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Ungrounded Horsey edition
old >>1855439
>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

>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://www.kk5jy.net/magloop/

>In Depth Loop articles
http://webclass.org/k5ijb/antennas/Small-magnetic-loops.htm

>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

>FT8 operating guide
https://www.g4ifb.com/FT8_Hinson_tips_for_HF_DXers.pdf

>APRS
http://www.aprs.org/
>>
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Do you HAM guys actually share information on the wavelenghts that isnt shitcasting or is it all a huge meta hobby where you just discuss how to tune your gear better and get better hardware ?
>>
>>1868787
I assume it's just an archaic version of a BBS
>>
>>1868788

huh, but it could pretty much be a nice public discussion kind of tool, where instead of just some boring written words it could be an actual test of rhetoric and diction.

I can also imagine there being like a type of more close knitted wave data sharing community with your own intrawebs of video sites, bulletin boards and whatnot.
>>
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Well the other day my prostate flared up and I told mabel that if she wanted a little sumpin sumpin she had to by me that new icom I've been eye in. yup I got 22 radios in my shack here and I talk to all my buddies that are still alive. but other than that the bands are all dead.
>>
>>1868787
I've listened in on a few cool chats about Linux/Unix a few times. Sadly I was out of range of the repeater and couldn't join in. I think it's a bit of a crap shoot what you'll get. Helps living in a town with enough people for there to be hams <50y/o
>>
>>1868805
>your own intraweb
A system kinda of like that has been growing quite a bit called AREDN. Requires LOS between points though.
>>
>>1868787
>all a huge meta hobby where you just discuss how to tune your gear better and get better hardware ?
what more could you possibly want? bitrates are shit, and lifeblogging is for fags
>>
To answer the Baofeng question in the last thread, I've bought 2 radios on Amazon that still have the same old frequency ranges... 136-174mHz, 400-520mHz. The FCC "Baofeng Ban" has no teeth, it's not enforced, and the same radios are still for sale.
>>
>>1868859
Links to unrestricted baos?
>>
Stupid question: how do I find and install a small linear for my mobile CB? I’m talking like 25 to maybe 50 watt. Will I go to jail if I ask the dude at the CB shop on the interstate?
>>
>>1868939
There's no point in a small linear, just get a 200-300w one and call it good.
The logarithmic nature of power means there is no such thing as too much realistically, especially with a shitty ass mobile antenna.
>>
>>1868960
But how would I find and install one? Can I just ask the guy at the shop or is he going to think I’m a glowie and kick me out?
>>
>>1868984
Buy one off ebay, what radio do you have?
>>
>>1868984
>or is he going to think I’m a glowie
Unlikely. Alphabet agencies prefer low probability of intercept (LPI) radios. Professionals make sure to use a little power as possible.
>>
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>>1868736
It's the parasite from last thread ;)
This antenna calls for 8awg for the driven elements and 14awg for the reflector.
It states the 8awg is to increase bandwidth, but doesn't discuss the diameter of the reflector. Would using 8awg for everything be a bad idea?
>>
>>1868984
It's plug and play - hardly rocket science.
And amps are legal to own, it's just illegal to use them to tx on certain frequencies above the allowed limits.
Think 'tobacco water pipe'. For tobacco use only.
>>
>>1869288
If weight (and sag) is not a problem, 8 for all should be ok.
>>
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So I made a dipole out of 2 wilson 1000 antennas I had laying around and I'm thinking of putting it in my attic, should I make it vertical or horizontal?
>>
>>1869511
Vertical if you have the room!
>>1869394
Much appreciated! It's big, but I may be able to juggle it with a tripod or two.
>>
>>1868881
Here's the 2 I bought:

https://www.amazon.com/dp/B00Z52HP10/ref=emc_b_5_t

https://www.amazon.com/dp/B00R7LXR7S/ref=emc_b_5_t

But, there's many, many more. There's the UV-5RX3 triband, the BF-F8HP and others.
>>
Sort of a weird question. But did DSB-SC come before AM? Because DSB-SC is merely not giving a DC offset to the modulating signal, such that no carrier trig term exists so surely this would've been done before AM?
>>
>>1869655
What's the best one to get these days
>>
>>1869655
Second link product unavailable
>>
>>1869789
The GT-3TP is pretty nice. 8w, decent design, lots of accessories, and it's cheap. Surprising range. Hits repeaters at a decent distance.

>>1869791
Shows 19 in stock on my end. I'm in the U.S., maybe different elsewhere?
>>
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>>1869683
No, thermodynamics came _after_ the steam engine.
>>
A while back, I watched a cool video on youtube about visualizing standing waves. It was a presentation to a HAM club in a hotel, so it was focused on antennae and the like. I can't seem to find it anymore. Does anyone know what I am talking about, and do you have a link to it?
>>
>>1870311
Sorry, I'm an idiot. I found it here.
youtu dot be/oejsHzurzv4
>>
>>1870313
You idiot. Embed it.
https://www.youtube.com/watch?v=oejsHzurzv4
>>1869288
>>1869394
Any idea why a 6M element wasn't added?
>>
>>1869031
Cobra 29. Pls no bully
>>
>>1870432
That's solid.
If you can install that, you can install the amp.
>>
>>1870436
B-but...I paid to have it installed. I’m honestly scared shitless of electronics. I’ll pull the heads on my truck no problem but I’m afraid to work on the stereo
>>
>>1870432
I would recommend an RM Italy amp because they're powerful, cheap and reliable but they're really sensitive and only want 1-2 watts dead key and I haven't been able to turn any of my cobra 29s down low enough to run them.
If you supply too much power they saturate and swing backwards and sound like shit, ive had to put all 5 of my 29s into storage because they're all useless to me since you can't turn the tx power down low enough.
The solution is to buy an amp that accepts higher wattage inputs, or buy a radio that can be turned down low enough.
Matching the amp to the radio can be a big headache from my experience kek
I had like 6 29s at one point, I literally started giving them away, they can't do SSB and they don't work well with my linears so I have no use for them.
I recommend the 980SSB to everyone who asks what radio to buy, theyre easy to turn down to match with a linear and they do SSB very well.
>>
>>1870451
You have been a treasure trove of information. Thank you.
-tourist from /fit/
>>
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>>1870451
The instruction says max input 7W on position 6 (high) of the input attenuator.
>>
>>1870490
Mine says similar (rm 7505), and it's fine until you talk, once you modulate and it swings, it saturates everything.
You can still use it, it's just not optimal and the quality suffers.
Also, they get hot as fuck really fast when you drive them that hard.
>>
>>1870490
>>1870512
https://www.cbradiotalk.com/viewtopic.php?t=51787
Take a look at this, I've never tried their high drive amps, so I can't vouch for them, but it might work better with a 29
>>
what makes it worth to get into ham? seems to reek of boomers, but at the same time as an ee student i'm kinda interested.

