[Scan-DC] 401.015 MHz weather balloon signals -- anyone with decoding experience?

[Andrew Clegg]

A balloon is up now on 401.00825 MHz or so. You may wish to try to hear it in FM mode. No success decoding yet. Trying SondeMonitor software.


________________________________
From: scan-dc-bounces at mailman.qth.net <scan-dc-bounces at mailman.qth.net> on behalf of Andrew Clegg <andrew_w_clegg at hotmail.com>
Sent: Monday, April 19, 2021 9:41 AM
To: Scan-DC at mailman.qth.net <scan-dc at mailman.qth.net>
Subject: [Scan-DC] 401.015 MHz weather balloon signals -- anyone with decoding experience?

Hi all,

I discovered the 401.015 MHz signal from the weather balloons (radiosondes) that the National Weather Service in Sterling sends up twice a day (usually starting around 7 AM and 7 PM, and lasting for a couple of hours or so). At least I presume Sterling is the source. The signal is pretty decent here in Arlington. You can even see the Doppler shift as the balloons hit various winds in the atmosphere.

There are several software packages available for decoding the radiosonde data (some free, some not). Apparently there are different formats of data from different radiosondes so you need the right software to match the radiosonde. In order to avoid a bunch of false starts, does anyone on the list have experience decoding the signals from the local radiosondes, and can make a recommendation on which software works best?

73!
Andy
W4JE

______________________________________________________________
Scan-DC mailing list
Home: https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Fscan-dc&amp;data=04%7C01%7C%7C6d0819183b2f448d676008d90338e196%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637544365096717659%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=lkqdElpLZP4Ig8sRaTFoKcv3U211C5njO%2FTc65lN7bk%3D&amp;reserved=0
Help: https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&amp;data=04%7C01%7C%7C6d0819183b2f448d676008d90338e196%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637544365096717659%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=sR1gZWHb8HKXLxsymnpzWPjszxrjaQlPxVuB%2BBgKRxY%3D&amp;reserved=0
Post: mailto:Scan-DC at mailman.qth.net

This list hosted by: https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&amp;data=04%7C01%7C%7C6d0819183b2f448d676008d90338e196%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637544365096717659%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=beL%2BpvK1uqgTjIP5yEYyd35cV73vNe5U5E9itA2%2FIMQ%3D&amp;reserved=0
Please help support this email list: https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&amp;data=04%7C01%7C%7C6d0819183b2f448d676008d90338e196%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637544365096717659%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=ilqYBe7%2FxxKKVfRTazbpZjRZ0nSukH1ozWtUKAFAmTY%3D&amp;reserved=0