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Isotron antenna for 80m band
For the 80 m band the coil is wound with black 1.5 mm installation wire of approximately 10 m length. The antenna resonates at 3,630 MHz with a bandwidth of + and - 22 kHz
post 28 Jan 2024
![Isotron antenna for 80m band](images/isotron-antenna-for-80m-band.jpg)
Antenna 80 meter Links →
Broadbanding half square antenna for 80mt
Half-square antenna is by naturerelatively narrow band.1On80 meters, for example, an SWR be-low 2:1 can be achieved anywhere in theband, but only over a relatively small range 60 to 100 kHz
Double bazooka/coaxial dipole antenna
A typical, dipole antenna has bandwidth of about 50 to 100 KHz
Hex Array 80/40 Meter Vertical
Homebrew 80/40 meter trap vertical. The trap is a coaxial cable trap, made from RG-213 cable
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Half-square antenna is by naturerelatively narrow band.1On80 meters, for example, an SWR be-low 2:1 can be achieved anywhere in theband, but only over a relatively small range 60 to 100 kHz
A typical, dipole antenna has bandwidth of about 50 to 100 KHz
Homebrew 80/40 meter trap vertical. The trap is a coaxial cable trap, made from RG-213 cable
![Linear-loaded-short-dipole-21mhz](/../antype/ch18/images/linear-loaded-short-dipole-21mhz.jpg)
Linear loaded short dipole 21Mhz For my amateur radio activities on the HF bands I only have a 3.6 m wide balcony available for antennas. After some study I decided to experiment with a shortened dipole for the 15 m band