nuckolls.bob(at)aeroelect
Guest
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 Posted: Mon Jan 24, 2011 1:15 pm Post subject: "Emacs!" in Response: Was Comm Antenna & SWR Reading |
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At 01:30 PM 1/24/2011, you wrote:
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Bob,
Many thanks for your quick and detailed response. However, your
response had three "Emacs!" in it that appear to refer to graphics
that I can't view. I searched the AeroElectric lists archives and
the most detailed message re "Emacs!" was yours dated July 31,
2009. I couldn't find any other relevant messages on how to view
your graphics/photos.
I'm using a Macbook with OS 10.4.6 (Snow Leopard) that also has a
full install of Windows XP in it. I opened your reply in three
different browsers -- Safari, Firefox and Internet Explorer 8 but no joy.
Any thoughts on how I can retrieve/view your "Emacs!" graphical inserts?
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scroll down in the archival postings to see
if the images are down there.
I've revisited some references and filtered my
test values through the credibility filter.
The jury is still out. I'd forgotten that
the raw quarter-wave over a good ground plane
should have a resistive component on the order
of 37 ohms at resonance, not 12 ohms. I need
to resolve the discrepancy.
I think I mentioned in another post that the
CI-122 antenna is called out as anything from
1.5:1 (best match?) to 3:1 (not to exceed)
and some numbers in between depending on who's
advertisements you're reading.
I'm not finished unpacking my electro-whizzies
and don't know where my Model 43 meter is. I
seem to recall having a high sensitivity slug
for it that I could drive with a 100 mW unit
oscillator. It will be a couple of weeks
but I'm going to revisit the experiment. I'll
also conduct a calibration procedure on the
MFJ-259 to make sure it hasn't wandered off
into the weeds.
Another Lister cited a marked difference
bewteen on the ground and airborne SWR
readings on a belly mounted antenna. What
would be really cool is to see what your
antenna shows mounted to the center of a
sheet of aluminum on saw horses.
Bob . . .
Bob . . .
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