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  • Big fat retarded Mikey

    From Jim GM4DHJ ...@21:1/5 to All on Fri Mar 10 14:19:53 2023
    https://www.youtube.com/watch?v=JwTQXh0BZ5o&t=41s

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  • From brian@21:1/5 to [email protected] on Fri Mar 10 18:53:29 2023
    In message <tufea9$20dpe$[email protected]>, Jim GM4DHJ ... <[email protected]> writes >https://www.youtube.com/watch?v=JwTQXh0BZ5o&t=41s

    The video is running like an arthritic snail on a zimmer. Is that a big
    wheel antenna he's testing ? What are his conclusions ?

    Brian GM4DIJ
    --
    Brian Howie

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  • From jim.gm4dhj@21:1/5 to brian on Fri Mar 10 19:21:57 2023
    On 10/03/2023 18:53, brian wrote:
    In message <tufea9$20dpe$[email protected]>, Jim GM4DHJ ... <[email protected]> writes
    https://www.youtube.com/watch?v=JwTQXh0BZ5o&t=41s

    The  video is running like an arthritic snail on a zimmer. Is that a big wheel antenna  he's testing ? What are his conclusions ?

    Brian GM4DIJ
    ask me not him he has is mounted verical what a diddy


    https://www.youtube.com/watch?v=uY4Rd2YDz0Y

    https://www.youtube.com/watch?v=jlkUEAwGW9g&t=105s

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  • From brian@21:1/5 to [email protected] on Sat Mar 11 13:27:29 2023
    In message <tug00k$238hd$[email protected]>, jim.gm4dhj <[email protected]> writes
    On 10/03/2023 18:53, brian wrote:
    In message <tufea9$20dpe$[email protected]>, Jim GM4DHJ ... >><[email protected]> writes
    https://www.youtube.com/watch?v=JwTQXh0BZ5o&t=41s
    The� video is running like an arthritic snail on a zimmer. Is that a
    big wheel antenna� he's testing ? What are his conclusions ?
    Brian GM4DIJ
    ask me not him he has is mounted verical what a diddy


    https://www.youtube.com/watch?v=uY4Rd2YDz0Y

    https://www.youtube.com/watch?v=jlkUEAwGW9g&t=105s

    It will work vertically and will still be omnidirectional . In terms of performance however they only have a fraction of a dB over a smaller
    and cheaper halo.

    Brian GM4DIJ
    --
    Brian Howie

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Jim GM4DHJ ...@21:1/5 to brian on Sat Mar 11 15:22:57 2023
    On 3/11/2023 1:27 PM, brian wrote:
    In message <tug00k$238hd$[email protected]>, jim.gm4dhj <[email protected]> writes
    On 10/03/2023 18:53, brian wrote:
    In message <tufea9$20dpe$[email protected]>, Jim GM4DHJ ...
    <[email protected]> writes
    https://www.youtube.com/watch?v=JwTQXh0BZ5o&t=41s
     The  video is running like an arthritic snail on a zimmer. Is that a
    big wheel antenna  he's testing ? What are his conclusions ?
     Brian GM4DIJ
    ask me not him he has is mounted verical what a diddy


    https://www.youtube.com/watch?v=uY4Rd2YDz0Y

    https://www.youtube.com/watch?v=jlkUEAwGW9g&t=105s

    It will work vertically and will still be omnidirectional . In terms of performance however  they only have a  fraction of a dB over a smaller
    and cheaper halo.

    Brian GM4DIJ
    how can it ... you are firing from three separate elements.so one will
    be firing up one sideways and one down....

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From brian@21:1/5 to [email protected] on Sat Mar 11 16:51:13 2023
    In message <tui6ci$2id5d$[email protected]>, Jim GM4DHJ ... <[email protected]> writes
    On 3/11/2023 1:27 PM, brian wrote:
    In message <tug00k$238hd$[email protected]>, jim.gm4dhj >><[email protected]> writes
    On 10/03/2023 18:53, brian wrote:
    In message <tufea9$20dpe$[email protected]>, Jim GM4DHJ ... >>>><[email protected]> writes
    https://www.youtube.com/watch?v=JwTQXh0BZ5o&t=41s
    �The� video is running like an arthritic snail on a zimmer. Is that >>>>big wheel antenna� he's testing ? What are his conclusions ?
    �Brian GM4DIJ
    ask me not him he has is mounted verical what a diddy


    https://www.youtube.com/watch?v=uY4Rd2YDz0Y

    https://www.youtube.com/watch?v=jlkUEAwGW9g&t=105s
    It will work vertically and will still be omnidirectional . In terms
    of performance however� they only have a� fraction of a dB over a
    smaller and cheaper halo.
    Brian GM4DIJ
    how can it ... you are firing from three separate elements.so one will
    be firing up one sideways and one down....

