Michael 345's career in "radio"

Discussion in 'About the Members' started by Michael 345, Mar 4, 2017.

  1. Michael 345 Valued Senior Member

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    3,504
    He has been quiet for some time now

    I'll check on him soon

    Just FYI only for you

    I joined the Royal Australian Air Force for 6 years under 1 mustering

    It was the RAAF policy back then to try to resign personnel when they had about 2 years left of service

    When they ask me I declined having become bored

    They then offered me a change of mustering to Radio Technician which I had wanted when I originally joined

    Sent to Laverton RAAF base I spent 18 months in classrooms (12 months qualified you as Radio Mechanic and a further 6 months upped you to Radio Technician)

    The Radio section had 2 main groups Ground and Air. I was Ground

    I spent 4 years in in that position before being so bored I left early and that's another story

    Anyway I still remember much about subjects that came up during training and I think your explanations are spot on

    In a class of 10 with each student at a desk you could teach both the Student and the Desk

    Your current task, which you have appeared to have taken, I am not sure about

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    Last edited by a moderator: Mar 4, 2017
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  3. Q-reeus Valued Senior Member

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    Trust me on this one - not a word will be leaked to anyone else

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    . In keeping with the impeccable privacy policy re PM's 'conversations' here at SF. Interesting that - what's in a name change, huh? Doubtless just a fashion update. But I digress.
    A very nice memoir shared there. Thanks. My father joined-up underage back in the middle of WWII and trained initially in Airspeed Oxford's - at Point Cook just down the road from Laverton. Then got stationed to Townsville (or was it Charters Towers - or both?) flying as aircrew in Beaufort bombers iirc. Among other things. Dreamed of being a Spitfire pilot. Luckily or unluckily the Japs surrendered before he could see action in the Pacific. No sparky training afaik though.
     
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  5. Michael 345 Valued Senior Member

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    Small world

    Think your dad lucky to have survived with the Bombers and double lucky to have missed out on becoming a Spitfire pilot

    My basic training wss at Wagga Wagga

    Then Point Cook which was the training base for Medics

    Then Laverton hospital posting

    Williamtown just outside Newcastle and you know the rest

    My total service was 10 years and 234 days and discharged ' ON REQUEST '

    Mine in case you think otherwise

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    Cheers

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  7. Q-reeus Valued Senior Member

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  8. Michael 345 Valued Senior Member

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    I don't have problem with it

    Way off topic and I only posted it not really exclusive

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    for you but as an indicator to others I have some radio background

    Cheers

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  9. Q-reeus Valued Senior Member

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    True, and true. And to think that post got to me via a mix of near-infrared ('optical' fibre) and ~ GHz radio waves (WiFi/cellular). With maybe good old-fashioned 'copper' thrown in for good measure.

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  10. exchemist Valued Senior Member

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    Then you should be one of the ones who instinctively understands the Uncertainty Principle, according to my old tutor in physical chemistry, who was an amateur radio buff in his youth. (I was not - he had to teach me about wave superposition, bandwidth etc.)
     
  11. Michael 345 Valued Senior Member

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    Truth is I didn't but do now

    One subject come up with a lunch break chat with one of the Flight Lieutenants was the Radar Wave front traveling faster than light

    But I can't remember the details

    Something about the ' wave ' (the peaks and troughs) having to travel further than the front

    When I get time I'll throw in a war story practical joke newbies went through at one of the Radar units

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  12. exchemist Valued Senior Member

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    That sounds like the distinction between phase velocity, group velocity and front velocity. I recall this vaguely, as it comes into explanation of the apparent reduction in the "speed" of light, in a medium that is optically denser than free space, and the related QM description of refractive index. But if you ask me details I'll need to look them up. 1974, when I learned this stuff, is a long time ago now......
     
  13. Q-reeus Valued Senior Member

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    Not quite - actually optically less dense than vacuum. A diffuse ionized plasma e.g. Heaviside layer: https://en.wikipedia.org/wiki/Kennelly–Heaviside_layer
    In that instance there is total internal reflection for glancing radio waves within a certain frequency band. At higher frequencies, propagation with attenuation is typical:
    https://en.wikipedia.org/wiki/Radio_propagation#Ionospheric_modes_.28skywave.29
    https://en.wikipedia.org/wiki/Earth–ionosphere_waveguide
     

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