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W5KUB-124

Click here to follow W5KUB-124 in the APRS map

Location of W5KUB-124 on sondehub

Join our world famous ham radio and shortwave show every 2nd and 4th Wednesday night at 8:00 PM Central (0100 UTC Thurs) at W5KUB.COM Our show is also broadcast on world famous shortwave station WBCQ on 7490 Khz.

Dual Launch

W5KUB-120 and W5KUB-121

Click here to see both balloons (120 and 121) on the same sondehub map.

Click here to see both balloons (120 & 121) on the same APRS map

Live weather links Ventusky.com Windy.com

Arkansas River Valley Amateur Radio Foundation

W5KUB-119 flew for 26 days and came down on May 24, 2025 of the east coast of Japan. It flew a total over 48,000 miles at 41,141 ft altitude and made it around the earth 1.8 times.

Click here to see the position of W5KUB-119 on the aprs map

This Pico balloon was launched for the ARVARF

Note: This balloon is powered by solar only. As it travels around the world when it is in darkness, there will not be any tracking. During

its daylight, the tracker will report about every 5 minutes. At times the range of the transmitter is over 5000 miles.

W5KUB-113 as of Nov 2, 2023 24 times around the earth

This balloon flew at 45,000 ft for over 450 days

Special Launch from Antarctica
W5KUB-114 & W5KUB-115

launched by Todd McKinney, KN4TPG

See W5KUB-112. W5KUB-113,W5KUB-114,and W5KUB-115 on the same map

W5KUB-112
Launched June 11, 2022
Yokohama balloon 32 inch clear, 7 grams free lift, hydrogen

W5KUB-112 flew for 320 days.

Click here to see the location of W5KUB-112 on the APRS map

Click here to track w5kub-112 with habhub

Click here to see WSPR data W5KUB

Flight W5KUB-113
launched Oct 6, 2022
Yokohama balloon 32 inch clear, 9 grams free lift, hydrogen

Click here to see the location of W5KUB-113 on the APRS map

Click here to track w5kub-113 with habhub

Click here to see WSPR data AC5CM

See both W5KUB-112and W5KUB-113 Heavy on the same map

Yokohama balloon 32 inch clear

W5KUB-112

Click here to see the location of W5KUB-112 on the APRS map

Click here to see WSPR data

This flight made 13 laps around the world

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. W5KUB-111 almost made 2 laps around. This flight will be using a new experimental Yokohama balloon with hydrogen gas. Steady float altitude will be about 42,000 to 46,000 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 while the balloon is in sun light. We are solar powered so no tracking during night time. The little 10 mW transmitters will be on 14.0956 and the signal will be heard up to 15,500Km (9600 miles) away.

Yokohama balloon 32 inch clear

W5KUB-111

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

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

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

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Donations make it possible to continue with projects like these

See Previous flights below

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.

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

This flight is on lap 3 around the world

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

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

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

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