.....balloon headed round the world!
I launched a balloon from Rochester NY on February 13, 2018 and it is still flying around the earth after 55 total days in the air.
This flight is using 2 very small balloons that cost $1.50 each using helium which makes it even more fascinating.
WSPR transmits 2 times in a row with the first being call sign and grid locator and the second using special Telemetry created by Hans Summer of QRP Labs. Hans was kind enough to allow me to use this special firmware for this U3S based transmitter.
Photos of payload,real time flight data and launch seen here:
This site works best for mobile devices:
Details about the custom builds can also be found on these websites.
Hope to have more stations receive the signals as it is in a very tough location over middle Russia and may be closer to Japan in days to come. 10mw transmitters over Russia to Japan and mid Pacific are VERY difficult to receive. Beam antennas would be a great help.
Also 30m WSPR is used but the antenna is optimal for 20m band. JT9 for both 20/30m is also used.
Jim; N2NXZ(please pass this on to listeners around the world)