Date   

Re: GPS-320FW(AS) failed at 39986 feet.

Michael Hojnowski
 

One other thought.  If the GPS module has a button battery to keep the parameters cached, perhaps the battery wore out?  I had that happen with one GPS, and it defaulted back to non-airborne mode.

Mike / KD2EAT

On 7/25/2022 11:08 AM, Bruce Coates wrote:
Hi Kip

This isn't one that's affected the 18km limit.  It normally has an altitude limit of 25km but this is one with the high altitude firmware that works well above 30km.  As I mentioned, this tracker and GPS has been successfully on our previous flights.

I did come across some mentions of this unit being affected by the April 2019 date roll-over.  Although we've used it in the past, thanks to COVID, the last successful flight with it was before that.  Hmmmmmmmmmmmmm

I also live the UBlox GPSs and I also use them exclusively now.  I think the ham that built this one is also going to switch to a UBlox one.

73, Bruce

On 2022-07-25 6:51 a.m., AE5IB (Kip) wrote:
Yes.

Some GPS brands stop working between 32000 and 40000 feet.

There was a rule that said a consumer GPS can not work above something like 32000 feet or above a certain speed. It was to prevent cheep GPS units to work on enemy missiles.

Some manufacturers read it as a certain height OR a certain speed, not AND.

I prefer the UBlox GPS because it has modes you can set with their configuration program.  (Free download) Aircraft 1 mode is for a slower aircraft. Still faster than a balloon but the slowest of the aircraft modes. I have had it up to 132,000 feet.

It comes with automobile mode as default, so you have to change it.

None will work over a certain height. I think it is 160,000 feet. Again because of military rules.

Kip




Re: GPS-320FW(AS) failed at 39986 feet.

Bruce Coates <bruce.coates@...>
 

Hi Kip

This isn't one that's affected the 18km limit.  It normally has an altitude limit of 25km but this is one with the high altitude firmware that works well above 30km.  As I mentioned, this tracker and GPS has been successfully on our previous flights.

I did come across some mentions of this unit being affected by the April 2019 date roll-over.  Although we've used it in the past, thanks to COVID, the last successful flight with it was before that.  Hmmmmmmmmmmmmm

I also live the UBlox GPSs and I also use them exclusively now.  I think the ham that built this one is also going to switch to a UBlox one.

73, Bruce

On 2022-07-25 6:51 a.m., AE5IB (Kip) wrote:
Yes.

Some GPS brands stop working between 32000 and 40000 feet.

There was a rule that said a consumer GPS can not work above something like 32000 feet or above a certain speed. It was to prevent cheep GPS units to work on enemy missiles.

Some manufacturers read it as a certain height OR a certain speed, not AND.

I prefer the UBlox GPS because it has modes you can set with their configuration program.  (Free download) Aircraft 1 mode is for a slower aircraft. Still faster than a balloon but the slowest of the aircraft modes. I have had it up to 132,000 feet.

It comes with automobile mode as default, so you have to change it.

None will work over a certain height. I think it is 160,000 feet. Again because of military rules.

Kip


Re: GPS-320FW(AS) failed at 39986 feet.

AE5IB (Kip)
 

Yes. 

Some GPS brands stop working between 32000 and 40000 feet. 

There was a rule that said a consumer GPS can not work above something like 32000 feet or above a certain speed. It was to prevent cheep GPS units to work on enemy missiles.

Some manufacturers read it as a certain height OR a certain speed, not AND. 

I prefer the UBlox GPS because it has modes you can set with their configuration program.  (Free download) Aircraft 1 mode is for a slower aircraft. Still faster than a balloon but the slowest of the aircraft modes. I have had it up to 132,000 feet. 

It comes with automobile mode as default, so you have to change it.

None will work over a certain height. I think it is 160,000 feet. Again because of military rules. 

Kip

On Sun, Jul 24, 2022, 10:15 PM Bruce Coates <bruce.coates@...> wrote:
Hi

An interesting thing happened on our SABRE-31 flight yesterday.  Our VE5AA-12 tracker gps failed at or near 39986 feet.  The tracker is using a GT320FW(AS) that's been flown before and worked fine.  Has anyone else seen this behaviour with this GPS?

Thanks

Bruce - VE5BNC


GPS-320FW(AS) failed at 39986 feet.

Bruce Coates <bruce.coates@...>
 

Hi

An interesting thing happened on our SABRE-31 flight yesterday.  Our VE5AA-12 tracker gps failed at or near 39986 feet.  The tracker is using a GT320FW(AS) that's been flown before and worked fine.  Has anyone else seen this behaviour with this GPS?

