Date   

Re: VA5BNC-15 will be gently landing in Georgia

Bruce Coates
 

Thanks Hank

Sounds like a nice place.  I'm sure my balloon wil be happy there.  ;-)

Bruce


-------- Original message --------
From: "Hank Riley via groups.io" <n1ltv@...>
Date: 7/14/20 2:13 AM (GMT-06:00)
To: GPSL@groups.io
Subject: Re: [GPSL] VA5BNC-15 will be gently landing in Georgia

This bird couldn't have hardly landed in a better place in the southeast US except if it's so obvious and available that someone has already found it.  I was also working on the general location this morning.

Even the wooded areas right near the school and town are almost all tree farms that are meticulously groomed with zero underbrush, and scientifically spaced for rapid growth and high timber yield at harvest time.  Super easy to walk through those groves.

I believe the school is Lincoln County Elementary School, a parallel to the like-named Lincoln County High School close by to the southeast.

The entire count has a population of only 8000 people; the town of Lincolnton, the county seat, has a population of 1600.

Bill, your gang might want to stop by the Lincoln County Sheriff's on Humphrey (other side of 378) first thing on arrival and contribute a little to the sheriff's favorite charity using the big glass pickle jar so labelled for that purpose located in the outer office right on the end of the big countertop.  The old one with the fancy wood inlay work, not the formica one.  Real good folk in Lincolnton for sure.


On Tuesday, July 14, 2020, 02:29:37 AM EDT, Bill wrote:

Bruce....I have the landing site estimated within a mile or less:  33.7961 / -82.4943.  My guess is that it may be on the grounds of Lincolnton Elementary School in Lincolnton, GA.


Re: VA5BNC-15 will be gently landing in Georgia

Bruce Coates
 

Thanks Bill

It seems like a lot of work for 50 grams of mylar and pc board but if I could see a photo of it that would be amazing.

If the solar panel survived, which is unlikely, it will return to beaconning once per minute.  If it's on battery,  it will beacon roughly every 15 minutes with a path of WIDE1-1 and is designed to run for 24 hours or more on the battery.  Of course if it rains, it probably won't survive.

73, Bruce


-------- Original message --------
From: "Bill Brown via groups.io" <wb8elk@...>
Date: 7/14/20 12:29 AM (GMT-06:00)
To: GPSL@groups.io
Cc: bruce.coates@..., tommcelroy.mail@...
Subject: Re: [GPSL] VA5BNC-15 will be gently landing in Georgia

Bruce....I have the landing site estimated within a mile or less:  33.7961 / -82.4943.  My guess is that it may be on the grounds of Lincolnton Elementary School in Lincolnton, GA.

  I will see if I can round up some hams in GA to go listen for it tomorrow.

- Bill WB8ELK


Re: VA5BNC-15 will be gently landing in Georgia

Bruce Coates
 

Thanks Bill

It seems like a lot of work for 50 grams of mylar and pc board but if I could see a photo of it that would be amazing.

If the solar panel survived, which is unlikely, it will return to beaconning once per minute.  If it's on battery,  it will beacon roughly every 15 minutes with a path of WIDE1-1 and is designed to run for 24 hours or more on the battery.  Of course if it rains, it probably won't survive.

73, Bruce


Re: VA5BNC-15 will be gently landing in Georgia

Hank Riley
 

This bird couldn't have hardly landed in a better place in the southeast US except if it's so obvious and available that someone has already found it.  I was also working on the general location this morning.

Even the wooded areas right near the school and town are almost all tree farms that are meticulously groomed with zero underbrush, and scientifically spaced for rapid growth and high timber yield at harvest time.  Super easy to walk through those groves.

I believe the school is Lincoln County Elementary School, a parallel to the like-named Lincoln County High School close by to the southeast.

The entire count has a population of only 8000 people; the town of Lincolnton, the county seat, has a population of 1600.

Bill, your gang might want to stop by the Lincoln County Sheriff's on Humphrey (other side of 378) first thing on arrival and contribute a little to the sheriff's favorite charity using the big glass pickle jar so labelled for that purpose located in the outer office right on the end of the big countertop.  The old one with the fancy wood inlay work, not the formica one.  Real good folk in Lincolnton for sure.


On Tuesday, July 14, 2020, 02:29:37 AM EDT, Bill wrote:

Bruce....I have the landing site estimated within a mile or less:  33.7961 / -82.4943.  My guess is that it may be on the grounds of Lincolnton Elementary School in Lincolnton, GA.


