Hamradio

Nathan,

I have a question for people.

Is it possible to use AM radio to illuminate LEDs with a dipole antenna attached directly to the leads of the LED?

The local radio station, WLEO, broadcasts at 1170 AM at 200w day and night and what length antenna would I need to do this?

This is for an outdoor art project close to radio station's broadcast antenna.

salubrium,
@salubrium@mstdn.party avatar

What type of connector is this? It’s a power connector for a little transceiver.

#hamradio #dta

Connector with two spade like elements perpendicular to each other.

ai6yr,
@ai6yr@m.ai6yr.org avatar

Hmm, looks like it's going to be the year of the AI-generated Field Day T-Shirts.

kc2ihx,
@kc2ihx@mastodon.hams.social avatar

@ai6yr

Slightly related: I downloaded a mobile logging app I saw recommended on here this morning.

The description on the Play Store seemed reasonable in regards to not being privacy invading malware, but the AI generated splash screen gives me some pause.

ai6yr,
@ai6yr@m.ai6yr.org avatar

@kc2ihx The use of AI does not give other hams as much pause as it does for me. They "YEAH NEW TECHNOLOGY, COOL! MORE TECH!". But I built my own HF antennas, fix radios, and absolutely hate modern radio menus, so there, LOL.

ai6yr, (edited )
@ai6yr@m.ai6yr.org avatar

Second $10 garage sale 19 inch rack deployed. Found an extra 19 inch shelf I had snagged a few years ago! Need another. Much better than the pile-o-radios. #hamradio #project

Geojoek,
@Geojoek@mastodon.hams.social avatar

@ai6yr

For a split second I was reading that as you getting that Kenwood for $10 at a yard sale and I was ready to throw my phone across the room. 😂

ai6yr,
@ai6yr@m.ai6yr.org avatar

@Geojoek Bargain basement radios are very possible... local hamfests, typically, and some estate sales. -- I get a lot of free HF radios (old!) from people who don't want to bother fixing or selling them... A bunch of Tentecs right now. I did fix one and give it to a new ham (telling them to hand it off if they got their own), and sadly, found they did NOT appreciate not having the latest-greatest shiny thing. 😢 I've given away a lot of fixed HF radios to new hams as it's no use having them accumulating dust in my shack, LOL...

luis_ea1cs, Spanish
@luis_ea1cs@mastodon.radio avatar

( 𝗖𝗔𝗡𝗖𝗘𝗟𝗔𝗗𝗔 ) 𝟯𝗬𝟬𝗞, 𝗕𝗼𝘂𝘃𝗲𝘁 𝗘𝘅𝗽𝗲𝗱𝗶𝘁𝗶𝗼𝗻 𝟮𝟬𝟮𝟱 https://buff.ly/3uIZgaJ

ai6yr, (edited )
@ai6yr@m.ai6yr.org avatar

"It'll be fun" they said. "You'll be done before noon! It won't be much of your day"

"Okay! Sounds fun, I'll volunteer! When do you need me there?"

"5am on Sunday!"

🤪

#hamradio

holgerschurig,

@ai6yr Once you're old enough, you wake up at 04:00 anyway and you won't mind.

ai6yr,
@ai6yr@m.ai6yr.org avatar

@holgerschurig I think you're probably right about that.

ftg,
@ftg@mastodon.radio avatar

That does not look right at all.
23dB attenuation in between the transverter and spectrum analyzer.
The attenuators are specced to 6GHz and 11GHz, so no problem there either.

TX gain maxed out and hitting the transverter with +20dBm on 144MHz and this is what I get.

ftg,
@ftg@mastodon.radio avatar

@recursive
Yeah the UI is great.
And I agree on the trashed CRT.
The CRT being trashed was the reason why the whole analyzer was also trashed.
And then rescued from there by a friend and delivered to the radio club.
A working HP 8564E 40GHz capable (looked at things on 38GHz and 39GHz with it, it works!) got disposed like common eWaste.
Always worth a look into those bins.
Not even the first free garbage spectrum analyzer I have encountered, but definitely the best and most working one.

recursive,
@recursive@hachyderm.io avatar

@ftg Ooh. Mine's 'only' the 22 GHz model

(paid more expected amounts of money for it, but still it meant affordable 22ghz spec an)

kilroy_was_here,
@kilroy_was_here@dobbs.town avatar

As much as I dislike power poles, and I do significantly dislike them, at this point it seems like trying to use anything else is like trying to use different AC electrical plugs and sockets. Seems like a lot of hams, well, went ham over them and made them into a de facto amateur radio standard.

kilroy_was_here,
@kilroy_was_here@dobbs.town avatar

@croyle

Yea, deciding to go from a 7610 to a 7300 and deciding that said 7300 will be more than enough radio for me kinda started a domino effect.

"Do I really need X or am I just buying it to have it?"

So instead of a bigger radio, samller radio, Same with the supply. Instead of a yuge stable of antennas, just 3-6 well-selected ones. Instead of Bury-Flex, RG8X.

And instead of a "cluttered complex shack" look I never liked, beautiful simplicity.

holgerschurig,

@kilroy_was_here @croyle An IC-7300 however won't need 50A. Max 21A is used.