Thanks

Bruce - VE5BNC


Re: The SuperLaunch.org website is down

Zack Clobes W0ZC
 

Thank you Bill!

Zack

On Sun, Jul 24, 2022, 4:51 PM <wb8elk@...> wrote:
The Domain Renewal has reactivated Superlaunch.org   It is now up and running again.

- BIll WB8ELK


-----Original Message-----
From: Zack Clobes W0ZC <zclobes@...>
To: GPSL@groups.io
Sent: Fri, Jul 22, 2022 4:55 pm
Subject: [GPSL] The SuperLaunch.org website is down

We're working to get the issue resolved. I don't have an ETA at the moment, but hopefully it will be back up yet this weekend.



Zack Clobes, W0ZC
Project: Traveler
www.projecttraveler.org

Join us on Facebook for the latest information:



Project: Traveler is a research project of Custom Digital Services, LLC.


Re: The SuperLaunch.org website is down

Bill Brown
 

The Domain Renewal has reactivated Superlaunch.org   It is now up and running again.

- BIll WB8ELK


-----Original Message-----
From: Zack Clobes W0ZC <zclobes@...>
To: GPSL@groups.io
Sent: Fri, Jul 22, 2022 4:55 pm
Subject: [GPSL] The SuperLaunch.org website is down

We're working to get the issue resolved. I don't have an ETA at the moment, but hopefully it will be back up yet this weekend.



Zack Clobes, W0ZC
Project: Traveler
www.projecttraveler.org

Join us on Facebook for the latest information:



Project: Traveler is a research project of Custom Digital Services, LLC.


Re: The SuperLaunch.org website is down

Bill Brown
 

Superlaunch should be up and running in a few hours.  

- Bill WB8ELK


-----Original Message-----
From: Zack Clobes W0ZC <zclobes@...>
To: GPSL@groups.io
Sent: Fri, Jul 22, 2022 4:55 pm
Subject: [GPSL] The SuperLaunch.org website is down

We're working to get the issue resolved. I don't have an ETA at the moment, but hopefully it will be back up yet this weekend.



Zack Clobes, W0ZC
Project: Traveler
www.projecttraveler.org

Join us on Facebook for the latest information:



Project: Traveler is a research project of Custom Digital Services, LLC.


The SuperLaunch.org website is down

Zack Clobes W0ZC
 

We're working to get the issue resolved. I don't have an ETA at the moment, but hopefully it will be back up yet this weekend.



Zack Clobes, W0ZC
Project: Traveler
www.projecttraveler.org

Join us on Facebook for the latest information:



Project: Traveler is a research project of Custom Digital Services, LLC.


Re: BASE 113 on 21 June

BASE_DePauw
 

I will be sharing the flight log files with the manufacturer to see if we can determine why the device shut off prematurely.

On Thu, Jul 21, 2022 at 6:58 PM Hank Riley via groups.io <n1ltv=yahoo.com@groups.io> wrote:
Any idea why that would happen?
______________________________________________


The altitude cutoff device shut down before reaching 15 km.  

Howard



--
Howard L. Brooks
Professor of Physics and Astronomy
241 Julian Science and Mathematics Center
DePauw University
2 E. Hanna Street
Greencastle, IN 46135
(765) 658-4653
hlbrooks@...


Re: BASE 113 on 21 June

Hank Riley
 

Any idea why that would happen?
______________________________________________


The altitude cutoff device shut down before reaching 15 km.  

Howard


Re: BASE 113 on 21 June

BASE_DePauw
 

Mark,

Yes, I changed back to feet for APRS reporting.

The altitude cutoff device shut down before reaching 15 km.  The change at 26 km occurred when the first balloon burst.  Not quite the plan, but still an interesting flight.  We brought back both balloon necks to the ground.

Thanks for the grafana dashboard.  It is wonderful.

Howard

On Thu, Jul 21, 2022 at 6:10 PM Mark Jessop <vk5qi@...> wrote:
Looking at the dashboards:

.. it looks like the balloon cutaway occurred at 26km, not 15km? Very obvious change in ascent rate visible.

At least the altitude is being reported correctly on this flight :-)

73
Mark VK5QI

On Fri, Jul 22, 2022 at 1:33 AM BASE_DePauw <hlbrooks@...> wrote:
Yes, we were lucky and could reach it with the Wonder Pole extended to 30 feet.

We will see what happens today.

