Date   
Re: GPSL 2020 - 9-11 July 2020

Bill Brown
 

Sounds great to me too. Look forward to seeing you all at GPSL 2020. -Bill WB8ELK


On Sep 15, 2019, at 4:46 PM, Mark Conner N9XTN <mconner1@...> wrote:

Hi everyone,

GPSL 2020 is officially set for July 9-11.  Friday's events will be at the University of Nebraska-Omaha campus near 62nd and Dodge Streets in Omaha.

I know there are some who won't be able to make this date, but there appeared to be fewer conflicts for the July weekend than for Field Day weekend.

We will have events during the day on Thursday and a Thursday evening welcome dinner.  Lunch Friday will probably be at the student center on campus which is a short walk from the classroom.  We'll also have a dinner on Friday evening.

Hope to see you next summer!

73 de Mark N9XTN


Virus-free. www.avg.com

LYNQ Personal Trackers for HAB use

Clif Brown
 

I received my order for LYNQ trackers that I placed on Idegogo sometime in the last couple of years.

https://lynqme.com/

I had a chance to play with the devices, and I gotta say, I'm fairly impressed.

The use case for the device is a group of friends or family an outdoor event, ski trip, amusement park, etc.  The devices are paired with each other, and then you can use your device to find the distance and direction to any other paired device.

My thought was that this might be good for the "last mile" HAB recovery where APRS didn't work well after landing.

I put one device about three feet above the ground in my yeard and drove around the neighborhood with the paired device in my car.  Even inside the vehicle, I got reliable fixes up to a mile away.  I got intermittent fixes up to two and a half miles away.  This is in a North Atlanta suburb withs lots of trees and hills.  The devices themselves are small with internal omni-directional antennas.  

The UI on the device is very simple, it shows a distance and a direction (the devices have internal compasses).  If connectivity is lost, it says something like "Last seen x minutes ago" but will continue to give the distance and direction based on the most recent fix.

I think you probably could include a Lynq Tracker in a HAB payload and use it for recovery (disclaimer:  I've not tried that, so I can't comment if units will have issues with temperature or the GPS will become confused above a certain altitude, etc.)

The downside is the UI is clearly designed for the use case described above and not obviously "hackable."

I think the main takeaway is that this type of technology could be very helpful for HAB enthusiasts.

I've been playing around with LORA devices (which I think is technology the Lynq trackers use) and combined with my test with the Lynq trackers, I believe a telemetry and control system based on LORA could be very useful, even in the recovery phase.

I did send up a LORA transceiver on my last flight but the prototype was not as robust as needed and stopped working once the HAB was on the ground.   I think I'll beef up my prototypes and experiment some more on the next flight.

Cliff Brown
KW4CL




PBS series reveals great views of Earth from space, value of satellite photography

Hank Riley
 

[from the Washington Post]


PBS series reveals great views of Earth from space, value of satellite photography


By Erin Blakemore 
Oct. 19, 2019 at 8:00 a.m. EDT

If you’ve ever viewed a solar eclipse, you’re familiar with the neck-stiffening sensation of looking up as the sun is briefly overshadowed by the moon.

But what would the same eclipse look like if you viewed it from space? “Life From Above,” a four-part series from PBS and BBC Studios’s Natural History Unit, has the answer.




The show, which premieres at 10 p.m. Wednesday on PBS stations, showcases views of Earth from space — and also reveals the scientific importance of satellite photography.

The first satellites helped trigger a space race that stoked the Cold War. But cameras posted above Earth also make plenty of scientific contributions.

They allow scientists to measure oncoming storms and the extent of the flooding that follows. They help lead researchers to animal life in places that are hard to monitor or explore on land — such as Antarctica, where researchers can use satellite imagery to track penguin colonies using the brown color of their guano trails. And they capture the ebb and flow of animal and plant life.

Episode 1 of the series, “Moving Planet,” is filled with gorgeous imagery and breathtaking views. One of its highlights is footage of the 2017 solar eclipse taken from high-altitude weather balloons launched by schoolchildren and college students across the United States. (Not all satellite footage involves rockets.)

