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Steel tape counterpoise

Cortland Richmond
 

Julian,

It's OK to drill a hole in the steel tape, and attach a screw,
nut and star washer to make contact. It works, too.

Cortland

ka5s

------Original Message------

The idea of using a counterpoise made from a "roll-up" short
wave
antenna seems a good one. Unfortunately as so often I find
myself
cursing the fact that I do not live in the US because I have
no Radio Shack shops where I can obtain one. I have heard that
a lockable steel measuring tape can be used, with the added
benefit that it has built-in calibrations. However, all the
ones I have seen seem to be either plastic or painted metal so
there is no electrical contact with the tape itself.

Julian, G4ILO
[email protected]
 

Thanks. What happens with the coiled up part of the tape? Is it
effectively shorted out, or does it make a coil, like with the chalk
line solutions being discussed?

Julian, G4ILO

--- In FT817@y..., Cortland Richmond <ka5s@e...> wrote:

Julian,

It's OK to drill a hole in the steel tape, and attach a screw,
nut and star washer to make contact. It works, too.

Cortland

ka5s
Cortland
 

You will have already seen a message here that it simply acts as a bit
of end loading. Otherwise, no worries.

Really, one need not pick nits; whatever works, works! With a bit
larger nut and washer, you need not drill holes. You can connect to
the tape anywhere you want. A 75 foot (23 meter) tape measure could
be rolled out to 66 feet and the ground attached at the 33 foot (10
meter) point, for example, giving TWO radials.

Cortland


Corltand--- In FT817@e..., julian@t... wrote:

Thanks. What happens with the coiled up part of the tape? Is it
effectively shorted out, or does it make a coil, like with the chalk
line solutions being discussed?

Julian, G4ILO
Sharyl - W3VET
 

Really, one need not pick nits; whatever works, works! With a bit
larger nut and washer, you need not drill holes. You can connect to
the tape anywhere you want. A 75 foot (23 meter) tape measure could
be rolled out to 66 feet and the ground attached at the 33 foot (10
meter) point, for example, giving TWO radials.

Cortland
You're thinking out of the box
If you can find a combat engineers measuring tape they are made out of
stainless steel.
They also tell how much TNT is needed to dismantle various things such as
bridge overheads that might be in the way of your mobile antenna.

Sharyl
[email protected]
 

Hmm. Yaesu could have saved backpackers a bit of weight by building
in a device to activate detonators.

Julian, G4ILO

--- In FT817@y..., "Sharyl - W3VET" <w3vet@a...> wrote:

They also tell how much TNT is needed to dismantle various things
such as
bridge overheads that might be in the way of your mobile antenna.

Sharyl
Brian B. Riley, N1BQ
 

-----Original Message-----
From: Sharyl - W3VET [mailto:w3vet@...]
Sent: Wednesday, May 16, 2001 17:06 PM
To: FT817@...
Subject: Re: [FT817] Re: Steel tape counterpoise

Really, one need not pick nits; whatever works, works! With a bit
larger nut and washer, you need not drill holes. You can connect to
the tape anywhere you want. A 75 foot (23 meter) tape measure could
be rolled out to 66 feet and the ground attached at the 33 foot (10
meter) point, for example, giving TWO radials.

Cortland
You're thinking out of the box If you can find a combat engineers
measuring tape they are made out of stainless steel. They also tell
how much TNT is needed to dismantle various things such as
bridge overheads that might be in the way of your mobile antenna.
Yeah! Right! But you know damned well it almost always took twice as
much T as the FMs said it would take! Especially when dealing with the
hardwoods of a certain tropical wonderland ....

... and another thing ... I never could stand nuouc mam! Makes me want
to ralph just remembering it! Let's hear it for the "date pudding" or
"ham and muthers"

cheers ... bbr

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