@gnu.org
Subject: [Discuss-gnuradio] RE: USRP + case = electrical short??
EXPLAINED
Out of curiosity, what generation USRP do you have? My Rev 3 board has
quite a lot of clearance on the TX-B side (1/4"ish- not measured)
Weber, Michael J. (US SSA) wrote:
>
> I have identified the c
fingers. :-)
Best,
Mike
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]
On Behalf Of Weber, Michael J. (US SSA)
Sent: Friday, March 02, 2007 11:58 AM
To: George Barrinuevo; Discuss-gnuradio@gnu.org
Subject: RE: [Discuss-gnuradio] USRP + case = electrical short??
George
2007 7:27 PM
To: Weber, Michael J. (US SSA)
Cc: gnuradio mailing list
Subject: Re: [Discuss-gnuradio] USRP 4 Questions
Weber, Michael J. (US SSA) wrote:
> Eric, I also recently received some enclosures... this is my two
> cents, YMMV, etc:
>
> If the fan is installed such that it blow
Eric, I also recently received some enclosures... this is my two cents,
YMMV, etc:
If the fan is installed such that it blows in onto the USRP, it will
receive the direct benefit of the airflow. However, the fan makes a lot
of noise in this configuration because the blades are right next to the
pe
asier solution to this problem?
Thanks,
--- "Weber, Michael J. (US SSA)"
<[EMAIL PROTECTED]> wrote:
> Hello,
>
> I have a USRP with an RFX2400 mounted on the A side and a FLEX900
> mounted on the B side. Everything works great UNTIL I connect the SMA
> jumpers from a TX
Hello,
I have a USRP with an RFX2400 mounted on the A side and a FLEX900
mounted on the B side. Everything works great UNTIL I connect the SMA
jumpers from a TX/RX port on either board to the case. When the
connection between the TX/RX ground and the case is made, a short
occurs, the regulator get
I know this is an old thread, but... I just had the same issue and found
one alternative.
If you are using two cables to connect a set of BasicTX and BasicRX
daughterboards, there is a simple workaround. Just replace the
definition of carrier_sensed(self) to "False" instead of
"self.rxpath.carrier
er 06, 2005 4:51 PM
> To: Weber, Michael J. (US SSA)
> Cc: discuss gnuradio
> Subject: Re: [Discuss-gnuradio] USRP Update
>
>
> Weber, Michael J. (US SSA) wrote:
> > Matt, can you elaborate on the 20MHz bandwidth figure for
> the Flex400
> > and give some
Matt, can you elaborate on the 20MHz bandwidth figure for the Flex400
and give some USRP application guidance? I have this "8MHz maximum
supportable bandwidth" figure in my head which I think came from the
sampling/decimation rates + USB2 throughput limitation discussed in the
USRP documentation..?
What is the recommended position of the USRP gain setting when using the
TVRX daughtercard?
Looking at the FFT plots, if the gain is maxed out it appears that the
signal drops about 13dB from center to edge, regardless of the bandwidth
of the decimated signal. I.E, if the signal is 640KHz wide, th
Has anyone done any work on creating some intelligent behaviors based on
the FFT outputs? I'm thinking of things like autotuning to new strong
signals, autoconfiguring demodulator bandwidths (wide or narrow FM, for
example), drawing a vertical indicator line in the plot to indicate
various things,
Steve, thanks for the link...
I think articles like these miss two big points:
1: Software does not cause RF interference (of the magnitude that
disrupts my neighbor's television... yes, I've seen the
video-card-as-AM-broadcast demos too...) It takes some hardware to cause
noticeable interference
Most wireless weather sensors transmit a half-second burst or so every
40-60 seconds around 433MHz... you can pick up a remote temp/humidity
sensor from Radio Shack if you or your neighbors don't have one already.
I've also seen wireless thermometer setups in Home Depot, Target,
K-mart, and the lik
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