also could help me get a job if i shoot the shit with another hamcel i guess.
>>
>>1870438
Kys, retard.
>>1870451
You too, faggot.
>>
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>>1870614
You ok bro?
>>
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Who else comfy as fuck rn
Finally got the 8 pin aviation connectors in and wired the mic up
>>
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>>1870630
>He wuz a good boi!
>>
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>>1870782
>>
I'm about to buy LoRa modules because I've read that they have great range. now, people use them with 0.5mW, or 0.25. but, I'm curious if I could increase wattage to like 5 watts and get even more range? couldn't find anything about it online. also, I know it's illegal, but I don't really care (just wanna test it so I doubt I'll get in any trouble)
>>
Is there actually a way where I can get into this shit without having to fucking sell my kidneys? And no Baofeng shit, I’m trying to be an engineer and build antennas and shit.
>>
>>1870963
How much is kidney money? If you're in Africa or India, get fucked
>>
>>1870963
go on qrz swap. lots of good used rigs for cheap. I am an engineer, radio is a great hobby with lots of door openers
>>
>>1870699
I need to get /out/ and run another 20m dipole. My girl has been sitting dormant for a hot second.
>>
Relatively new to radio, looking for recommendations on a budget home transceiver.
I have a few Baofeng handhelds and haven't had any issues with them, really enjoy them actually.
And in my vehicle I have a BTECH 25x4 that I don't have any complaints about.
I'm thinking about just picking up another BTECH unit because I'm already familiar with the interface and it should work well enough for me, but just wondering what else might be out there. Not looking to drop a lot of money on it, ideally less than $250.
>>
>>1870982
whatchu got going on there. ft817nd being delivered saturday. Link to those rails?
>>
>>1871007
Not OP. Portablezero.com
>>
>>1870963
HF? You could always build your own rig.
>>
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Will someone breakdown how solder is superior to glue or zipties or tape in securing an antenna wire in a PVC spacer?
>>
>>1871039
Sunlight
>>
>>1871041
Ok, bailing twine?
I only ask because I'm using sheathed wire and it seems like it'd be a pain in the butt to strip a little driven element, wrap a different wire around the pvc, then solder the two together
Or maybe I'm missing the point of the exercise.
I'm seeing the three antenna wires horizontally. The tube is pvc, which is drilled and the wire run through. The jumper is to keep the wire and pvc secure
>>
>>1871042
Try it. It's not going to explode if you don't do it exactly the same way.
>>
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>>1871042
>I'm using sheathed wire
>>
>>1871063
Thank you - he's smarter than me, I'll follow his advice!
I thought I had read that, then did a crl+f to search and it didn't come up since the text is an image
>>
>>1871007
It's the portable zero escort kit, with the Field Power 3 box and BLF-1203AB battery. The antenna is my Diamond RH77CA, but I usually use a MFJ 6m antenna or a 20m homebrew dipole.

They're pretty fun little units with a tone of options. You'll love yours!
>>
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Any info on how to make an antenna for a heathkit gw-10? Used to be from my dad, and i'm fairly new ti radios.
>>
>>1871146
Wtf thats epic, how much does that radio cost with the roll cage vs just the bare unit?
>>
>>1871360
a piece of wire, one quarter of eleven meters long, hanging freely in the air.
>>
>>1871374
The unit looks to be running $630 on eBay, the cage is $72. It's an FT-818 for what it's worth.
>>
>>1871489
>FT-818
Introduced in 2001, HF, VHF, and UHF ... with a watt more output than the IC-705.
Still not picking up on the love of either.
>>
>>1871528
The 705 has a pretty waterfall, I guess.
>>
>>1871528
They're small, and need relatively little power to operate.
>>
>>1871547
But if you only have 5 watts, why not stick with FRS?
>>
>>1871552
Because 5 watts in HF can go damn far. Especially 20m ontop of a sumit. Plus digi modes don't need a lot of juice to be effective. If you want more power nothing is stopping you from throwing on an amp too.
>>
>>1871552
I can't disagree with you there. You can get little hand held Baofengs that output 8 watts.
>>
>>1871555
Fuck, I forgot all about that they're HF transceivers also.
>>
>>1871555
Checked.
I have a lot of respect for the QRP crowd, but it's not something that interests me. In turn, maybe the IC-705 just isn't for me and I should quit trying to understand it.
I'm usually running 35-55w on digital. Climbing a mountain to putout 5 watts seems like a punishment. And SSB, I wonder how far that'd carry these days - in which case emergency use goes out the window. If you have to add an amp, the size benefit is canceled out and you may as well get a ic-706 or ic-7100.
I can see it being a great portable CW radio - with a contained battery - I really need to finish learning CW.
It is exciting to see progress and also frustrating it has taken so long. If it put out 100w, I'd be on the waiting list.
>>
>>1871564
Ya, I'm learning straight key myself. Slowly.
For me at least the amp would be for use at home, then pure qrp /out/.

