The Firestik FG3-648 NGP 27MHz CB antenna kit is a high-quality No Ground Plane (NGP) 27MHz antenna, specifically designed for vehicles and installations without a sufficient ground plane. This makes the antenna perfect for use on boats, RVs, trucks, and other fiberglass, plastic, or aluminum vehicles. Thanks to its built-in counterweight, this kit delivers optimal performance without the disadvantages of a poor ground plane, resulting in low SWR and a stable connection.
- No ground required: ideal for boats, RVs, and non-metallic vehicles
- Tool-free tunable antenna: quick and easy SWR adjustment
- Top Loaded 5/8 wave antenna: increased efficiency and better reception
- Long, flexible Fire-Flex coaxial cable (5.2 meters): specially designed for NGP systems
- Stainless steel mirror mount and spring: robust and vibration-resistant
- Reduces static noise by up to 50%: for clear communication
Below is an overview of the Firestik FG II No Ground Plane antenna kits for RVs, boats, trucks, and vehicles without a metal ground plane

Ideal for various applications
The Firestik FG3-648 NGP solves problems arising from a lack of a metal ground plane. This often occurs with boats, RVs, caravans, motorcycles, and trucks. Thanks to the built-in counterweight, the antenna operates without the need for a large metal surface, which lowers the SWR and improves performance. This also makes the Firestik NGP antenna suitable for hunting, search and rescue operations, or temporary field base stations.
Important: As with any 27MHz CB antenna, the Firestik FG3-648 must be correctly tuned after installation for optimal performance.
Available accessories and parts
- PVC adjustable antenna tip in 3 colors (red, black or white) for FS and FG series
- Tuneable Tip Repair Kit for Firestik FS and FG antennas (red)
- K-8NGP replacement Fire-Flex NGP coaxial cable
Please note: The antenna whips of the FS series resemble those of the FG series, but have a different resonant frequency. They are not interchangeable.
Read our comprehensive guide to Firestik antennas or view the complete Firestik product range.
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