The A99/IMAX are both WIRE Antennas...they are just sealed in Fiberglass due to construction materials mandated by the government to keep installers/users from killing themselves via electrocution from coming in contact with electric lines.
Nothing more than $15 of wire and a simple LC matching network to make them 50 Ohms at feedpoint.
The ridiculous gain numbers some use to sell they're product are the true lies. Take a Quarter wave vertical ground plane and all the others side by side at the exact height, same coax, same radio output...99% of the time No difference in signal or performance.
Most of my antennas are all Homebrew wire designs for HF usage. None cost me more than $150 because, I use top quality insulators,feedline and support ropes.
I work the world! I work stations many times other op's on frequency can't hear as well as I do and my highest wire antenna is about 45ft above ground.
It's not Rocket science, it just takes EFFORT to build and install a good set-up to work with.
All the Best
Gary
Nothing more than $15 of wire and a simple LC matching network to make them 50 Ohms at feedpoint.
The ridiculous gain numbers some use to sell they're product are the true lies. Take a Quarter wave vertical ground plane and all the others side by side at the exact height, same coax, same radio output...99% of the time No difference in signal or performance.
Most of my antennas are all Homebrew wire designs for HF usage. None cost me more than $150 because, I use top quality insulators,feedline and support ropes.
I work the world! I work stations many times other op's on frequency can't hear as well as I do and my highest wire antenna is about 45ft above ground.
It's not Rocket science, it just takes EFFORT to build and install a good set-up to work with.
All the Best
Gary
I've learned a lot in the short years being a member here & a lot came from their input . 50 years on the radio & still learning !
