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It is currently Fri Mar 29, 2024 2:06 am
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Secure radio communications : A primer
Secure radio communications : A primer
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TechnoWeenie
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Location: Nova Laboratories Joined: Tue Oct 25, 2011 Posts: 18385
Real Name: Johnny 5
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movingviolation wrote: reginald_burrito wrote: Lithium ion doesn’t behave that way, you’re thinking of NiMH batteries... that guy is dead, save your time died in under 2 hours Try charging it again.. drain..charge...Do that a couple times... Should give you a little bit longer each time...
_________________NO DISASSEMBLE!Thomas Paine wrote: "He that would make his own liberty secure, must guard even his enemy from oppression; for if he violates this duty, he establishes a precedent that will reach to himself."
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Mon Jun 29, 2020 5:47 pm |
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TechnoWeenie
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Location: Nova Laboratories Joined: Tue Oct 25, 2011 Posts: 18385
Real Name: Johnny 5
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I touched on this before... The software and hardware modifications take minutes... But unless you have a $12k Aeroflex service monitor, you're not gonna have a good time. You can steal a tuning file from another radio, but that will only get you in the ballpark. Not a big deal if you're just doing analog, but if you're doing crypto, which is the point of a radio like this, then it has to be tuned properly... The slightest bit off and it doesn't work..
_________________NO DISASSEMBLE!Thomas Paine wrote: "He that would make his own liberty secure, must guard even his enemy from oppression; for if he violates this duty, he establishes a precedent that will reach to himself."
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Mon Jun 29, 2020 5:50 pm |
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TechnoWeenie
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Location: Nova Laboratories Joined: Tue Oct 25, 2011 Posts: 18385
Real Name: Johnny 5
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reginald_burrito wrote: Lithium ion doesn’t behave that way, you’re thinking of NiMH batteries... that guy is dead, save your time Batteries for these come in all 3 flavors... Ni-cd, Ni-Mh, and Li-Ion. Li-Ion is a relatively new thing for the XTS, odds are it's Ni-Mh.... I told him not to do a Li-Ion, and the batteries are labelled what chemistry they are... Ni-Cd can be recovered quite well, Ni-Mh, not so much. Li-Ion, not at all. Getting new batteries is the best route, but I gave him those options to at least get him something working, which is better than nothing.
_________________NO DISASSEMBLE!Thomas Paine wrote: "He that would make his own liberty secure, must guard even his enemy from oppression; for if he violates this duty, he establishes a precedent that will reach to himself."
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Mon Jun 29, 2020 5:51 pm |
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movingviolation
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Location: Bonney Lake Joined: Fri Oct 21, 2011 Posts: 3294
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TechnoWeenie wrote: movingviolation wrote: reginald_burrito wrote: Lithium ion doesn’t behave that way, you’re thinking of NiMH batteries... that guy is dead, save your time died in under 2 hours Try charging it again.. drain..charge...Do that a couple times... Should give you a little bit longer each time... nah it's fukt, already showing green now, so just about 1 hour of charging...
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Mon Jun 29, 2020 6:05 pm |
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TechnoWeenie
Site Supporter
Location: Nova Laboratories Joined: Tue Oct 25, 2011 Posts: 18385
Real Name: Johnny 5
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movingviolation wrote: TechnoWeenie wrote: movingviolation wrote: reginald_burrito wrote: Lithium ion doesn’t behave that way, you’re thinking of NiMH batteries... that guy is dead, save your time died in under 2 hours Try charging it again.. drain..charge...Do that a couple times... Should give you a little bit longer each time... nah it's fukt, already showing green now, so just about 1 hour of charging... and you said it only charged for 15 mins last time.... It's progress.... :-p
_________________NO DISASSEMBLE!Thomas Paine wrote: "He that would make his own liberty secure, must guard even his enemy from oppression; for if he violates this duty, he establishes a precedent that will reach to himself."
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Mon Jun 29, 2020 6:10 pm |
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TechnoWeenie
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Location: Nova Laboratories Joined: Tue Oct 25, 2011 Posts: 18385
Real Name: Johnny 5
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FYI you have a rapid charger, so if it's charging for an hour, that should be roughly 2AH, depending on the battery.
What is the battery model number?
_________________NO DISASSEMBLE!Thomas Paine wrote: "He that would make his own liberty secure, must guard even his enemy from oppression; for if he violates this duty, he establishes a precedent that will reach to himself."
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Mon Jun 29, 2020 6:12 pm |
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TechnoWeenie
Site Supporter
Location: Nova Laboratories Joined: Tue Oct 25, 2011 Posts: 18385
Real Name: Johnny 5
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_________________NO DISASSEMBLE!Thomas Paine wrote: "He that would make his own liberty secure, must guard even his enemy from oppression; for if he violates this duty, he establishes a precedent that will reach to himself."
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Mon Jun 29, 2020 6:19 pm |
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movingviolation
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Location: Bonney Lake Joined: Fri Oct 21, 2011 Posts: 3294
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TechnoWeenie wrote: FYI you have a rapid charger, so if it's charging for an hour, that should be roughly 2AH, depending on the battery.
