Garmin Chirp

[Rigger64]

My Question is can the Chirp be used in an underwater cache??
I asked Garmin & all they told me was that they are a land cache thing.
My question to garmin was could a Chirp be used in an underwater cache that has an air gap that the Chirp would be housed in the air gap.
Has anybody tryed a chirp under water yet??
If not has someone got one that they are willing to try it out to see if they work?

[Papa Bear_Left]

The chirp uses 2.4GHz, very similar to the frequency of a microwave oven. This frequency was chosen for microwaves because it's absorbed very readily by water, which is what most food mostly consists of.

So, the chirp signal will get very quickly absorbed by water and I'd be surprised if it would be usable even if only covered by mere cm.

[Philipp]

The did extensive testing in the German forum: As soon as you put the chirp into a bucket of water the signal is gone

No it doesn't work

[Rigger64]

The chirp uses 2.4GHz, very similar to the frequency of a microwave oven. This frequency was chosen for microwaves because it's absorbed very readily by water, which is what most food mostly consists of.

So, the chirp signal will get very quickly absorbed by water and I'd be surprised if it would be usable even if only covered by mere cm.

Now that you mention the frequance of the Chirp that makes a lot of sense.
I have worked with Microwave Radio @ vereus Frequince's for about five years & like you were saying @ in the 2 Ghz range when it rained the signal would get hammered in relation to the intensity of the rain & the size of the rain drops.

Thats a bit of a Bummer that they won't work in/under water.
Thank you for the bit of info.