RE: Max temperature for usrp2

The length of cable would have to be 100 ft; my signal becomes
attenuated excessively.

Thanks,
eric

The brute-force method to answering your question is probably to look at
the
operating temperature ranges in the datasheets for the major cmoponents.
A
few things come to mind: the SD card (one of the cheaper components, I
suspect), the ethernet cable, and the resistors. These all might start
misbehaving at those temperatures. Could you keep the USRP in something
like
a styroam cooler with ice on the bottom?

Jordan

few things come to mind: the SD card (one of the cheaper components, I
suspect), the ethernet cable, and the resistors.

You could try using a SanDisk Extreme III SD card. They’re engineered
for rough environments; their web site has photos recovered from one
that went up for days in an untethered weather balloon and was then
recovered from the ocean. Another (CF card in that case) was found in
the remains of a news camera that was “too close” to a controlled
demolition of a bridge. Some great shots of flying debris heading
straight for the camera! (Can’t find that URL just now…)

John

Jordan J Riggs wrote:

The brute-force method to answering your question is probably to look at
the operating temperature ranges in the datasheets for the major
cmoponents. A few things come to mind: the SD card (one of the cheaper
components, I suspect), the ethernet cable, and the resistors. These all
might start misbehaving at those temperatures. Could you keep the USRP
in something like a styroam cooler with ice on the bottom?

The SD card should still work at that temp, but even if it doesn’t, the
SD is only used at power up to boot the FPGA.

Matt

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