It all comes down to different strokes for different folks. That's why I hate it when someone just says "what's a good radio?" Because there's a lot that goes into what type of radio you will even like.
>>
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>>1871587
latest 2 hour straight key sprint
>>
>>1871634
That's beautiful. I'd really like to get involved
>>
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>>1871640
They are damn fast. A few minutes later (at 0200UTC) it was all over and the spectrum was blank.
You can always find learners on 40m (possibly techies?) and listen to what they have to say.
>>
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Yaesu FT-817ND/818
Tx: HF + 6m + 2m + 70cm all-mode
Rx: 100 kHz - 30 MHz; 50 -54 MHz; 76 - 154 MHz; 430 - 450 MHz
>>1871552
>why not stick with FRS?
>>1871556
>You can get little hand held Baofengs that output 8 watts
You dumb fucks.
>>
>>1871670
What's the point where you transmit when it's only 6 watts?
>>
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>>1871680
>What's the point of driving a car if it doesn't have 800 HP?
>>
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>>1871699
>Fail
>Poor
>Poor
>Poor
>Poor
>5 watts is plenty for communication
>>
>>1871699
Whats the point of driving a car if it can only go 1 mile before needing to be refueled
>>
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>>1871748
Ahh, it all makes sense.
>>1871699 is a Tesla driving, fart wafting, faggot
>>
>>1871755
Gooood for YOU!!!
>>
>>1871680
You know that is enough for intercontinental contacts, right?
>>
>>1871748
This makes no sense considering anything above qrp requires a ton of power.
>>1871755
>retard hands typed this
>>
>>1871556
You should get your general lol
>>
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>>1871838
>>
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>>1871923
>>
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>>1870852
>couldn't find anything about it online.
Try again.
>>
>>1872092
Found it. Amazon promises 15km
2 PCS $203.00 & FREE Shipping
>>
i can't take the fucking autism on freenode
it's so fucking tiresome to have 80 fucking people constantly whining about why you ask questions when you're just fucking curious
blog over, question starts now
say a yagi has 20dbi of gain
and a little normal antenna has 5dbi of gain
this means that yagi has 15db of gain on the normal antenna, so HOW DOES THE RANGE CHANGE?
jesus fuck, why is it that hard for retards to fucking get when i'm fucking asking a simple question
>>
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>>1872281
Ever thought about picking up a book and putting forth a little more effort, rather than having others spoon feed it to you? The answer to your question is basic shit you learn right away when studying. When you're too lazy to do anything, no one cares. However, you may get that lonely retard to chime in and help enable your indolence.
>>
>>1872281
Watch this:
https://www.youtube.com/watch?v=ysNkjEnoRsU

Then watch:
https://youtu.be/4ykV-53G63A?t=2520
42:00 Minutes until the end of the lecture.
Pay particular attention to free space path loss slide.
If you don't catch it, try:
https://www.youtube.com/watch?v=F-xNMdIXJIs
>>
test
>>
I put a Nagoya antenna up my ass to see if it would fit.
It went all the way in, but now I'm bleeding pretty badly when I take a shit. From your technical experience, does it count as fitting if I'm shitting blood still a week later?
>>
>>1872281
Common Antenna Gain Questions

So after reading this description, you’d think the higher the gain of the antenna, the better. Right?Well, not exactly. Antenna gain is only part of the entire transmission system. You also need to take into account your antenna’s location, height, and average terrain.
>>
>>1872350
>does it count as fitting
Yes, use more lube and take it slower next time.
>>
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>>1872281
I have to recover what I learned in my license course: 20dB-5db=15dB, right.
10dB is a power factor of 10 and 5dB is a power factor of about 3.2.
So the 20dB antenna radiates about 32 times the power of the 5dB antenna.
Now the range factor (same field strength at the receiver) is the square root of the power factor which is between 5 and 6. Or so I think.
>>
>>1872378
Why are you asking me? All I do is shove antennas up my ass and see if I can still hit repeaters.
>>
>>1872392
>*kerchunk*
>*kerchunk*
>kb6blah monitoring
>*kerchunk*
>*static*
>>
>kb6blah clear
>>
>*kerchunk*
>>
>>1872295
This is why no one wants to help you. Study and learn your shit. This is elementary electronics.

UHHH if i pUIt a box on a SlopE what angle will give me the most acceleration?

See why we don't want to help you

read a book stemlet
>>
>>1872502
>WAHHHH THE BANDS ARE DEAD
>>
>>1872542
90° I guess.
>>
>>1872295
I'm not fucking lazy. I've watched and read over 20 hours of fucking material, and the fact that any search I try to put together online doesn't fucking tell me this doesn't help. It really isn't fucking "basic shit." I've watched entire fucking video series on antenna types and the way their profiles work, and it doesn't fucking ever talk about ACTUAL RANGE. I've read through almost EVERY fucking wikipedia article on the subject. STILL DOESN'T ANSWER IT.
>>1872378
Why is the range factor the square root of the power factor?
>>
>>1872331
how the fuck am i supposed to find all of these fucking random videos to get information when all of the antenna videos i've seen haven't helped?
>>
>>1872606
>square root of the power factor?
If I remember right that is a purely geometric effect. When you double the distance, the power the antenna sends now irradiates four times the area it did before and if you want the same power per area you would need to send four times the power. This assumes that the effektive area of the reveiving antenna remains the same.
>>
>>1872644
Ah, I couldn't understand how you got sqrt(power factor) out of 1/(distance)^2.

I know the law, but amplitude and power are two things, and it never fucking mentions which one matters in which case.
>>
>>1872606
>wats the inverse square law.

You aren't being spoonfed because these aren't consumer shit.

Actual range is an end product of what you've engineered.

What skip are you going for? what band are you planning? Local? DX? short skip? nvis?

You build the system for your needs.

