Re: Best practice to power up USRP

On Wed, 2010-10-27 at 15:08 +1100, Matt R. wrote:
Thanks Matt, I can relax now!

Cheers,
Matt

On
27/10/10 2:57 PM, Matt E. wrote:

On 10/26/2010 08:35 PM, Matt R. wrote:

Hi all,

Since there
is no power switch on the USRP itself, I would like to know

what the safest way to power on the device is? Is it
best to leave the

DC plug inserted into the unit, and power on the unit by switching on
power to the
switchmode supply? Or is it safe to remove and insert the

DC plug into the front of the unit as needed?

Thanks,

Matt

It doesn’t matter.

Matt

Hello

I would connect to Matt’s question to ask
about ground loops.
Sometimes, when the USRP is connected to the antenna outside and I
insert the DC plug, I see
sparkles on the ground shield of the plug, when it touches the
enclosure.

I decided to connect the PC and other
devices to a common GND, but I don’t see any way to ground the USRP box.
Would you recommend to create a external GND
connection point on the USRP enclosure?

Thanks
Alberto

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On 10/27/2010 01:35 PM, Alberto T. wrote:

Thanks
Alberto

The power supply is isolated. The shield on your coax is connected to
the USRP ground.

Matt

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