Mar 26, 2012 at 10:52 am #1287847
more at link
However, starting about an hour before dawn on the south coast, there's a bird that begins to call that sounds just like a fox 40 whistle. In the SAR community (at least the local one in the lower mainland), we refer to that bird as "the Fox 40 Bird" because it drives us crazy. For that period of time just before dawn, it makes whistle blasts almost useless because every bird sounds like a distant subject blowing their whistle in return, except presumably the subject would be blowing more frantically.Mar 26, 2012 at 12:45 pm #1859563
"except presumably the subject would be blowing more frantically. "
I don't know if I'd count on that! If you're sitting there, leg lodged under a rock or whatever your situation is, for hours and hours with no sign of help, my guess is you're meekly blowing the whistle every minute or so, and not at all frantically.Mar 28, 2012 at 8:14 pm #1860765
@climberslackerLocale: Your guess is as good as mine.
I was once in a situation where I was hiking and heard what I soon found out was a whistle (from a sternum strap).
I distinctly remember thinking to myself: "What and interesting Birdcall, I should really start learning birdcalls".Mar 29, 2012 at 6:56 am #1860882
@stingray4540Locale: South Bay
I think this is a good reason why you should use the universal sign of distress: 3
I think three blasts on a whistle close together at regular intervals, would sound less "organic"?
Maybe the first set could get mistaken for a bird(s), but I think after a few rounds it would seem unnaturally consistent to most people, especially SAR.Mar 29, 2012 at 7:37 am #1860897
@asciibaronLocale: Mid Atlantic
yes, 3 blasts (not SOS) is how the Boy Scouts are taught and it is what i listen for. SOS in Morse code would be (dit dit dit) (dah dah dah) (dit dit dit), 3 blasts is much quicker and easier esp. in an excited state.
Steve, WM3OMar 29, 2012 at 10:28 am #1860976
3 tweety birds ;)Mar 29, 2012 at 11:02 am #1861005
@asciibaronLocale: Mid Atlantic
"3 tweety birds ;)"
i tawt i taw a puddy tat.Mar 29, 2012 at 1:26 pm #1861091
@nzbazzaLocale: New Zealand
A youth SAR group in New Zealand did some testing on whistles to determine which were the best (and worst) in dense New Zealand bush. Some interesting results were noted. The Storm Whistle followed by the Acme Thunderer were best with an audible range out to 400m (1/4 mile), yelling and screaming were just as effective if only for short periods, the Fox 40 whistle was good for 238m. The link below as more results and the methodlogy used.Mar 29, 2012 at 2:07 pm #1861115
It makes sense that a complex waveform with many harmonics and tonal variations (human voice) would be much better-suited to being heard through / around acoustic impediments such as trees, than a single high-frequency blast (a whistle), which is very directional and more quickly absorbed by any material in the way.Mar 29, 2012 at 2:33 pm #1861122
I got a couple of the Storm whistles after reading about this test – man, they are big! The Fox 40 tucks neatly into a t-shirt; the Storm is a huge big thing! I've yet to actually take it along!Mar 30, 2012 at 9:30 am #1861521
Just wait until this bird learns all of the different whistle models!
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