The live, near-space views of the eclipse flip traditional eclipse imagery on its head. Suddenly, the eclipse isn’t the sun disappearing behind the black disc of the Moon’s shadow — it’s the sweep of that shadow across the landscape. And imagery from the International Space Station shows the enormous shadow’s trajectory across the entire country, illustrating the scale of the celestial body.

Whether you watch for the scientific tidbits or just the pretty pictures of the planet, “Life From Above” offers plenty of eye candy — and a refreshing bit of perspective thanks to cameras that literally rise above daily life.

Windy Launch!

Joe WB9SBD
 


I have done many windy launches in our time. Like 40 Mph winds. BUT This is crazy!

The first launch is no big deal but the rest WOW!!!
https://youtu.be/C377l7pBkzA

Joe WB9SBD
--

The Original Rolling Ball Clock
Idle Tyme
Idle-Tyme.com
http://www.idle-tyme.com

Re: Windy Launch!

Garrett, Mark
 

Yea that last one just was ripped to shreds and the balloon did not strike anything.  

If you are into winter check out the 2020 Ice Phallus just started streaming today.  It is created by water condensation in a furnace exhaust.  Located in St. Cloud, MN.


On Mon, Nov 11, 2019 at 1:00 PM Joe WB9SBD <nss@...> wrote:

I have done many windy launches in our time. Like 40 Mph winds. BUT This is crazy!

The first launch is no big deal but the rest WOW!!!
https://youtu.be/C377l7pBkzA

Joe WB9SBD
--

The Original Rolling Ball Clock
Idle Tyme
Idle-Tyme.com
http://www.idle-tyme.com



--
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

ARHAB web page

tony everhardt
 

Does anyone know anything about the ARHAB website? I've sent a couple of emails the past 9 months or so wondering about the Record Holders section. I can't seem to get any replies. Is ARHAB active anymore?

Tony/N8WAC

Re: ARHAB web page

Carlton Corbitt
 

Hi Tony,

Happy Thanksgiving

I don't know, its kept up out of a labor of love by volunteers.   I wasn't at GPSL so i don't know the latest.

Carlton
KI4NHK

Re: ARHAB web page

Michael West W5MAW
 

Hey,

I manage the website, you can see my callsign and email on the front page. Apologies if I didn't send you a response to the record email. I've been collecting new records via email but I've been focusing more on maintaining the site and cleaning up and replacing old code.

Currently there doesn't seem to be a big demand for records. At GPSL last year I asked the group how record keeping should work going forward and got very little feedback.

If people still care about the records I could make some new submission rules and move them to a Google Drive spreadsheet so they're easy to update. The old site and records are still up of course and haven't changed much.

Cheers,

--
Michael West W5MAW


From: GPSL@groups.io <GPSL@groups.io> on behalf of Carlton Corbitt via Groups.Io <ccccrnr@...>
Sent: Friday, November 29, 2019 11:37:08 PM
To: GPSL@groups.io <GPSL@groups.io>
Subject: Re: [GPSL] ARHAB web page
 
Hi Tony,

Happy Thanksgiving

I don't know, its kept up out of a labor of love by volunteers.   I wasn't at GPSL so i don't know the latest.

Carlton
KI4NHK

Re: ARHAB web page

tony everhardt
 

Hello Mike,

 I personally would like to see the Records going. I have to admit I'm bias on this. If nothing changed KD0FW and myself should still be number one on Earth Balloon Earth. Every now and then I tell people about it but can't find the records so they can see it. I was just wondering. Don't do it just for me if its too much trouble. 

N8WAC/Tony

On Friday, November 29, 2019, 07:42:18 PM EST, Michael West W5MAW <michael@...> wrote:


Hey,

I manage the website, you can see my callsign and email on the front page. Apologies if I didn't send you a response to the record email. I've been collecting new records via email but I've been focusing more on maintaining the site and cleaning up and replacing old code.

Currently there doesn't seem to be a big demand for records. At GPSL last year I asked the group how record keeping should work going forward and got very little feedback.

If people still care about the records I could make some new submission rules and move them to a Google Drive spreadsheet so they're easy to update. The old site and records are still up of course and haven't changed much.

