Longtime member Palmerston North Linux Users Group John Eyres writes:
Hi, at [last week]’s meeting I asked if anyone could help with UPS and networking for the guys I work with. They have muscular dystrophy, and can’t move/breathe on their own. The UPS works OK, but the batteries are getting old. Their cabinet is too small. … Please email me if you have any ideas. They do their own scripting, home automation and development…
Joseph will talk about why Git is useful for version control. How it compares with SVN and how to use it.
The Intersection of Amateur Radio and Computing
Speaker: Giovanni Moretti – ZL2GX and Graeme – ZL2GZ
Amateur radio is a hobby of exploring the limits of radio, electronics and digital technologies. Once licensed, you’re allocated a worldwide-unique callsign and can operate (and build) radio equipment capable of international and space-based communication.
Being an interest centred on electronic communication, there’s naturally a strong overlap with computing, with Arduino and Raspberry Pi and Linux being widely used. There are many facets to the hobby ranging from the seriously technical through to providing communications support for search-and-rescue (SAR), Civil Defence and Amateur Radio Emergency Communications (AREC).
In this talk, we’ll will give an overview, including how you can:
communicate internationally from your backyard (without the Internet or cell phones)
use both voice and digital modes on-air
design and build radio transceivers and antennas
send signals 2000km using just a Raspberry Pi and a micro-transmitter.
use Linux to link into international Internet-linked DMR and DStar (digital mode radio) networks
become involved in the ongoing efforts to build a regional radio-linked TCP mesh network
Should any of these pique your interest, we’ll finish by outlining how you can become licensed.
As the world slouches slowly back towards normalcy in the wake of COVID-19, the PLUG is looking forward to resuming in-person meetings at our usual venue, hopefully sometime next month—both the lockdown and renovation work have complicated our access to the Milson Community Centre, so we won’t be able to meet there this month.
However, club President Nick Skarott has set up video conferencing software for our usage, and we are planning on holding a virtual meeting for anyone interested on Thursday the 11th of June, at 7:00pm. We’re unlikely to have a specific agenda, but the software (Jitsi Meet) supports screen sharing, which seems to work well, so if there’s something you’d like to demonstrate for the club, you’d be most welcome to do so—or, just come along to say hello to some familiar faces.
There are a few ways to connect to Jitsi; Nick has produced a helpful PDF. It works from either a mobile phone and a laptop. If you don’t have a working camera and/or microphone, that’s OK; you’re most welcome to come along and observe anyway. There’s also a text chat in the window, if need be.
Re-using the same passwords on multiple sites causes a lot of security problems, but humans aren’t good at remembering a large number of passwords. Part of a good solution is a secure password manager. Tom will demonstrate a few Linux-friendly options, including his own favourite, password-store.
Speaker: Nick Skarott
AV1 is another in a line of freely available patent free video codecs. But despite the fact other free codecs exist like VP9, adoption of this codec outside of YouTube is next-to-non existent. What makes AV1 different to the point that has streaming giants like Netflix and Twitch to all the big hardware vendors like Intel, AMD and Nvidia joining the Alliance for Open Media (AOMedia)?