Max temperature for usrp2

GNU Radio
1

Hi all-

I’m about to conduct some measurements on a running GE aircraft jet
engine with the USRP2. The test cell temps could reach 150 F. Is that
going to fry my USRP?

Thanks,
eric

2

Why not just run some hefty cable from the test environment to the USRP?
Sounds fun, though!

Jordan

3

Eric Matlis wrote:

Hi all-

I’m about to conduct some measurements on a running GE aircraft jet
engine with the USRP2. The test cell temps could reach 150 F. Is
that going to fry my USRP?

We haven’t done any testing at those temperatures (about 66 C), but it
is within the temperature specs on all the parts in there. Make sure
you put the top on the enclosure, and that the fan is running.

Matt

4

Eric, in your 2009 experiment indicated below, did the USRP2 sustain
the high temperature of 150 F?

Is there anybody else who has tried to use USRP2 continuously at a
temperature above 105 F? Your feedback is highly appreciated.

Andrew

5

I have the same problem – I’m going to be using a USRP2 outdoors in the
shade (not direct sunlight) for around six hours in Yuma, Arizona, where
the daytime temperatures are 100-110 degrees F now in July. Will the
USRP2 be able to operate under these high temperatures?

Check it out:

6

If you can stand the temperature, your usrp should be fine.

Matt

Steve M. [email protected] wrote:

I have the same problem – I’m going to be using a USRP2 outdoors in the
shade (not direct sunlight) for around six hours in Yuma, Arizona, where
the daytime temperatures are 100-110 degrees F now in July. Will the
USRP2 be able to operate under these high temperatures?

Check it out:

— On Thu, 6/30/11, Feng Andrew Ge [email protected] wrote:

continuously at a temperature above 105 F? Your

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7

If you can stand the temperature, your usrp should be fine.

Matt

The only additional remark I’ll make is that higher temperatures do a
couple of things in the analog section of any receiver:

  o The LNA gain will be somewhat lower (perhaps as much as 0.2dB or

so)
o The LNA noise temperature will be higher, perhaps by as much as
15K or so

Crystal oscillators generally wander all over the place with
temperature, but the USRP2 uses, as I recall, a TCXO, so it should be no
worse than at room temperature.

–
Marcus L.
Principal Investigator
Shirleys Bay Radio Astronomy Consortium