Cheers,

--
Michael West W5MAW


From: GPSL@groups.io <GPSL@groups.io> on behalf of Carlton Corbitt via Groups.Io <ccccrnr@...>
Sent: Friday, November 29, 2019 11:37:08 PM
To: GPSL@groups.io <GPSL@groups.io>
Subject: Re: [GPSL] ARHAB web page
 
Hi Tony,

Happy Thanksgiving

I don't know, its kept up out of a labor of love by volunteers.   I wasn't at GPSL so i don't know the latest.

Carlton
KI4NHK

Re: ARHAB web page

BASE_DePauw
 

Tony,

The records are still found on old.arhab.org.  When you click on a record, there are many error lines, before the records appears but you can still find the list down the page.

Howard, KC9QBN
BASE_DePauw

P.S. - I may try to run the cross band repeater from Rantoul again next summer on 8 August 2020.


On Sat, Nov 30, 2019 at 8:01 PM tony everhardt via Groups.Io <n8wac=yahoo.com@groups.io> wrote:
Hello Mike,

 I personally would like to see the Records going. I have to admit I'm bias on this. If nothing changed KD0FW and myself should still be number one on Earth Balloon Earth. Every now and then I tell people about it but can't find the records so they can see it. I was just wondering. Don't do it just for me if its too much trouble. 

N8WAC/Tony
On Friday, November 29, 2019, 07:42:18 PM EST, Michael West W5MAW <michael@...> wrote:


Hey,

I manage the website, you can see my callsign and email on the front page. Apologies if I didn't send you a response to the record email. I've been collecting new records via email but I've been focusing more on maintaining the site and cleaning up and replacing old code.

Currently there doesn't seem to be a big demand for records. At GPSL last year I asked the group how record keeping should work going forward and got very little feedback.

If people still care about the records I could make some new submission rules and move them to a Google Drive spreadsheet so they're easy to update. The old site and records are still up of course and haven't changed much.

Cheers,

--
Michael West W5MAW


From: GPSL@groups.io <GPSL@groups.io> on behalf of Carlton Corbitt via Groups.Io <ccccrnr=aol.com@groups.io>
Sent: Friday, November 29, 2019 11:37:08 PM
To: GPSL@groups.io <GPSL@groups.io>
Subject: Re: [GPSL] ARHAB web page
 
Hi Tony,

Happy Thanksgiving

I don't know, its kept up out of a labor of love by volunteers.   I wasn't at GPSL so i don't know the latest.

Carlton
KI4NHK



--
Howard L. Brooks
Professor of Physics and Astronomy
241 Julian Science and Mathematics Center
DePauw University
2 E. Hanna Street
Greencastle, IN 46135
hlbrooks@...
Office: (765) 658-4653
FAX: (765) 658-4732

Student Experiment Advice

Mike, n0mpm
 

I have a team of high school seniors interested in trying to collect and look for atmospheric particles at 70k feet and above.  Has anyone tried doing this and if so any advice on how to design this type of experiment (without breaking the bank on complexity, weight and cost)??
thanks
mike  PENS

Re: Student Experiment Advice

L. Paul Verhage KD4STH
 

The way I tried to do this is with a petri dish that was opened up by a servo at high altitude. 

I think a petri dish is too small so I would make a large expanded foam petri dish, perhaps a foot across. Spray the interior with sticky glue and then have a servo keep the lid shut until the balloonbgets to a high enough altitude. You want to make sure to shut the lid before the balloon burst because the balloon will drop talcum powder and latex fragments that will contaminate your results.

On Wed, Dec 4, 2019, 3:02 PM Mike, n0mpm <morgamp52@...> wrote:
I have a team of high school seniors interested in trying to collect and look for atmospheric particles at 70k feet and above.  Has anyone tried doing this and if so any advice on how to design this type of experiment (without breaking the bank on complexity, weight and cost)??
thanks
mike  PENS

Re: ARHAB web page

tony everhardt
 

Hello Howard

I went to the old record books that you suggested and it was down. Oh well......you, Mike and myself know that we all hold the record Thanks to your balloon. We also have my Youtube for proof. I'll be looking forward to working your balloon in 2020. 

