Category: Technology

  • False alarm leads to real problem (AIS, antennas)

    False alarm leads to real problem (AIS, antennas)

    In a previous post, I noted how the AIS sentences had caused me to think that the VSWR alarm was being triggered, but in fact they were inactive alarms. However, I decided to get a baseline SWR reading, and a fellow club member was able to meet me on board today to conduct some tests.…

  • AIS alarm sentences redux

    AIS alarm sentences redux

    Back in 2020, I posted about the alarm sentences for the B600s AIS transceiver by Alltek Marine. While on the boat this weekend, I was monitoring the NMEA sentences while testing some new software, and I noticed that the sentences were still showing up, and the AMEC app on the tablet was also saying “Error”.…

  • Network-enabling a Panasonic SA-PM31

    Network-enabling a Panasonic SA-PM31

    I have a not-quite-vintage SA-PM31 radio/CD player/cassette player – it’s a mini HiFi type arrangement, and I bought it in the early 2000’s; my grandparents were visiting, and memory says that Grandad offered to buy me a radio as a present (potentially related to my first paying job after college, but my memory is really…

  • UniFi breaks my WiFi

    UniFi breaks my WiFi

    Ubiquiti has been in the tech news recently, and not for good reasons. That, however, is not what this post is about. I occasionally deign to log in to my local UniFi controller that’s running on the same Pi that runs my Pi-Hole installation. Did so two days ago, and there was a firmware update…

  • OpenSSH, Google Authenticator PAM module

    OpenSSH, Google Authenticator PAM module

    I’ve been using the pam_duo module as 2FA for my SSH logins for probably 3+ years, but decided I want to try out simple TOTP-driven 2FA for my server. A quick skim of various guides on the ‘net, and it comes down to a few config changes. First, install the PAM module google_authenticator – libpam-google-authenticator…

  • Using a D750 as a webcam over USB

    As I contemplate switching to full time work-from-home (after the pandemic, since my employer is now open to the idea), I’ve been looking at my current video conferencing setup – a Logitech C920 and a HyperX Cloud II headset – and wondering whether I can do something better without spending a lot of money. I’ve…