Carl, Thanks for the suggestion. Having studied arcs and sparks in gases for forty-five years I understand corona discharge and steps to eliminate the effect. However, we have flown this specific

Hi, This is Carl WA4ADG. When operating aGeiger counter or any high voltage device in a reduced atmospheric pressurethere is a rang of pressure where the air breaks down and conducts heavily.This

BASE 110 flight was very close to predictions, except for the burst altitude. The predicted burst was 27 km (88 kft) and the ascent reached 30 km(100 kft). Landing was in corn on the Shelby-Johnson

W9YJ-13 was/is on aprs.fi. Reached 100 kft. We had issues with -12. Flight is over and everything is retrieved. Sorry that you missed it.

aprs.fi doesn't show anything. Did it launch? -----------------------------------------From: "Christopher Rose" To: "GPSL@groups.io" Cc: Sent: Monday June 27 2022 11:00:43PM Subject: Re: [GPSL] BASE

Thanks and good luck -----------------------------------------From: "BASE_DePauw" To: GPSL@groups.io Cc: Sent: Monday June 27 2022 6:58:19PM Subject: Re: [GPSL] BASE 110 Christopher, All details

Christopher, All details are on arhab.org. I failed to copy them to the list email. Launch site will be the roof of the Julian Science and Mathematics Center on the DePauw campus in Greencastle,

What or where is the launch site? -----------------------------------------From: "BASE_DePauw" To: GPSL@groups.io Cc: Sent: Monday June 27 2022 2:48:33PM Subject: [GPSL] BASE 110 BASE DePauw

BASE DePauw is flying again tomorrow. Release should be close to 12:30 UTC on 28 June. The primary purpose is to flight test the new Geiger counter array with attached altimeter, barometer, and

Howard: Just checked wsprnet.org for W9YJ and no reports were under that call for the past 12 hours. Mark -- Mark Garrett

BASE 109 is almost completed. The payloads have been located, but it is in the treetops about 25 meters (80 feet) above ground level. It will be a fun retrieval. The flight did end somewhat earlier

Guess it had a leak and came back down. Sorry for the short flight. -- Mark Garrett Tri States Public Radio

What is up with the altitude or should I say the lack of reporting it? Mark -- Mark Garrett Tri States Public Radio WIUM Macomb, IL WIUW Warsaw, IL WVKC Galesburg, IL K292GR Burlington, IA

For BASE 109, correction on W9YJ-16, the call will be W9YJ-14. That will be the dual APRS and WSPR. Lighters only supports SSID of 15 or below. Howard -- Howard L. Brooks Professor of Physics and

BASE DePauw is planning on releasing a 300 gram Helium balloon around 1300 UTC on 21 June (tomorrow). The flight is a test run for some radios and the cutdown system. W9YJ-11, W9YJ-15 and W9YJ-16

Yes, I used to use APRSISCE in my chase car, and rely on habhub predictions. Since habhub performance has gotten really laggy, I don't use it anymore. I switched to using chasemapper

I developed chasemapper for this exact purpose a *long* time ago now: https://github.com/projecthorus/chasemapper This is what we use in our chase cars, and it lets us very reliably be at the landing

Joe, the HABhub tracker does this - it takes the transmitted data (position and altitude) from the balloon and corrects the predicted trajectory based on where the balloon currently is, how

I started looking at doing this but never finished it. Most people seem happy with habhub for predictions so I haven't done much with https://s3research.com/tools/flightpredictor/ lately. Michael

I remember many many years ago, One of the Flight prediction pages, was making a semi ummm HY-Brid system? Or it was I don't know. but see this was what it was gonna