Shakespeare 399-1M 9'6" VHF Antenna with Mast Mount for Marine and Communication Use

Style 399-1M VHF 6dB

Collinear Phased 5/8-wave with two coaxial chokes to suppress cable radiation

The Style 399-1M is the same as the 399-1, but it has a special sleeve for mast mounting. A professional quality antenna in a compact package. This extra-duty antenna combines strength and performance for use where you really need the efficiency of a large antenna, but don't have room for one.

• Brass and copper elements
  
• Chrome-plated brass ferrule with standard 1-14 thread
  
• Aluminum sleeve for mast mounting
  
• Suggested mount: 1-1/4 U-bolts are supplied. The 399-1M can be strapped to a larger mast using steel banding (not supplied)
  
• Two sections: Base 75; Tip 39 UPS shippable

Technical Specifications:

Frequency:	VHF Marine band
Bandwidth:	(within 2.0:1 SWR): 5MHz
SWR:	1.5:1 at 156.8 MHz
Impedance:	(ohms): 50
Gain:	6 dB
Max Input (Watts):	100
DC Ground:	YES
Termination:	SO - 239
Height (feet):	9.5
Polarization:	Vertical
Radiation pattern:	Omni-directional

The Shakespeare 399-1M is a professional-grade VHF marine antenna designed for optimal performance in compact spaces. Featuring a collinear phased 5/8-wave design, this antenna delivers a gain of 6 dB and provides reliable, omni-directional radiation suitable for marine communication and other VHF applications. Constructed with brass and copper elements, the antenna ensures durability and efficient signal transmission. A chrome-plated brass ferrule with a standard 1-14 thread allows for easy installation, while the aluminum sleeve facilitates secure mast mounting. The included mast mount accommodates 1-1/4-inch U-bolts, and the antenna can be strapped to larger masts using steel banding for versatile installation options. The antenna's two-section design, with a base length of approximately 75 inches and a tip measuring around 39 inches, makes it suitable for various mounting configurations without sacrificing performance.