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"Turn on and tune in" edition

Old thread raided by FCC: >>2387557

Eternal thread theme: https://www.youtube.com/watch?v=mf_P0BXrYTo

>New to /ham/? Read this shit!
http://www.arrl.org/what-is-ham-radio
https://www.fcc.gov/wireless/bureau-divisions/mobility-division/amateur-radio-service
>Your search engine of choice works well too!

The FAQ is now back:
https://wiki.cybsec.io/index.php/HamFAQ
>NEW FAQ is updated to preview 13
https://files.catbox.moe/3xr6gh.htm
>The wiki is down but is archived: https://archive.is/PjR5s
>Idiot's Guide to Coax Cable
https://www.pcs-electronics.com/guide_coax.php
>Looking for frequencies to monitor near you?
http://www.radioreference.com
>Basic Rx loop fundamentals
https://www.w8ji.com/magnetic_receiving_loops.htm
>DIY SWL Mag. Loop
http://www.kr1st.com/swlloop.htm
>Small Tx Loop
http://webclass.org/k5ijb/antennas/Small-magnetic-loops.htm
>In Depth Loop articles
http://www.kk5jy.net/magloop/
>Homebrew RF Circuits
https://www.qsl.net/va3iul/Homebrew_RF_Circuit_Design_Ideas/Homebrew_RF_Circuit_Design_Ideas.htm
>NEW Library
https://mega.nz/file/UCgEGAjb#rwNcnMAQCUUbSp8supsFvn9QEHCWUW86eLcZa16ZG4Y

>Online Practice Tests:
http://aa9pw.com/
https://hamstudy.org/
https://hamexam.org/
> Real-Time Propagation Data
http://prop.kc2g.com/
>Space Weather
https://www.swpc.noaa.gov/communities/radio-communications
>WSJT-X 2.1 User Guide
https://physics.princeton.edu/pulsar/k1jt/wsjtx-doc/wsjtx-main-2.1.2.html
>Homosexual (ft8) guide
https://www.g4ifb.com/FT8_Hinson_tips_for_HF_DXers.pdf
>APRS
http://www.aprs.org/
>how do I into Morse code in a good way?
https://pastebin.com/XwATbRrH
>>
>seventy-threes
>>
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>>2408063
>>
>>2407960
why is FT8 guilty of the homosex?

YO YO YO WHERE MY FRS BROS AT!!!!
>>
>>2408068
It isn't. Boomers just hate how it does its job so well: short and quick contacts. They would rather have every contact be voice so you have to listen to them talk for hours on end about their latest colonscopy at 1500watts.
>>
>>2408076
kek. never dabbled in digital morse but it always seemed like an interesting way to just rake in QSOs.
>>
>>2408076
>short and quick contacts
I recognize that gay blowjob
>>
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>>2408081
>>
I'm going to start my study of HAM again soon. Taking the typical
>pleb
test first then
>journeyman
>mastercrafted wolf armor
tests together, even though I could probably do all 3 at once.

I just want to key up but I don't want my name on another list.
>>
>>2408087
>I just want to key up but I don't want my name on another list.
CB. FRS if you wanna talk to the kids in the neighborhood.
but seriously, the name on a list thing is pretty lame. at least its one that you have control over, which really means who gives a shit.
what bad thing has happened to ham because hes on the FCC licensed list?
all i can think of is when people become nuisances.
honestly the mentality kinda reminds me of nutnfancy's ham radio episode i saw years ago. he had some random HF base radio, no real accessories, no real knowledge, no license; because he doesn't want to be on the govt list.
the guy who buys massive amounts of weapons, armor, explosives, makes very public youtube videos with them including blowing up random shit with tannerite. is/was a county sheriff, so everyone in the country knows who he is and where to find him at a quick web search.
but he doesn't want to be on that fcc list.
>>
>>2408105
>what bad thing has happened to ham because hes on the FCC licensed list?
Getting lots of junk mail from ARRL, HRO, and the local clubs begging for you to join.hkwr0
>>
How does one use a computer to control and transmit a Yaesu 891? Trying for 80m and 40m transmissions. Id like to have my computer have all of its cables set up to the radio and just do everything from the computer including my microphone.
>>
>>2408131
TNCs.
>>
>>2408148
Any leads on which units/what software? Trying to take my rig to the next level
>>
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how's my prostate coming through?
>>
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In canada you can remove the address part from being published. Most boomers don't know about it tho.
>>
>>2408176
that should say FRS and CB under "unlicensed users can". GMRS is licensed.
>>
>>2408174
>how's my prostate coming through?
typical 80m chat but that guy is an aviation listener or whatever its called.
why is the file named that?
>>
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>>2408183
Isn't only GMRS repeaters license required?
>>
>>2408131
Any of the mobilinkd TNCs. They tend to be vouched for by everyone. As long as you have CAT control, you'll be able to control your radio through any software that does it lik FLRig or Ham Radio Deluxe Suite.
>>
>>2408354
Sorry, meant to reply to >>2408154.
>>
>>2408236
any gmrs radio that uses power above 2 watts requires a license.
basically if you have something that doesn't look like a shitty walmart blisterpack radio it needs a license.