You might enjoy FRS or GMRS. They should be able to set you up easy enough.
>>
>>1872651
the motherfucking inverse square law doesn't fucking tell me the range from the goddamned decibel calculation, because the antenna doesn't fucking say if it's the power ratio or the fucking amplitude ratio, which results in two fucking different calculations
"actual range" isn't what i'm calculating--i'm literally asking a simple fucking question
why is every ham so fucking autistic and incapable of practically applying all of the fucking shit in their mind

if there isn't an answer, explain why there isn't an answer in the manner i'm asking

why is pedagogy fucking dead
>>
>>1872606
>I've watched entire fucking video series
>I've read through almost EVERY fucking wikipedia article
Try using actual literature and not relying on shitty YouTube or Wikipedia. Those are not good sources for any type of research.
>>
>>1872656
Hey dumbass, the fucking range changes on the time of day and the conditions of the atmosphere. One day you could talk to the other side of the Earth on 5 watts, and the next someone a state over can't hear you with a kW.
>>
>*kerchunk*
>*kerchunk*
>>
>>1872646
>1/(distance)^2
I didn't use distance (as in meters) at all. All I did is compare the range of two antennas and found that the ratio of their respective reaches is 5..6, a pure number. dB is a dimensionless measure and so is the power ratio. If you want meters you would need at least the power of the transmitter, the wavelength and the sensitivity of the receiver. I can imagine how to calculate the max. distance but I'm not prepared to open that can of worms now. Good night.
>>
>>1872712
Calling the FCC with malicious intent.
>>
>>1872656
>being this retarded lol
Thats why you don't have your general you consumerist piece of shit
>>
>>1872704
wrong
>>
>>1872701
there isn't any fucking literature
look at what people gave me
and i'm not reading an entire fucking irrelevant resource on rf when there aren't any good books that actually give you the ground-up
even the arrl book series assumes shitloads of knowledge and FUCKING SUCKS PEDAGOGICALLY
it's basically a fucking reference book
>>
>>1872701
furthermore, every fucking book that's recommended is all full of HAMshit instead of actually intuitive radio concepts.
>>
>>1872868
The intuitive approach lies in studying the lobes of an antenna. An isotropic antenna has a circle, a high gain antenna has a long and narrow main lobe in the forward area and preferably none or insignificant lobes elsewhere. And digest this first.
Next: visualise what happens if you have a target transmitter or receive bang in the middle of your main lobe
And finally: visualise what happens if you have an unwanted station or noise outside your main lobe.
>>
>>1872656
>>why is pedagogy fucking dead
generation of spoiled brats grew up, became in charge. they get an ego boost from lording their trivial/voodoo knowledge over you
>>
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>>1872981
>they get an ego boost from lording their trivial/voodoo knowledge over you
This coming from the instant gratification generation.
>Types two words into google
>looks at top 2 - 3 results
>head off to a forum and ask someone
>how do I set the squelch on my radio?
>What's the best radio (no other info provided)
Clearly, radio technology is voodoo since it has only been around since you were born. This is how we communicated in the pre 9/11 days.
>>
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>>1872822
>>
>>1872281
>>1872378
This anon has put you on the right antenna track, you want to know how it affects range?
Apply the ITS Irregular Terrain Model.
https://www.its.bldrdoc.gov/media/50676/itm_alg.pdf
If you need help using it see:
https://www.ntia.doc.gov/files/ntia/publications/ntia_82-100_20121129145031_555510.pdf

The answer is so complicated because there are many fields that go in to answering it.
You must know you radiated power, the coax used for feed line, the amount of power from the radio, the radios sensitivity, the distance, local terrain,antenna height, the surface refractivity, humidity, and some statistics.

Follow the algorithm and you will have your answer.
>>
>>1873000
Here is the algo as a FORTRAN program.
https://github.com/Sciumo/itm/tree/master/fortran
>>
>>1872656
Because I paid money and studied it. people now pay me to answer the same questions you are.

educate your whiny ass and read a book
>>
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I'm not a robot
>>
I've got a weird life direction for you all.
I need something to do, a distraction. Stuck at home with a blah job and fussy family and am quickly becoming a depressed alcoholic.
I've always had an entrepreneurial bug, but never been able to make it work out.
I'm a ham and am thinking of building the equivalent of riverofguns.com as a search engine for ham deals. Open to other ideas, I just need a big change in life.
>>
>>1874470
There are plenty of ham radio software projects out there for all sorts of protocols. Trouble is, these are spread all over several different software projects. I would like to see more in the software package for KiwiSDR, including automated signal identification.

So how good are you at digital signals processing (DSP)?
>>
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>>1874481
There certainly are enough half finished projects out there, which steered me towards something user friendly like a search function.
The most I know about DSL is turning the sql knob, but it doesn't look terribly difficult. A few minutes of googling led me to ThinkDSP which looks like a good jumping in spot.
>>
>>1874488
Soft mode: tons of bands and frequencies are reserved specific functions, not all of which are very specific or well aggregated and published as a whole. You mission, should you chose to accept it, is to make a "Frequency navigator" to annotate frequency bands with details on use. Presentation is a problem in itself, to make it thorough and clear. Pic. related is one example of what we have.

Hard mode: make a goniometer as discussed here: >>1872183 This will require a black belt in DSP
Brutal mode: add elevation
Extreme mode: add polarisation
>>
>>1874492
>annotate frequency bands with details on use
Are you suggesting being able to pick up the actual frequency based off of DSP alone, or just a big library to let you know what a freq. is designated for?
ft_eight = {'160m': 1.842,
'80m': 3.573,
'60m': 5.357,
'40m': 7.074,
'30m': 10.132,
'20m': 14.074,
'17m': 18.100,
'15m': 21.074,
'12m': 24.915,
'10m': 28.074,
}

ft_four = { '80m': 3.575,
'40m': 7.0475,
'30m': 10.14,
'20m': 14.08,
'17m': 18.104,
'15m': 21.14,
'12m': 24.919,
'10m': 28.180,
'6m': 50.318,
}

ssb = {'160m': (1.8, 2),
'80m': (3.8, 4),
'40m': (7.175, 7.3),
'20m': (14.225, 14.350),
'17m': (18.110, 18.168),
'15m': (21.275, 21.45),
'12m': (24.93, 24.99),
'10m': (28.3, 29.7),
}
>>
>>1874500
Mainly I was thinking of a library because that indicates the intention, but adding detection of actual traffic is also valuable.

