> 300m is mighty impressive, but if that is completely directional
> from the board edge then perhaps less useful

David, just been out for several walks

I can see no significant difference in whatever orientation the
Splatch is in, vertical or horizontal, with either the short or long
edge facing the detection direction. Which is good news for at
least one application I have in mind. The signal starts to weaken
at around 300m, and you have to go sideways here and there to
pick it up. So you might call it a reliable 200m, fairly reliable at
250m and pushing your luck at 300m

BTW, this is not just a signal strenth test. A pre-amble and
16-bit ID code is sent (as 32 bits of Manchester) which must
be received, decoded and confirmed for the receiver's LED
to flash. If you were detecting something more basic, like a
1kHz tone, the range would possibly be a bit further

Will be having a go at the helix next

Joe
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