Howard

On Thu, Jul 21, 2022, 10:47 AM Garrett, Mark <ma-garrett@...> wrote:
Were you able to recover your last flight Howard?  Last I saw it landed in a wooded area.

Mark

On Wed, Jul 20, 2022 at 7:57 PM BASE_DePauw <hlbrooks@...> wrote:
BASE 113 plans to fly tomorrow at 1400 UTC (10 AM EDT) from North Montgomery Schools in Cherry Grove, Indiana.  

Tandem balloons, each 600 grams, equal lift, planning to cut one away at 15 km (50000 feet).  Initial ascent around 6 m/s (1200 ft/min) and then decrease to 2 m/s (400 ft/min)  Geiger array to explore the middle layers of the stratosphere.

Call signs are W9YJ-11 and W9YJ-13.

Thanks for the support,
Howard

--
Howard L. Brooks
Professor of Physics and Astronomy
241 Julian Science and Mathematics Center
DePauw University
2 E. Hanna Street
Greencastle, IN 46135
(765) 658-4653
hlbrooks@...



--
Mark Garrett
Tri States Public Radio
WIUM Macomb, IL
WIUW Warsaw, IL
WVKC Galesburg, IL
K292GR Burlington, IA
Office (309) 298-1104
Cell    (309) 255-6987
Fax    (309) 298-2133



--
Howard L. Brooks
Professor of Physics and Astronomy
241 Julian Science and Mathematics Center
DePauw University
2 E. Hanna Street
Greencastle, IN 46135
(765) 658-4653
hlbrooks@...


Re: BASE 113 on 21 June

Mark Jessop
 

Looking at the dashboards:

.. it looks like the balloon cutaway occurred at 26km, not 15km? Very obvious change in ascent rate visible.

At least the altitude is being reported correctly on this flight :-)

73
Mark VK5QI

On Fri, Jul 22, 2022 at 1:33 AM BASE_DePauw <hlbrooks@...> wrote:
Yes, we were lucky and could reach it with the Wonder Pole extended to 30 feet.

We will see what happens today.

Howard

On Thu, Jul 21, 2022, 10:47 AM Garrett, Mark <ma-garrett@...> wrote:
Were you able to recover your last flight Howard?  Last I saw it landed in a wooded area.

Mark

On Wed, Jul 20, 2022 at 7:57 PM BASE_DePauw <hlbrooks@...> wrote:
BASE 113 plans to fly tomorrow at 1400 UTC (10 AM EDT) from North Montgomery Schools in Cherry Grove, Indiana.  

Tandem balloons, each 600 grams, equal lift, planning to cut one away at 15 km (50000 feet).  Initial ascent around 6 m/s (1200 ft/min) and then decrease to 2 m/s (400 ft/min)  Geiger array to explore the middle layers of the stratosphere.

Call signs are W9YJ-11 and W9YJ-13.

Thanks for the support,
Howard

--
Howard L. Brooks
Professor of Physics and Astronomy
241 Julian Science and Mathematics Center
DePauw University
2 E. Hanna Street
Greencastle, IN 46135
(765) 658-4653
hlbrooks@...



--
Mark Garrett
Tri States Public Radio
WIUM Macomb, IL
WIUW Warsaw, IL
WVKC Galesburg, IL
K292GR Burlington, IA
Office (309) 298-1104
Cell    (309) 255-6987
Fax    (309) 298-2133


Re: BASE 113 on 21 June

BASE_DePauw
 

Yes, we were lucky and could reach it with the Wonder Pole extended to 30 feet.

We will see what happens today.

Howard

On Thu, Jul 21, 2022, 10:47 AM Garrett, Mark <ma-garrett@...> wrote:
Were you able to recover your last flight Howard?  Last I saw it landed in a wooded area.

Mark

On Wed, Jul 20, 2022 at 7:57 PM BASE_DePauw <hlbrooks@...> wrote:
BASE 113 plans to fly tomorrow at 1400 UTC (10 AM EDT) from North Montgomery Schools in Cherry Grove, Indiana.  

Tandem balloons, each 600 grams, equal lift, planning to cut one away at 15 km (50000 feet).  Initial ascent around 6 m/s (1200 ft/min) and then decrease to 2 m/s (400 ft/min)  Geiger array to explore the middle layers of the stratosphere.

Call signs are W9YJ-11 and W9YJ-13.

Thanks for the support,
Howard

--
Howard L. Brooks
Professor of Physics and Astronomy
241 Julian Science and Mathematics Center
DePauw University
2 E. Hanna Street
Greencastle, IN 46135
(765) 658-4653
hlbrooks@...



