Well, you probably couldn't organise a better test than that - 7 years in a=
tree is impressive even without the hurricane.
I don't understand about the PVC tube, etc. Was the box inside the tube, wh=
ich was inside the bottle? Why so many layers? I assume both ends of the bo=
ttle were cut off? It sounds like it would affect the acoustics.
Peter Shute
> -----Original Message-----
> From:
>
> Sent: Monday, 27 July 2015 9:58 AM
> To:
> Subject: RE: [Nature Recordists] Weatherproofing Mics?
>
>
>
> Actually the strain reliefs are a part of the seal. I epoxy
> the EM172 inside the strain relief and then when you mount it
> in the wall of your enclosure you use a sealant on the
> mounting threads and o-ring. This method relies on the
> moisture-proof seal on the capsule. While I don't recommend
> it for use as a hydrophone our experience shows it is good
> protection from the weather.
>
>
>
> I used it with a froglogger years ago mounting it in a pvc
> tube and then in a 2-liter coke bottle for additional
> protection. We then glued foam rubber on top of the 2-liter
> plastic bottle to dampen the noise from the raindrops. Then
> it was mounted in a tree in the Spring of 2008. A few months
> later we suffered a direct hit from hurricane Ike. It was
> mounted in a tree near a stock pond on my son's horse farm.
> He lost 42 large trees due to the hurricane but the tree the
> mic was in was spared. I just retrieved that mic a couple of
> months ago because they we enlarging the stock pond and had
> to cut down the tree the mic was mounted in. It's a little
> discolored but still works all these years later. I haven't
> run any tests in the lab but it sounds good just like the day
> it was installed.
>
>
>
> Gene
>
>
>
>
>
> From: [nae
>
> Sent: Sunday, July 26, 2015 6:38 PM
> To:
> Subject: RE: [Nature Recordists] Weatherproofing Mics?
>
>
>
>
>
> So you're saying EM-172s are already moisture proof, Gene? We
> just need to seal the edges of the holes they're mounted in?
> Did you also provide any kind of shelter to avoid rain
> hitting the capsules directly?
>
> I assume the strain reliefs are just a convenient method of
> mounting them, not an essential part of the seal?
>
> Peter Shute
>
> > -----Original Message-----
> > From:
> >
> > Sent: Saturday, 25 July 2015 1:13 AM
> > To:
> > Subject: RE: [Nature Recordists] Weatherproofing Mics?
> >
> >
> >
> > A few years ago I was shipping a froglogger that used a LS-7 and it
> > had weather-proof EM-172 mounted in the sides of a pelican case. I
> > haven't been able to do much with frogloggers lately
> because of health
> > issues. Just got out of hospital again a few days ago.
> >
> >
> >
> > I have some cable strain reliefs that I mount the EM172
> > inside of with a generous amount of epoxy. The only part of
> > the EM172 exposed is the face of the capsule with the
> > moisture-proof seal. I'll see if I can find a few and send
> > them to ya. Email me off list and give me an address. You
> > also need some sealer around the hole where it mounts in the
> > side of the case.
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