Re: VA5BNC-15 will be gently landing in Georgia

Bill Brown
 

Bruce....I have the landing site estimated within a mile or less:  33.7961 / -82.4943.  My guess is that it may be on the grounds of Lincolnton Elementary School in Lincolnton, GA.

  I will see if I can round up some hams in GA to go listen for it tomorrow.

- Bill WB8ELK


-----Original Message-----
From: Bruce Coates <bruce.coates@...>
To: GPSL@groups.io
Sent: Mon, Jul 13, 2020 11:22 pm
Subject: [GPSL] VA5BNC-15 will be gently landing in Georgia

Hi

It looks like VA5BNC-15 started descending at about 01:00 UTC at a
pretty constant rate of about 70 feet per minute.  At this rate it will
be on the ground in eastern Georgia by about 06:00 UTC.  The area looks
pretty rugged so I doubt it will ever be found.

It's been a fun ride.  Time to build a successor to it.

Bruce - VE5BNC



VA5BNC-15 will be gently landing in Georgia

Bruce Coates
 

Hi

It looks like VA5BNC-15 started descending at about 01:00 UTC at a pretty constant rate of about 70 feet per minute.  At this rate it will be on the ground in eastern Georgia by about 06:00 UTC.  The area looks pretty rugged so I doubt it will ever be found.

It's been a fun ride.  Time to build a successor to it.

Bruce - VE5BNC


Re: VA5BNC15 aprs signal

Bruce Coates
 

Hi Bill

It's a 601235 (6mm x 12mm x 35mm) rated at 220mAh and weighs in at 4 grams.  For my design, that was the sweet spot of weight, size and capacity.  I might have been able to use a slightly smaller one but would have had to sacrifice reserve capacity and would have only gained a gram or so.

73, Bruce - VE5BNC


Re: VA5BNC15 aprs signal

Bill Brown
 

I used the Pro-mini for my first prototype of my Skytracker....What Lipo are you using and how heavy is it?

- Bill WB8ELK


-----Original Message-----
From: Bruce Coates <bruce.coates@...>
To: GPSL@groups.io
Sent: Mon, Jul 13, 2020 11:09 am
Subject: Re: [GPSL] VA5BNC15 aprs signal

Hi Bill

For some reason my spam filter is discarding a lot of the messages from the GPSL list.  I'll get that figured out.

Your absolutely right.  I'm running DRA818V and it takes about 1300 ms from key up for the transmitter to energize and the Tx audio to reach full deviation.  The only solution I've found is to key it up then wait 1300 ms for before sending any data.  The result is a period of dead air, followed by what feels like a very long Tx delay with the audio level ramping up then the the two packets.  My code can also use the SR-FRS module which doesn't have this bug.  I don't remember why I'm using the DRA818 as opposed to the SR-FRS.  Probably just what I had on hand at the time.

The module is rated at 500mW when powered at 4.0.  It's powered directly from the LiPo so it will fluctuate a bit based on the battery voltage.

The GPS is a ublox NEO6MV2.  I've broken out the enable pin on the regulator to allow me to completely shut it down for deep sleep.  The micro-controller is an 8Mhz Arduino Pro mini powered directly from the LiPo and it's running a heavily modified version of Trackuino.

73, Bruce 


Re: VA5BNC15 aprs signal

Bruce Coates
 

Hi Bill

For some reason my spam filter is discarding a lot of the messages from the GPSL list.  I'll get that figured out.

Your absolutely right.  I'm running DRA818V and it takes about 1300 ms from key up for the transmitter to energize and the Tx audio to reach full deviation.  The only solution I've found is to key it up then wait 1300 ms for before sending any data.  The result is a period of dead air, followed by what feels like a very long Tx delay with the audio level ramping up then the the two packets.  My code can also use the SR-FRS module which doesn't have this bug.  I don't remember why I'm using the DRA818 as opposed to the SR-FRS.  Probably just what I had on hand at the time.

The module is rated at 500mW when powered at 4.0.  It's powered directly from the LiPo so it will fluctuate a bit based on the battery voltage.

The GPS is a ublox NEO6MV2.  I've broken out the enable pin on the regulator to allow me to completely shut it down for deep sleep.  The micro-controller is an 8Mhz Arduino Pro mini powered directly from the LiPo and it's running a heavily modified version of Trackuino.

