[LargeFormat] Radio Flash Slaves

[Clive Warren]

Having had the opportunity recently to use some radio flash slaves I have 
been spoiled forever and unfortunately now have another photographic object 
of desire. No more trailing wires and dodgy flash sync connections, no more 
relying on light driven flash slaves, no more of the "did that third head 
go off or not" questions.

OK, so here is the problem, given that the price of a new radio slave 
system is about the same as the purchase price of my entire field outfit 
how can I possibly justify such an expense?  The answer is that probably 
there is no way it can be justified, so the thought of DIY springs to mind.

Does anyone on the list have the skills, knowhow, or a URL that they can 
direct me to for constructing a radio flash slave unit.  The issues are - 
deaf receiver/high power transmitter vs coded digital pulse. The second 
option may result in latencies that will make higher shutter speeds 
unusable as the code/decode cycle will take too long. The first option is 
environmentally unfriendly and requires more battery power.

Any thoughts or suggestions?

Cheers,
            Clive