innerandOct 8
Ich hab öfter das Problem, dass mit AA/AAA NiMH Akkus (zB #Eneloop) die Batteriewarnung von Sensoren/Aktoren nicht funktioniert weil diese eine andere Entladekurve haben als eine Alkaline Batterie.
Hab mir jetzt mal so Li-ion AA Akkus mit eingebauten Spannungswandlern geholt. Die halten die 1.5V und schalten erst am Ende ihrer Kapazität auf 1.2V um. Damit sollte die Batteriewarnung klappen, bin gespannt. #XTAR
Ashton | アシュトンJun 20, 2025

Charging our batteries for an upcoming camping trip.

#batteries #xtar #sustainable #tech #prepared

Show threadKevin Karhan Mar 11, 2025

@pavel23 It's not just #Musk, but also #Trump aka. #AgentKrasnov that are into it.

  • The fact that Trump isn't impeached if not dragged out of office due to repeat violations of his oath aka. #HighTreason is beyond me...

That being said this ain't magic: Some fine-tuned LNB that is tuned to the Ka-Band uplink frequency or a harmonic of it, a simple 40cm offset dish and a hackRF is all one needs to do some #ElectronicWarfare and #SIGINT.

  • I could build this myself and shove it into a Droptank-Pod of a Su-27 Frogfoot given a workshop, time and budget to do so.

#Starlink as a #civilian communications system doesn't have the cool military features of systems like #Iridium (espechally #NettedIridium) or #XTAR...

Kevin Karhan Feb 22, 2025

@jt_rebelo @mastodonmigration @GottaLaff I'd call #Ukraine "criminally incompetent" if they didn't already leverage domestic #Fiber & #GSM networks as well as procuring entire transponders for exclusive use.

Kevin Karhan :verified: (@[email protected])

@[email protected] @[email protected] @[email protected] @[email protected] as for #ITsec amd the whole #Starlink #Network: It basically uses a homegrown mix of #DOCSIS, #GSM and #ViaSat #SurfBeam technologies to generate these hexagon coverage areas. - Certainly not trivial, but not impossible to #BlueBox, tho unless one needs #FPS-grade #Ping|s, it's not worth the effort when other Options like #KaSAT are easier and cheaper to get hold of... https://infosec.space/@kkarhan/114048966406486263

Infosec.Space
Show threadKevin Karhan Feb 22, 2025

@mastodonmigration @GottaLaff noone relies solely on #Starlink, espechally given it's big-ass dishes.

  • Even the #US #DoD uses #Iridium & #UHFSATCOM.

  • #SES & #Eutelsat have various commercial #Cband, #KuBand & #KaBand transponders for bidirectional data from their GSOs.

  • #XTAR has a #Xband-Spotbeam.

  • #Ukraine has both #Fiber and #Radio links (civilian and military) to link together units and emplacements. Espechally direct-burial/lie-flat fiber is used because #COTS parts are cheap, commonplace and unlike copper, they can do 160km+ without amplifiers with ample of room for splices.

Pretty shure Starlink was a mere "comfort feature" allowing units to send their drone footage from their FOB to HQ for instant #Meme|fication and "scoreboard updates" but I'm shure worst-case the #NAFO friends will just pack in some 2,5" SSDs and USB cases with the next supply trucks or have some #Skyhook-Style delivery system if that was ever needed.

  • I'm shure the folks in the trenches will miss YouTubing in their toilet break, but I'm shure they still have enough #Memes and #Entertainment in reserve to compensate for it.
CymaphoreOct 13, 2024

Die 1,5V #LiIon-Zellen (Größe AA, integrierter Spannungswandler) haben sich in den in den Heizkörper-Thermostaten (#DANFOSS Eco) richtig bewährt.

Seitdem ich die Temperaturen via #BLE auslese, sind 1,2V #NiMH leider endgültig keine praktikable Option mehr.

Ich habe dann herumgesucht und die relativ neuen 4150 mWh Zellen von #XTAR als mögliche Lösung ausprobiert.

(1/4)

#Heizen #HomeAutomation #Akku

stfn  Apr 11, 2024

I finally bought an 18650 charger, something I've been planning for a long time

#18650battery #xtar

Jakub Klawiter Dec 5, 2023

Kupiłem, ale bo ja wiem… OK moje 18650 mają swoje za sobą, ale kurcze idea była taka, że wrzucę do tego właśnie raczej używane aku. Niestety w żaden sposób nie dają rady, mimo, że w latarce spoko.

Czyli trzeba będzie zainwestować w nowe aku z dużą wydajnością (min 2A), czyli tak ciut bez sensu wychodzi. :>

No i na koniec, miało mieć tryb wolnego ładowania 5V… ekran mruga, ale napięcie rośnie i po chwili zabawka zalicza reset. :>

#XTAR #18650 #Powerbank

Show threadKevin Karhan Sep 7, 2023

@amayer @shekinahcancook @georgetakei

I wish I could go into details but based off some former friends experiences, I'd like my door intact, my neck lead-free and my pronouns not non-consensually changed to was/were...

That being said: Read some #SpecSheets on #GlobalSecurityOrg or even #Wikipedia and then realize that #Starlink was neither designed nor approved for that useage and #SpaceX explicitly bans in it their ToS - unlike #XTAR & #Iridium...

Show threadKevin Karhan Sep 7, 2023

@amayer @noelreports nope.

My prime criticism was and still is the same:

There's a reason no NATO member would ever use Starlink for critical comms and they'd rather pay absurd prices for #XTAR instead...

https://mstdn.social/@kkarhan/111025347925529744

Kevin Karhan :verified: (@[email protected])

@[email protected] @[email protected] it's not as if there was any contract or guaranteed availability... Just like with anything else. Not to mention Starlink's ToS ban use for weapons systems... There's a reason why shit like #Drones are done on dedicaded satellites with dedicaded equipment in dedicaded bands... I'm pretty shure if Zelenskyy asks his government would get #XTAR coverage in less than 24 hours with a dedicaded spotbeam on Ukraine... https://xtar.com/xtar-eur-2/

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