--
Mark Garrett
Tri States Public Radio
WIUM Macomb, IL
WIUW Warsaw, IL
WVKC Galesburg, IL
K292GR Burlington, IA
Office (309) 298-1104
Cell    (309) 255-6987
Fax    (309) 298-2133


Re: BASE 113 on 21 June

Garrett, Mark
 

Were you able to recover your last flight Howard?  Last I saw it landed in a wooded area.

Mark

On Wed, Jul 20, 2022 at 7:57 PM BASE_DePauw <hlbrooks@...> wrote:
BASE 113 plans to fly tomorrow at 1400 UTC (10 AM EDT) from North Montgomery Schools in Cherry Grove, Indiana.  

Tandem balloons, each 600 grams, equal lift, planning to cut one away at 15 km (50000 feet).  Initial ascent around 6 m/s (1200 ft/min) and then decrease to 2 m/s (400 ft/min)  Geiger array to explore the middle layers of the stratosphere.

Call signs are W9YJ-11 and W9YJ-13.

Thanks for the support,
Howard

--
Howard L. Brooks
Professor of Physics and Astronomy
241 Julian Science and Mathematics Center
DePauw University
2 E. Hanna Street
Greencastle, IN 46135
(765) 658-4653
hlbrooks@...



--
Mark Garrett
Tri States Public Radio
WIUM Macomb, IL
WIUW Warsaw, IL
WVKC Galesburg, IL
K292GR Burlington, IA
Office (309) 298-1104
Cell    (309) 255-6987
Fax    (309) 298-2133


BASE 113 on 21 June

BASE_DePauw
 

BASE 113 plans to fly tomorrow at 1400 UTC (10 AM EDT) from North Montgomery Schools in Cherry Grove, Indiana.  

Tandem balloons, each 600 grams, equal lift, planning to cut one away at 15 km (50000 feet).  Initial ascent around 6 m/s (1200 ft/min) and then decrease to 2 m/s (400 ft/min)  Geiger array to explore the middle layers of the stratosphere.

Call signs are W9YJ-11 and W9YJ-13.

Thanks for the support,
Howard

--
Howard L. Brooks
Professor of Physics and Astronomy
241 Julian Science and Mathematics Center
DePauw University
2 E. Hanna Street
Greencastle, IN 46135
(765) 658-4653
hlbrooks@...


BASE 112 on 19 July

BASE_DePauw
 

BASE 112 will be released about 8:30 EDT (12:30 UTC) on Tuesday, July 19 from the roof of the Julian Science and Mathematics Center on the DePauw University campus in Greencastle Indiana.

Tandem balloon launch. Initial ascent rate of 5 m/s.  350 gram balloon should cut away at 15 km using the HAB Bounder from Balloon Ascent Technologies.  600 gram balloon should carry our Geiger counter array up to 30 km.  Hoping 600 gram solo ascent at 1.5 m/s  between 15 and 30 km.

APRS beacons W9YJ-11 and W9YJ-13  (from BigRedBee) operating at 144.39 MHz.

Flight predicted to head basically south until reaching the turnaround winds in the lower stratosphere.  Landing predicted to be in east central Illinois southwest of Terre Haute.

Thanks for the support,
Howard

--
Howard L. Brooks
Professor of Physics and Astronomy
241 Julian Science and Mathematics Center
DePauw University
2 E. Hanna Street
Greencastle, IN 46135
(765) 658-4653
hlbrooks@...


Re: SWIRLL Launch captured by roof cam.

Bruce Coates <bruce.coates@...>
 

Did it again.  The original JPG gets converted top a tiny 47k version.  Like converting $CAN to $US but way worse.  ;-)

Trying a ZIPed version now.

Bruce - VE5BNC

On 2022-07-16 6:47 p.m., Bruce Coates wrote:
Ok, that's weird.  I uploaded the 4.7 MB file but it appeared as just a 47kB thumbnail.

Trying again.



On 2022-07-16 6:27 p.m., wb8elk@... wrote:
Excellent. Thanks for grabbing this Bruce !!

- Bill WB8ELK


-----Original Message-----
From: Bruce Coates <bruce.coates@...>
To: GPSL@groups.io
Sent: Sat, Jul 16, 2022 10:08 am
Subject: [GPSL] SWIRLL Launch captured by roof cam.

Hi

The SWIRLL rooftop camera captured this just a moment before launch.

73, Bruce - VE5BNC




Re: SWIRLL Launch captured by roof cam.