73, Bruce 


Re: Seeing K7HAK11 in waterfall and copying VA5BNC15 direct on APRS here in Alabama

Bill Brown
 

K7HAK-11 is now near Lexington KY....it flew about 40 km NE of Baraboo WI but probably 3 hours after sunset from my estimate so wouldn't have been visible. VA5BNC-15 flew 40 km west of you around 2223Z but that would've been too far away as well to visually see it. The ones I have spotted visually at that altitude (K6STS, SA6BSS, YO3ICT, SP9UOB and mine) have typically been within 5 miles of me to be able to see them flashing in the sunlight...many have told me that my balloon magnet is very powerful :-). Easiest to see when the Sun angle is lower and the Sun is at your back.

- Bill WB8ELK


-----Original Message-----
From: Joe WB9SBD <nss@...>
To: GPSL@groups.io
Sent: Mon, Jul 13, 2020 10:19 am
Subject: Re: [GPSL] Seeing K7HAK11 in waterfall and copying VA5BNC15 direct on APRS here in Alabama

where do you think K7HAK is located Bill?
I asked last night for anyones guess and no one had an answer. It may have gone right over me. after sundown so may have been even visible.
Joe WB9SBD

On 7/13/2020 10:11 AM, Bill Brown via groups.io wrote:
Nice signal on VA5BNC-15 from 200 miles distance as it flies towards me.  Copying it direct on 144.390 MHz and i-Gating it here. I also see K7HAK-11 in the waterfall at 300 miles distance but too weak at that range to decode it.  I could also see KC7VQR-11 last night at 350 miles in the waterfall display as it flew across Indiana.

- Bill WB8ELK


Re: Seeing K7HAK11 in waterfall and copying VA5BNC15 direct on APRS here in Alabama

Joe WB9SBD
 

where do you think K7HAK is located Bill?
I asked last night for anyones guess and no one had an answer. It may have gone right over me. after sundown so may have been even visible.
Joe WB9SBD

On 7/13/2020 10:11 AM, Bill Brown via groups.io wrote:
Nice signal on VA5BNC-15 from 200 miles distance as it flies towards me.  Copying it direct on 144.390 MHz and i-Gating it here. I also see K7HAK-11 in the waterfall at 300 miles distance but too weak at that range to decode it.  I could also see KC7VQR-11 last night at 350 miles in the waterfall display as it flew across Indiana.

- Bill WB8ELK


VA5BNC15 aprs signal

Bill Brown
 

Hi Bruce,

  I believe I have your signal spotted OK in the waterfall display along with all the other APRS signals on 144.390. Yours appears to have a large 300 to 500 msec TxD keydown before sending the APRS data...pretty distinctive and looks like a flagpole on top of the APRS data. Is that correct?

- Bill WB8ELK


Re: Seeing K7HAK11 in waterfall and copying VA5BNC15 direct on APRS here in Alabama

steve potter
 

Almost x marks the spot for our two to QRP right over WKRP in Cincinnati 


On Mon, Jul 13, 2020, 8:11 AM Bill Brown via groups.io <wb8elk=aol.com@groups.io> wrote:
Nice signal on VA5BNC-15 from 200 miles distance as it flies towards me.  Copying it direct on 144.390 MHz and i-Gating it here. I also see K7HAK-11 in the waterfall at 300 miles distance but too weak at that range to decode it.  I could also see KC7VQR-11 last night at 350 miles in the waterfall display as it flew across Indiana.

- Bill WB8ELK


Seeing K7HAK11 in waterfall and copying VA5BNC15 direct on APRS here in Alabama

Bill Brown
 

Nice signal on VA5BNC-15 from 200 miles distance as it flies towards me.  Copying it direct on 144.390 MHz and i-Gating it here. I also see K7HAK-11 in the waterfall at 300 miles distance but too weak at that range to decode it.  I could also see KC7VQR-11 last night at 350 miles in the waterfall display as it flew across Indiana.

- Bill WB8ELK


Photo size setting for attachments

Mark Conner N9XTN
 

Hank N1LTV made me aware of a limitation for the free tier for groups.io.  We have a max of 1 Gb of total storage for attachments, photos, and files.  At the moment we are using about 330 Mb.  

The default group setting was for unlimited image size for attachments.  However, allowing that will rapidly eat into our free tier storage if people post multi-megapixel images.  To postpone hitting the size limit, I've set the group to resize all photos to a max of 1024x1024 pixels.  With JPEG compression that should allow the list to contain a few thousand images before we hit the wall.

