Adding 4G backup to FRITZ!Box 7530

[John Hardman]

I want to add 4G mobile broadband backup support to my FRITZ!Box 7530.

There is quite a good document about this at https://en.avm.de/service/knowledge-base/dok/FRITZ-Box-7530/76_Setting-up-the-FRITZ-Box-for-use-with-a-mobile-network/

However, that document doesn't identify any suitable 4G mobile dongles that can be plugged into the USB port of the FRITZ!Box, whether ones with built-in antennae, or ones that can be wired up to an external antenna (I'm planning to put up a 4G (5G-ready) antenna anyway, so being able to use that would be ideal). I don't want a dongle that generates its own WiFi, unless I can disable that (we need to avoid contention on 2.4GHz channels). Could anybody identify a currently available 4G mobile dongle that will work with the FRITZ!Box 7530 that doesn't generate WiFi (or that allows it to be disabled) please?

Thanks,

John H

[Graham J]

Problem with a USB dongle is the limited length of the USB cable, so
that you can't put the dongle high enough to get a signal.

Better to use a dual WAN router (i.e. with xDSL and Ethernet) and
configure a separate 4G router for the backup connection. I've asked
here before why nobody appears to make a 4G modem having an Ethernet
connection (PoE would be ideal) but apparently no such thing exists.

So a recommendation is the Teltonika RUT X11 router.

Andrews & Arnold will sell you an xDSL router with 4G backup dongle
which retains the same public IP address when it switches to the 4G
backup service, but it sitll relies on there being a good 4G signal
where you place the router.

--
Graham J