They work great. You can't expect a 5GHz signal to penetrate multiple layers of material. I have a camera and transmitter on the back of a truck in an RV. The signal has to pass through layers of aluminium, wood and metal to reach the receiver mounted on the truck's A-pillar. At first the signal was intermittent and unreliable. I replaced the standard antennas with these and the signal improved immediately. https://smile.amazon.com/gp/product/B01J9N0GDO/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
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