What is the battery model number? NNTN4435B alternate to NTN8923A
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Mon Jun 29, 2020 6:22 pm |
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movingviolation
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Location: Bonney Lake Joined: Fri Oct 21, 2011 Posts: 3294
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TechnoWeenie wrote: http://www.oppermann-telekom.de/pdf/ntn7209.pdf i found the manual earlier, tried the little troubleshooting it does offer, no luck so but the manual lists battery model#'s that are proper for it, so does that mean i have a wrong battery / charger combo then?
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Mon Jun 29, 2020 6:27 pm |
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TechnoWeenie
Site Supporter
Location: Nova Laboratories Joined: Tue Oct 25, 2011 Posts: 18385
Real Name: Johnny 5
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movingviolation wrote: TechnoWeenie wrote: http://www.oppermann-telekom.de/pdf/ntn7209.pdf i found the manual earlier, tried the little troubleshooting it does offer, no luck so but the manual lists battery model#'s that are proper for it, so does that mean i have a wrong battery / charger combo then? You have an Impres battery but not an impres charger. It will still charge fine. The battery you listed is only 1800mah to begin with, and is Ni-Mh. Should be a roughly 1A charge rate, so if it charged an hour, that's a bit less than 1000mah.... Going from 250mah to 1AH in one cycle is actually a good sign.... Try depleting it and recharging it a couple times.. You might be able to actually get some use out of it, even if it's just for monitoring. Impres is a smart battery technology that allows smart maintenance, depth of discharge, cycles and cycles remaining. It's nifty, but not required. It helps when you're managing a fleet though as the smart battery can say 'hey, I'm not taking a charge like I'm supposed to, I need to be replaced'... Instead of having dead batteries you just swap out for a fresh one 3x a shift..
_________________NO DISASSEMBLE!Thomas Paine wrote: "He that would make his own liberty secure, must guard even his enemy from oppression; for if he violates this duty, he establishes a precedent that will reach to himself."
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Mon Jun 29, 2020 6:34 pm |
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movingviolation
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Location: Bonney Lake Joined: Fri Oct 21, 2011 Posts: 3294
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it just died, in 34 minutes. recharging again
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Mon Jun 29, 2020 6:40 pm |
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TechnoWeenie
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Location: Nova Laboratories Joined: Tue Oct 25, 2011 Posts: 18385
Real Name: Johnny 5
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movingviolation wrote: it just died, in 34 minutes. recharging again Worst case scenario. It goes in the trash, which we already know, and you wasted 10 mins putting it in the charger and taking it out. If you can get it back to somewhat decent capacity, you'll at least have something to dick around with until the replacements get in.
_________________NO DISASSEMBLE!Thomas Paine wrote: "He that would make his own liberty secure, must guard even his enemy from oppression; for if he violates this duty, he establishes a precedent that will reach to himself."
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Mon Jun 29, 2020 6:44 pm |
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RocketScott
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Location: Kentucky Joined: Fri Jan 16, 2015 Posts: 11045
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TechnoWeenie wrote: RocketScott wrote: What would it take to change a 700/800mHz to a VHF radio? ... I touched on this before... So would radio depot or someone like that be able to do that service? It's over a $100 difference in price so if they charged $50 to tune it there's still some savings Stupid question #2: Say you buy a Model I with no screen or keypad. Can one be added on later? I see screens, keypads and cases for sale and the total for buying a Model I then adding those things would still be a lot less
_________________ You may be right, I may be crazy, but it just may be a lunatic you're looking for
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Mon Jun 29, 2020 7:15 pm |
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movingviolation
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Location: Bonney Lake Joined: Fri Oct 21, 2011 Posts: 3294
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TechnoWeenie wrote: movingviolation wrote: it just died, in 34 minutes. recharging again Worst case scenario. It goes in the trash, which we already know, and you wasted 10 mins putting it in the charger and taking it out. If you can get it back to somewhat decent capacity, you'll at least have something to dick around with until the replacements get in. I have 1 good battery, i got 2 radios and 3 batteries, 2 shitty and one good one, it's still going strong since about 1645
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Mon Jun 29, 2020 7:18 pm |
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TechnoWeenie
Site Supporter
Location: Nova Laboratories Joined: Tue Oct 25, 2011 Posts: 18385
Real Name: Johnny 5
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RocketScott wrote: TechnoWeenie wrote: RocketScott wrote: What would it take to change a 700/800mHz to a VHF radio? ... I touched on this before... So would radio depot or someone like that be able to do that service? It's over a $100 difference in price so if they charged $50 to tune it there's still some savings Stupid question #2: Say you buy a Model I with no screen or keypad. Can one be added on later? I see screens, keypads and cases for sale and the total for buying a Model I then adding those things would still be a lot less Shop rate is about $125 for an alignment. Yes, you can buy a model 1 in VHF, then add on the components to make it a model 3 without dicking with tracking data (tuning info).
_________________NO DISASSEMBLE!Thomas Paine wrote: "He that would make his own liberty secure, must guard even his enemy from oppression; for if he violates this duty, he establishes a precedent that will reach to himself."
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Mon Jun 29, 2020 7:43 pm |
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