also that image is outdated. gmrs licenses are only 35 dollars now.
>>
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>>2408978
>requires a license.
>>
>>2409077
It's spelled "loicense"
>>
digital radio tv

like watching broadcast networks; abc, cbs nbc, etc...

are they able to track ratings if you are watching through antenna t.v ?
if so how ?
could they when it was watched on analog frequency ?
>>
>>2409104
li·cense

/ˈlīs(ə)ns/
Learn to pronounce
noun
a permit from an authority to own or use something, do a particular thing, or carry on a trade (especially in alcoholic beverages).
"a gun license"
>>
>>2409112
No.
They can't, you aren't transmitting to them, however your smart tv may be phoning home with the info.
No.
>>
>>2409112
Smart TVs may be spying on what you're watching and communicating with (((them)))

Also, the TV programs emit coded ultrasound signals through the television speakers which are picked up by hidden programs or functions on your Android or Iphone and which again can communicate back to them. It also happens with lots of websites and servers to deanonymize the user and track your usage.
>>
>>2409112
>are they able to track ratings if you are watching through antenna t.v ?

Yes.

>if so how ?

Receivers generate/emit a signal in the mixer. About halfway through this doc they explain how the mixer works on the super simple Pixie transceiver but the same principal applies to just receive-only radios. https://w1sye.org/wp-content/uploads/2017/01/NCRC_PixieOperation.pdf
>>
>>2408194
You drop the 'hammer' or drop the 'maul' when you key down with authority/lots of power. Probably derived from CB lingo since I think 'hammer down' also means mashing the gas pedal.
>>
>>2409190
everyone else said no they can not keep track of ratting through recieving tx only

why are you correct? im not going to got throught the link yopu post4ed im getting sloppy
>>
>>2409125
>TV programs emit coded ultrasound signals through the television speakers which are picked up by hidden programs
>>2409190
>Receivers generate/emit a signal in the mixer
>therefore they're spying on you
Stop answering questions you don't understand. This is as pants-on-head retarded as using a goldfish bowl for a space helmet.
>>
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>>2407960
What can i realistically do with a baofeng as a ham? I know this question is retarded but im a complete scrub.
>>
>>2409340
Attempt to complete a qso without throwing it in a large body of water.
>>
>>2409340
listen to all the greatest hits on 101.7 FM
>>
>>2409305
Oh look another resident vacuous tech opinion piece. Care to cite sources that back your opinion up before you scurry away again? Otherwise how about you be quiet about things you don't understand if you can't back up your words.
>>
>>2409282
>everyone else said no they can not keep track of ratting through recieving tx only
>why are you correct? im not going to got throught the link yopu post4ed im getting sloppy
Oh okay, you want me to spoonfeed you but don't want to eat what daddy gives you? Don't bitch about being hungry then.
https://en.wikipedia.org/wiki/Tempest_%28codename%29
>>
>>2409422
wikipedia is not a source everyone knows that
>>
>>2409340
>baofeng as a ham?
For damage control they made a radio sandbox for the retards, to get out of that sandbox you have to prove you're not a retard. You shouldn't have any interest whatsoever in 'baofeng' unless you'd really like to know what the orange crayon your neighbors eating tastes like.
>>
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>>2409428
I said it once, I ain't saying it again. I'm back quiet on the swirly bowl.
>>
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I have a PHD in wrong-ology. When I say you're wrong you better believe it!
>>
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Scurrying intensifies
>>
any good resources for learning antenna design? I mean in terms of fundamentals, all I seem to find are texts talking about x type of antenna
>>
>>2409533
>learning antenna design?
EZNAC
>all I seem to find are texts talking about x type of antenna
Everthings been written about. There's the simulator, there's the real world outcome of them for the last 100 years.

