0
\$\begingroup\$

Looking at various ARA prototype pictures I noticed they all seem to feature pluggable connectors.

Sadly I could not find out which ones. Can anyone make heads or tails of this picture? enter image description here

\$\endgroup\$
3
\$\begingroup\$

Those are SMA connectors, perhaps the most common 50 ohm coaxial rf connector these days. Two variants exist: SMA and RP-SMA. The former has the center pin on the cable, while the latter has it on the PCB/chassis end:

The FCC wanted to prevent consumers from using third party antennas on WiFi equipment, so they designed a functionally identical yet incompatible connector (RP-SMA) so that consumers wouldn't have a choice. This of course backfired immediately (China exists), and both types are readily available.

\$\endgroup\$
  • \$\begingroup\$ Yes, some subway system replaced their Edison screw base lighting with left handed threaded bases to prevent pilferage. I expect they lost a few left handed fittings and the bulb pilferage continued at a lower level. \$\endgroup\$ – KalleMP Oct 9 '16 at 19:34

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.