Very interesting discussion. Can't we quantify our ground systems by placing
RF ammeters at the feed point?
No, we cannot obtain reliable useful information there. If we want to know
field strength change, we have to measure field strength change. :-)
It would seem to me that once the current
Tom W8JI w...@w8ji.com wrote:
Completely agree, but you didn't say how to get past the garden
committee. :) 73, Guy.
Thin wire or move.
When I was in a townhome in Tampa I was able to use what is called
paddle wire. This is 22 ga. steel wire painted in green enamel. It
is used in
Bill,
Since this is a temporary installation you do you get some thin insulated wire
and lay 30 to 60 radials on the ground.
You have to carry more wire but you won't have to worry about supporting
elevated radials.
I use 16 conductor surplus ribbon cable for this purpose.
Mike N2MS
-
Knowing where you are going would be a big help.
So would 70' palm trees over the ocean in KH8 land.
I think you may have to tailor your tenna to your terrain.
73
jim / W1FMR
--- On Thu, 8/2/12, mstang...@comcast.net mstang...@comcast.net wrote:
From: mstang...@comcast.net
On Lord Howe Island last summer, on 160M, we deployed a Spiderbeam 18M
fiberglass telescopic pole with a 1/4 wave wire taped to it.
The excess wire came off the top like an inverted L and was tied to a
convenient fence.
There were two sets of 4 light synthetic rope guys to ground stakes.
We had
On 7/30/2012 8:32 PM, bills stuff wrote:
The plan is to develop a simple, relatively inexpensive, relatively
light weight and shippable/airline transportable 160 antenna kit for one
man quick deployment for modest DXpeditions or contributed for use by
resident hams in rare-ish (for 160 m)
Does anyone know how I can periodically request the top band e-mails as opposed
to them appearing in my e-mail listings throughout the day?
Thanks,
Allan W2TN
___
UR RST IS ... ... ..9 QSB QSB - hw? BK
There are two options:
You can receive a digest of messages instead of an email for each one. To
do this - login with the information you just got a couple of days ago
(mailing list reminder) and change to digest mode.
The other option is to set no mail so you receive no messages and then
view
(1) 130 feet of 300 ohms twin lead with the far one end shorted and
pulled up over a coconut by a local climber $5 US max and connected to a
small nylon line for adjustment in an inverted or sloping fashion back
to my hotel room on the beach. (without the local climber bring along a
Agreed Tom. I just followed the conventional wisdom of the time and it
did seem easier to match than a single wire. At least it made me feel
that it did.
Herb, KV4FZ
On 8/2/2012 6:21 PM, Tom W8JI wrote:
(1) 130 feet of 300 ohms twin lead with the far one end shorted and
pulled up
Yes, he did. I remember the article from a long time ago. The theme of the
article was how you could improve efficiency by folding the element. It
raised the feed impedance and therefore reduced losses. I do not have the
article at hand but I do remember it. If it was a QST article then it
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