Maybe in 10-20 years of putting it to use everyday you'll understand it.
>>
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>>2409416
>>
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>>2409484
>>
>>2409606
Everything you don't understand is a personal attack. Instead of trying to grow and learn you just double down.
>>
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>>2409623
>>
Any clubs/forums/communities worth joining, or are you better off doing your own thing? Complete newcomer looking to get into the hobby here, UK-based. Haven't got my loisence yet but planning to do so before the summer is over.
>>
I'm mulling over the idea of getting a server rack and mixing ham radio and server gear.
Is that a horrible idea?
>>
>>2409340
>APRS
>FRS
>Marine
>Ham phone
>Commercial FM
Best $30 you could spend in ham radio
>>
>>2409886
If you like interference.
>>
>>2409754
i can't speak for the uk (im a burger) but in the states i have seen a national lobby organization (ARRL) locally i have seen ham clubs, amateur radio clubs, repeater clubs, scanner clubs, dx clubs, cb clubs, cw clubs, digital clubs, antique radio clubs, midfer clubs, lower clbus, hifer clubs. also associations thereof.
>>
>>2409340
>>2409889 gave an honest answer. where most people mess up is using the stock antenna. buy other antennas. buy a nagoya whip. buy a chink foldable big whip. buy a mag mount omni. buy an antenna stand, HRO's lmr-400 feedline and tools, and a nice base antenna and set it up in the back yard.
the radio can be chinkshit, buy the good antenna with the shitty radio.
>>
>>2409939
Ethernet runs on 2.5V unless you're doing PoE. Seems pretty insignificant.
>>
>>2409889
This, I fell for the expensive HT meme just to realize that there isn’t much of a difference between Baofengs and the ones that run you hundreds.
>>
>>2410051
Yup. Upgrade the antenna. Think out of the box. Make your own or get a car mount.
>>2410222
Checked.
I've been fighting off getting a top 3 to get into digital, but can't pull the trigger.
The Baofag even scans far faster than the TYT which is painful
>>
>>2409340
>136-174 MHz
(Part of) Air Band, 2 Meters, High Band Business Band, High Band LMR, MURS, VHF Marine, NOAA Wx
>222-225 MHz
(Part of) 1.25 Meters
>400-520 MHz
UHF Business Band, 70 Centimeters, UHF LMR, GMRS, FRS

that's off the top of my head with my UV-5X3.
manual claims 65-108 Rx, cant scan it though, also tried to scan 88-107 and it won't do it. not sure whats up there.

https://baofengtech.com/wp-content/uploads/2020/09/uv-5x3-manual.pdf
I got it a couple years ago, not sure if its still the cool baochang triband.
>>
>>2409886
Why would you do this for a radio you intend to use for more than scanning? on a shelf above your desk is ideal so you can reach the controls.
>>
Boyos I need to solar power a short wave radio that transmits and is mobile (in case of the apocalypse).

What are my options with solar power?
>>
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>>2407960
Hey radio folks, my family is getting an RV with lots of rooftop, and I have been given the green light to get as crazy as i want (I told them doing the work myself, buying top shelf everything could cost over $5,000) adding 2-way radio comms to the RV. I have been digging around doing research and I have come up with a preliminary equipment list I wanted to run by you guys for your opinion.