    I think you're right. There's a bit of cancellation between the 3 bits
    A horizontal big wheel has a deep null up and down in free space . A
    halo has a much less deep null. So if you turn both through 90 degrees,
    the null is horizontal - not so bad with the halo, so both are not omnidirectional,with the halo winning . A further complication is the
    height above ground . If you are unlucky most of the radiation goes
    "up".

    I don't think big wheels are meant to be used vertically.

    What was he trying to do ? . I'll need to try the videos on another
    browser. I'll mess around with the big wheel model,

    Brian GM4DIJ
    --
    Brian Howie

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From brian h@21:1/5 to brian on Sat Mar 11 09:23:40 2023
    On Saturday, 11 March 2023 at 16:51:20 UTC, brian wrote:
    In message <tui6ci$2id5d$[email protected]>, Jim GM4DHJ ... <[email protected]> writes
    On 3/11/2023 1:27 PM, brian wrote:
    In message <tug00k$238hd$[email protected]>, jim.gm4dhj >><[email protected]> writes
    On 10/03/2023 18:53, brian wrote:
    In message <tufea9$20dpe$[email protected]>, Jim GM4DHJ ... >>>><[email protected]> writes
    https://www.youtube.com/watch?v=JwTQXh0BZ5o&t=41s
    The video is running like an arthritic snail on a zimmer. Is that >>>>big wheel antenna he's testing ? What are his conclusions ?
    Brian GM4DIJ
    ask me not him he has is mounted verical what a diddy


    https://www.youtube.com/watch?v=uY4Rd2YDz0Y

    https://www.youtube.com/watch?v=jlkUEAwGW9g&t=105s
    It will work vertically and will still be omnidirectional . In terms
    of performance however they only have a fraction of a dB over a
    smaller and cheaper halo.
    Brian GM4DIJ
    how can it ... you are firing from three separate elements.so one will
    be firing up one sideways and one down....
    I think you're right. There's a bit of cancellation between the 3 bits
    A horizontal big wheel has a deep null up and down in free space . A
    halo has a much less deep null. So if you turn both through 90 degrees,
    the null is horizontal - not so bad with the halo, so both are not omnidirectional,with the halo winning . A further complication is the
    height above ground . If you are unlucky most of the radiation goes
    "up".

    I don't think big wheels are meant to be used vertically.

    What was he trying to do ? . I'll need to try the videos on another
    browser. I'll mess around with the big wheel model,
    Brian GM4DIJ
    --
    Brian Howie

    I got the videos to run. The first one was doubly slow.
    This is G3CWI , an erstwhile user of ukra, testing one. I can't get 3dB gain out of any of the models unless wimo are using the ground gain trick

    https://www.youtube.com/watch?v=t61vw-K8zhc

    Brian

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Ian Jackson@21:1/5 to brian h on Sat Mar 11 19:57:48 2023
    In message <[email protected]>,
    brian h <[email protected]> writes
    On Saturday, 11 March 2023 at 16:51:20 UTC, brian wrote:
    In message <tui6ci$2id5d$[email protected]>, Jim GM4DHJ ...
    <[email protected]> writes
    On 3/11/2023 1:27 PM, brian wrote:
    In message <tug00k$238hd$[email protected]>, jim.gm4dhj
    <[email protected]> writes
    On 10/03/2023 18:53, brian wrote:
    In message <tufea9$20dpe$[email protected]>, Jim GM4DHJ ...
    <[email protected]> writes
    https://www.youtube.com/watch?v=JwTQXh0BZ5o&t=41s
    The video is running like an arthritic snail on a zimmer. Is that
    big wheel antenna he's testing ? What are his conclusions ?
    Brian GM4DIJ
    ask me not him he has is mounted verical what a diddy


    https://www.youtube.com/watch?v=uY4Rd2YDz0Y

    https://www.youtube.com/watch?v=jlkUEAwGW9g&t=105s
    It will work vertically and will still be omnidirectional . In terms
    of performance however they only have a fraction of a dB over a
    smaller and cheaper halo.
    Brian GM4DIJ
    how can it ... you are firing from three separate elements.so one will
    be firing up one sideways and one down....
    I think you're right. There's a bit of cancellation between the 3 bits
    A horizontal big wheel has a deep null up and down in free space . A
    halo has a much less deep null. So if you turn both through 90 degrees,
    the null is horizontal - not so bad with the halo, so both are not
    omnidirectional,with the halo winning . A further complication is the
    height above ground . If you are unlucky most of the radiation goes
    "up".