If you would like to exchange hi-res images, you can link to other sharing sites or share them one-on-one off list.

There does not appear to be a way to inhibit large file attachments, so please don't send large files to the list - use a link to another service if possible.  If we approach the limits for the group, we'll have to go back and purge messages with large attachments from the archive.

73 de Mark N9XTN
GPSL list owner




Virus-free. www.avg.com


Re: Looks like we have a race on our hands.

Joe WB9SBD
 

anyone have a guess where k7hak really is? looks like last up date was almost 30 min ago. it may pass very close to me.


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

On 7/12/2020 4:48 PM, Bruce Coates wrote:
By the looks of it, Steve's floaer, K7HAK-11, will likely overtake min,  VA5BNC-15, some tmie over night.  His is flying 2500 metres higher and the wind is about 30 km/h faster up there.  Pretty amazing considering they were launched nearly 1500 km apart.




Re: Joanne KM6BWB

Harry M
 

That's what I thought Bill. I think she made a mistake when she responded to me

-------- Original message --------
From: "Bill Brown via groups.io" <wb8elk@...>
Date: 7/12/20 4:35 PM (GMT-06:00)
To: GPSL@groups.io
Subject: Re: [GPSL] Joanne KM6BWB

Harry,

  Joanne's Pico is one of my APRS Skytrackers. It transmits on 144.390 every 2 minutes and 10 seconds later it transmits on 144.340 MHz.

- Bill WB8ELK


-----Original Message-----
From: Harry M <hhm_74115@...>
To: GPSL@groups.io
Sent: Sun, Jul 12, 2020 4:10 pm
Subject: [GPSL] Joanne KM6BWB

Hey Joanne in your Instagram reply you said that your pico also transmit on 144.394. Is that correct?


Images from the NearSys flight in Oregon / Idaho

L. Paul Verhage KD4STH
 

I've attached one frame from the horizontal camera recording the burst at 98,331 feet. The rest of the images are near infrared images taken during the flight.

The near-infrared, healthy foliage shows up as bright white. Infrared light penetrates the atmosphere with very little scattering, therefore the images tend to be sharper than color images.

You can see the reservoir C.J. Strike (and the Bruneau Arm), Lake Lowell, and the Snake River. They all appear Inky black because they're reflecting near-infrared light from the sky overhead.

On Wed, Jul 8, 2020, 9:55 PM Jerry via groups.io <jerrygable=yahoo.com@groups.io> wrote:
It will only be 115 here in Phoenix this Saturday.  No tall corn to wade through but most of the plants have shape things on them.

Jerry Gable
Balloon Flight Prediction tools
http://www.s3research.com


On Wednesday, July 8, 2020, 4:31:33 PM MST, L. Paul Verhage KD4STH <nearsys@...> wrote:


Well, we'll have a cool morning with highs around 90 deg (but it's a dry heat as was said in the movie Aliens). Looking forward to seeing everyone virtually. 

On Wed, Jul 8, 2020, 5:23 PM Mike, n0mpm <morgamp52@...> wrote:
Well, in my mind Genelle and I have arrived Omaha, checked in and now enjoying a nice dinner and chat with all my GPSL friends.  
Tomorrow I plan on a virtual tour of the Union Pacific Rail Road Museum!
Can’t wait for Friday’s symposium!  
Thanks Mark for all you have done to make a sharp COVID left turn and putting together a great next best GPSL !!!

73,
mike. n0mpm

(Don’t think I will miss the 100 deg F heat index balloon chase with 7 foot tall corn fields on Saturday!)


Re: GPSL 2020

Bruce Coates
 

Ya, the drive back from my flight was nearly 90 seconds.  It would have been shorter but there was a yield sign on the way.  ;-)      


-------- Original message --------
From: Harry M <hhm_74115@...>
Date: 7/12/20 2:21 PM (GMT-06:00)
To: GPSL@groups.io
Subject: [GPSL] GPSL 2020

Thanks to all for a great GPSL 2020!

I woke up this morning with this weird feeling that I was in a motel room and I had to drive home. ;)


Re: Joanne KM6BWB

Bruce Coates
 

Oops wring thread.  :-(


-------- Original message --------
From: Bruce Coates <bruce.coates@...>
Date: 7/12/20 3:51 PM (GMT-06:00)
To: GPSL@groups.io
Subject: RE: [GPSL] Joanne KM6BWB

Ya, the drive back from my flight was nearly 90 seconds.  It would have been shorter but there was a yield sign on the way.  ;-)


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