Ranger 2970N4 12/10 Meter Radio (Some of us have technician licenses, couple generals)
President Thomas FCC CB Radio
Midland MXT500 GMRS Radio (We have GMRS licenses)
Icom M605 Marine VHF Radio (We have a boat)
Icom IC-7100 dedicated D-Star Radio
Yaesu FTM-400XDR dedicated System Fusion Radio
33cm - new to this band, looks like converted motorola commercial mobiles on ebay.
For 6 meter, 2 meter, 1.25 meter, and 70cm I need to do more research on what my best options are for power and features.
That's all the bands I found mobiles for we could use(no use for business band or LMR AFAIK)
>>
>>2410451
Radios are a tool. If you didn't understand how a hammer works would you be buying nails? A radio isn't going to serve you any purpose if you don't understand the intent you are using it for. There are many options available. But ultimately it comes down to your understanding of what you are even doing in the first place and from your post you have no fucking clue or you are some type of GPT-3 algorithm copy and pasting shit to derail any productive discussion on this website.
>>
>>2410423
That's a fair point and question on practicability.
I'm concerned about desk space.
Right now I have 2 power supplies, ic-7300 and 2m/70cm radios, swr meters, and amp so I can hardly fit a keyboard and mouse on the desk too.
Separately, I have a NAS (basic network server for backing up and movies aka 'the cloud!')
I'm thinking in the next 5-10 years of combining it all into a clean, in-wall server frame and perhaps have PC controls. I mainly make HF contacts and scan VHF/UHF.
That'd allowed me the flexibility to add even more radios, perhaps a separate listen/TX radio with a beverage antenna, and more VHF/UHF and grow my NAS addiction.
Or maybe that's a lost cause and I should get a bunch of raspberry pis and RTLSDR and focus on an antenna farm.
>>
>>2410460
You're casting a broad net while fishing for individual solutions
>Epic vacation bus
Jelly about that and the project
>General and Tech
>10m 6m gmrs 2m70cm CB marine digital
Whew. I'd gravitate also to HF and POTA since that's my fun.
One or two MARs modded radios can take care of everything.
The real work starts to come when you think of antennas.
>>
>>2410577
look into bigger desk solutions.
look into shelving solutions above, around, and below the desk.
personally i used 2x4x8 studs and 4x8x3/4" sheets of plywood(ripped to 3' because i'm not stretch armstrong) and custom made my own desks with 45's cut into some to wrap around the room.
>>
>>2410579
>You're casting a broad net while fishing for individual solutions
I'm not sure I follow, you mean asking about all the radios at one time instead of individually over a few days?
>Jelly about that and the project
It's gonna be cool. I hope I kinda basically get it for free some day ;) I'm the only one besides the retired parents couple buying it who has any real interest in it.
>I'd gravitate also to HF
That's actually why I got the Ranger in there for the 12m/10m @ 400w. I'm really interested in sitting down with that thing.
>The real work starts to come when you think of antennas.
Yeah I wanted to narrow the VHF/UHF amateur bands to a single quad band but I didn't see one by the big 3, and I'd like to avoid putting cheap baochang radio in such a nice expensive piece of technology.
>>
>>2410451
>>>/k/
>>2410460
Check the web for info about this. There are lots of tips/pitfalls to check for. One of the big pitfalls with RVs is the lack of a suitable ground plane on the body. So half-wave antennas (and others which don't require a ground plane) are key, similar to fiberglass boats.
>>
>>2410639
>So half-wave antennas (and others which don't require a ground plane) are key, similar to fiberglass boats.
Oh wow that's crappy. They haven't picked one out yet but they're looking for a barely used 40' RV/Motorhome. I guess they all have fiberglass roofs?

I actually WAS wanting to get a full wavelength NMO for each radio. i wonder how much trouble it would be to lay aluminum sheeting in the roof when the ceiling is out to run cabling.
aluminum sheets can be had in various gauges from sheet metal distributors, quick search showed 1 company advertised maxing out at 6'x 20'. i bet i can get someone to cut 40' off a 6'+ roll of something between 20 and 30 gauge.
>>
>>2410683
I think you'll spend some money if you want something that won't be causing problems in a year.
>>
>>2410467
lol...?

eat a dick faggot
>>
>>2410623
>Casting a broad net ...
Sounds like you're wanting to buy a mountain bike and trail bike and general bike and racing bike, etc. for a single cruise.
Something like the ft-991 is almost a one-stop solution if you MARs mod it for CB.
Grab a few Baofags to keep in touch with parties who go out fishing/whatever and you're 90% there.
Then I'd turn to a big antenna switch with 4-6 antennas, or less with a motorized antenna
>>
>>2410639
I saw someone on qrz tape radials to the rv roof and claimed great success. My memory is fuzzy though
>>2410623
Search
>site:qrz.com rv radials
And you'll get a lot of antenna ideas and other RV setups to look through
>>
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>>2410683
Any tips on identifying what appears to be electrical interference?
Wasn't there a few months ago
>>
>>2411338
>identifying what appears to be electrical interference?
Identifying from a single spectrogram?
>>
>>2411345
Lol, the process of maybe troubleshooting or making some sort of fox hunt style system.
But I found which circuit breaker it's coming from. Went from an S3 floor to sub S1.
Had it not been in the house, I'd be up a creek.
>>
>>2411338
looks like you got it.
if all else fails make sure every battery powered device on the property has batteries removed, and kill all power to the property. then check the spectrum analyzer.
>>
>>2411221
lol...?

