INFL8-5 Inflatable VHF Antenna

5’ (1.5m) Galaxy®-INFL8 VHF 3dB – Inflatable Emergency & Special Purpose Antenna.

Ideal for:  Emergency Antenna, Backup Antenna, Kayaks, Jet Skis, Inflatables & Dingeys.

The GALAXY INFL8-5 by Shakespeare is the world’s first emergency antenna with the performance to earn the GALAXY name. It is an inflatable antenna that can be rapidly deployed via a CO2 cartridge or a manual tube and inflates to 5 ft (1.6 m) to offer a full 3dB antenna with a range of up to three times greater than any existing helical emergency antenna. Thanks to its inflatable design, the antenna can be deflated and stowed away safely in its easy-to-spot storage bag until it is needed again.

The antenna can be mounted with its hook and loop straps allowing for quick and easy installation in any weather to stanchions, outriggers or other vertical structures on board. The antenna also features grommets on the top and bottom to facilitate hanging and securing to spreaders, masts, hard tops and other structures even in case the inflatable bladder becomes damaged.

The connectors included in the package allow for versatile connection options. The pre-soldered PL-259 connector allows connection to a Fixed VHF directly or a handheld via the included SMA Adaptor. The package also includes a solder-free female UHF connector that allows the antenna to be spliced into existing coax cables on the boat.


  1. Not for use as a personal flotation device.
  2. Not for use as a visual distress signal.
  3. Not suitable for submersible/ man overboard applications.



Band: VHF Marine Band
Antenna Gain: 3dB
Max. Input Power: 50 Watts
SWR: nominally 1.5:1 at 156.8 MHz
Bandwidth: 156-162 MHz within 2.0:1 VSWR
Mounting: Via 2ea x 2ft (600mm) long built-in hook-and-loop straps.
Can be hung and tied to structures through its grommet holes.
Inflation >24 hrs per  cartridge
Recommended Cartridge 16g threaded CO2 cartridge
Coax Supplied: 20 ft (6m) of RG-174 cable
Connector Supplied: PL-259 pre-installed.
Adapter to adapt over to SMA male for use with handhelds.
Unique solder-less UHF female connector to splice antenna into existing RG-8X or RG-58 coax cabling on boat.
Polarization (Pattern): Vertical (Omnidirectional)
Impedance: 50 Ohms
DC Ground: DC Grounded – The antenna will read shorted on continuity test.
Limited Warranty:
5 years

Features & Benefits

Inflatable to Full 5Ft Full 3dB performance in an emergency antenna. Easily stowable.
CO2 cartridge inflatable Rapid & rigid inflation.
Manually inflatable* Inflate incase CO2 cartridge is not available.
Straps & Grommets Versatile mounting options.
Storage Bag Conveniently stow away in its highly visible bag until needed again.
Included SMA Adaptor Compatible with most fixed mount and handheld VHF Radios.**

* When manually inflated, the product does not inflate to be rigid enough to be mounted free standing. Recommended only if antenna can be supported at the bottom and the top.
** Check with your radio manufacturer for compatibility with the included adaptor. The adaptor features an SMA male.

Multi-Award Winning


There are no reviews yet.

Add Review

Add Review

Be the first to review “INFL8-5 Inflatable VHF Antenna”