4m Slim Jim Antenna
- This 4m Slim Jim Antenna is cheap and easy to build yet it greatly out performs the more usual dipole due to its low angle of radiation. An SWR of 1:1 is obtainable across the 4m ham radio FM band with a simple adjustment.
Vertical Antenna for 20 15 10 meters
- A small, multiband vertical which cover 20, 15, 10 meter amateur radio bands. This easy to build ham radio antenna could serve as an emergency or field day antenna.
NEQRP Noise Bridge
- A noise bridge is a device for measuring or comparing impedances on coaxial cables, antennas, components, etc.
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- Do you want to measure antenna impedance at resonance? With
this Antenna Scope, you have a simple RF Bridge for getting
started in an exciting part of Ham Radio, building your
own Antennas that work well