try to commit to learning something for once
>>
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Just got a GMRS license.
Is it just a watered down version of local ham repeaters?
>>
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>The curve is real
>Why couldn't we flatten it?!
>>
Someone recommend me a CB radio that I can plug into my cigarette lighter, I've been doing trips from NH to VA and been bored to sin and just want to listen to some truckers. My car is not conducive to wiring a radio to the fuze box
>>
>>2412143
You will be able to listen using any rig, as long as you put a compatible plug on it, however transmitting will probably not work well (blown fuses, fires, low voltage radio issues, etc.).
>>
>>2412124
Does this include WSPR and other automated digital modes / beacons?
>>
>>2412149
>QSO Activity Graph
>An amateur radio contact, more commonly referred to as simply a "contact", is an exchange of information between two amateur radio stations. The exchange usually consists of an initial call, a response by another amateur radio operator at an amateur radio station, and a signal report. A contact is often referred to by the Q code QSO. It is often limited to just a minimal exchange of such station IDs.
>>
>>2412148
actually running a cb should be fine. you will just get more noise on cig plugs.
most cars cig plugs are 15 amps, more than enough to even throw out 40 watts. at least on vhf
>>
>>2412074
in a way, yes.
its a good way to have longer distance comms with people that don't want to get a ham license.

though, note that at least where im at, most of the repeaters are dead
>>
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I recently installed a CB antenna in my apartment, basically a long aluminium arm at the end of which I put the antenna base, which is a radial radiant and a vertical radiator (https://www.thunderpole.co.uk/base-cb-antennas/sirio-boomerang-a.html). Pic rel is the big version, which I swapped for that in the link

My problem is that it's a bit too close to the building's roof (next floor up) and because of that I get rough SWR readings on my radio (about 1.8) and I sometimes cannot copy people which can copy me.

The solution would be to install it on the building, at the top, but if it's found out I'm getting fucked big time. I can, however, set it in lieu of old TV aerials which are unused now. Would probably need a digital means of collecting RF from rooftop to my apartment.

Any tips in such a configuration ? Really this is also the same for HF ham bands, sucks to be in this place.
>>
>>2412242
forgot to add that I often hear Spanish/Portuguese guys, but very faint and with a lot of static, a real pain to listen to. Local DX is fine on FM, as long as it's not "behind" me otherwise I simply don't receive the signals.
>>
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>>2412244
>>
>>2412149
I'd assume so, it's the total QSOs entered into ClubLog which can be viewed after you login by viewing 'DXCC Analysis' and scrolling to the bottom.
I'd assume ham activity has bloomed since March 2020 due to the lockdowns and working from home, but you'll never hear ARRL giving you such insights.
>>
>>2412209
Fantastic.
I have relatives a few miles away where I found are within radio range. Given GMRS extends to family members and is $3.50/yr made it a no-brainer.
I'd wish it could be encrypted, but if it's just rarely used, that's acceptable.
What's the logic behind requiring the lower wattage on the lower frequencies? Protect FRS traffic?
>>
Im trying to get into radio for the first time. I've been stumped for several hours trying to figure out carrier + side band AM, I cannot picture wtf is being explained for some reason. Am I too brainlet for radio?
>>
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>>2412398
>>
>>2412398
It's just a wave on a wave.
Play tone on your PC speaker. Turn on/off, that's CW.
Slide the volume control up/down, that's AM. The 'tone' is one wave, the sliding volume control up/down is the other 'wave' which is your signal.
>>
>>2412242
cool pic, bro
>>
>>2412409
>>2412445
Okay, then how the fuck does single side band work? I thought the entire idea was that the bade band was modulating the carrier signal. How is information being sent without one now?
>>
>>2412608
>Okay, then how the fuck does single side band work?
Do AM, filter out the bits you don't want.
>>
Has anybody here ever deliberately shorted their RF to ground?

Like have your antenna jack go directly into a grounding rod?
Did you match the grounding rod for your wavelength?
>>
>>2412682
>Has anybody here ever deliberately shorted their RF to ground?