As an example of details to add, there are the ALE frequencies found here:
http://hflink.com/channels/
Then there are QRP frequencies, FT4, FT8 bands etc. There is a bewildering pile of data, all spread out all over the place.

Not sure how to present the data, perhaps like the image in >>1874492 but with filtering, from - to setting, and live generation of SVG.

Harder mode: overlay sounding data from what you receive on the radio (not the Internet), from sounders, ALE stations, broadcasters and more.
>>
test
>>
>>1874507
Yea, that is easy mode lol.
I found the table of that image. Shouldn't be too hard to put something together today
>>
ehh, I cleaned up the pdf and all I got is 'satellite, satellite, satellite'. Guess I'll try something else
135.7-137.8 FIXED MARITIME MOBILE Amateur
160-190 FIXED
1800-1850 AMATEUR
2194-2300 FIXEDMOBILE
2505-2850 FIXEDMOBILE
3.5-3.75 AMATEUR
7.2-7.3 AMATEUR
13.45-13.55 FIXEDMobile except aeronautical mobile (R)
20.01-21 FIXEDMobile
21-21.45
24.45-24.65 FIXEDLAND MOBILE
26.2-26.42 FIXEDMOBILE except aeronautical mobile
38.25-39.986 FIXEDMOBILE
47-50 FIXEDMOBILE
75.4-76 FIXEDMOBILE
138-143.6 FIXEDMOBILESpace research (space-to-Earth)
>>
>>1874597
174-216 BROADCASTINGFixedMobile
322-328.6 FIXEDMOBILE G27
335.4-399.9 FIXEDMOBILEG27 G100
470-512 BROADCASTINGFixedMobile
614-890
1525-1530 SPACE OPERATION (space-to-Earth)
1610-1610.6 MOBILE-SATELLITE (Earth-to-space)
1610.6-1613.8 MOBILE-SATELLITE (Earth-to-space)
1613.8-1626.5 MOBILE-SATELLITE (Earth-to-space)
2120-2160 FIXEDMOBILE 5.388A 5.388BMobile-satellite (space-to-Earth)
2450-2483.5 FIXEDMOBILE 5.150
2483.5-2500 FIXEDMOBILEMOBILE-SATELLITE (space-to-Earth)
2500-2520 FIXED 5.410FIXED-SATELLITE (space-to-Earth)
3300-3400 AmateurFixedMobile5.149 5.429C 5.429D
3500-3600 FIXEDFIXED-SATELLITE (space-to-Earth)
5150-5250 AERONAUTICAL RADIONAVIGATION
5250-5255 EARTH EXPLORATION-SATELLITE (active)
5255-5350 EARTH EXPLORATION-SATELLITE (active)
5350-5460 EARTH EXPLORATION-SATELLITE (active)
8025-8175 EARTH EXPLORATION-SATELLITE (space-to-Earth)
8400-8450 FIXEDSPACE RESEARCH (deep space)(space-to-Earth)
8450-8500 FIXEDSPACE RESEARCH (space-to-Earth)
8500-8550 G59
8550-8650 EARTH EXPLORATION-SATELLITE (active)
10-10.4 EARTH EXPLORATION-SATELLITE (active)
11.7-12.1 FIXED 5.486FIXED-SATELLITE (space-to-Earth)
12.2-12.7 FIXEDMOBILE except aeronautical mobile
17.3-17.7 FIXED-SATELLITE (Earth-to-space)
17.7-17.8 FIXEDFIXED-SATELLITE (space-to-Earth)
18.6-18.8 EARTH EXPLORATION- SATELLITE (passive)
24.75-25.25 FIXED-SATELLITE (Earth-to-space)
40.5-41 FIXEDFIXED-SATELLITE (space-to- Earth)
66-71 MOBILE RADIONAVIGATION-SATELLITE
74-76 FIXEDFIXED-SATELLITE (space-to-Earth)
76-81 RADIO ASTRONOMYSpace research (space-to-Earth)
122.25-123 FIXEDINTER-SATELLITEMOBILE
155.5-158.5 FIXEDMOBILERADIO ASTRONOMY
158.5-164 FIXEDFIXED-SATELLITE (space-to-Earth)
164-167 EARTH EXPLORATION-SATELLITE (passive)
>>
>>1874597
167-174.5 FIXEDFIXED-SATELLITE (space-to-Earth)
174.5-174.8 FIXEDINTER-SATELLITEMOBILE
174.8-182 EARTH EXPLORATION-SATELLITE (passive)
182-185 EARTH EXPLORATION-SATELLITE (passive)
185-190 EARTH EXPLORATION-SATELLITE (passive)
190-191.8 EARTH EXPLORATION-SATELLITE (passive)
241-248 RADIO ASTRONOMY
248-250 Radio astronomy
>>
>>1874597
You know you can get the raw data from other sources?
http://www.itu.int/pub/R-REG-RR-2016
>>
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>>1874604
maybe, lol
>>
>>1874639
When you look through the aeronautical band you will see there is an enormous bandwidth allocated. Old fashion AM modulation sure eats up a lot.
>>
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I want to give a heartfelt thank you to all anons who have spent their time and effort to help me achieve this. More effort and thought went into this than either of my college degrees.
>>
>>1874668
Congratulations!
>>
>>1874668
Way to go!
>>
VK3YE is doing a live radio thing on 160.
https://www.youtube.com/watch?v=zmXmbY84-Ds
>>
>>1874668
whats youre setup?
congrats
>>
>>1874764
Anon, now everyone is going to go and scream nigger and fuck and anal leakage.
>>
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>>1874672
>>1874713
A genuine thank you.
>>1874773
It's me, the FT-101 SDR Edition.
It took 230 days from my first QSO to completion. I'm embarrassed at both how long it took (since digital is so easy), and how quick it was (as digital and online logs have cheapened things). But I'm very proud none the less. That's all I've wanted for the past 9 months. I like to think I would have made Grandpa proud.
>>
>>1874806
i like digital, but i only have 6m. i finally got a country in SA, was real happy with that. thinking about building a yagi or moxon.
i log with wsjt-x and JTAlert, but im not sure how to set that up with LoTW
>>
>>1874779
This isn't reddit. Everything went well.
>>
>>1874818
I'm in the heartland of the US and currently have an offset dipole for 40m and an external tuner.
It's not great what-so-ever for 6M. When PSK says 6M is open, it's 100% shut for me.
But out of the blue, in a 30 minute span, earlier this month I picked up Scotland, England, and another EU country.
It's all about luck, time in the seat, and also calling CQ.
When I first started, I loved going mobile and doing SSB, but given the times and conditions, that's sadly an artform we're losing.
>>
>>1874841
im on the east coast, just a 6m dipole with a 1:1 balun about 30ft up. how much power are you running? i can hear far out stations, but they dont hear me.
ill have a lot more time to play around this winter, and ill be taking my general/extra in either late aug or sometime in september
>>
Anyone have a yaesu ft-450? Thinking about picking one up for a base station if we get more trump bucks.
>>
>>1875615
I would pick a 450D because of the internal ATU.
>>
>>1875615
I thought about it, but for the waterfall and direct to PC connection, the IC7300 seemed worth the $$
>>
>>1868859
>milliHertz
>>
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>>1870519
it's fun to build shit and chat

