio
Sorry, I ran out of time and didn't finish it, but it should be enough to get you started. Hopefully someone else can fill in some details because I left it lacking, and what's there is sloppy. But it's better than nothing!
Please continue this discussion the developer mailing list (linked in the guide above).
Tom KD7LXL
On Thu, Mar 27, 2014 at 8:15 PM, bob n612dw@gmail.com wrote:
Hi guys,
I need an implementation for a FT-8000 but I may be the only one out there, so….
I thought I might be willing to invest some time into creating a driver as I need an excuse to fiddle with python anyway. It’s just another language, and been writing code for 20 years.
To that end, it would seem to me that decoding/deciphering/analysis of the stream of bits and such is the real trick and mapping it to a structure that will work, ack, provide checksums etc. need some sort of analyzer widget for usb serial ports.
So what do you guys use to capture/reverse engineer what the radio is downloading to chirp, and how to figure out how to spit it back in the right format?? … is it published (I think not).
To start that discussion, what tools/techniques do you use/recommend to capture/deciper the kibbles n bits emitted from a target radio?
I tried a tool from eltima that seemed to work nicely until the trial expired, and I cant afford 150 bucks for a full version. Probably a boatload of other toolss out there than can help capture and break it up that will also allow one to send to fake acks etc.
-bob
chirp_users mailing list chirp_users@intrepid.danplanet.com http://intrepid.danplanet.com/mailman/listinfo/chirp_users
participants (3)
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bob -
Jens J. -
Tom Hayward