Onno (VK6FLAB)

Anything and everything Amateur Radio and beyond. Heavily into Open Source and SDR, working on a multi band monitor and transmitter.

#geek #nerd #hamradio VK6FLAB #podcaster #australia #ITProfessional #voiceover #opentowork

  • 2 Posts
  • 116 Comments
Joined 1 year ago
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Cake day: March 4th, 2024

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  • I saw that chart too. When you click on the F-type link you learn it’s rated up to 4 GHz. The summary table is off for several connectors.

    You cannot argue that the mating is poor if it’s rated to 4 GHz.

    There is nothing wrong with using the centre pin of the coax, it’s one less join in the chain and it’s rated at over 500 matings. It’s not for lab equipment, but if you want to connect something and leave it there for the next decade, there’s nothing better.



  • What’s your beef with the F-type connector? The centre pin is the coax core, compression tool to terminate the coax, solid connection, rated to some absurd frequencies, all round easy connector, no soldering or extra pin required.

    Source: I installed two-way satellite dishes for a time and still use those connectors on my HF antennas as a radio amateur - yes, I know, 75 Ohm - can’t say it’s ever stopped my 10 mW beacon from being heard 13,945 km away.







    1. This is not Mastodon, this is Lemmy.
    2. There is no Server Selection Problem. You can pick a server at your leisure, or join the one your friend recommended.
    3. Automatic selection of a server is solving the problem as-if the main criteria is related to technology, rather than a human one.
    4. Any instance can talk to any other insurance as the communities in those instances interact.
    5. This all seems to approach social media on Mastodon as if it were equivalent to picking a local Reddit cache. That’s not what the fediverse is about, it’s about creating human communities.
    6. The aim of the fediverse is not to grow like traditional social media networks, it’s not about going viral or getting karma, it’s about connecting with other people.


  • In 1989 I was one of the participants in the (then) Guinness World Record Endurance Computing held at the Hobby Computer Club days (HCC dagen) in the Netherlands.

    The record was for 63.5 hours, but I had a two hour or so commute in each direction and the event started (from memory) at noon.

    I’m guessing that I was awake in total for about 70 hours. I fell asleep on the way home.

    We published a newsletter called “Elephant News” every few hours. Time keeping was managed by official time keepers and it was entered into the Guinness World Records in the 1990 book. I have a copy somewhere.

    At some point not long after, Guinness abolished all world records that only had a time component and as far as I know it still stands :)