Forum: GNU Radio USRP temperature constraints?

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57371349a0e4580b0362a0441ef5094b?d=identicon&s=25 Vincenzo Pellegrini (Guest)
on 2006-05-27 01:28
(Received via mailing list)
hi,

I was just wondering whether the USRP has got some temperature specs
that i should take into account.

e.g.
maximum continuous usage time, need for cooling, possibility to be
enclosed in a case or anything else.

...just because I noticed that during long testing sessions (2 to 4
hours) the FPGA and the TVRX warm up quite a bit.

thanks

vincenzo
3596cfe1d579c65b9babd35e8787977c?d=identicon&s=25 Matt Ettus (Guest)
on 2006-05-30 08:39
(Received via mailing list)
On Sat, 2006-05-27 at 01:26 +0200, Vincenzo Pellegrini wrote:
> hours) the FPGA and the TVRX warm up quite a bit.
All of the chips in the USRP are specified over at least the 0-70C
range.  At room temperature the USRP can run all-out continuously for
days at a time.  Any enclosure should take the power consumption of the
system into account.  This can be as high as 15-18 Watts depending on
what daughterboards you use.

An enclosure for the USRP will be released some time in the next 2
months.

Matt
57371349a0e4580b0362a0441ef5094b?d=identicon&s=25 Vincenzo Pellegrini (Guest)
on 2006-05-30 12:19
(Received via mailing list)
On Mon, 2006-05-29 at 23:36 -0700, Matt Ettus wrote:
> > ...just because I noticed that during long testing sessions (2 to 4
>
> Matt
>

thanks
vincenzo
63d6de710dcc83e3c19af98ab6c401d7?d=identicon&s=25 Marcus Leech (Guest)
on 2006-05-30 12:43
(Received via mailing list)
Vincenzo Pellegrini wrote:
>> Matt
>>
>>
>
>
I run my USRP+DBS_RX combination inside a styrofoam cooler box, in order
to stabilize the temperature.
  With a room temperature near 20C, it runs at about 38C.   I run the
USRP+DBS_RX more-or-less
  continuously for radio astronomy applications.   In my application
tiny temperature-induced gain
  variations can be a real problem, hence the need to stabilize the
temperature.
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