also, you have a backup if society shits the bed
>>
>>1870982
glowie station
>>
>>1871360
you also need a decent and short earth connection: ideally bury a dedicated pipe or rod less that 2-3 meters away.
>>
>>1870519
If you're a decent EE student, there should be zero barrier to entry.
Show up, pay $15, collect your lifelong callsign.
There are close to 100 different hobbies that encompass ham.
Sharing your mindset would help us weed those out
>>
>>1875824
That's what I was looking at.
>>1876021
I'm not big on waterfalls, although doesn't the ft-450/d support pc use? It's got cat and data ports.
>>
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Moving into a new place till spring.
There is an unused TV coax port on the wall.
Can I take it apart and run a line to an antenna through the wall this way? Or do I have to keep going through the window
>>
>>1876435
Are you able to operate a screw driver?
>>
>>1876446
Actually no lol
My screwdrivers and butter knives are still at the old house.

I more wanted to know if it's common. I don't see much on it online.
>>
>>1876491

Post pics of the outside wall.
>>
>>1876435
If you have access to the attic or crawl space, whichever they used, yes. You'll probably need a line fisher (it's a steel wire thing, with a hook) if it's in the attic.
>>
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>>1874513
>Shouldn't be too hard to put something together today
How is the project progressing?

Interesting to see that many recent rings now come with at least one big screen.
>>
>>1876239
yes, it's just an added cost the ic-7300 has built in
>>
how does an SDR with a clock of a few mHz manage to sample radio signals at least two orders of magnitude higher than that clock rate
>>
>>1877060
*MHz my bad
>>
>>1877060
First off there might be an offload engine in a FPGA or the like. In any case the sample rate is not the problem but the bandwidth of what you are looking at is what counts. You can always mix down the band you are looking at.
>>
Looking to get started with ham radio. Picked up the ARRL book to study for my license. Are there any cheap, beginner-friendly radios you guys would recommend?
>>
>>1877535
What bands?
HF: long distance, often CW but lots of QRN, digital modes are also available
VHF: medium distance, less noise, more chatting
UHF: satellite tech

First determine interest, from that determine bands and then determine radio.
Also ask yourself, will you want a portable radio or a base station?
Elecraft and Yaesu tend to be safe bets but expensive.
>>
https://vail.woozle.org/?repeater=

CW with me
>>
>>1878371
That's pretty neat. I need to practice a lot more before I'm ready to start using it with other people though.
>>
>>1878375
morsecode.me makes it easier. It parses your input and displays it as text.
QRS 10 WPM though if you want me to RCV you, I'm new. I can send up to 20-25 WPM.
>>
>>1878376
I'm still working my way through learning the letters from the link in the OP.
>>
>>1878377
Checked and 3 consecutive post numbers in a row.
>>
Anyone get the ISS MAI-75 transmission? I was only able to receive/decode the SSTV image with an HT and Robot36 app on my phone.

Looking forward to trying again tomorrow as I fat fingered the phone and lost part of the SSTV image.

https://amsat-uk.org/tag/mai-75/
>>
>>1879231
Meant to say I was able to receive tx with HT and cellphone. I brought out my 817nd and moxon antenna too, but it was unnecessary. Used an oldish uv-3r. Stock antenna.
>>
>>1879233
Search period start: 05 August 2020 00:00
Search period end: 15 August 2020 00:00
No visible passes found within the search period
>>
>>1879233
>>1879231
Have they installed their new radio yet?
>>
>>1868736
Working on getting my license. Is it worth really learning all this shit or should i just cram with ham study and learn as i go after?
>>
>>1879577
Cram. Find what you like then dive in. The test is like 60% fcc regs, self study on what you like is more useful.
>>
>>1879577
Also, go straight for at least general. It's not much harder, and opens up so much more.
>>
>>1879565
No idea. Sounds like you know more than I do.
>>
Got my 40m dipole set up at my new place, only to find out the balun is messed up. SWR is way too high.

