yt-dl
What box are you using
He makes some solid stuff
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@SgtAwesomesauce @Token best video on S parameters ive found on YT to date. He leaves out some nuances but its very thorough.
Its a skill youll need when using a VNA to reverse engineeer or engineer stuff
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LMioEtool Junction Box ABS Plastic IP65 Waterproof Dustproof Universal Electrical Enclosure Hinged Shell Outdoor and Indoor Usage Project Box, 7.9"x 3.9"x 2.7"(200x100x70mm), Grey https://a.co/d/7WfYxPv
But in one of “The Comms Channel” vids he found one with metal clasps for the same price so id get that one if doing this again.
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Lora and meshtastic do fall into the realm of amateur radio.
They are using rf that is not within government or commercial bandwidth.
There are so many modes of rf communications that we amateurs have access to.
Frs and gmrs radios only use a very tiny slice of bandwidth as compared to ham.
But in my opinion if someone is satisfied with just gmrs or frs thats fine.
But some sad hams look down on it.
Cb, gmrs, frs, lora, or meshtastic can be looked at as stepping stones into our great hobby.
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Does anyone know of a good 433MHz SMA antenna I could buy off of Amazon? All I seem to find are just small coils wrapped with silicone to make them look like good antennas. I tried the dual 144/433MHz VHF/UHF antennas but they don’t have good gain on 433MHz.
Does it have to be from Amazon? It’s hard to beat a SignalStuff Signal Stick. No coils, no BS. Just a simple, extremely durable dual band antenna. If you really want best performance at 70cm, they have a single band antenna for that too, since any dual band antenna for an HT will be a compromise. They’re reasonably priced and proceeds support HamStudy Exam Tools which helps support the HAM community as a bonus.
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That’s what I was looking for really, single band. I’ve not had much luck with the 144/433 ones. The gain on 433 is not that great. Also gonna put it in line with an Airbuddy IOT AB 433 so I’d like to keep everything tuned in the chain.
P.S. I found this small antenna in my stash that seems to be rated to work between 400 to 470MHz:
I can’t tell if it’s good or not because I don’t have any decent 433MHz antenna to test against.
The only problem is any antenna less than a halfwave is a compromize
A quarter wave usually works fine but any antenna that uses a loading coil will not perform at optimum efficiency.
You can easily build and precisely tune antennas if you have a nanovna.
That is a home brew 1/4 wave ground plane antenna for 70 cm.
You can get sma cables to match so239, n type, bnc, type or uhf connectors
The antennas are easy to build and if you have a nano vna very easy to match your coax.
It will seriously out perform any rubber duck antenna.
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Those are the people keeping people like me away from ham in general.
Actually, the whole ham community tends to be filled with people who bug me to no end.
“why would you want encryption, are you a threat?”
“The only reason you should practice with your radio is to do well at SOTA”
Statements made up by the utterly deranged.
I have been a ham for over a decade. It really isn’t high-tech and in many ways has been superseded by modern technology. But it is still a useful skill set and knowledge base.
The issue I’ve had with HAM is that modern technology seems to be incompatible with it.
Sure, there’s js8call and the other data modes, but most communication stuff has encryption baked in it now, and the damn FCC (won’t let me be) prohibits encrypted communications on the entire band that they’ve allocated for HAMs.
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Rules don’t apply to those with money. Get a business license, get legal permissions to encrypt traffic (see Techprepper on YouTube)
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Yeah the only encryption allowed is the communications with remote control aircraft and rc boats and cars.
Sadly a lot of the issue with sad hams is the prepper crowds getting ready for the shtf scenarios ( Oh no its the zombie apocolypse)
the misinformation that is spread some that cause equipment damage, some actually hazardous, and some equipment or lack of that splatters the airwaves.
And those twits who jam or otherwise hog a bandwidth.
It can be downright horrendous.
If you listen to many cb frequencies you hear a lot of vulgarity, trash talking, or endless jabbering that serves no purpose.
You also find this in ham radio though not so much.
Of course theres gmrs crowds.
They are licensed and must follow a set of rules.
Many of them are ok but some boneheads just muck up the works.
They are only allotted a tiny chunk of frequency and very limited power
We Amateurs are tested and must pass in order to get our license, granted its much more convenient today than it was years ago
But we have a tremendous range of bandwidth, and much, much higher power limits.
Plus multiple modes.
We also are qualified to alter or build our own equipment for amateur use.
And the sheer amount of things we learn in this hobby can boggle the minds of non amateurs.
And you never stop learning.
I will definately say this, If you have the opportunity to get your amateur radio license, at least to the general level. Do It!
For you younger people out there the technical benefits can definately help in job seeking.
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That is not the fault of amateur radio but the fault of advancing technology.
With modern day electronics designed to throw away, they are not easily repairable.
Smt components designed to be placed by automation coupled with ultra small component size make it difficult for humans to repair.
Menu driven devices often irritate many with the complexity.
Compatibility?
What drives the constant ongoing updating and planned obsolescence in computers.
Upgrade software, upgrade hardware to be compatible.
Hence anything that must connect to that computer must be upgraded too.
One word! ( will be said three times)
MONEY, MONEY, MONEY!
Actually no it doesn’t it just says the key has to be publicly available. You could encrypt traffic and then post the key in some random corner of an obscure webpage and be purfectly legal.
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