    I don't think big wheels are meant to be used vertically.

    What was he trying to do ? . I'll need to try the videos on another
    browser. I'll mess around with the big wheel model,
    Brian GM4DIJ
    --
    Brian Howie

    I got the videos to run. The first one was doubly slow.
    This is G3CWI , an erstwhile user of ukra, testing one. I can't get 3dB
    gain out of any of the models unless wimo are using the ground gain
    trick

    https://www.youtube.com/watch?v=t61vw-K8zhc

    IIRC, a 'simple' horizontal halo spews RF (with some degree of equality)
    in all directions - not just horizontally (which is usually what you
    want), but also up and down. Some time ago, someone sent me an RF field diagram, but I can't find it at short notice.
    --
    Ian
    Aims and ambitions are neither attainments nor achievements

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From brian@21:1/5 to [email protected] on Sun Mar 12 09:05:40 2023
    In message <[email protected]>, Ian Jackson <[email protected]> writes
    In message <[email protected]>,
    brian h <[email protected]> writes
    On Saturday, 11 March 2023 at 16:51:20 UTC, brian wrote:
    In message <tui6ci$2id5d$[email protected]>, Jim GM4DHJ ...
    <[email protected]> writes
    On 3/11/2023 1:27 PM, brian wrote:
    In message <tug00k$238hd$[email protected]>, jim.gm4dhj
    <[email protected]> writes
    On 10/03/2023 18:53, brian wrote:
    In message <tufea9$20dpe$[email protected]>, Jim GM4DHJ ...
    <[email protected]> writes
    https://www.youtube.com/watch?v=JwTQXh0BZ5o&t=41s
    The video is running like an arthritic snail on a zimmer. Is that >>> >>>>big wheel antenna he's testing ? What are his conclusions ?
    Brian GM4DIJ
    ask me not him he has is mounted verical what a diddy


    https://www.youtube.com/watch?v=uY4Rd2YDz0Y

    https://www.youtube.com/watch?v=jlkUEAwGW9g&t=105s
    It will work vertically and will still be omnidirectional . In terms
    of performance however they only have a fraction of a dB over a
    smaller and cheaper halo.
    Brian GM4DIJ
    how can it ... you are firing from three separate elements.so one will
    be firing up one sideways and one down....
    I think you're right. There's a bit of cancellation between the 3 bits
    A horizontal big wheel has a deep null up and down in free space . A
    halo has a much less deep null. So if you turn both through 90 degrees,
    the null is horizontal - not so bad with the halo, so both are not
    omnidirectional,with the halo winning . A further complication is the
    height above ground . If you are unlucky most of the radiation goes
    "up".

    I don't think big wheels are meant to be used vertically.

    What was he trying to do ? . I'll need to try the videos on another
    browser. I'll mess around with the big wheel model,
    Brian GM4DIJ
    --
    Brian Howie

    I got the videos to run. The first one was doubly slow.
    This is G3CWI , an erstwhile user of ukra, testing one. I can't get
    3dB gain out of any of the models unless wimo are using the ground
    gain trick

    https://www.youtube.com/watch?v=t61vw-K8zhc

    IIRC, a 'simple' horizontal halo spews RF (with some degree of
    equality) in all directions - not just horizontally (which is usually
    what you want), but also up and down. Some time ago, someone sent me an
    RF field diagram, but I can't find it at short notice.

    Here's what I get.
    Http://www.b-howie.co.uk/bigwheel.png
    http://www.b-howie.co.uk/halo.png

    The big wheel is more omnidirectional than the halo. I've seen places
    where the halo is vertical and more uniform, but there's more up an
    down as you say and less to the side.

    I still can't get 3dB over a dipole for a big wheel unless I add in
    ground gain, but then the dipole also has ground gain

    http://www.b-howie.co.uk/bigwheel_5m_agl.png http://www.b-howie.co.uk/halo_5m_agl.png

    I'd been looking at using a bigwheel on 6m at home, attracted by the
    claimed 3dbD gain , but ended up using a delta loop for the few times I
    use the band.

    Brian GM4DIJ

    --
    Brian Howie

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)