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Joining two shorter cables with this adaptor gave me a tidy run behind the TV stand, and the 75Ω matching keeps the signal clean. Fits snugly on both male connectors, no wobble at all. Simple and does exactly what it should.

I was losing signal on my bedroom TV and this little connector fixed it instantly. The 75Ω impedance matching really does keep the picture crisp with no static, and it joins my two coax cables tight enough that nothing wiggles loose.

The threaded ends screwed on snugly with no wiggle, and my satellite signal didn't drop a single bar after adding this in. 75Ω matching seems to actually hold up, picture's just as sharp as before.