- Mon Sep 17, 2007 1:55 am
#35197
I'm trying to develop a backup radio system for a UAV to compete in the Australian Outback UAV challenge (www.uavoutbackchallenge.com.au).
The UAV already has high-powered Wifi and two 1W Aerocomm RF modems, but I was thinking about adding a simple audio-based heartbeat-type transmission from the ground to the UAV - I've read about people using DTMF codes for this. The mission specifications say that the plane must automatically crash (:S) if it goes outside radio range, so I want a simple backup radio in case the higher-level stuff fails.
What I need is one of you ham radio guys to point me in the right direction. I'm trying to get by without getting myself a radio licence, so I have to stay below the 4W EIRP limit, but all I need is some documentation or a how-to on building a simple FM radio transmitter with around 1W of output on an unrestricted spectrum, and a receiver to match.
I'm an undergraduate mechatronics engineer and thus have a good knowledge of all things electronic, I'm just not sure where to start on a seemingly basic and common project.
Thanks in advance for any advice.
Will.
The UAV already has high-powered Wifi and two 1W Aerocomm RF modems, but I was thinking about adding a simple audio-based heartbeat-type transmission from the ground to the UAV - I've read about people using DTMF codes for this. The mission specifications say that the plane must automatically crash (:S) if it goes outside radio range, so I want a simple backup radio in case the higher-level stuff fails.
What I need is one of you ham radio guys to point me in the right direction. I'm trying to get by without getting myself a radio licence, so I have to stay below the 4W EIRP limit, but all I need is some documentation or a how-to on building a simple FM radio transmitter with around 1W of output on an unrestricted spectrum, and a receiver to match.
I'm an undergraduate mechatronics engineer and thus have a good knowledge of all things electronic, I'm just not sure where to start on a seemingly basic and common project.
Thanks in advance for any advice.
Will.