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Mark Jessop - @vk5qi@cloudisland.nz Profile
Mark Jessop - @[email protected]

@vk5qi

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He/Him; 'Strayan; Amateur Radio Operator (VK5QI); RF Engineer; High-Altitude Ballooning - https://t.co/y0FI614GX1; https://t.co/Qb7YCq7cXg Contributor; #highaltitude on https://t.co/kidOrR5tn1.

Adelaide, South Australia
Joined September 2007
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@vk5qi
Mark Jessop - @[email protected]
30 days
@GilmourSpace @acmadotgov Licenses the Gilmour launch site for reference:
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@vk5qi
Mark Jessop - @[email protected]
30 days
@GilmourSpace @acmadotgov If I had $1 for every Australian space company we've spotted launching radiosondes without an appropriate license from the ACMA I'd have $2. Which isn't much, but it's funny that it's happened twice.
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@vk5qi
Mark Jessop - @[email protected]
30 days
Spotted some radiosonde launches by @GilmourSpace on Using Graw PS-15 pilotsondes. No license in the @acmadotgov database for the 400.170 MHz frequency they are using though πŸ€”
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@vk5qi
Mark Jessop - @[email protected]
2 months
Lots of radiosonde launches ahead of Starship 9! We really need a radiosonde_auto_rx station close to Starbase - can you help out @NASASpaceflight @Erdayastronaut @SpaceflightNow ??
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@vk5qi
Mark Jessop - @[email protected]
2 months
Oh look @AST_SpaceMobile using the amateur radio bands again. Their argument to the FCC is "It's outside the US, we don't have do do any analysis." Kindly get the hell out of our bands thank you. @acmadotgov.
@amsatdl
AMSAT-DL
2 months
. and here is the answer from AST SpaceMobile. They just ignore @IARU and the rest of the world, with its legal users in the 430-440 MHz UHF band. I wonder what @bnetza thinks about it?
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@vk5qi
Mark Jessop - @[email protected]
2 months
Playing with one of these cheap 'EMF meters'. Starts blinking scarily at a few tens of mW/m^2. For reference the @ARPANSANews RPS S-1 General Public limit at the frequency I was TXing on is 2000 mW/m^2. No wonder the people who buy these things freak out.
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@vk5qi
Mark Jessop - @[email protected]
3 months
Well, no signals at all heard from FRAM2 over Australia. I guess we were left out of this one :-( #amsat #hamradio #fram2ham.@ARISS_Intl.@framonauts.@amsatdl.
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@vk5qi
Mark Jessop - @[email protected]
4 months
RT @DefenceScience: We have lift off! πŸš€ 🌏 πŸ›°οΈ . The Buccaneer Main Mission (BMM) was launched by SpaceX from Vandenberg Space Force Base in….
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@vk5qi
Mark Jessop - @[email protected]
4 months
RT @SatNOGS: πŸ“Œ The @SatNOGS Network πŸ“‘ is ready to track #satellites πŸ›°οΈπŸ›°οΈ from the Transporter 13 rideshare. 🌎🌍🌏.For more updates, follow:….
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@vk5qi
Mark Jessop - @[email protected]
4 months
RT @SpaceX: Watch Falcon 9 launch the Transporter-13 mission to orbit
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@vk5qi
Mark Jessop - @[email protected]
4 months
Something I've been working on for a few years! Launching within the hour!.
@DefenceScience
Defence Science and Technology Group - Australia
4 months
Ready for launch! πŸš€ πŸ›°οΈ . #Defence is flying to space! The Buccaneer Main Mission developed by Defence Science and Technology Group was integrated into the SpaceX launch stack in early 2025 and is awaiting launch.
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@vk5qi
Mark Jessop - @[email protected]
4 months
RT @DefenceScience: The main objective of the Buccaneer Main Mission is to collect high-frequency (HF) measurements in Low Earth Orbit (LEO….
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@vk5qi
Mark Jessop - @[email protected]
4 months
RT @DefenceScience: Ready for launch! πŸš€ πŸ›°οΈ . #Defence is flying to space! The Buccaneer Main Mission developed by Defence Science and Techn….
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@vk5qi
Mark Jessop - @[email protected]
4 months
RT @SpaceX: Targeting Friday, March 14 for a Falcon 9 launch of the Transporter-13 mission from Space Launch Complex 4E in California β†’ htt….
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@vk5qi
Mark Jessop - @[email protected]
4 months
First radiosonde launch from Starbase prior to Starship 8! We need an auto_rx receiver station closer to Starbase to collect telemetry right from launch! @NASASpaceflight can you help?
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@vk5qi
Mark Jessop - @[email protected]
6 months
RT @TerribleMaps: What’s the Term for Potato Slices Deep-Fried in Batter?
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@vk5qi
Mark Jessop - @[email protected]
6 months
Sub-par display. Getting 'Hunt for Red October' vibes here!
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@vk5qi
Mark Jessop - @[email protected]
6 months
Finally got to see a rocket launch! Transporter 12, viewed from West Ocean Avenue near Lompoc.
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@vk5qi
Mark Jessop - @[email protected]
6 months
Wow, terrible kerning.
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@vk5qi
Mark Jessop - @[email protected]
6 months
Oh look, a new interesting digital mode on the amateur radio bands! . and its closed source, with a Windows-only client, with no protocol/modulation description to allow any other experimentation or implementations.
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