Support: CFCIU-1

What is the radio range?

800 metres line of sight between a CFTFU-X16 and the CFCIU-1 communications unit.
This means you can have a 1600m span from the CFCIU-1 communications unit.

How is the unit powered?

The unit uses power from the USB computer or tablet that you connect it to.
The USB socket of that computer should be able to deliver 0.5 amps (500mA) of current.

Why does the unit not stop bleeping when connected to the computer?

Ensure you have removed the ARM Lock key.

What is the radio frequency?

863 MHz to 870 MHz (aka 868MHz) suitable for use in the United Kingdom and all of Europe.  This band is arranged into 70 channels.  CATFire hops between these continuously, avoiding noise.

Why not 2.4GHz?

2.4GHz is heavily crowded by WiFi, Bluetooth and other radio users.
Further 2.4GHz does not penetrate obstacles as well as lower frequencies such as 868MHz.
There are also less channels within the 2.4GHz band, about 14, rather than the 70 available to CATFire.  Further once a channel is selected hopping cannot occur - this can leave a 2.4GHz system vulnerable should other 2.4GHz users begin transmitting.
Regarding WiFi, bursts of high speed data are spread across multiple channels (so as to gain data bandwidth): obliterating any users of individual channels.

Firmware updates available below.