Cb Antenna Attic Ground Plane Radials
A ground plane for a cb radio antenna is the metal surface needed below the antenna.
Cb antenna attic ground plane radials. Possibly the radials have been removed or the antenna has been otherwise modified. 4 3 out of 5 stars 14. Any ground plane should have 1 4 wave 108 radials for the most effective ground plane. The cb base station antenna stands about 10ft.
The metal surface enables the signal generated when transmitting to reflect off the surface and travel into the atmosphere. It is also possible to shorten them with marginal impact on the performance especially if they are loaded to keep their electrical length. The radiating element is a quarter wave λ 4 and the radials are 12 longer. Tall when you finally install it which is high enough to capture more reliable signals.
It is not always necessary to have a minimum of four radials often even two will suffice. Cb wilson firestik francis astatic cb radio antenna ground plane 3 8 x 24 black tip mirror trucker. Thus my questions in the comment above. That consists of a single vertical 108 radiator section and 3 or 4 108 radials drooped at a 45 degree angle to provide the proper 50 ohm feedpoint impedance.
λ 4 and 5 8λ and questions like this often don t tell what s needed to answer the question. This calculator can be used to design a quarter wave ground plane antenna with radials. Sirio doesn t cut corners when it comes to the quality of their products. In mobile applications the vehicle body frame acts as the ground plane reflective unit.
In mobile applications the vehicle body acts as the ground plane reflective unit. The most common ground plane antenna to build is a simple 1 4 wave. Nagoya gpk 01 21 radials nmo mount ground plane kit for base or. The metal surface enables the signal generated when transmitting to reflect off the surface and travel into the atmosphere.
Endgroup mike waters jul 9 17 at 1 04. Vertical antenna with ground plane radials. There are usually four radials three being a minimum but you could use up to six. A common misconception is elevated radials as counterpoise perform the role of ground plane in an antenna system including dominating the far field effects from real ground over which the antenna resides.
Pro trucker white wilson firestik francis astatic cb radio antenna ground plane 3 8 x 24 mirror trucker by wilson. Ahh the good old quarter wave ground plane.