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Ok, I have updated the pcb layout with bridges for the rx/tx lines and also fixed that vcc was missing on the gps IO_line, from my pevious tests this system works fine with just 6 of the smalles solar

I’ll upload your files to the site. You could modify your rx/tx lines to/from the GPS to the 328 with solder pads that can be connected after configuration and flashing of the firmware. Another

Hi, I have made a pcb of the layout, check for errors, especially RX / TX lines. I cant upload them in the filesection so I have put them here?http://www.filedropper.com/wspr? if an admin would

Eduard, That's good to hear. I didn't have the script deal with GPS aging, with the cold temperatures at altitude you may see some variation in the internal timing of the Arduino after it is set.

Steve, I am not a programmer by career, mostly a hardware guy, but I got it working plus encoding the special WSPR telemetry format that the guys from the floater community are using.? Now, have

For me the advantage of HF was lower energy consumption and world wide coverage with widely available digital modes. The code is just a starting point not a solution for all situations, which is one

Yes, that is correct. If course others could be used, but the code would have to be adapted accordingly.

Typo in the Hardware requirements :?- SI5352 module. It should be 5351.

Steve,? Hi. Just found your project. My HAB trackers are currently doing RTTY in 70cm band. Swapping the radio module is the only way to convert them to HF. For floaters, it is required we do HF or

We are planning on getting a balloon up this summer. I have been working on software running on a Parallax Propeller and it has been working very well on WSPR mode. I did originally want to use an

Working toward launching my first balloon of any type.? Using some purchased Pi boards.? I plan to turn to the small and light payloads sometime this summer, but we will see how that goes.?

It has been some time since I have updated or done any work on this project. It seems that there are a few interested people now since I first uploaded these files. Has anyone made any progress in

Standard telemetry format as it is coded in v0.3 is as follows, transmission on x minutes and x frequency: WSPR - 00:02 -?14.097150 MHz - CALL, 4-digit locator, altitude (dbm format below) FT9 -

Truly?*open source*?High Altitude Balloon tracking using Arduino and SI5351 to transmit WSPR, JT9 and/or JT65 telemetry reports. Free for non-commercial use, so long as you keep modifications and