THHN insulation is not rated to stand up to UV radiation. After about a
year the outer clear nylon coating will separate and start falling off.
It's will not change how well the antenna works but it looks real bad as
the layer falls off.
If you can get it, THW will hold up a lot better.

GB

RHF wrote:

For One and All,
.
If you are considering using THHN Insulated Stranded Copper
Wire from the Hardware Store for Wire Antenna Elements for
Shortwave Listening (SWL) Antennas.
http://groups.yahoo.com/group/Shortw...a/message/5620
.
The Size # 14 AWG that is made up of 19 Strands of Wire
works well and can be bought in 500 Foot Rolls.
http://www.qcsupply.com/Products/863.aspx
http://sunwize.com/catalog/images/elect_wire_cable.pdf
.
One 500 Foot Roll of #14 AWG THHN Stranded Copper Wire
weighs about 20 Pounds can make several Antennas.
http://www.wiringproducts.com/?target=dept_198.html
A 100 Foot Long Wire Antenna Element would Weigh about 4 Pounds.
A 150 Foot Long Wire Antenna Element would Weigh about 6 Pounds.
.
Made of a Poly Vinyl Chloride (PVC) covered Annealed (Hardened)
Copper Wire made-up of 19 Strands and protected with an extra
Nylon sheath jacket.
(19 Strands = 1 Center + 6 Core + 12 Outer Twisted)
http://www.acewirecable.com/pdfs/2020.pdf
Note - The Nylon jacket is designed to withstand heat
temperatures of 90*C at 600V. The Stranded Sizes have a
105*C rating for Appliance Wiring use.
.
.
FLEX-WEAVE ANTENNA WIRE :
Then there is the "Cadillac of Aerial Wire"
that is called 'FLEX-WEAVE'.
http://www.davisrf.com/ham1/flexweve.htm
FLEX-WEAVE comes in #14 (168 Strands of #36 Copper Wire)
http://www.davisrf.com/ham1/flexweve.htm
Highly UV Resistant PVC Jackets (Insulatated Covering)
of Clear, Black, and Camouflage Green.
http://www.davisrf.com/ham1/flexweve.htm
.
.
iane ~ RHF
.
All are WELCOME and "Invited to Join" the
Shortwave Listener (SWL) Antenna eGroup on YAHOO !
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
SWL ANTENNAS GROUP = http://tinyurl.com/an6tw
.
Some Say: On A Clear Day You Can See Forever.
http://groups.yahoo.com/group/Shortw...na/message/502
.
I BELIEVE: On A Clear Night . . .
You Can Hear Forever and Beyond, The BEYOND !
With a Shortwave Listener SWL Antenna of your own making.
"If You Build It {SWL Antenna} You Will Hear Them !"
.
.
. .


--
"There's no way to rule innocent men. The only power any government
has is the power to crack down on criminals. Well, when there aren't
enough criminals, one makes them. One declares so many things to be a
crime that it becomes impossible to live without breaking laws."

-- Ayn Rand, Atlas Shrugged