The FG2-DD series 'No ground plane" (NGP) CB antenna kits were specifically designed to solve the lack of ground plane (counterpoise) problems found on vehicles constructed of plastic, fiberglass, wood or aluminum. This includes, but is not limited to, motor homes, boats, automobiles and 18-wheeler trucks. Ground plane problems typically show up in the form of high standing wave ratio (SWR) and poor performance. The isolated ground plane that is built into the FG2-DD series kits will also alleviate problems on metal base vehicles that lack the sufficient ground plane for proper operation. This could be due to the size of available ground plane (ATV, bicycle, motorcycle, wheelchair, etc.), or because the operator chooses to mount the antenna in a location that is unable too properly take advantage of available ground plane. The FG2-DD series kits are designed for mounting on a flat horizontal surface. They are the ideal choice for motor home roofs, the deck of a boat, the roof of a pick-up camper or cap, the trunk deck of a Corvette, or the roof of a fiberglass or aluminum 18-wheeler tractor. The installed height above roofline, including the spring and antenna is just less than 29 inches (737mm).

COMPONENT INFORMATION:

ANTENNA: The antennas used in these kits utilize the same 5/8 wave as the patented Firestik II tunable tip antenna. The antenna's frequency is altered in order to maintain a desirable center band position when used with the tuned coaxial feedline. Accordingly, these antennas may only be used with the Firestik NGP cable. The core material is a 3/8-inch (0.375" or 10mm) diameter reinforced plastic (fiberglass). FireStik's custom blended formula offers a preferred balance of flexibility and strength. The chrome plated machine brass mounting base has standard 3/8"-24 threads. A high efficiency, voltage increasing helical wind is utilized. Heavy insulated copper wire is used to guard against shorted coils and corrosion induced resistance. The antenna used in this kit has FireStik's patented "no tools required" tunable tip for fast and easy SWR adjustments. The rated maximum wattage for the antenna in this kit is 100 watts. Each antenna is covered with a static reducing, heavy PVC shrink tubing with both pigment and UV stabilizers mixed in. Available colors are black or white with a red tip or, red or blue with a white tip. COAXIAL FEEDLINE: The seventeen-foot ((5.2 M) RG-58 A/U coaxial cable used in these kits is of the highest quality. Due to the vibrations found on all mobile installations, a multi-wire stranded center conductor is used to prevent breakage. Surrounding the center conductor is a long life, flexible polyvinyl insulation. To guard against signal leakage, the center conductor is shielded with a copper wire braid that averages about 95% coverage (versus the industry standard of 70%). The coaxial feedline, besides being the conduit for the signal to reach the antenna, serves as a tuned circuit that creates the necessary counterpoise. If a longer cable length is required, the user may add standard RG-58 A/U cable between the radio and system cable, preferably in lengths that are multiples of nine feet.

MOUNT, SPRING AND HARDWARE: To compliment the quality of the antenna and feedline, the exposed outer mounting disk is made of stainless steel and includes a rubber sealing gasket. A stainless steel spring with machined brass ends acts as the coupling between the antenna and the feedline.