qjkxbmwvz

joined 1 year ago
[–] qjkxbmwvz@startrek.website 107 points 1 day ago (2 children)

go2rtc, a camera streaming tool that's useful for security cameras, at least has some humor in their choice


port 1984, of course.

[–] qjkxbmwvz@startrek.website 25 points 2 days ago

All I see is *******

[–] qjkxbmwvz@startrek.website 8 points 3 days ago (1 children)

Anyway, here's Wondersmall.

[–] qjkxbmwvz@startrek.website 16 points 5 days ago

We used it to create women


I feel like you're not really paying attention.

(/s...)

[–] qjkxbmwvz@startrek.website 16 points 1 week ago

I'm drunk, and it's all Mexico's fault!

[–] qjkxbmwvz@startrek.website 5 points 1 week ago (1 children)
[–] qjkxbmwvz@startrek.website 3 points 1 week ago (1 children)

Sorry you're getting down voted


lots of replies from folks unclear on what the diffraction limit means, atomic resonances, etc.: https://www.newscientist.com/article/2161094-a-single-atom-is-visible-to-the-naked-eye-in-this-stunning-photo/

[–] qjkxbmwvz@startrek.website 3 points 1 week ago

Parent didn't say resolve, they said see


you can't resolve stars but you can most certainly see them.

Light up a single atom enough and you can see it (unclear if this works with a dark adjusted naked eye or if a long exposure is required): https://www.newscientist.com/article/2161094-a-single-atom-is-visible-to-the-naked-eye-in-this-stunning-photo/

[–] qjkxbmwvz@startrek.website 2 points 1 week ago

A single atom of gold is far too small for any photon in the visible spectrum to interact with.

That's incorrect


single atoms can, and do, interact with optical photons.

https://arxiv.org/abs/2410.19671 https://www.nature.com/articles/ncomms13716

And the entire field of super resolution microscopy relies on small things (e.g., molecules) interacting with light.

[–] qjkxbmwvz@startrek.website 11 points 1 week ago (4 children)

Wait until you hear about the Arctic circle...

 

People often complain about San Francisco's public transit


and to be sure, it's not perfect by any means (multiple separate agencies doesn't help). But the historic streetcars are pretty neat!

They're painted with the livery of various historic streetcars from all over the country (and a few international, I think). Best of all, they run alongside the modern fleet


same route, same fare.

 

Noticed a few days ago that Sutro Tower's red blinking lights are now white. Just asked them on their website form, but wondered if anyone else knows the story with this.

Personally, I miss the red ones!

6
submitted 1 year ago* (last edited 1 year ago) by qjkxbmwvz@startrek.website to c/amateur_radio@lemmy.radio
 

Howdy!

I got my Technician in early 2000s, and last year finally upgraded to Extra. Looking to set up a very basic shack.

I'm looking for an HF setup, with most of my use probably using digital modes, but would like the ability to use voice.

Current transceiver is on loan from girlfriend's dad, a Ten-Tec Scout 555


50W HF unit with separate modules for each band. One limitation of this is that the modules set the mode, so it's LSB on 40m, making e.g. FT8 not possible (without some hacking of code or perhaps hacking the module).

Antenna is end-fed with an off-the-shelf 49:1. Currently only have 20m half-wave, but have just enough room for a 40m half-wave in the attic, which is the ultimate goal.

For digital modes, it looks like there are sort of 3 classes of radio:

  • "full digital" where the radio has e.g. a USB port and handles audio, transmit, and frequency set.
  • Some computer-control with RS232, but uses computer audio+adapter to transmit.
  • No digital, use adapter to transmit. This is what the current setup uses (and it works great!)

I'm leaning towards a conventional transceiver, e.g., something from ICOM, Kenwood, Yaesu, (or others) rather than an SDR unit. I'd like the ability to go up to 50-100W if possible.

I don't have a hard-and-fast budget; would like to keep it <$1000 if possible; mostly just looking at used transceivers. Something like a Kenwood TS-590 looks pretty amazing and very "plug-and-play" (but pushing up against price). Something like a Yaesu FT-920 looks pretty feature-rich too; and even something more affordable like an ICOM 706 or even a 725 is probably more radio than I need. Or just grab a new 7300 and call it a day!

Anyway...clearly, I don't know exactly what I want, but figured I'd ask folks with more experience if they have any wisdom. Thanks!

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