That's how most aluminum antennas work
>>
>>2412608
The carrier and one sideband are suppressed by filters before it goes into the final, that's how you save power for just that one sideband signal.
The receiver needs a beat frequency oscillator to mix a carrier into the received signal.
>>
So I just heard about all this stuff and I want to get into it but with the actual engineering and math and stuff. You guys know of any book, webpage or whatever on that?
I'm doing my major in electronic engineering and while we do have analogic electronics and signal and systems courses, we don't really see anything about radios specifically.
>>
>>2413087
Just get your general license and play with HF. People wouldn't treat it like alchemy if there were good resources.
>>
>>2413097
There is no "license" in my shithole, that's why I want to actually know what I'm doing.
>People wouldn't treat it like alchemy if there were good resources.
There should still be something somewhere right? I want to try building a receiver by myself but I can't find anything on actual radio theory aside from basic RF propagation and whatnot.
>>
>>2413102
Not really how it works, you're putting the cart before the horse, it's a lifetime hobby about learning and most don't manage to learn jack shit. Reading theory is useless, just pick something and do hands on. There's a library in the OP thread also.

'I just want to build a receiver'... Yeah, good luck finding variable capacitors. Look at the QDX/QCX kits for inspiration otherwise you're going to end up studying about steam engines when the only parts that exist are for fuel injected gas cars. Plenty of electronic stores here but god help you if you try to build a receiver using the parts they have available, the legacy parts are super rare which is what all the 'theory' talks about using.
>>
>>2413138
>Reading theory is useless, just pick something and do hands on
As I said, I'm doing my major in electronic engineering and you really cant just "do hands on" in most circuits, it actually gets even worse when dealing with analogic stuff.
There must be sources or something with the actual electronics, It's just really hard to get.
I highly doubt all those cheap chinese kits were actually designed by the manufacturers. They usually just copy the schematics from somewhere and call it a day.
>>
>>2412255
The signals at regular intervals could indicate you are overloading the input. Is there a strong broadcasting station nearby? An attenuator might improve this, better yet add a broadcasting band filter.
>>
>>2413147
Dunno what else there is to say. I meant tru(sdx) not QCX. Play with HF, the parts are big enough for 'hands on'. Pick some silly project schematic you see online and build it. I'd recommend getting on the air with HF before bothering with any of that.

As I said, good luck getting variable capacitors. Any 'theory' book is going to reference parts that haven't been made in 50 years. The real-world designs are ways to hack what exists today into something usable and those designs will be obsolete in 10 years when those parts no longer get made.. Rinse, repeat..

Every design is pretty much going to be using a PLL and probably a microcontroller. Gone are the days of variable caps, variable inductors and crystals, instead we have weird hacks to get around using such expensive legacy gear.
>>
is eton 750 worth the $400? is it a noticeable step up for night time listening compared to a ccrane skywave?
>>
>>2408131
For my IC-706, I'm using a Digirig. With the correct cables, its pretty much the most dead-nuts simple way to put a usb port on a radio that didn't originally come with one.
>>
>>2408354
I like my mobilinkd 2, but when I went to check the site, they're out of stock for pretty much the rest of the year. I'd consider mobilinkd a no-go at this point, unfortunately.
>>
>>2413087
>You guys know of any book, webpage or whatever on that?
Sure. Some anons put together a FAQ that answers that. In there you will find a link to a book that explains it all in sufficient detail to make it possible to make your own radio.
>>
>>2413155
there is a VHF (or UHF, can't remember) repeater up a mountain near my location (I'm at ground level), but certainly this can't cause interference. perhaps an FM station, in which case I can't say for sure.

most often when I hear someone, the signal comes and goes like a fading from/to static

cheers for the help anon
>>
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>>2407960
Is this a good one to get or no?
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>>2413774
it's the best
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>>2413774
It's very popular among the stations I've worked on HF, if that tells anything.
>>
>>2410577
>HAL Telereader
Whoa.. I remember seeing one of those in 1989. I almost bought one off a guy in Ontario two years ago.
>>
>>2412124
>red deer.jpg
>>
I have a shithouse 15W VHF kit from the 80s that I bought at an auction for $2. It runs off 12.8V, do I need a car battery or can I just use one of the 6000 12V switch mode wall warts I have kicking around my house. The one I’m thinking of using can do 12V 8A. Is it really that important to run radio shit off a battery/regulated supply or is that more stupid boomer talk?
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>>2410051
Yeah except the baofengs have utterly no front end filtering and they get overloaded like fuck by broadcast stations and the like. They’re good for repeaters but basically fuck all else
>>
>>2411827
The fact that you take pride in what little knowledge you have in amateur radio tells me everything I need to know about you. You must be a NEET.
>>
>>2413087
I don't know why everyone is being so difficult here.

