On Mon, 14 May 2012 18:01:01 -0400
Joseph M Gwinn gw...@raytheon.com wrote:
Modern outdoor enclosures use a filter of some kind, but the underlying
principle is the same.
I don't know what other types are around, but we use vents with
a gore-tex foil over them. Keeps water out but lets the
All,
W.L.Gore and Associates makes a whole line of these things, but I'm not
sure where you go to buy just one.
http://www.gore.com/en_xx/products/venting/protective/index.html?xcmp=ijdgpvmktgurl
73,
geo - n4ua
On Tue, May 15, 2012 at 2:59 AM, Attila Kinali att...@kinali.ch wrote:
On Mon,
Pretty neat snap in vents and all.
Not sure how you buy a few either
On Tue, May 15, 2012 at 8:02 AM, George Dubovsky n4ua...@gmail.com wrote:
All,
W.L.Gore and Associates makes a whole line of these things, but I'm not
sure where you go to buy just one.
At 10:49 AM + 5/15/12, time-nuts-requ...@febo.com wrote:
Date: Tue, 15 May 2012 08:59:04 +0200
From: Attila Kinali att...@kinali.ch
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Subject: Re: [time-nuts] wwvb weak on east coast especially when
On Tue, 15 May 2012 08:35:20 -0400
Joe Gwinn joegw...@comcast.net wrote:
Gore-tex blocks liquid water (and dust), but allows water vapor to
pass, so one can still get pumping and the accumulation of condensed
water. Where are your enclosures used, and how exposed are they?
The most
[mailto:time-nuts-boun...@febo.com] On
Behalf Of Joe Gwinn
Sent: Tuesday, May 15, 2012 8:35 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] wwvb weak on east coast especially when the
pre-amps under water.
At 10:49 AM + 5/15/12, time-nuts-requ...@febo.com
, May 15, 2012 7:03 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] wwvb weak on east coast especially when the pre-amps
under water.
All,
W.L.Gore and Associates makes a whole line of these things, but I'm not
sure where you go to buy just one.
http
Thanks everyone yesterday for your wwvb comment. I now know why the wwvb
signal droped to -120db.
Seems that over 4 years water slowly built up in the preamp housing. Water
and rust do make fine conductors.
May have effected bias just a bit and everything else.
Washed it all out and will let it
Paul.
On 05/14/2012 07:20 PM, paul swed wrote:
Thanks everyone yesterday for your wwvb comment. I now know why the wwvb
signal droped to -120db.
Seems that over 4 years water slowly built up in the preamp housing. Water
and rust do make fine conductors.
I had the same problem with a GPS
Magnus
Yes indeed will be working tonight. At least the preamp.Need to figure out
what was leaking yet. A bit messy but no real damage and it uses nothing
but simple parts.
It also allowed water into the coax so will need to chop 3ft off and put a
new connector on. Minor stuff.
Regards
Paul.
On
Paul,
On 05/14/2012 09:46 PM, paul swed wrote:
Magnus
Yes indeed will be working tonight. At least the preamp.Need to figure out
what was leaking yet. A bit messy but no real damage and it uses nothing
but simple parts.
Good to hear.
It also allowed water into the coax so will need to chop
mag...@rubidium.dyndns.org said:
I had the same problem with a GPS antenna at work. Somebody had put the
manufactures label over the porus plug that should have vented out any
water... but it didn't so I had too high water-level inside the antenna.
How does water get in?
I'm not doubting
Hal,
On 05/14/2012 09:54 PM, Hal Murray wrote:
mag...@rubidium.dyndns.org said:
I had the same problem with a GPS antenna at work. Somebody had put the
manufactures label over the porus plug that should have vented out any
water... but it didn't so I had too high water-level inside the
How does water get in?
Is this a Spectracom 8206? Should I worry about mine (that one that's
outdoors)?
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Magnus is right lots of ways for water to sneak in.
So I have not had time to figure it out yet. But it is a copper loop and I
suspect the place its joining the preamp box let water in over time. The
fact is even a small pin hole that allows air in and out thats humid can
allow water buildup. But
On 05/14/2012 11:04 PM, paul swed wrote:
Magnus is right lots of ways for water to sneak in.
So I have not had time to figure it out yet. But it is a copper loop and I
suspect the place its joining the preamp box let water in over time. The
fact is even a small pin hole that allows air in and
time-nuts-boun...@febo.com wrote on 05/14/2012 05:04:13 PM:
From: paul swed paulsw...@gmail.com
To: Discussion of precise time and frequency measurement time-
n...@febo.com
Date: 05/14/2012 05:04 PM
Subject: Re: [time-nuts] wwvb weak on east coast especially
when the pre-amps under
Am 14.05.2012 21:54, schrieb Hal Murray:
mag...@rubidium.dyndns.org said:
I had the same problem with a GPS antenna at work. Somebody had put the
manufactures label over the porus plug that should have vented out any
water... but it didn't so I had too high water-level inside the antenna.
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