John-Edmonton
Silver Member
- #1
Thread Owner
And yes....it's only an air test, but it still tells a story

Adrian SS said:Hi John,
Your graph test figures pretty well matches what I get from my Infinium. the only difference is that I used an Aussie 5 cent & 10 cent coin and both could be heard at the same distances even thought the 5 cent is slightly smaller than the 10.