Tim Rossiter W3IPA
1.7K posts


@PeterVogel Is your loop indoors or out? I was just looking at some loops for a RX antenna.
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@PE1RDP If the weather would calm down here. I have a 12m pico balloon to launch as well
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@pittbandphoto It’s heading in that direction. According to the flight prediction
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@w3ipa Hope it avoids the Persian Gulf so we won't hear of your balloon on CNN.
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@Gregbadilla You can use it. Your most likely will not get the altitude, it’s usually diluted 75-85% helium.
I use pure helium 99% I get it from a local weld gas supplier.
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@w3ipa Thank you for the response!. I have one last question. What type of hellium you use? Those for party globes should work fine or not?
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Launched my first pico balloon of the year. 10m WSPR transmits. Let’s hope for a nice long trip!
Follow along here:
traquito.github.io/search/spots/d…

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@Steepcurvature I do, the tracker transmits x2 two minute transmissions that give altitude, temp, location, speed, and a few other things, then I take the current spot and enter it into HYSPLIT which is under NOAA for predicting travel according to location
traquito.github.io/search/spots/d…
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@AI_in_LEO GPS antenna there’s another board on the opposite side that is soldered to the RPi
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@Gregbadilla a.co/d/0gyuIBni
I initially inflate it all the way with a small pump to stretch it and test to see if it has a leak from the get go. I believe it’s a fish tank bubbler motor. Then deflate it all the way before you fill it with your lift gas
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@w3ipa Awesome. I'm waiting my pico to start to build the first wspr balloon launched in Costa Rica.
Which balloon are you using for your wspr sonde? 73!
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@vomit73 @loebl_tom Yep, halfwave vertical dipole. One section is running up the support string from the tracker to the balloon and other section is just trailing below it.
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@N4JAW @PeterVogel It has always amazed me how far WSPR gets out especially with a vertical dipole at 40k ft!
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Tim's @w3ipa #W3IPA 10m #AmateurRadio #HamRadio #PicoBalloon Pico Balloon is the middle of the pond making its way toward Europe. @PeterVogel
Tim Rossiter W3IPA@w3ipa
Last few hours of this morning over the Atlantic. 10m balloon getting out pretty good. Should be over EU in a few days.
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@w3ipa @ThrillScience Now if you or someone makes another order I would consider getting some.
Bel Air, MD 🇺🇸 English

@KD8ATF @ThrillScience Yea I made a big order prior to the tariffs kicked in. Glad I did.
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@w3ipa @ThrillScience I want to get traquitos but the last I look it was above my pay grade🤣
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@KD8ATF @ThrillScience Awesome! Definitely let me know a report of you hear it! I have 2 U4B I still have to eventually launch. I’m working on a stock of Traquito boards I have.
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@w3ipa @ThrillScience Awesome! I will listen for it! I just ordered 2 u4b tracker from Hans.
Bel Air, MD 🇺🇸 English












