On 16 Nov, 18:08, "Hal Rosser" wrote:
I have made some different type of antennas and I want to be sure that
they don't melt.
This apparently is not unusual for DIY antennas. Seems like I remember
that you should use
two toroids for top band but I am not sure why. Don't usually use
bands other than

That's probably right since the freq is so low.

14M Hz up. Read today that a commercial transmission line that
radiates is now available ( see
Antenna magazine on line that came out today)Not sure where it is used
tho it would be usefull
for the new amateur antenna design which does not require a ground
plane.
Regards
Art

I don't get that magazine, but it sounds like a beverage antenna or some
sort of 'traveling-wave' antenna, but I thought they were for receive-only.

Testing that antennas "don't melt" sounds like you're putting us on, trying
to get a rise from the conservative hams who believe in not using any more
power than is needed for communication. Putting a kilowatt into a mobile
whip antenna may get you heard - but won't make you hear any better. You
could create a lot of QRM with a combo like that. Antennas are our ears to
the world.
Using a whip antenna on a kilowatt rig is analagous to putting on earplugs
and using a bullhorn to converse with someone sitting across the table at
Thanksgiving dinner - and interfering with everyone else's conversations.
But that's my opinion. You can test your antenna with an antenna analyzer
using milliwatts. Throw out those linears!

Reference to a mobile was to illustrate the size of the antenna only.
As you can imagine squashing a 160M antenna in such a small volume
does suggest difficulties !
Best regards
Art