If there was an alternative way I could gather the required data, I would be interested. Oh, and I would be interested in testing as well.

It's really not as easy as getting a serial dump or even a sample image. The process of reverse-engineering these radios is time-consuming and very tedious, even when you have the radio on hand. I've done a couple of models remotely, asking someone to send me dump after dump in an attempt to do it without having to actually hold the radio myself. Even as skilled as I have become at making (relatively) quick work of doing these, it takes so much _more_ time that way that I've committed to not doing it remotely anymore. Other developers may feel differently, but the time cost is far (far) more than the monetary cost to ship the radio back and forth between the owner and the developer once.

Pardon for reviving this thread.

This is not a full analysis of the TR-N7 radio, but if anyone has one, this could be a starting point.

Project Log: http://briankhuu.com/projects/TR_N7/TR_N7.html

Dataset Directory: http://briankhuu.com/projects/TR_N7/files_analysis/

```

radio data file.dat 26-Feb-2015 15:27 4k This is the save file for the SV83 software that communicates to the radio

read_modified.htm 26-Feb-2015 15:28 208k This is the serial information from device to computer

readme.txt 26-Feb-2015 15:27 4k Old log.

write_modified.htm This is the serial information from computer to device

```

SV83 software: http://briankhuu.com/projects/TR_N7/files/Sv83v1.05.exe (can get it elsewhere tho)

------

If anybody has better luck at working this out, then let me know.

Seems like the protocol is just a memory dump/write. Reminds me of how one would read an i2c eeprom

-----

Cheers,

Brian K

On Tue, Mar 5, 2013 at 10:29 AM, Tony Langdon vk3jed@vkradio.com wrote:

On 5/03/13 10:12 AM, Dan Smith wrote:

...

It's really not as easy as getting a serial dump or even a sample image. The process of reverse-engineering these radios is time-consuming and very tedious, even when you have the radio on hand. I've done a couple of models remotely, asking someone to send me dump after dump in an attempt to do it without having to actually hold the radio myself. Even as skilled as I have become at making (relatively) quick work of doing these, it takes so much _more_ time that way that I've committed to not doing it remotely anymore. Other developers may feel differently, but the time cost is far (far) more than the monetary cost to ship the radio back and forth between the owner and the developer once.

Fair enough, I'm in no great hurry in my case, and I'd prefer not to ship things halfway around the world and back if I can avoid it. :) However, I haven't ruled that out either, though it won't be any time soon. I'll see how things look around the middle of the year, and if I have some spare cash and no risk of moving house, then you might have a radio headed your way to play with. :)

-- 73 de Tony VK3JED http://vkradio.com

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