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XTREME MJ survives Hurricane Irma! Read one customer's experience (September 2017):
"We've owned a Bad Boy (Xtreme) MJ for about 3 years now, and it has been a highly valuable device on board. We've got it installed at the top of the mast, riveted in on the provided L bracket. We are located in St Maarten where we recently took a huge Category 5 direct hit with over 200MPH/360KPH winds. I'm happy to report the Bad Boy, with antenna, is still mounted at the top of the mast. Suffice to say, your product is pretty robust. Thanks again!" - Derek, s/y ARAVILLA

If you can find a better price for a complete system similar to Xtreme, we will better it by 10%!
Practical Sailor "We think it’s a good value for a high-quality product"   Read...
  • Junction Box Kit
  • Junction Box Open
  • Junction Box Terminal Block
  • Junction Box Bottom with Adhesive Mounting Square
  • Punch Down Tool
  • Stripping Cable with Included Tool

Junction Box


Product Description

Use this Junction Box to reconnect two sections of cable. The terminal strip provides for a convenient way to connect and disconnect at a later date. For example, if your antenna is mounted at the top of a sailboat's mast, the cable can be easily detached when the mast is being removed for off season lay-up.

The Junction Box has a connection diagram on its cover to aid in connection.

Typical Usage

Having mounted your Wi-Fi device at your ideal outside location, perhaps on a sailboat's mast or rail, it may be necessary to transition the cable from the outside to the inside, and be able to conveniently disconnect the cable, such as mast removal during winter storage. The junction box provides a fast and easy way to disconnect/reconnect the cable. Interior use only, not to be used outside.


  • Small size: 2.5" x 1.5" x 1" (6.5cm x 3.5cm x 2.5cm)
  • Connection diagram on box cover
  • Numbered and colour coded pins for easy identification
  • Tie wraps to secure cable
  • Mounting screws and adhesive square (for quick mounting)


  • Junction Box
  • 2 Mounting Screws
  • Adhesive Mount
  • Tool to strip cable jacket and punch wire onto pins
  • Installation Guide
Note: Junction Box is intended to be used in a dry location. Not for outdoor use.

Warranty Information

Please refer to 'Warranty Terms and Conditions' at the bottom.


2.5" x 1.5" x 1" (6.5cm x 3.5cm x 2.5cm)
RoHS Compliant:

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0.25 LBS
In stock, available for immediate shipment
Calculated at checkout


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