(meteorobs) Frequencies no go.

[Bob Culbertson]

Your 25 foot dipole is resonate at f = 468 / length in feet or 18.72
MHZ near our 17 meter ham band . The third harmonic would be 56.16 MHZ ,
unless that is what you are going for.
L (length in feet) = 468 / F (frequency in Mhz) for a 6 meter beacon
usually below 50.1 Mhz in Canada as in USA the total length of the dipole
becomes 9.34 feet or 4.67 feet per leg. Thats quite a bit shorter. For SWR
purposes when transmitting I would need to use the 9.43 foot dipole. Which
I do use here but only 3 to 4 feet above the ground (less than 1/4 wave).
Under the dipole I have have a 1/2 wave ground plane of corrugated aluminum
held down with cement blocks.This gives me high angle radiation with about
6 db gain at a 60 degree elevation where most visual and radio meteors are
seen.
Does this work? Oh Yes I have had plenty of contacts (QSOs) with other hams
comparing 5 watts QRP with this system and a 5 element yagi at 15 feet
running 100 watts.
My interest is in meteor induced Sporadic E (Em) on all frequencies.
www.twitter.com/wa3ygq  for  meteor Em tweets or look me up on
www.QRZ.com<http://www.qrz.com/>
for an Em explanation.

Bob WA3YGQ Good Luck on 6 meters

On Wed, Sep 11, 2013 at 4:09 PM, Jodie Reynolds <spacerocks at spaceballoon.org
> wrote:

> Tune-up a couple six meter beacons.  If you hit the center of a
> couple beacons, then you're either all wrong exactly the same way -
> or the more likely answer:  your receiver's fine.  The six meter
> beacons are in 50-52.5 Mhz range, pretty close to your 55Mhz, close
> enough anyway.
>
> When I'm tuning-up the USB dongles, I use six meter beacons, 2 meter
> beacons, and air nav beacons.  If I average-out their correction I
> get to within a couple PPM across the entire band, even up into UHF
> satellite.   Temperature alone gives me more variation.
>
> --- Jodie
>
>
>
>
>
> Wednesday, September 11, 2013, 12:53:06 PM, you wrote:
>
> >>  However, if you are not hearing anything I would at least
> >> entertain the possibility that you are not tuned where you think you
> are.
> >> Paul
>
>
> >   Hmm.. if I see a frequency at 55.2590 then that is what I type in on
> the
> > pad and use CW mode.
>
> >   I know typing in 83.2400 is on as I hear meteors.
>
>
> > Clear skies
> > ----------
> > Michael Boschat
> > Halifax Center - Royal Astronomical Society of Canada
> > Astronomy page:  http://www.chebucto.ns.ca/~aa063
>
> > _______________________________________________
> > meteorobs mailing list
> > meteorobs at meteorobs.org
> > http://lists.meteorobs.org/mailman/listinfo/meteorobs
>
>
>
> --
> Best regards,
>  Jodie                            mailto:spacerocks at spaceballoon.org
>
> _______________________________________________
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> meteorobs at meteorobs.org
> http://lists.meteorobs.org/mailman/listinfo/meteorobs
>
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