Step 1 theory.....will be tested in a near future !
3 Elements bidirectional Inverted Vee @ 20 meters band
This antenna was previously tested as relays East / West pattern switch but it is very difficult to operate it during contest and one can loose points and multipliers due to high front to back ratio, so a bidirectional yagi like is needed.
Project progress
Mmana Gal design -done
Pros
- 9.9 dBi at 22 degrees take off angle
- 0.5 dBi at 5 degrees take off angle
- 10.5 meters height above the ground
- Simple wood poles and electric insulated wires
Cons
- It is not an Yagi
- Medium to complex Balun construction 17-20 ohms to 50 ohms impedance
- Requires portable VNA to avoid long coax wrong measuring