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
• One section

Technical Specifications:

• Frequency: VHF Marine band
• Bandwidth (within 2.0:1 SWR): 5 MHz
• 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