That would be greatly appreciated, Gene.
Peter Shute
> -----Original Message-----
> From:
>
> Sent: Tuesday, 28 July 2015 2:39 AM
> To:
> Subject: RE: [Nature Recordists] Weatherproofing Mics?
>
>
>
> The pvc tube is used for the body of the mic with the EM172
> inside cushioned with a set of foam and rubber grommets. It
> can be made easily by anyone. I'll find my eng dwg and post
> it. I will also find my pics and description of the mic unit
> that made it through hurricane Ike. I still have that
> assembly right here in front of me. I'll try to explain how
> this assembly is protected from the rain and include some
> suggestions for outdoor mounting. I will also include a pic
> of my cable strain relief EM172 mounting and the simplest
> EM172 outdoor mounting.
>
>
>
> Gene
>
>
>
> From:
>
> Sent: Sunday, July 26, 2015 7:59 PM
> To:
> Subject: RE: [Nature Recordists] Weatherproofing Mics?
>
>
>
>
>
> 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, which was inside the bottle? Why so many
> layers? I assume both ends of the bottle 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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