Bruce Coates <bruce.coates@...>
 

Ok, that's weird.  I uploaded the 4.7 MB file but it appeared as just a 47kB thumbnail.

Trying again.

On 2022-07-16 6:27 p.m., wb8elk@... wrote:
Excellent. Thanks for grabbing this Bruce !!

- Bill WB8ELK


-----Original Message-----
From: Bruce Coates <bruce.coates@...>
To: GPSL@groups.io
Sent: Sat, Jul 16, 2022 10:08 am
Subject: [GPSL] SWIRLL Launch captured by roof cam.

Hi

The SWIRLL rooftop camera captured this just a moment before launch.

73, Bruce - VE5BNC




Re: SWIRLL Launch captured by roof cam.

Bill Brown
 

Hi Mark,

  I wrote the script so I will try directly uploading using the pysondehub library.  Thanks for sending this info !!

- Bill WB8ELK


-----Original Message-----
From: Mark Jessop <vk5qi@...>
To: GPSL@groups.io
Sent: Sat, Jul 16, 2022 7:33 pm
Subject: Re: [GPSL] SWIRLL Launch captured by roof cam.

Hi Bill,

Is this script available online anywhere? If you're using python it wouldn't be that difficult to send data to amateur.sondehub.org directly using the pysondehub library. Usage of this is documented here: https://github.com/projecthorus/pysondehub/wiki/SondeHub-Amateur-Uploader-Class-Usage

This way any telemetry information will get displayed properly, instead of just languishing in a comment field somewhere. I'd suggest using a different callsign to what is uploaded through APRS though, else things could get a bit weird on the tracker.

Cheers,
Mark VK5QI

On Sun, Jul 17, 2022 at 10:00 AM Bill Brown via groups.io <wb8elk=aol.com@groups.io> wrote:
The UAH Balloon launched from the SWIRLL building has the callsign of W4CQD-2 on APRS.FItracker.habhub.org and amateur.sondehub.org.

On WSPRnet.org look for KN4TPG since this balloon is transmitting on the 20m WSPR band with that callsign.  I port that data to the APRS tracking sites via a Python script.

- Bill WB8ELK


-----Original Message-----
From: Christopher Rose <kb8uih88@...>
To: 'GPSL@groups.io' <GPSL@groups.io>
Sent: Sat, Jul 16, 2022 12:05 pm
Subject: Re: [GPSL] SWIRLL Launch captured by roof cam.

What is the balloon call?


-----------------------------------------
From: "Bruce Coates"
To: GPSL@groups.io
Cc:
Sent: Saturday July 16 2022 11:08:56AM
Subject: [GPSL] SWIRLL Launch captured by roof cam.

Hi

The SWIRLL rooftop camera captured this just a moment before launch.

73, Bruce - VE5BNC







Re: SWIRLL Launch captured by roof cam.

Mark Jessop
 

Hi Bill,

Is this script available online anywhere? If you're using python it wouldn't be that difficult to send data to amateur.sondehub.org directly using the pysondehub library. Usage of this is documented here: https://github.com/projecthorus/pysondehub/wiki/SondeHub-Amateur-Uploader-Class-Usage

This way any telemetry information will get displayed properly, instead of just languishing in a comment field somewhere. I'd suggest using a different callsign to what is uploaded through APRS though, else things could get a bit weird on the tracker.

Cheers,
Mark VK5QI

On Sun, Jul 17, 2022 at 10:00 AM Bill Brown via groups.io <wb8elk=aol.com@groups.io> wrote:
The UAH Balloon launched from the SWIRLL building has the callsign of W4CQD-2 on APRS.FItracker.habhub.org and amateur.sondehub.org.

On WSPRnet.org look for KN4TPG since this balloon is transmitting on the 20m WSPR band with that callsign.  I port that data to the APRS tracking sites via a Python script.

- Bill WB8ELK


-----Original Message-----
From: Christopher Rose <kb8uih88@...>
To: 'GPSL@groups.io' <GPSL@groups.io>
Sent: Sat, Jul 16, 2022 12:05 pm
Subject: Re: [GPSL] SWIRLL Launch captured by roof cam.

What is the balloon call?


-----------------------------------------
From: "Bruce Coates"
To: GPSL@groups.io
Cc:
Sent: Saturday July 16 2022 11:08:56AM
Subject: [GPSL] SWIRLL Launch captured by roof cam.

Hi

The SWIRLL rooftop camera captured this just a moment before launch.

73, Bruce - VE5BNC






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