You can build your own radio with an antenna, demodulator and speaker. Just need to tune a matching network.

If you don't understand these terms google it. Don't expect any help from these cretins, someone got angry at me for asking for information about out of the box options for powering a radio with solar as if I that means I can't make a solar power system and a radio from scratch.

Place is filled with low IQ NEETs.
>>
>>2414214
You can have some noise from a wall wart and that's it, if it can deliver enough power, it's ok. another thing to consider, most HAM equipment want 13.4ish volts to deliver full power when transmitting so at 12V you'll have less output power.
I don't think undervoltage can damage the equipment
>>
>>2414234
If I chuck a filter cap across the 12V will that help?
>>
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I'm a ham with a convenient /diy/ battery box for portable ops, lighting, you name it. I took inspiration from ice fishing and kayaking style builds.
The power went out the other day while I was working from home
>Modem/internet dead
>HF dead
>VHF dead
>Desktop computer dead
>Monitors dead
>Wife gets cut off in the middle of her work presentation
I tried /g/ and the electronics general here, but nobody wants to lend a hand.
I was able to use the inverter in the battery box to power up the modem and we both finished the work day with the remaining battery in the laptop, but I'd like to expand so I don't lose my power like that again.
I was thinking an Uninterruptible Power Supply or three, but at the same cost I could pick up some Bioennos and have something far more versatile.
>>
>>2414329
>as thinking an Uninterruptible Power Supply or three, but at the same cost I could pick up some Bioennos and have something far more versatile.
Your call, I have a used UPS with dead batteries (real cheap) and I swapped the two small batteries (6AH) for batteries for lawnmowers (30AH)
Lifepo4 batteries with an inverter is basically a UPS without the charging function
>>
>>2414331
My concern is the long-term effects of leaving a lithium battery on a charger for years. I haven't looked into which batteries should be fully discharged before recharging and the composition of a UPS.
/g/ was getting defensive that I shouldn't expect more than a few minutes of relief from a UPS.
>>
>>2414332
>/g/ was getting defensive that I shouldn't expect more than a few minutes of relief from a UPS.
kek, i have 6-8 hours on mine now
lead batteries will be ruined way faster than lithium (that's the problem of UPS, they all have lead batteries that are on charge for years and have no remaining capacity)
you can look what is used in solar, maybe get a charger from a reputable brand like Victron ?
Lifepo4 charger -> batteries -> inverter
Basically a stand alone solar installation without the solar panels
>>
>>2414240
try and find out but common mode needs filtering with choke inductances usually
>>
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>>2414336
That's more or less my current setup for a hydroponics pump setup I have as I wait for a solar panel.
>>
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>>2414342
$500 Dell UPS that seems to be a 8Ah lead battery wrapped in marketing BS
>>
>>2414329
Standby generator or battery bank + inverter (a la solar style). I wouldn't bother bodging together ups units. The thing about ups is they can only handle so much current draw, even when not running on battery. I had a small one on one of my computers that would alarm whenever I put it under heavy load. Sure, you can add larger batteries, but that doesn't increase the current draw limit. Run time will be extended and recharge time too. Most of these supplies are low rate dumb chargers that take 12 - 18 hours to charge an 8 Ah battery.
>>2414342
>dude weed
>>
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>>2414370
>Standby generator
That sounds like the safest, most passive idea.
>dude weed
kek. Just cucumbers. I run a little water pump to keep the mosquitos and algae away
>>
>>2414222
>I don't know why everyone is being so difficult here.
Difficult? He got direct pointers: >>2413689

>>2414329
>I was thinking an Uninterruptible Power Supply or three, but at the same cost I could pick up some Bioennos and have something far more versatile.
Use a UPS that can deliver sufficient power, with enough energy that you have time to start your generator. Around here you can get statistics for power failures, a 3 second blackout is a pain but not long enough to need a generator.
>>
>>2413237
please sirs
>>
>>2414653
I think any of the high Z shortwave receivers are going to perform about the same. Tecsun PL-380 is about $50. If you want full range or SSB then you'll spend more.

I don't think the 'desktop' variety receives offer all that much more, for that price you're also bumping into the range that a Xiegu X90 costs. A xiegu doesn't have a high Z input however so a dedicated receiver would likely be better for the same antenna.

