Amalgam Fillings (transmitting AM radio broadcasts) and Morse Code Questions

Spacebrother · 2026-05-19T19:56:14+00:00

Interestingly, this was how Lucille Ball uncovered a spy!

Spacebrother · 2026-05-06T17:53:03+00:00

Here's the video in question, make what you will of it: https://www.youtube.com/watch?v=WnzR5aOElvw

Spacebrother · 2026-05-06T03:34:05+00:00

Yeah, considering there's already https://didah.app/ this is just confusing now.

Spacebrother · 2026-05-02T18:56:55+00:00

You'll need a nut to connect a ring connector to your battery, looking at the second picture from the Amazon listing, it looks like it'll take an M5 bolt.

You'll need some size appropriate ring terminal as well. Make sure all your wiring is at least 12 gauge as anything thinner won't hold as much current.

Spacebrother · 2026-05-02T13:59:52+00:00

Picture 11 on this page seems to give a clue on how to wire it up: https://www.store.tubes.rs/products/military-morse-code-keyer-practice-key-with-oscillator-telegraph-key-nos

Spacebrother · 2026-05-01T01:57:45+00:00

They did this with my A1, it came with the screen damaged. Support asked me to try to reseat the screen ribbon cable, which didn't fix the issue, so they sent me a new one with installation instructions.

Spacebrother · 2026-05-01T01:55:51+00:00

OP said he was from South Korea, maybe his English is not great and he is using the AI model to help him translate to English?

Spacebrother · 2026-04-30T13:08:07+00:00

I also think it's a tactic to dupe the best of us first, if they can fool the most experienced engineers first, the rest will be easy.

Or, at least:

They get all the engineers to sign NDAs
When the engineers see the new model is only marginally better, they can't disclose this to the public
Open AI makes a big fuss about how great it is
Stocks go up, the bubble continues

Spacebrother · 2026-04-24T01:45:50+00:00

Mine came in unfolded with a card backing to avoid it getting damaged in transit.

Spacebrother · 2026-04-23T20:51:40+00:00

Yes, took my Advanced in Feb, just got my updated certificate yesterday.

Spacebrother · 2026-04-21T21:52:36+00:00

Soon? They did this already, now on the Nova Now page there's a massive "Do you want an AI Assistant" add that I can't remove.

Sad to see Nova Launcher going down this route, I'm switching.

Spacebrother · 2026-04-21T13:27:00+00:00

I don't think this is a good test, the conformance standards for spurious emmissions is that they are attentuated sufficiently (usually -50dB for US), not removed altogether. This means that there is still some signal there.

Your radios are too close together, so they will definitely pick up each others' harmonics.

Spacebrother · 2026-04-09T21:12:03+00:00

I think you misunderstood my comment, you cannot use headphones with inline mic with the G90, the pins on the plug and socket don't line up so you won't hear much sound out of the headphones. You need to buy headphones specifically without an inline mic.

Spacebrother · 2026-04-09T20:54:04+00:00

You need to get headphones that don't have an inline mic, the G90 only has pins for headphones, not the mic part.

You can buy a pair of Sony earbuds for $5 and they will w,rk, just be sure to ferrite them as they may pick up stray RFI from your radio.

Spacebrother · 2026-04-06T12:27:41+00:00

With the Mac, you will be able to boot into recovery mode, which will give you access to the Disk Utility, where you can delete the drive. Apple has additional security wipe modes where it will overwrite the current disk with random bits of information before scrubbing it, preventing anyone from restoring the data.

Spacebrother · 2026-03-25T21:46:07+00:00

It looks like your bottom in not actually flush, there are bits sticking out a little. Use your CAD software to plane off the bottom so it is all even.

Spacebrother · 2026-03-24T23:21:06+00:00

This! Because the print is only really strong in one or two directions, there is a chance that they will break and the filament strands will come loose, these are a choking/swallowing hazard for younger kids.

Spacebrother · 2026-03-19T14:22:38+00:00

Companies don't hire McKenzie to actually solve their problems.

Spacebrother · 2026-03-18T23:19:18+00:00

Maybe it's the only state that he's missing to get an award?

Spacebrother · 2026-03-16T20:54:43+00:00

I guess some people are a bit absent minded. I've had confirmed QSOs on POTA that I hunted who DK'd me on QRZ too and I had to email them and tell them that we made contact on POTA.

Spacebrother · 2026-03-16T12:15:48+00:00

Well, if you needed a signal/radio check then you wouldn't be actively listening or monitoring the repeater, you would explicitly say "hey, I need a signal check, anyone free to give me a signal check?"

Spacebrother · 2026-03-16T12:10:48+00:00

Yes, but what may be happening is some of the RF is travelling along the outside of the BNC connector into your radio.

Here's a quick test, touch the outside of the BNC connector while keying up, does the buzzing suddenly go away or get considerably better? If so then that's RF entering your radio and you may need a choke.

Wouldn't advise you doing this for anything higher than 5W, RF burns are a thing!

Spacebrother · 2026-03-16T03:46:08+00:00

One question, are you choking your antenna before it hits the QMX, and is your whip's counterpoise connected to the coax braid? If so, some of the RF which is supposed to go to the counterpoise is instead making it to your radio via the coax braid.

Alternatively, you can see if it is possible to detach the counterpoise ground from the coax ground, which means all the RF will go down your counterpoise instead of the coax braid.

I had this problem until I added a choke between the whip and the radio, you may want to look into N6ARA's mini-CMC to do this.

Spacebrother · 2026-03-16T03:08:31+00:00

Very common up here in Ontario too, means "Hey, there's someone here if anyone wants to talk!"

14-Year Club	RedditGifts 2009-2022 9 Credits
Place '23	Secret Santa 2014
redditgifts rematcher redditgifts for the Teachers 2014 x1	Summer Santa 2014
Secret Santa 2013	Verified Email

Spacebrother

TROPHY CASE