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ICT WSPR Tracker BOM?
Big Dave
I am trying to find a BOM (list of parts) for the ICT WSPR tracker.
I read the excellent PDF by yo9ict, but a few parts, such as the resonator and the 27MHz TcXO for the Xmiter are proving hard to track down. No part number is given and there are so many to choose from. Can anyone point me in the right direction? Thanks, -Dave |
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Re: HABalloon Project
I prefer the upper edge of wspr bandpass, I have my trackes set at 14097185, the thought is that its less traffic toward the edges (upper/lower) of the bandpass and our low power signals have a better chance to get through there, when I used jt9 I set just outside wspr bandpass at around 14097280, that way I could decode them both with one radio. same scenario goes with 30m
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Re: HABalloon Project
Hi,
I'm testing here WSPR transmitter confused here if I select WSPR? frequency 14095600UL I found signal on WSJTX 400Hz. So if I want to decode in WSJT-x (1400-1600Hz) then I need to set to 14.094.60MHz on radio. If I'm right then I need to change the frequency 1kHz up? or I'm doing something wrong? BR Jan |
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Preflight for LightAPRS-W
I purchased a LightAPRS-W tracker from QRP Labs for my first ever balloon project.? I'm trying to maximize my learning and enjoyment for the $115 investment.? These are my planned tests before flight.
Solar panels will be tested for voltage and current output, frozen possibly as low as -55F, and checked again. Not planning to test them while at -55, just expose them to weed out poor performing parts. Energy storage capacitors will also be frozen and checked like the solar cells. The board itself will also get a freeze, and I hope to operate it at cold temp on the ground with dry ice.? A friend suggested mounting it to a kite for a recoverable test.? If I can do this with some dry ice to keep everything cold I will, but likely it will be ambient. Anything else? With a little luck I should have a launch before year 2030. :) -- 73 de AE8AT |
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Re: HABalloon Project
Should work but not tested. You should change the fuse bits and the board definition.
Anyway, Arduino Mini has some weight. You'll have very slim chances at circumnavigation. Stick with the project as it is presented. It works. Do not give more than 3.6V. Stick with the Taitien TCXO, it works exceptionally well. You can fit another type of resonator for the AVR. Eduard YO3ICT ex. YO9ICT |
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Re: HABalloon Project
fine. thanks? yo9ict. Question? will work with normal Arduino mini 8MHZ? 3.3V or the timers are only for 4mhz? On Wed, Sep 11, 2019 at 5:40 PM <yo9ict@...> wrote: Final instructions, including Firmware and PCB layout, for the ICT-series balloons. |
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Re: HABalloon Project
On Mon, Sep 9, 2019 at 11:22 AM <yo9ict@...> wrote: What page did you read? |
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Re: HABalloon Project
I read the whole page about ICT3 and I see at the whole code with telemetry protocol you get it to atmega328p excellent. and the HW is bullet proff for temperature environments ::) You make me my day if I should see your code? On Sat, Sep 7, 2019 at 5:58 PM JanV via Groups.Io <jan.vadilijev=[email protected]> wrote:
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Re: HABalloon Project
Uaau ... 44days it seems you made a big job. If not a secret if you can put it together will be nice On Sat, Sep 7, 2019 at 5:44 PM <yo9ict@...> wrote: I've improved and enhanced it to also comply with U3B telemetry format. |
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Re: HABalloon Project
I've improved and enhanced it to also comply with U3B telemetry format.
Its been flown three times. Last flight is still up, more than 44 days airborne and yesterday completed the 2nd lap of the Earth. The code has some structural resembles to the original HABalloon code, so I've been wanting to try to commercialize it but this dream is slowly fading away. I will try to put together an archive with everything needed : instructions, firmware, PCB.? |
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Re: HABalloon Project
Hi, thanks for suggestion? I try to put it at the end of timing ? ? ? ? if ((minute() == 2) && (second() <= 30)) ? ?// Tx on minute 2 and 32, "30 second" prevents double transmission. WSPR is 2 minute TX period. ? ? ? ? ? ? { ? ? ? ? ? ? ? loc4calc(); // update 4-digit locator before transmission ? ? ? ? ? ? ? intGPSalt(); // update altitude before transmission ? ? ? ? ? ? ? freq = WSPR_FREQ1; ? ? ? ? ? ? ? setModeWSPR(); // set WSPR mode ? ? ? ? ? ? ? encode(); // begin radio transmission ? ? ? ? ? ? ? delay(50); //delay to avoid extra triggers ? ? ? ? ? ? ? setGPStime(); ? ? ? ? ? ? } I hope this will works better Anyone improved this code or use it on balloon yet?? For telemetry is this a standard protocol or need something?better to properly decode on habhub? On Sat, Sep 7, 2019 at 5:22 PM <yo9ict@...> wrote: Try adding another?setGPStime(); call within the TXtiming() function. |
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