Heat sinks from an old P2 CPU fit on the radio card well. This is where the
heat is comming from so I put the heat sink on the radio card.
Bernie Beckel
----- Original Message -----
From: "Wisp Notes" <wisp-notes@s1-i.net>
To: "Karlnet Mailing List" <karlnet@WISPNotes.com>
Sent: Tuesday, July 29, 2003 9:54 AM
Subject: Re: [Karlnet] Thermal Solutions
> As far as our power supplies are concerned, we've used an 18v and a 14v.
It doesn't appear to make any difference in which one we use. As far as the
fan, doesn't 120mm fan seen a bit over-kill? We have thought of using the 5v
header that is on the board to power a small fan, but I don't see it doing
enough good without a heatsink for the cpu. Another thought we've had an
will be trying soon is using just a sheet of thin aluminium to mount on the
backside and provide shade from the sun.
>
> Has anyone found some good cheap heatsinks that will work?
>
> Has anyone found some small fans they like too?
>
> Thanks,
>
> Paul
> Source One Internet
>
>
> *********** REPLY SEPARATOR ***********
>
> On 7/28/2003 at 2:31 PM Steve Loomis wrote:
>
> >We are running Karlnet board with Teletronics 200mw card and an Orinoco
> >32mw
> >card in a metal box high on the tower with a 120mm muffin fan blowing
> >across
> >both cards. The box is sealed and has been surviving the 100+ degrees
> >temperatures in the Oklahoma sun. No lockup so far. We are using a 15vdc
> >power supply on approx. 120' of CAT 5 via POE adapter. The fan is power
> >separately via another run of CAT 5.
> >
> >Steve
> >
> >----- Original Message -----
> >From: "Larry Yunker (Cyber Broadcasting)" <leyunker@cbcast.com>
> >To: "Karlnet Mailing List" <karlnet@WISPNotes.com>
> >Sent: Monday, July 28, 2003 12:37 PM
> >Subject: Re: [Karlnet] Thermal Solutions
> >
> >
> >> We found that running at a lower voltage helped with breakdowns. We
were
> >> running one Karlnet board on a Hyperlink 48V-DC injector with 150ft of
> >cat5.
> >> The Karlnet board was locking on hot days. We then dropped to a 24V-DC
> >> power injector (CANOPY) and we haven't seen a lockup since we made the
> >> switch. Could have been a thermal thing... could have just been too
much
> >> power.
> >>
> >> Larry
> >>
> >>
> >> ----- Original Message -----
> >> From: "Wisp Notes" <wisp-notes@s1-i.net>
> >> To: <karlnet@WISPNotes.com>
> >> Sent: Monday, July 28, 2003 11:43 AM
> >> Subject: [Karlnet] Thermal Solutions
> >>
> >>
> >> I just wanted to know what everyone else is using as a thermal solution
> >for
> >> the WPCPE+ boards right now. We have heard a few from some people, but
> >they
> >> didn't sound like they have really tested anything to be sure. All of
our
> >> enclosures are aluminum with a glossy white finish. It works fine for
> >many
> >> of the boards, but hot weather has made many also a few degrees too
hot.
> >Any
> >> info would help. I'm also surprised I haven't seen anything else about
> >this
> >> on the list yet.
> >>
> >> Thanks,
> >>
> >> Paul
> >> SourceOne Internet
> >>
> >> _______________________________________________
> >> Karlnet mailing list
> >> Karlnet@WISPNotes.com
> >> http://lists.wispnotes.com/mailman/listinfo/karlnet
> >>
> >>
> >>
> >> _______________________________________________
> >> Karlnet mailing list
> >> Karlnet@WISPNotes.com
> >> http://lists.wispnotes.com/mailman/listinfo/karlnet
> >>
> >
> >_______________________________________________
> >Karlnet mailing list
> >Karlnet@WISPNotes.com
> >http://lists.wispnotes.com/mailman/listinfo/karlnet
>
>
>
>
>
> _______________________________________________
> Karlnet mailing list
> Karlnet@WISPNotes.com
> http://lists.wispnotes.com/mailman/listinfo/karlnet
>
|