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 2 years ago
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Cake day: March 4th, 2024

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  • According to this source: https://www.legislation.gov.au/F2021L00617/latest/text

    460 – 470
    FIXED
    MOBILE 286AA
    Meteorological–satellite (space-to-Earth)
    287 289 AUS98

    286AA The frequency band 450–470 MHz is identified for use by administrations wishing to implement International Mobile Telecommunications (IMT) — see Resolution 224 (Rev.WRC-19). This identification does not preclude the use of this frequency band by any application of the services to which it is allocated and does not establish priority in the Radio Regulations. (WRC-19)

    287 Use of the frequency bands 457.5125–457.5875 MHz and 467.5125–467.5875 MHz by the maritime mobile service is limited to on-board communication stations. The characteristics of the equipment and the channelling arrangement shall be in accordance with Recommendation ITU‑R M.1174‑4. The use of these frequency bands in territorial waters is subject to the national regulations of the administration concerned. (WRC-19)

    289 Earth exploration–satellite service applications, other than the meteorological–satellite service, may also be used in the bands 460–470 MHz and 1 690–1 710 MHz for space-to-Earth transmissions subject to not causing harmful interference to stations operating in accordance with the Table.

    AUS98 The harmonised frequency ranges in the 400 MHz band are used for national security, law enforcement, and first and second responder agencies. These agencies include police, fire, ambulance, and emergency rescue. These agencies are normally consulted about use of this spectrum for government purposes via the Commonwealth, State and Territory representative arrangements established by the National Coordinating Committee for Government Radiocommunications[1]. The harmonised band comprises the following frequency ranges:

    • 403–403.98125 MHz,
    • 405.01875–406 MHz,
    • 408.64375–410.54375 MHz,
    • 412.46875–413.43125 MHz,
    • 414.46875–415.44375 MHz,
    • 418.09375–430 MHz,
    • 457.50625–459.9875 MHz,
    • 467.50625–469.9875 MHz.






















  • Uhm … no.

    Linux had permissions from day one, neither Windows nor Apple did until much more recently.

    I use Apple, since there’s many versions of its OS and only¹ the one based on BSD has permissions.

    The entire Linux ecosystem is permissions based, it’s baked into the kernel and while bugs continue to be discovered and patched, they’re visible to everyone, where that’s not the case with either Windows nor Apple.

    Permissions aren’t new. Unix has had them from the early days, as have operating systems like VMS, BSD and OS/400 to name a few.

    As for exploits, the level of user social engineering exploits is exploding with the growth of Linux, since most new users come from operating systems with poor security.

    In my opinion Mac OS is hurting itself by making inexplicable security choices, causing pain where none is required, resulting in people actively disabling security to their own detriment.

    As for actual exploits, they’re getting more and more ubiquitous since more and more operating systems are running the same code, think python, nginx, bash, etc.

    Finally, I’d point out that your attempt at dispelling what you call a myth does not appear to be backed up by facts or sources.

    I’ve been in this industry for over 40 years and while it’s far from perfect, I am comfortable stating that Linux is more secure than many operating systems and I suspect that it will continue to be the case for the foreseeable future.

    I also note that it has a significantly larger user base than any other OS. Don’t believe me? Heard of Android, same Linux kernel.

    ¹ There was a brief A/UX hybrid OS that had permissions, based on Unix System V and BSD. It was discontinued in 1995.