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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

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 -

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

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.?

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

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

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

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

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

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

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.

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

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

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

Here is yet another one, scl and sda got on the wrong pins, will have a closer look this weekend when I have got some sleep :) /Mikael

I have uploaded your files to the board. Sounds good, keep us updated on your progress and test results. Good Luck

I posted your updated files to the board, let us know how your test go.

I have made some changes to the code I found in this group's file download section to do some testing. I am deciding whether I would need to increase the RF output of the SI5351 to ensure its reports

To my experience there is no need for an amplifier, even at the moste remote areas of the world Im getting a lots of spots runnig the 5351 barebone, Im using 20m band and cut the antenna to regular

Hi Steve, I think that adding an amplifier would be overkill for this. You would be draining your batteries much quicker and adding another potential point of failure. The 10mw output has been proven