Dnia Sun, 31 Dec 2017 12:06:56 +0100, Piotr Wyderski napisał(a):
> Właśnie odkryłem, że antenki do routerów występują
> zarówno w wersji SMA (co zawsze zakładałem), jak i
> reverse polarity SMA. Różnica polega na tym, czy
> antenka ma złącze męskie, czy żeńskie. Skąd w ogóle
> pomysł produkowania tego w dwóch wariantach?

Hm, wiki chyba ma odpowiedz

https://en.wikipedia.org/wiki/SMA_connector#Reverse_
polarity

RP-SMA connectors have been widely used by Wi-Fi equipment
manufacturers to comply with specific national regulations, such as
those from the FCC,[11] which are designed to prevent consumers from
connecting antennas which exhibit gain and therefore breach
compliance. However, by 2000, the FCC regarded the connectors as
readily available,[12] though delaying its ruling indefinitely.[13] As
of 2017, leading manufacturers such as Netgear and Linksys are still
using RP-SMA connectors on their Wi-Fi equipment

J.