Welcome to our site!

Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Antenna

rjenkinsgb

Well-Known Member
Most Helpful Member
One wavelength is 300,000,000 (speed of light in metres/sec) / frequency in Hz.
Or for convenience use (300 / frequency in megahertz),

300 / 36 = 8.333 Metres wavelength.

How that applies to an antenna depends on the antenna type:

A quarter wave ground plane would be approx. 219cm; a quarter of the wavelength, * 0.95 "end correction", allowing for the lowering in frequency caused by the antennas own capacitance.

The-geometrical-specifics-of-quarter-wave-monopole-antenna.png
 
Got is Monopole is 12 inches I used a clip lead, I think it is working changed to 32 MC as it is slightly longer running 102.1 Aberdeen W.A. through an old EICO 324 . I hope the FCC does not send me a nasty letter !
 

Attachments

  • EICO_324.jpg
    EICO_324.jpg
    141.5 KB · Views: 13

unclejed613

Well-Known Member
Most Helpful Member

Latest threads

Top