tomswartz07

Any reason to use this over the officially supported IRC/XMPP gateway?

https://get.slack.help/hc/en-us/articles/201727913-Connect-t...

It would be a good proxy for those radios, but if you're licensed and are simply looking for an inexpensive transceiver, Baofeng UV-5R radios can be found on Amazon for ~$20 and will get you working right out of the box.

If you try to mock up a station using a TX/RX SDR system, it would probably much more expensive and require significantly more hardware.

It's a very different architecture. The original LimeSDR was able to receive from 100kHz - 3.8GHz. The LimeSDR Mini can only do 10MHz - 3.5GHz. It also only supports about 1/2 the bandwidth and sample rate.

The official page highlights more differences: https://www.crowdsupply.com/lime-micro/limesdr-mini

It's important to point out that the two reviews listed from 2016 and 2017 are for the previous version of the LimeSDR, not the LimeSDR Mini which was just recently released.

The main CrowdSupply page has a very good comparison table: https://www.crowdsupply.com/lime-micro/limesdr-mini

If you're just using a standard RTL-SDR, then yes, an upconverter like HamItUp or SpyVerter would work.

However, the LimeSDR Mini supports down to 10MHz out of the box, which is "good enough".

If you really need to get the 160, 80, 60, and 40 Meter bands then the converter would be needed, or you can just use the previous-generation the (full size) LimeSDR, which can receive down to 100KHz.

Are you talking about using the repeater on the ISS, or contacting one of the astronauts on the ISS?

Contacting one of the astronauts is fairly difficult, as they have no particular scheduled time where they listen it. It just happens to be luck-of-the-draw.

As far as using the repeater, I think most of the radios are stowed. http://www.ariss.org/current-status-of-iss-stations.html

I've never heard of the EchoLink connection to the ISS... Do you have details on that?

I have no idea if it's still an issue, but ~1.5 years ago, I was sorting through my email, and discovered that a small plain text message was taking up >3MB in my inbox.

I dug in a bit, and it turns out that Grammarly was embedding a gigantic amount of code into the email messages in the form of stylesheets and other things.

Needless to say, after raising it up the chain, we had the extension blocked company-wide.

Additionally, to further point out, there's a giant, vibrant open source community around the SDR software.

SoapySDR/Pothos do great work, as well as the fine guy behind GQRX, the open-source SDR gui.

Surely.

https://www.rtl-sdr.com/ is a great site for updates on new hardware and software.

Most commonly, I use my SDR for: - Listening to ham (amateur) bands - Receiving NOAA/Meteor satellite images - Airplane tracking

There are quite a few other use cases, which I've outlined in several talks that I've presented at conferences over the years; https://github.com/tomswartz07/CPOSC2017/blob/master/Softwar...

I've been using Software Defined Radios for the better part of 5 years now and it's amazing the types of things you can receive with them.

The article here discusses a cheap (but slightly modified) SDR, but if you step up ever-so-slightly in price to something like an AirSpy Mini, the difference in signal quality is astonishing.

>in Asia

I think you're misunderstanding.

This is Puerto Rico, a US territory. The people in those images are United States citizens.

This is exactly the case.

Further, the parent comment is ignoring certain companies and agencies that explicitly prohibit cell phones on site.

It's my personal opinion, but if I had 6 properties, I'd sell them. Why would I need more than one place to live?

That's fine if they refuse to sell, but as the article points out, there's an enormous demand for homes.

Several of the people mentioned in the article own more than one property and are entirely unwilling to sell.

Understood, and agreed. :)

They do have an x64 build as of about a year or so ago. Maybe even a bit longer than that.

They have a native Linux version? Why running it under Wine?

`function weather() { curl "http://wttr.in/$1";}`

Not sure why it needs to be more complicated than that.

Anyone have any info on the amount of data that was encoded?

It looks like it was a low resolution image with 5 frames, so I expect it to be about 1 Kb, max?

The spoiler on Port 5432 is pretty intense. :)

There are a lot of mods that allow you to do exactly that.

My favorite that does exactly as you mention is KOs (Kerbal OS). It's basically a programmers interface for it, allowing for really precise control.

A YouTuber, Scott Manley, has a pretty good (albeit old) video on the topic.

https://www.youtube.com/watch?v=FPDPzsnlHOI

It's based on the antenna design. These 'jammer' devices aren't dish based; they're designed after Yagi-Uda style antennas, in the format of a 'rifle' that the user points at the drone. The radiation pattern for them is exactly as I described. [1]

[1] https://www.electronics-notes.com/images/antenna-yagi-radiat...

The problem being that in order to effectively 'jam' a signal far away, antenna theory requires that a fairly significant proportion of that radio energy must be directed out the back of the 'antenna'/gun. Right into the person firing it.

That's also ignoring the fact that if the signal to a drone is lost, it's more than likely to fall out of the sky like a ton of bricks.

I loved the ThinkPad T420s when I worked with it at me previous job.

Extremely easy to upgrade, well built, difficult to damage, great battery life with minimal TLP configuration, and the slim form factor was great for mobility.

To further point out, the test that caused the incident was not a 'routine test'. They had purposely disabled a large number of safety catches in order to perform a risky and ill-advised test.

The aim of this test was to determine whether cooling of the core could continue to be ensured in the event of a loss of power.

Here's the thing though:

How is that any better or different than notifications that already exist on your system?

GitLab has web browser notifications that trigger on CI builds.

Literally every instant messaging service has notification systems that work on the OS.

What is the added benefit of putting it off of the main screen and on a small 1" tall screen where you have your hands?

An AD environment refers to Active Directory; typically a setup used in large corporations with 100's of users and accounts.

This is wayyyyy overkill for a home user.

Besides the obvious trolling occurring here, I'll answer your question on behalf of OP.

Arduino was (at one time) considered the holy grail of Makers. They had open source schematics[1] and were very easy to use while quickly prototyping something.

For Makers, once the prototype phase had finished and it was time to move to 'production', the ATMega and ATTiny chips were very easy to buy in bulk and use directly in the product, with the guarantee that the code written on the Arduino would (for all intents and purposes) work on the embedded chip.

Long story short, before they shot themselves in the foot by infighting, they had a respectable standing among tinkerers and makers.

[1] https://www.arduino.cc/en/uploads/Main/Arduino_Uno_Rev3-sche...

Random people manually driving their cars are "modifying" their input as well.

You have drunk drivers, texting drivers, distracted drivers....

The human attention span is incredibly brittle as well.

In terms of QA'ing a manual driver in the US? You take a 10 minute driving test when you're 16 and you're licensed to drive for the rest of your life.