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Radio & Nukes 🇺🇦

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Feb 16 • 7 tweets • 4 min read

https://twitter.com/johnbasham/status/1626114924551315457

This is no surprise if true!

https://twitter.com/johnbasham/status/1626114924551315457

I have questions about the last position and timing. The last raw APRS packet shows it here at 11:23:06 UTC.

I guess I’m lost here! The APRS data has the last packet ~5 hours ago Feb 16th. The shoot down over Yukon was Feb 11th? The altitude shows 960.12m

The last several packets were the same. I wouldn’t expect GPS to give the exact same data even if the ballon is stationary! Feels like APRS is beaconing bad data! Or the system they used to inject that data to APRS is still going.

In the case of this balloon the RCS would be roughly equal to the diameter. 32” 81.28cm as long as the wavelength << diameter. L-Band 24cm would be quite long for that to hold true but it would still return a significant amount of energy.

For X-Band like the F-22s APG-77 80cm is going to be really close. No idea how far a the F-22 could detect a 80cm sphere.

@NORADCommand

I reached out to @NORADCommand PIO via email. This is what I got back! #AmateurRadio #hamradio #yukon #balloon

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Radio & Nukes 🇺🇦

@HamWa07

Feb 16

🧵 Lets have a look at a few remote radar sites and see why it’s so hard to maintain these complex machines in some of the most inhospitable climate on 🌎! Let’s start with the FPS-117 above Tin City, Alaska

First off where is Tin City, AK? It’s basically the western most point of continental North America. The radar site is ~30mi from Russian territory, ~56mi from the Russian mainland.

How does one get to Tin City? Tin City LRRS (Long Range Radar Site) Airport of course, however don’t expect CAT-III ILS here! During the frozen winter months it’s possible to travel by “trail” between Whales and Tin City. During the summer limited sea access is possible.

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Feb 15

https://twitter.com/WarMonitors/status/1625850490482466819

This one has a radar reflector. Seems odd if you are trying to hide something. Could be an attempt to drain SAMs 🫤

https://twitter.com/WarMonitors/status/1625850490482466819

Looks like the winds are right for a Belarus launch point. I don’t have the exact time it was shot down so this is really rough! Also I just guessed an altitude.

https://twitter.com/Roberto05246129/status/1625864864802516992

Simple but effective radar reflector made out of foam board or cardboard and aluminum foil.

https://twitter.com/Roberto05246129/status/1625864864802516992

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Feb 5

Behold the radio traffic from the #ChinaSpyBalloon #shootdown SNR is quite low headphones are needed! Might be worth cleaning this up through a speech filter.

If you haven’t already heard they used the callsign Frank as a reference to Frank Luke a WW1 Fighter Ace (Luke AFB is named in his honor) en.m.wikipedia.org/wiki/Frank_Luke

Huntress is the callsign for EADS Eastern Air Defense Sector. MARSA = Military Authority Assumes Responsibility for Separation

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Feb 5

@wardcarroll

According to @wardcarroll video the AIM-9X didn’t have a warhead! What I was thinking based on the video early but a flash in one of the videos made me think otherwise!

The missile was launched from 58kft and that Raptor makes a fairly aggressive turn after the shoot down. Think about that for just a second!Weather balloon OBS 12z
Pressure = 79.90mb
Height = 17625.12m
Temp = -70.30c
Dew point = -95.30
Wind dir / speed = 280.00deg 56.99kts

Pressure at the surface was 1033mb so 79.90/1033 = 0.07734 so 7% of the surface pressure! Water boils at 41c or 106F at that pressure! Yet that Raptor makes a fairly aggressive turn! Cool stuff!

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