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

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Joined 1 year ago
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Cake day: March 4th, 2024

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  • LOS ANGELES (AP) — The Los Angeles County Sheriff’s Department said this week it will retest 4,000 DNA samples and open an internal investigation after learning that it used potentially flawed test kits for eight months.

    Sheriff’s officials said Wednesday that a test kit manufacturer sent a letter in August warning the department to stop using certain kits that were prone to giving incomplete results. However, the letter was received by a civilian employee who didn’t discard the kits or send them back, according to a department statement.

    The department used the flawed kits from July through February, testing thousands of samples from criminal investigations.

    The problem was discovered Monday when a supervisor at the department’s Scientific Services Bureau found the manufacturer’s letter.

    The department said it has opened an internal investigation to assess how much the faulty kits have affected criminal cases, and will retest some 4,000 DNA samples.

    “We take the integrity of our criminal investigations and the reliability of our forensic testing very seriously,” Sheriff Robert Luna said in a statement. “The Sheriff’s Department is working diligently to assess the impact and to prevent such situations from occurring again.” Los Angeles County District Attorney Nathan Hochman said his office had begun working with the sheriff’s department to determine the extent of the problem. Sheriff’s officials said the bad tests might have led to incomplete results, but they are "not likely to have falsely identified any individual.”

    The department declined to name the manufacturer.



  • Phone specific issues aside, which might well be the root cause, your pager issues might point at an issue that may be exacerbating your experience.

    If there’s wideband RF noise around you, many radio services might be affected.

    If you have a portable AM transistor radio handy, you can turn it on, tune away from any station and walk around your property. If the noise increases, try to find where it’s coming from. There’s also https://qrm.guru/ - it’s intended for radio amateurs, but we’re a friendly (mostly harmless) lot.

    As a volunteer firefighter, you might also have amateurs among you or known to members of your group, who might have local knowledge that I lack.

    Happy to exchange email. Not sure what the community rules are about sharing it here. I’m happy to send it via DM, it’s not a secret.


  • What network connection are you using to get these notifications?

    If it’s a telco, they might have modified their network and your coverage might have changed.

    If it’s WiFi, your router or an antenna might have come loose, or a neighbour has updated their WiFi network and is drowning out yours

    Have you purchased and installed new equipment? It might be causing interference. An old piece of gear, a power supply, inverter, solar panel, could suddenly generate radio noise and stop things from working too.

    You might think of wireless communication as unchanging, but it’s constantly updating and reacting to local conditions which in turn can vary from second to second.

    Source: I’m a licensed radio amateur