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@@BobBob-il2ku I haven't done a full programming class yet, but those classes are paid for separately

I do not, for a couple reasons. First is cost. Getting into satcomms typically has a high cost to get the equipment, and then a high cost for the subscription to use the equipment. The second is purpose. One of my primary uses for radios is a backup communication method if traditional comms infrastructure fails or is unavailable. Satellites themselves may be unaffected by whatever is happening on the ground, but those satellites still have to communicate back to servers on the ground, so if those servers are offline too, satcomms won't work. Satcomms has its uses, but it doesn't fit into my needs, at least not yet.

So can the device you just used to leave that comment. This is also why you have different comms plans for with and without rule of law. No one will care if you have a license or not if everything collapses, but before then, not having a license may raise some eyebrows, depending on the circumstances

@@resilientcivilian2597 I can understand that. These devices won't be working after the collapse anyway

@@charliejones7574 what makes you think that?

@@resilientcivilian2597 ....other than usual news sources. All can be found online

I actually don't currently run P25. I've had very bad luck getting into the used P25 market 0 out of the 4 radios I've bought worked the way they're supposed to, so I have more or less decided to forego P25 until I can invest in newer gear.

I use a Uniden SDS100, works great on everything except for encrypted of course. It is expensive but worth it if you’re serious about listening for situational awareness in your area.

That will happen at some point

I used hamradiolicenseexam.com to study for both my tech and general licenses and passed both with flying colors. It's a paid service at that site, but it works very well, I recommend checking them out

@@resilientcivilian2597 I might just have to

@@Protov0id it's worth it. HF is a game changer, BLOS comms without infrastructure gets exciting quick. Don't get too wrapped up trying to figure out antennas either, just build a simple dipole for 40m off of a cobra head connector and you'll be set, super cheap and super simple

That entirely depends on the context. ADP, ARC4, AND DES are all known to have been broken. There was talk some time ago that Russia had cracked AES256 on Ukrainian DMR radios, but that rumor was determined to be more of a psyop/propaganda piece. AES256 is such a complex algorithm that it would take the strongest computer several thousand years to brute force it's way into breaking the code, if I'm remembering what I read correctly. Either way, its a long enough amount of time that it makes obtaining the keys by other means a more valuable use of time, such as compromising a network connected computer that was used to load the keys, or capturing a radio that has the keys loaded.

You may be thinking of the TETRA vulnerabilities, not P25. TETRA and P25 are just standards for digital communications. However, the TETRA crypto algorithms were never made public by Motorola, so no one knew where to check for vulnerabilities since it was a closed standard. When a company got ahold of the algorithms they did some clever analysis and discovered a number of vulnerabilities in them. P25 is an open standard and thus requires interoperability with several encryption standards. Thus, P25 is capable of several encryption algorithms. Several have been broken as mentioned. AES256 has not. For clarity, AES256 keys are just a random stream of bits. Something like 10 to the 80th power if memory serves. So pretend you've got a padlock with 80 numbers. If you know those numbers it's pretty trivial for you to open that padlock. For someone who DOESN'T know the numbers, they're looking at 100,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 possibilities. The physics of bruteforcing this have been theorized to require more energy than the known universe can supply (based on our current level of scientific understanding), with a timeline of something like 1.3x the age of the universe. To quote from Bruce Schneier's book Applied Cryptography, "...they strongly imply that brute-force attacks against 256-bit keys will be infeasible until computers are built from something other than matter and occupy something other than space." There's a reason AES256 is approved for the encryption of the highest levels of classified material within the US government. That being said, there are implementations that could allow a nefarious actor to obtain your secret keys. That's the far likelier breakdown in your secure comms. Or they don't care what you're saying, you just get DF'd and they know where you are. One of the reasons I prefer P25 is because there are fully air-gapped key loading devices where even if the device is recovered, the keys cannot. DMR radios are typically software-based when it comes to even AES256 key loading, and those devices could easily be broken. For example, P25, you use a KVL, someone gets ahold of it, they're still screwed. DMR, someone snags your laptop that you used to load even AES256 keys, and they just pull them straight from memory. The algorithm still can't be cracked, but they've just gotten your keys, so no need to even bother trying to crack the algorithm. It's the implementation that's screwed you. There are more chances for that with how DMR typically implements encryption.

Yaesu is a solid quality way to get started, my first radio was an FT-60. Branching into all modes is a great way to go about comms

The HD2 is a big step up from baofengs. Glad to see more people upgrading!

@resilientcivilian2597 for new people asking about getting radios that's what I'm sending their way over the 50 dollar feng

It's a bigger deal than most people give it credit for. As much as we like to plan for the tactical stuff, planning for the day to day comes first. Glad to see more people are thinking critically and practically about their systems, keep up the good work!

@@resilientcivilian2597 thanks! I've been following you and the other comms guys on IG for a long time now and I feel like it's been very beneficial.