Looks like a good opportunity to upgrade to a multi band.
Has anyone here used an off center dipole like the 40-6LPOCFD, or one of the MFJ models?
I have a really basic tuner, so I might be better off with a fan dipole that is matched. Not sure.
>>
>>1868736
GOD i want to FUCK that HORSE
>>
>>1868736
Guys i want to get into this hobby asap, tell me the best radio + antena i can get for under 100, i mainly want to chat with random people and listen to the police, i heard the uv82 is nice but is there some better version for slightly more? also dosn't matter if its banned in the USA maybe im able to get it in my 3rd world country
>>
>>1880049
Look for a local club. FM is line of sight/repeaters run by locals. Club members could probably set you up with something cheap after you get licensed.
>>
>>1879691
They got a new radio, but haven't put it in last I heard it was scheduled, but I forgot when.
>>
I need to hunt more satellites.
>>
Hey there. New extra here. What's the best way to loweer a CW qrp HF rig when I'm on the move? I don't have a car so do I have to lug around a battery?
>>
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who /SDR/ here?
>>
>>1880253
I guess a lipo battery and a fold up solar panel.
>>
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>>1880267
HackRF came in yesterday
>>
>>1880049
>and listen to the police

You won't be doing that in many places these days.
>Encrypted P25

It used to be good to listen to here but those days have passed.
>>
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>>1880335
>tfw everything around here's unencrypted except one of the sheriff's channels
I've got to set up an antenna for my Bearcat 210 while I can still use it
>>
>>1880335
>wat is RTLSDR + sdr-trunk

>>1880328
what antenna?
>>
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>>1881091
>Has to haul around computer to listen to scanner
Poorfags BTFO
>>
Should I?
>>
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>>1881107
>>
>>1881091
>what antenna?
Just the telescoping one that came with the radio. I didn't have rabbit ears or anything lying around so I cut some coax into a dipole for the CRT
>>
>>1881099
>has to spend more than 20$ to listen to the poopoo
kek

>>1881120
your antenna looks like shit judging by that video
>>
>>1881125
Well I didn't measure anything, nor am I sure I was transmitting on the right frequency. This is a mere proof of concept I did several hours after a radio I wasn't prepared to receive (ordered 4mo ago and last tracking update is from may saying that it arrived at a sorting center in China) came in, it's going to get better
>>
>>1881132
nice, build a proper antenna for it and an amplifier and you're golden
>>
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>>1881125
Cope
>>
>>1881148
>he is this mad
>>
>>1881134
I've actually got an old vacuum tube VHF/UHF amp I've been meaning to refurbish and find a use for so this is a perfect project for the motivation to do that
>>
>>1881160
very nice. how many watts?
>>
>>1881107
I am a bit surprised this is available on the civilian market.
>>
>>1881099
pic rel begs to differ
>>
>>1881213
Why not? It's a normal mil freak larp tool. You get what you pay for.
>>
>>1881213
It's a fake. Literally just Baofeng guts in a lookeylikey shell for airsofters to larp with.
>>
>>1881239
>Looks moderately less inconvenient than hauling around a laptop.
I'll stick with my pro-106.
>>
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>>1881239
>$200 PortaPack add-on
>$59 metal case for PortaPack
>$150 HackRF
>>
Does cable length affect transmission quality if the antenna had equal elevation in both cases?
>>
>>1881519
Read a book.
>>
>>1881526
But reading anything other than a gun catalog or the bible is unamerican!
>>
>>1881536
>He doesn't read Big 'uns
Shameful
>>
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>>1881162
No clue, there's no model number to go off of and I can't even find the thing in an Arvin catalog I combed through

>>1881398
You can get all of that for the cost of a legit HackRF if you go Chinese
>>
>>1881554
>go Chinese
No.
>>
>>1881571
Your loss
>>
>>1881526
Smash your foreskin on the keyboard.
You can’t, you’re American
>>
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>>1881213
Alibaba is a pretty greasy place where you can pick up fake rolexes and $1,000 rifle scopes, 'gold' coins for $0.50 ...
>>1868736
Anybody else just living in auto-mode for the next few years?
>>
>>1881571
where do you think HackRF got their components from?
>>
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>>1881770
See ya in three years.
It is nice to see that it pops quick
>>
>>1881879
We're at 75 now. May see 100 next year
>>
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Solar cycle 25 is beginning and there's even a tiny sunspot.
The prediction (red) is always: same as the last cycle and then 'open'.
>>
>>1881952
>Cycle 25 peaks in '25
Hehee
>>
>>1881519
Probably t bh desu
I use a coat hanger to get TV reception
>>
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>>1882211
>coat hanger
Two of them for the 2 m band.
>>
I bought two SDRs, the RTL-SDR and the NESDR SMARtee XR, and I can not get either of them to work. I have tried them on my PC running Windows 10 and on a variety of Pi's running Raspbian and it seems that neither of these devices can be identified by any of the machines. Despite running through every possible setup and troubleshooting guide I could find, I have gotten nowhere. What am I missing here? I find it unlikely that the two entirely different SDR devices I purchased would happen to be defective, and more likely that I must have overlooked something. When I say they cannot be identified, I mean that neither device appears to exist when plugged in. Not even as an unknown device.
>>
>>1882274
What do you expect when you buy garbage?
>>
Hi guys. If I get a ham radio license, can I have a little 1 hour talk show on the ham radio bands as long as I don't broadcast music or ads?
>>
>>1882372
or monetary shit.
Lots of people shoot the shit for hours about religious and political stuff - though some autistic fucks spaz out that it's not in the ham morale to talk about religion or politics.
>>
>>1881952
>inb4 the peak is getting lower each year
>>1882274
>can't get cheap shitty SDR to work by himself
lurk moar
>>
>>1882274
>He has to downloaded the drivers from online.
What an absolute fucking retard, that’s what happens when you don’t answer my questions (>>1881519), spastic cunt
>>
>>1882519
> does adding resistance to signal path impact the signal?
Question answers itself
>>
>>1882524
>Does height above obstacles aid in transmission
I don’t know, but I ask how much so
>>
>>1882532
sure, https://en.wikipedia.org/wiki/Fresnel_zone
>>
>>1882274
>RTL-SDR and the NESDR SMARtee XR
Those are both RTL-SDRs. Did you run Zadig and install the drivers through it on Windows? If not then you've not been following guides properly.
>>
>>1882532
>Hmmmm. There must be a reason people use towers for antennas, rather than burying them in the ground.
Hmmmmmm.
>>
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>>
>>1881099
Good luck with TGID searching. Uniden decided to leave that out after the 396 for some god awful reason.
>>
>>1883027
I use my pro-106 or PSR 600. Meanwhile, I have 2 pro-97s and a pro-163 that just collect dust.
>>
What is the point of nets? I've heard maybe two that actually held a discussion, ortheewise they're all a series of check in and then they close the net.
>>
>>1883158
Traffic control practice, mostly.
>>
>>1883159
Every Friday the CARS net coducts an emergency power exercise on 7248 kHz.
>>
>>1883159
Is it normal to just drop your callsign? For shits and giggles I guess since there's not much else for a reason lol.
>>
>>1883281
Callsign, name, location.
Net control may greet you.
>>
>>1883281
>>1883326
Net control will log that you checked in.
>>
>>1883464
Only if you're a regular. If not you have to make yourself known.
>>
>make a HF dipole
>install it in the attic
>sitting at a S5 to S7 of background noise because my neighbors are growing weed and the lights throw off a fucking hell storm of RF
God damn it I hate niggers
>>
>>1883915
call the cops on them
>>
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>>1883915
Can you talk to them?
http://ka7oei.blogspot.com/2019/03/quieting-insanely-rfi-noisy-led.html
http://ka7oei.blogspot.com/search/label/LED%20filtering
>>
>>1868736

