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$9.99 (Fixed shipping cost)

Product Description



Weather-proof window feedthrough panels bring HF/VHF/UHF antennas, balanced lines, random wire antennas, ground, DC/AC power and Rotator/Antenna Switch Cables into your hamshack without drilling through walls.

MFJ Weather-Proof Antenna Feedthrough Panels mounts in your window sill. They let you bring all your antenna connections into your hamshack without drilling holes through walls.

Real Western Red Cedar wood is naturally resistant to rot, decay and insects -- lasts longer, maintenance-free. Pitch and resin free for a wide range of beautiful finishes or leave it in its naturally beautiful raw finish. 

Simply place in window sill and close window. Edges sealed by weather-stripping. Seals and insulates against all weather conditions. Gives years of trouble-free service. All are ¾" x 3 ½" x 48" , except for MFJ-4605, which is ¾" x 7" x 48" .

Inside/outside stainless steel plates bond all coax shields together to ground connection. Stainless steel ground post brings outside ground connection inside.

Six Models to choose from
MFJ-4602 - Our most popular model. - Three SO-239 Teflon® coax connectors let you feed HF/VHF/UHF antennas. High voltage ceramic feed-thru insulators bring 450/300 Ohm balanced lines into your hamshack. Ceramic feed-thru insulator for long-wire or random wire, Stainless steel ground post brings ground in.

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Product Reviews

  1. No holes in the house. 5 Star Review

    Posted by on 18th Aug 2020

    I recently installed the through the window feed panel as part of an outdoor antenna install. Easy install. Remember, measure twice, cut once. ;)

    I had considered doing the hole through the outer/inner wall of the house thing with a junction box on each side. By the time I would have gotten all the necessary items to do a proper install it would have cost about the same as buying and using the MFJ-4602. Not to mention the extra work and the hole in the side of the house.

    Easy way to have extra antenna coax connections, plus run a balanced dipole later, plus a random wire.

    In the end it was the best choice for my needs. If I ever want to relocate my setup to another part of the house it's just a matter of take the MFJ-4602 out of one window and put it in another.

    As always, MTC has shipped quickly with no hassle.

  2. Good way to bring cables into building 5 Star Review

    Posted by on 27th Jun 2020

    This item allows you to bring in the needed antenna, ground, and power cables into the house without cutting holes to do so! Main Trading Company customer service is far better than most, and I highly recommend them for all your electronic needs!