In mobile applications the vehicle body frame acts as the ground plane reflective unit.
Cb antenna attic ground plane radials.
Sirio doesn t cut corners when it comes to the quality of their products.
Cb wilson firestik francis astatic cb radio antenna ground plane 3 8 x 24 black tip mirror trucker.
Any ground plane should have 1 4 wave 108 radials for the most effective ground plane.
Endgroup mike waters jul 9 17 at 1 04.
It is not always necessary to have a minimum of four radials often even two will suffice.
A ground plane for a cb radio antenna is the metal surface required below the antenna.
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.
Begingroup cb ground plane antennas come in various designs e g.
4 3 out of 5 stars 14.
The radiating element is a quarter wave λ 4 and the radials are 12 longer.
The cb base station antenna stands about 10ft.
Pro trucker white wilson firestik francis astatic cb radio antenna ground plane 3 8 x 24 mirror trucker by wilson.
Vertical antenna with ground plane radials.
It is also possible to shorten them with marginal impact on the performance especially if they are loaded to keep their electrical length.
This calculator can be used to design a quarter wave ground plane antenna with radials.
It also features 3 radials with plastic arms bracket reinforcement that further improve the transmission range.
Possibly the radials have been removed or the antenna has been otherwise modified.
The metal surface enables the signal generated when transmitting to reflect off the surface and travel into the atmosphere.
Nagoya gpk 01 21 radials nmo mount ground plane kit for base or.
In mobile applications the vehicle body acts as the ground plane reflective unit.
Tall when you finally install it which is high enough to capture more reliable signals.
A ground plane for a cb radio antenna is the metal surface needed below the antenna.
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.
Ahh the good old quarter wave ground plane.
The most common ground plane antenna to build is a simple 1 4 wave.
