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Here is one of recommended methods: It's from The ARRL Handbook if I'm not mistaken. Personally I use two layers of electrical tape covered with two layers of varnish.


Properly applied tape is the appropriate solution: The box, and the connection between the connector and the box should already be waterproofed if the balun is made well. If not, you could always disassemble and put it back together with some silicone sealant, and add a weep hole somewhere for residual moisture to ...


In my experience, the small amount of exposed thread on the SO-239 after inserting the PL-259 is the primary challenge in weatherproofing this connection. The first line of defense is to orient the housing with the connector pointing toward the ground to prevent water from pooling around the joint, particularly in the presence of ice and snow. I break the ...

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