[Paparazzi-devel] 900 Mhz or 2,4 Ghz modem (Chris)

[chris]

If you are in Europe you will need either the 868 Mhz or the 2.4 ghz ones.
The 900 Mhz is allocated to cellular phones in Europe so there might be 
problems.
The 900 Mhz do have frequency hopping (Aerocomm)
so they might get away with interference but i don't know that for sure 
as i have never used them in Europe.
The 868 does not use frequency hopping AFAIK.
If you are located elsewhere (US, Australia etc.) the 900 Mhz is a good 
choise as is the 2.4 ghz.
All depend to what RC transmitter and / or video transmitter bands you 
will use.
Try and use different bands for each service (RC, Video, Telemetry)
I use the 2.4 ghz Xbee pro, a 2.4 ghz RC receiver that uses FHSS
(frequency hopping spread spectrum) and plan to use a 2W 850 to 950 Mhz 
video transmitter.
For example Futaba uses FHSS at 2.4 ghz (Futaba FAAST)
Chris