So the power supply you linked is overpowered. And costs double the price of mine.

BTW, my dealer said he uses the linked below device himself and I ordered it, and it works nicely: https://shop.funk24.net/MAAS-SPA-8230-Schaltnetzteil-13-8V-23A

On the rear it has two yellow / red terminals with a screw. No powerpole crimping gear needed.

wardrup,
@wardrup@babka.social avatar

Damn, the bands are so dead today!

wardrup,
@wardrup@babka.social avatar

@ai6yr It would happen on the days I took PTO and planned on doing some POTA, wouldn't it?

ai6yr,
@ai6yr@m.ai6yr.org avatar

@wardrup Yeah... that is the rule for me, too.

croyle,
@croyle@wandering.shop avatar

The first negative I've discovered about the TH-D75A is a personal one: the official and RT Systems software is all Windows-only. Also "Reflector Terminal mode is supported by Windows or Android with 3rd party apps." I really dislike Windows and don't have any Android devices, so this is all unfortunate for me, al
though I've dealt with it on Kenwood radios before. #hamradio

ai6yr,
@ai6yr@m.ai6yr.org avatar

@croyle The amateur radio world really is suffering from so many things being developed for Windows, instead of Linux (which is more in the spirit of amateur radio, anyway). And lots of "it's amateur software but we're only writing this software because we want to make a few bucks"

babetoduarte,
@babetoduarte@fosstodon.org avatar

@VE2UWY @ai6yr @croyle

CQRLog is a very decent piece of ham radio software for Linux, packed with features. I've been using it for years!

https://www.cqrlog.com/

b4ux1t3,
@b4ux1t3@hachyderm.io avatar

ideas:

A antenna system that is a normal NEMA receptacle attached to a coax, with dipole made out of old two-prong plugs, wires cut to length.

Want a different band? Unplug the antenna, plug a new one in.

Someone tell me why this a bad idea before I do it.

ai6yr,
@ai6yr@m.ai6yr.org avatar

@b4ux1t3 The main problem I see here is the chance someone plugs in your antenna into a power receptable and dies. That said, I've been tempted to do this to make it easier to plug in random appliances as an antenna -- ie no chance of accidental electrocution (here's a halogen lamp on 15m) https://www.youtube.com/watch?v=eHjHFDflU6s

on1arf,

A question towards the community.

Consider you would do promotion for in the / / community, or towards youth in a , does it make sense to try to get the local radioclub involved?
Or do you just start a local radio-amateur group inside a or the coderdojo?

df4or,
@df4or@radiosocial.de avatar

@on1arf

If the local club consists of mostly old white men - don't. Just don't.

There is nothing more effective to scare young people away from ham radio than old guys who just brag about what they did 50 years ago, or talk about their ailing health.

holgerschurig,

@df4or @on1arf

old white men

Actually you have been discriminating here. Using that is as lovely as "ok boomer" or "Young rowdies". Is looking down at others.

If people are interested in modern things it's neither a function of age (see the group doing HPSDR) nor of skin color.

mms,
@mms@emacs.ch avatar

As much as I don’t fully understand the appeal of #hamradio , looking at folks setups gives me a huge grim. Radios upon radios with random screens. What for? Who knows. But it looks amazing!

holgerschurig,

@mms

One cannot understand it, since the reasons people are into ham radio are quite diverse. Examples:

Some people collect stones, or beer etiquettes. And some ham radio enthusiasts collect connections to rare remote places.

Some build their own equipment from scratch (yep, we can do that, since after learning and doing the government test we are supposed to know what to do to not create interference with other radio services).

Some like the thrill of using transceivers with only 40 components using Morse.

And some the thrill of using top-notch software defined radios running in software, or on an FPGA.

And so one. It's basically an excuse to play with technical devices. And for sure, it's near the top of Maslow's pyramid of needs.

kb6nu,
@kb6nu@mastodon.radio avatar
kilroy_was_here,
@kilroy_was_here@dobbs.town avatar

Some talk around the #ARRL outage starting around roughly 26:00. One of the panelists is a data security expert and seems to agree with the current ARRL approach https://www.youtube.com/watch?v=AHZxW6ebj1s

#HamRadio #AmateurRadio

megahertz,
@megahertz@mastodon.radio avatar

@kilroy_was_here It's unfortunate that the ARRL has chosen the old school non-transparent route thought. And the whole, "Well, the info we were supposed to protect is already publicly available elsewhere" messaging is pretty out of touch.

holgerschurig,

@megahertz @kilroy_was_here And it's even wrong.

I heard the passwords (or at least v the password hashes) leaked. Something that is not publicly available.

So of course things one don't like to leak did indeed leak.

And a lot of people still don't know better and use the same password on a lot of different web pages. They now need to hurry and change that situation, I suggest using KeepassXC with the browser plug-in.

It's also wrong because of typical US American thinking. In Germany (and probably in most of Europe) you can ask the authority to NOT publish your address in the public list of registered hams. Then it's only call sign and name, nothing else.

Actually some hams do that. They decided to protect some of their personal data. Now their address went into untrusty hands due to ARRL. And they refuse to take responsibility.

IMHO they at least half-truths, maybe even lies claiming "only public data leaked".

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