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NGP (No Ground Plane)

No Ground Plane (NGP) Antennas:

If you try to use standard ground-based CB equipment with a vehicle or in a situation that requires a "no ground plane" antenna, you'll likely experience both high SWR levels and extremely poor performance. Wondering what a ground plane is? Check out our article in our Help Center!

Vehicles that require NGP equipment:
  • Have a fiberglass shell or coating over much or all of the vehicle
  • Have little or no metallic chassis for the antenna to be grounded to
Vehicles that should use NGP products:
  • Motor homes and large fiberglass coaches
  • Camper shells where the antenna is mounted directly to the fiberglass (instead of the vehicle)
  • Boats
  • Motorcycles with little or no ground plane

'No ground plane" (NGP) CB antennas with NGP coax were specifically designed to solve the problems associated with the lack of ground plane (counterpoise). This normally occurs on vehicles constructed of plastic, fiberglass, and wood. This includes, but is not limited to, motorhomes, 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 NGP antennas can also eliminate 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 versatility of these antenna goes way beyond the normal expected uses of a typical mobile antenna kit. Aside from vehicular installations, these kits can be mounted on a pack frame for hunting or Search and Rescue operations; Apartment dwellers can mount them on a balcony railing; or a temporary base station can set up in the forest using a tree for a tower.

Popular NGP Antenna Kits:

FGX648 Firestik NGP Kit

LGXM2 Firestik NGP Kit

Additional note:
If you are putting together your own kit, make sure that you not only select a no ground antenna, but also the proper coax, such as the K8NGP. NGP Coax is essential. For more information regarding this, see our article on selecting the proper coax.

Use NGP coax cable for NGP antennas. Using no ground plane antenna cable for a traditional antenna (and vice versa) will give you high SWR problems. If you already have a NGP coax and need to extend it (possibly needing a KPL258X connector), you can do so by using RG8X coax but keep in mind that you will have some loss. Kalibur coax has 95% shield and is the coax we would recommend. Most of the NGP kits have specialized RG58 coax. If you cannot extend the coax for your NGP system or can't make an NGP setup work for you, you could install a metal plate to create a ground plane and use a standard antenna.


$64.61 $51.69
Fiberglass, Side Mount

LGXM2 - Firestik Firefly NGP No Ground Plane CB Antenna Kit

In stock

$32.66 $26.13
Maxrad, Maxrad
MAT450NGP - Maxrad 450-470 MHz Replacement Coil Only
In stock
+

$34.08 $27.26
Maxrad, Maxrad
MAT450NGPS - Maxrad 450-470 MHz Replacement Coil Only

$48.79 $39.03
Maxrad, Maxrad
MHB5802- Maxrad No Ground Plane VHF Antenna

$29.31 $23.45
Maxrad, Maxrad
MUB450NGP - Maxrad 450-470Mhz 5Db 32 1/2" Replacement Rod For Muf4505Ngp
In stock
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$40.33 $32.26
Maxrad, Maxrad
MUF4065NGP - Maxrad 406-430Mhz 200 Watt 5Db Gain Base Load Antenna
In stock
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$38.71 $30.97
Maxrad, Maxrad
MUF4502 - Maxrad 450-470Mhz Unity Gain Antenna W/No Ground Plane
In stock
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$57.31 $45.85
Maxrad, Maxrad
MUF4505NGP - Maxrad 450-470Mhz 5Db No Ground Plane Antenna
In stock
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$74.44 $59.55
Maxrad, Maxrad
MUF4505NGPS - Maxrad 450-470 No Ground Plane Antenna W/Spring

$77.24 $61.79
Maxrad, Maxrad
MUF8003NGPS - Maxrad 806-866 No Ground Plane Antenna W/Spring
In stock
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$50.20 $40.16
Everhardt
NGP1 - Everhardt 4' NGP No Ground Plane CB Antenna Kit

$50.20 $40.16
Everhardt, Everhardt
NGP1-B - Everhardt 4' Fiberglass NGP Mirror Mount Antenna Kit

$55.58 $44.46
Everhardt, Everhardt
NGP1SM-B - Everhardt 4' Fiberglass No Ground Plane Antenna Kit
In stock
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$21.01 $16.81
Everhardt, Everhardt
NGPC1 - Everhardt Replacement Cable For NGP1 Antenna Kit
In stock
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$20.48 $16.38
Everhardt, Everhardt
NGPS - Everhardt 4' Replacement Whip For Ngp1 Antenna Kit
In stock
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$20.48 $16.38
Everhardt, Everhardt
NGPS-B - Everhardt 4' Replacement Whip For Ngp1 Antenna Kit (Black)