One of the multi-input SDRPlays might be a good option, they have phase control which can act as noise cancelling, but that's on the low-z 50 ohm inputs. They also have just a single high Z input but you can't combine that for phase noise cancelling.

IMO I'd try to get one of the Belrig receivers. https://belrig.by/
>>
>>2414661
thank you sir. I'm drawn to the eton because it has proper coax antenna jacks as well as long wire/random wire jacks. I use at night to help fall asleep. I just want better reception/more consistent reception of shortwave stations as the fade in/out with my ccrane skywave with a long piece of stainless steel wire clipped to the whip keeps me up sometimes. I'm not sure if the usecase changes your recommendation but i'll find a way to translate that site. thank you again
>>
Oi boomer cunt, you missed your weekly Thursday rant about fat people.

>>2414668
Belrig site literally has an 'english' button on it somewhere.
>>
>>2414668
There's like a Tecsun 360 or whatever that has the antenna jack also for like 1/4th the price of a desktop radio. If you don't need SSB I'd just get one of those. Otherwise the Belrig or the genuine Malahit might be good. I think most or all of those radios end up using the same receiver chip.
>>
>>2414217
UV-5X3 has some front end.
>>
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>>2414214
So it turns on and received just fine. But when I let up the amount of hideous noise is just insane. Adding a filter cap made no difference, neither did adding a choke. Running it off a car battery worked fine though.
>>
>>2414917
sad but you need a good power supply unfortunately.
I am thinking about putting 2 solar panels on the roof and a battery only for radio with something to disconnect the regulator / charger to have only the battery in the circuit when using radios at home.
>>
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>>2414342
>>2414329
here's my UPS, homemade, lasts for about 2½ hours instead of the usual 15 minutes (with my load size)
>>
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>>2414951
I'm started making a few more boxes like this and adding an inverter and 20Ah battery.
I can share with family/neighbors and use the for camping/POTA/etc.
Which leaves me with - what's the best budget lithium these days?
I have a Bioenno, but it seems amped and chink brands have 'best price!'
>>
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>>2415021
I only have AGM batteries so I can't tell, didn't want to bother with charge controllers, etc
>>
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>>2414951
>>2415023
Why go to the extent of building a UPS when you could just run off the battery and have it charging?
>>
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>>2415032
I like the idea of having it portable (it's on wheels) plus I wanted to use mains power until it goes out (not always on the inverter), but yes you can directly run from the battery+inverter
>>
Happy Field Day
>>
>>2410199
If this is a troll. It's a good one. Computers introduce all sorts of digital hash all over the spectrum. Especially all those switching power supplies.
>>
>>2413102
>>2413138
https://f6glz.files.wordpress.com/2013/09/csts_book.pdf
http://sparkbangbuzz.com/
The easy ten is easy to build and works for me 100% of the time.
>>
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>>2415086
>>
>>2415556
kek
>>
>>2415139
>If this is a troll. It's a good one. Computers introduce all sorts of digital hash all over the spectrum. Especially all those switching power supplies.
If you have any decent writeups on this subject, that would really help. I am looking to pipe data in real time into a computer from a set of machine tools and scientific instruments and then use it for a feedback loop into controlling power supplies, and I don't feel like using an Arduino. Thanks
>>
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>>2415556
>>
>>2407960
Who here's rocking field day?
>>
>>2415670
32/50 States via SSB. Wishful thinking says I'll reach 50/50 tomorrow.
>>
>>2415670
I was at the local club and made about 20 contacts through all the noise. It definitely showed me what I'm doing wrong with my set-up.
>>
What's with all the weird FT8 format messages today.

WD1CK K8UNT 3D NY
>>
>>2416069
Unlicensed trolls too dumb to pass a multiple choice test.
>>
>>2416069
>3D NY
It's ARRL Field Day.
>3
3 transmitters at the station
>D
It's class D, a home amateur station
>NY
Need I, a Yuropoor, explain this to you?
>>
>>2416069
Field Day in Amerilard Land. Thus, their messages are different.
>>
>>2416069
>dick cunt
Do HAM boomers really?
>>
Just heard on the scanner that an Omar Reddit was wanted by the police for a shooting.
LOL!
>>
>>2416532
Nice
>>
not a very fast thread is it...?
>>
is it always this slow ?



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