Why is there a midget strapped to the side of that horse? Is it some kind of radio emergency midget? (Sorry, non-ham here.)
>>
>>1883915
So build/buy a phasing unit and see if you can work past the noise.
>>
Help me /ham/, I'm trying to get into the hobby. I bought a Baofeng UV-5RA online, because it seemed to be reliable and highly recommended, however the seller sent me an UV-82 instead. I dunno if it was a mistake, should I keep it or try to get the correct one? The price seems to be about the same, but the 82 has +1W on the RA, and is a big bigger. I am a complete beginner, I am still studying to get a license, corona fucked up the exams here and I haven't seen any available dates from the government yet.
[spoiler]I'm in Brazil[/spoiler]
Any tips/guides would be highly helpful, thanks in advance.
>>
Yoooooooooooo perseids meteor shower is coming in. I bet meteor scatter is going to be a FIRE mode to work right now!

https://www.youtube.com/watch?v=f5ZLh9Fnrxk
>>
>>1884422
Fuck, this board doesn't do spoilers.
I forgot to add, that the battery is also a suspicious 10.000 mAh, a lot higher than what's written on the box....
>>
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>>1884422
>I'm in Brazil
Some build their own satellite equipment. The eastern part of PY is covered by the transponder.
>>
>>1884502
Military or amateur lol??
>>
>>1884502
This is the main reason why I'm getting into the hobby, actually. I want to be able to make a station that can receive telemetry data from cubesats on the amateur band, and everything that I can learn on that regard is nice. The problem is that I'm currently living in an apartment, so I won't be getting any useful signals like that.
>>
>>1882622
Zadig cannot find the devices. They don't exist when plugged in. Not even Linux can see them.

I'm going to shoot for defective and return them.
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>>1884657
tail -f /var/log/dmesg | grep USB
after plugging it in
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>>1884817
Shouldn't that be before plugging in?
>>1884657
For the RTL-SDR, if you run
>$ lsusb | grep DVB-T
You should at least get something
I have the v3, I get this from the command above:
>Bus 001 Device 004: ID 0bda:2838 Realtek Semiconductor Corp. RTL2838 DVB-T
>>
How's the traffic on CB? Anything or is it just dead air and sparse trucker chatter?
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>>1882372
no, not really under FCC rules. one-way broadcasts are okay for morse code practice, beacon stations, and RC control of drones/model aircraft. no amateur has exclusive right to any freq. and everyone has to make space for each other on the air. you could talk with other hams for an hour, but not a one-way broadcast. maybe you could bend the rules if your talk show is about weather and propagation
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>>1885341
>maybe you could bend the rules if your talk show is about weather and propagation
kek'd
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>>1884422
I use UV-82 too, it's pretty nice and basically the same as UV-5R just with different interface. Don't read the battery mAh number, it's usually just the usual 1800mAh.
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>>1885478
>it's pretty nice
So is taking a piss in the morning
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>>1882372
>>1882378
You'd have to do it as a "net" (ie. round-table discussion with other hams). That's how the Liberty Net skirts the rule against one-way broadcasting. Most people try to avoid politics, but there's no FCC rule against it (see again the Liberty Net for an example)
>>
Has anyone tried radio direction-finding with their SDR, or other commodity equipment? Been reading about early HFDF systems on wikipedia, and it's inspired me to make a Baofeng-finder for when poop hits the rotor.
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>>1886371
here.

thinking about the problem some more, you could probably do it entirely in software with 2 SDR dongles and a pair of loop antennas. just orient the antennas at 90 degrees to one another, identify stations received by both dongles in software, and do simple trig to find the signal's direction.

wonder if anyone's done this already. would be rad to have a radar-style GUI with stations and their directions in realtime.
>>
File: arn.jpg (43 KB, 1000x300)
43 KB
43 KB JPG
Amateur Radio Newsline Report Number 2233 with a release date of Friday August 14 2020 to follow in 5-4-3-2-1.
The following is a QST.
- The first Virtual Ham Radio Expo breaks new ground.
- Hams in India activate for monsoons
- A father pays tribute to a son who's a Silent Key.
All this and more as ARN Report Number 2233 comes your way right now.

A QST is a bulletin of interest to all amateurs.
https://www.law.cornell.edu/cfr/text/47/97.111
Authorized transmissions.
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>>1886371
https://is.cuni.cz/webapps/zzp/download/120329420/?lang=cs
http://www.panoradio-sdr.de/tdoa-transmitter-localization-with-rtl-sdrs/
>>
>>1886371
>direction-finding
Sure, there is even a category for it:
https://www.rtl-sdr.com/tag/direction-finding/



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