N8WAC/Tony

On Monday, December 2, 2019, 10:37:17 AM EST, BASE_DePauw <hlbrooks@...> wrote:


Tony,

The records are still found on old.arhab.org.  When you click on a record, there are many error lines, before the records appears but you can still find the list down the page.

Howard, KC9QBN
BASE_DePauw

P.S. - I may try to run the cross band repeater from Rantoul again next summer on 8 August 2020.

On Sat, Nov 30, 2019 at 8:01 PM tony everhardt via Groups.Io <n8wac=yahoo.com@groups.io> wrote:
Hello Mike,

 I personally would like to see the Records going. I have to admit I'm bias on this. If nothing changed KD0FW and myself should still be number one on Earth Balloon Earth. Every now and then I tell people about it but can't find the records so they can see it. I was just wondering. Don't do it just for me if its too much trouble. 

N8WAC/Tony
On Friday, November 29, 2019, 07:42:18 PM EST, Michael West W5MAW <michael@...> wrote:


Hey,

I manage the website, you can see my callsign and email on the front page. Apologies if I didn't send you a response to the record email. I've been collecting new records via email but I've been focusing more on maintaining the site and cleaning up and replacing old code.

Currently there doesn't seem to be a big demand for records. At GPSL last year I asked the group how record keeping should work going forward and got very little feedback.

If people still care about the records I could make some new submission rules and move them to a Google Drive spreadsheet so they're easy to update. The old site and records are still up of course and haven't changed much.

Cheers,

--
Michael West W5MAW


From: GPSL@groups.io <GPSL@groups.io> on behalf of Carlton Corbitt via Groups.Io <ccccrnr=aol.com@groups.io>
Sent: Friday, November 29, 2019 11:37:08 PM
To: GPSL@groups.io <GPSL@groups.io>
Subject: Re: [GPSL] ARHAB web page
 
Hi Tony,

Happy Thanksgiving

I don't know, its kept up out of a labor of love by volunteers.   I wasn't at GPSL so i don't know the latest.

Carlton
KI4NHK



--
Howard L. Brooks
Professor of Physics and Astronomy
241 Julian Science and Mathematics Center
DePauw University
2 E. Hanna Street
Greencastle, IN 46135
hlbrooks@...
Office: (765) 658-4653
FAX: (765) 658-4732

Re: ARHAB web page

Steve Aerospace
 

Wow 797miles (1283Km) is pretty impressive.   I assume the great circle distance being referred to is the direct ground distance between the ground stations - rather than adding up the two halves.

Do data QSOs count?   and    ground-balloon-balloon-ground ?

    Steve G8KHW

On 01/12/2019 01:01, tony everhardt via Groups.Io wrote:
Hello Mike,

 I personally would like to see the Records going. I have to admit I'm bias on this. If nothing changed KD0FW and myself should still be number one on Earth Balloon Earth. Every now and then I tell people about it but can't find the records so they can see it. I was just wondering. Don't do it just for me if its too much trouble. 

N8WAC/Tony
On Friday, November 29, 2019, 07:42:18 PM EST, Michael West W5MAW <michael@...> wrote:


Hey,

I manage the website, you can see my callsign and email on the front page. Apologies if I didn't send you a response to the record email. I've been collecting new records via email but I've been focusing more on maintaining the site and cleaning up and replacing old code.

Currently there doesn't seem to be a big demand for records. At GPSL last year I asked the group how record keeping should work going forward and got very little feedback.

If people still care about the records I could make some new submission rules and move them to a Google Drive spreadsheet so they're easy to update. The old site and records are still up of course and haven't changed much.

Cheers,

--
Michael West W5MAW


From: GPSL@groups.io <GPSL@groups.io> on behalf of Carlton Corbitt via Groups.Io <ccccrnr@...>
Sent: Friday, November 29, 2019 11:37:08 PM
To: GPSL@groups.io <GPSL@groups.io>
Subject: Re: [GPSL] ARHAB web page
 
Hi Tony,

Happy Thanksgiving

I don't know, its kept up out of a labor of love by volunteers.   I wasn't at GPSL so i don't know the latest.

Carlton
KI4NHK
-- 
Steve Randall
Random Engineering Ltd
steve@...
+44 7802 242135

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Mark Conner N9XTN