helmsman wrote:
Check the link below.
http://www.phoenixwirecloth.com/

That is quite extensive. Here's more what I
had in mind:

http://www.twpinc.com/twp/jsp/product.jsp?type=4

http://www.marcospecialtysteel.com/hardwarecloth.htm
--
73, Cecil http://www.w5dxp.com

Cecil Moore wrote:
helmsman wrote:
Check the link below.
http://www.phoenixwirecloth.com/

That is quite extensive. Here's more what I
had in mind:

http://www.twpinc.com/twp/jsp/product.jsp?type=4

http://www.marcospecialtysteel.com/hardwarecloth.htm

There is also expanded aluminum mesh (don't know if you already gave a
url with it.) A friend gave me a load of this stuff, he works in
demolition of buildings. The stuff was used in stuccoing buildings.
All I had to do was go to his yard and persuade the mesh out of the
stucco with a hammer.

Problems I ran into was soldering it together, soldering aluminum takes
quite a bit more skill than copper!!!

Regards,
JS

John Smith I wrote:
Problems I ran into was soldering it together, soldering aluminum takes
quite a bit more skill than copper!!!

For some reason, the standard galvanized-dipped
stuff is easy to solder.
--
73, Cecil http://www.w5dxp.com

In article ,
Cecil Moore wrote:

John Smith I wrote:
Problems I ran into was soldering it together, soldering aluminum takes
quite a bit more skill than copper!!!

For some reason, the standard galvanized-dipped
stuff is easy to solder.

good idea technically speaking but i don't think i'll be able to hide
anyof this stuff in his apartment

if i go verticle i'd hope maybe to hide 2 counterpoise"" like wires
around the far walls but certainly not mesh

the only way i could think of using mesh is around the railing of the
terrace hanging it verticle and putting the verticle antenna part
ontop(higher)
the railing is concreate

good idea technically speaking but i don't think i'll be able to hide
anyof this stuff in his apartment

if i go verticle i'd hope maybe to hide 2 counterpoise"" like wires
around the far walls but certainly not mesh

the only way i could think of using mesh is around the railing of the
terrace hanging it verticle and putting the verticle antenna part
ontop(higher)
the railing is concreate
Indoor/outdoor carpet over the mesh would be OK.

I get a little worried about more than a couple of watts around areas
with people.

The new TenTec rig that is built to remote over a Lan/internet will
add more options soon.
John Ferrell W8CCW

John Ferrell wrote in
:

I get a little worried about more than a couple of watts around areas
with people.

Ah, this must be in the vein of "they have been unable to prove EMR
safe".

There are clear guidelines / rules on maximum permitted exposure to EMR
that should allow design and operation of a station with confidence that
it most unlikely to be an EMR hazard to one's self, family or the general
public. Understanding and applying this is just another facet of the
hobby today, though I concede it is beyond our new 6 hour hams (though
that is part of the reason for their low power limit, should they observe
it).

One of my current projects is a self contained field strength meter for
field measurement near a transmitting antenna. It consists of a small
single turn untuned square loop, terminated in a known load, a detector
and an inexpensive battery power LCD panel meter, all self contained
mounted on a non-conductive stick with no trailing wires. It is fairly
straight forward to produce an Antenna Factor / Freq chart using NEC, and
a detector calibration (Vout/Pin). Trials have been encouraging with good
correlation with expected field strength.

On the other hand, it has been demonstrated that UV radiation is a health
hazard, and there is no "safe" exposure level (ie a threshold below which
no changes will take place in living cells). If one took a balanced
approach, before becoming too concerned about EMR MPE, one would protect
one's self from ANY sunshine, direct or indirect.

If it appears that ham's brains have been addled by RF, they were
probably that way before exposure to EMR, it might just be a factor for
selection of hams. (You don't have to be mad to be a ham, but it helps!)

Owen

On Mon, 08 Jan 2007 21:34:51 GMT, Owen Duffy wrote:

John Ferrell wrote in
:

I get a little worried about more than a couple of watts around areas
with people.


On the other hand, it has been demonstrated that UV radiation is a health
hazard, and there is no "safe" exposure level (ie a threshold below which
no changes will take place in living cells). If one took a balanced
approach, before becoming too concerned about EMR MPE, one would protect
one's self from ANY sunshine, direct or indirect.
I am there too. The effects seem to be accumulative to some of us...


If it appears that ham's brains have been addled by RF, they were
probably that way before exposure to EMR, it might just be a factor for
selection of hams. (You don't have to be mad to be a ham, but it helps!)

Owen

I managed to get an RF burn from a 25 watt nav transmitter once and it
hurt! It was slw to heal as well.

My problem is that I really don't know, I have yet to do that
homework.

I have a similar problem of my own in the near future. I have a 24
foot Winniebago RV that is at least skinned with fiber glass. I would
like to try HF mobile Lots of homework ahead...
John Ferrell W8CCW