Yokohama balloon 32 inch clear

W5KUB-111

This balloon will be launched at Hamvention 2022 on Friday May 20th about 1:00 PM Eastern

Join our facebook group of over 12000 hams for comments about our flight

Countup

Click here to see all hamvention balloons on the same map

Click here to track w5kub-111 with aprs

Click here to track w5kub-111 with habhub

W5KUB-111 (AC5CM) WSPR Data

This flight is on lap 1 around the world

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Donations make it possible to continue with projects like these

This balloon was launched with 3 other balloons during the pico balloon forum at Hamvention 2022. The other balloons are running aprs trackers but we are running a wspr tracker and forwarding that data over to aprs. Our wspr tracker will received and reported about anywhere in the world as it has a range of over 10,000 miles whereas the aprs transmitters have a range of only about 200 miles and are not seen by stations while they are over the ocean or other parts of the world where aprs is not available. The pico balloons are using helium as a lift gas and our w5kub-111 is using hydrogen gas for lift.

This is an attempt to send a balloon around the world. See pictures below of our home built tracker (under a microscope) and gassing of the balloon. Our best flight shown below was w5kub-18 which went around the world 3.5 times and stayed up for 72 days. W5KUB-110 almost completed 3 times around in about 35 days. This flight will be using a new experimental Yokohama balloon with hydrogen gas. Steady float altitude will be about 40,000-41,000 ft. Speeds will vary but in the right jet stream it can reach speeds of 150 mph. We are solar powered only, so that means tracking only when it is in sunlight. Each payload including 20 meter antenna weighs only 7.8 grams. The balloon’s positions will up date on the tracking maps every 10 minutes. The little 10 mW transmitters will be on 14.0956 and the signal will be heard up to 15,500Km (9600 miles) away.

See Previous flights below

Yokohama balloon

W5KUB-110

Pico Balloon Launch

Join our facebook group of over 12000 hams for comments about our flight

Click here to track w5kub-110 with aprs

Click here to track w5kub-110 with habhub

W5KUB-110 WSPR Data

W5KUB-110 stayed up 34 days and traveled 60,000 miles. Almost completed 3 laps around the world. It crashed west of South Korea in the Sea of Japan

This flight is on lap 3 around the world

W5KUB-110 Qx7XXX on Habhub

Launch video of W5KUB-110

Donate if you can
Donations make it possible to continue with projects like these

This is an attempt to send a balloon around the world. See pictures below of our home built tracker (under a microscope) and gassing of the balloon. Our best flight shown below was w5kub-18 which went around the world 3.5 times and stayed up for 72 days. This flight will be using a new experimental Yokohama balloon with hydrogen gas. Steady float altitude will be about 40,000-41,000 ft. Speeds will vary but in the right jet stream it can reach speeds of 150 mph. We are solar powered only, so that means tracking only when it is in sunlight. Each payload including 20 meter antenna weighs only 7.8 grams. The balloon’s positions will up date on the tracking maps every 10 minutes. The little 10 mW transmitters will be on 14.0956 and the signal will be heard up to 15,500Km (9600 miles) away.

This flight uses 20 meter WSPR for tracking. Two different wspr transmissions occur, the first at the 2 minute mark, and the second at the 4 minute mark. Data is then pulled from the wspr data base and combined, then matched up with a spreadsheet using python, and then it is sent to APRS.FI. There you will see additional information such as altitude, speed, course, voltage, altitude, etc. This wspr data relayed to aprs gives us location accuracy to within about a 3 by 5 mile box.(this is a 6 digit grid square) Additionally at the 6 and 8 minute marks we do a JT9 transmission which gives us a 10 digit grid square which places the location in a box about 50 ft square. The JT9 can be received by placing wsjt-x in the JT9 mode, and setting the freq to 14.0956 and tune the decode to 1380 Hz on the band scope

See previous flights below



Pico Balloon Launch

W5KUB-108

W5KUB-108 stayed up 22 Days and 8 Hours and traveled 53,877 miles. Just a little short of 2 laps around the world.

Join our facebook group of over 12000 hams for comments about our flight

 
 
 
 
 
 
 

W5KUB-108 (ac5cm) 1x8xxx HABHUB

 

W5KUB-108 Launch Video

 

Donate if you can
donations make it possible to continue with projects like these

This is an attempt to send a balloon around the world. See pictures below of our home built tracker (under a microscope) and gassing of the balloon. Our best flight shown below was w5kub-18 which went around the world 3.5 times and stayed up for 72 days. This flight will be using a new experimental Yokohama balloon with hydrogen gas. Steady float altitude will be about 40,000-41,000 ft. Speeds will vary but in the right jet stream it can reach speeds of 150 mph. We are solar powered only, so that means tracking only when it is in sunlight. Each payload including 20 meter antenna weighs only 7.8 grams. The balloon’s positions will up date on the tracking maps every 10 minutes. The little 10 mW transmitters will be on 14.0956 and the signal will be heard up to 9000 Km away.We have reduced the free lift on this flight to 4.8 grams.

This flight uses 20 meter WSPR for tracking. Two different wspr transmissions occur, the first at the 2 minute mark, and the second at the 4 minute mark. Data is then pulled from the wspr data base and combined, then matched up with a spreadsheet using python, and then it is sent to APRS.FI. There you will see additional information such as altitude, speed, course, voltage, altitude, etc. This wspr data relayed to aprs gives us location accuracy to within about a 3 by 5 mile box.(this is a 6 digit grid square) Additionally at the 6 and 8 minute marks we do a JT9 transmission which gives us a 10 digit grid square which places the location in a box about 50 ft square. The JT9 can be received by placing wsjt-x in the JT9 mode, and setting the freq to 14.0956 and tune the decode to 1380 Hz on the band scope


Is it Legal?
Yes, we are flying with FAR-101 exemption

Description
210 Liter balloon, Homebuilt tracker which includes GPS/ Transmitter, CPU, six 38×19 mm solar cells, 34 ft 20 meter dipole. Total weight of payload is only 7.81 grams. Using 5.8 grams of Hydrogen for free lift.

 

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