Modification comment after several months of use 24/24:
- Reliable device does not need to be rebooted, several weeks can work without worries: the need to reboot "frequent" (every few days) is an event lived with other USB stick modem type.
- The connection held up better than I feared to disconnections.
- The router part is a real weak point whitelist limited to 16 entries, not white list to enter a range of ports ... and NETGEAR does not change the device's BIOS (still in version 1 September 2014 ) so that gaps are evident in the router part.
- For a reception at -90dB (7 km relay), the use of two antennas was the reception at -70dB.
- By itinerant (by car), autonomy is more than 5 hours with a single user (PC), placed a few feet.
- Since the ISP allows it (until September 2014 to clamp 8MB / s): I arrive at a rate of 18-20 MB / s (download) and 4-5 MB / s (UPLD), 3G ( dual carrier) with two external antennas (10dBi, cable 10m and quality connectors), 7km relay (direct view), with neat antenna pointing.
- About the BIOS of the Aircard: the device is a Sierra, Netgear simply puts his name on the device without adding anything. Sierra was bought by Netgear, no update on the Sierra site (and returns a link to the site Netgear), Netgear announces no update. So if the router gaps are problematic: do as I do, put behind a REAL router (eg ASUS AC66U) or look elsewhere.
Note (04/2015): DC-113A (support with integrated antenna and ethernet connections) sold by Amazon did not suitable for AC762S (antenna connector too spread Aircard).