Matt,
Coupling problem solved. Doh! -45 dBm is *way* too low; only the very
low order A/D bits were toggling. When I put in something closer to +10
dBm I get a nice strong signal and the image on the other port of the
same daughtercard is down about 60 dB. I can't measure the crosstalk
from one da
Pascal,
Thanks for the tip, I'll add that to version 0.2. I can tell that you are much less "linux impaired" than I!
Best regards,
Mark SullivanOn 9/26/06, Pascal Charest <[EMAIL PROTECTED]> wrote:
On 9/22/06, Mark Sullivan <[EMAIL PROTECTED]
> wrote:
(...)
INSTALLING SDCC
Log on to your accou
On 9/22/06, Mark Sullivan <[EMAIL PROTECTED]> wrote:
(...)
INSTALLING SDCC
Log on to your account (not root).
You need to install the SDCC package. Get the source tarball from Sourceforge at
http://sourceforge.net/project/showfiles.php?group_id=599.
(it will be called "sdcc-src-2.6.0.tar.gz" unle
Eric,
As an additional experiment I hacked multi_file.py in the multi-antenna
folder so that the multiplexor was set to channel 0 for all four "I"
inputs; with a carrier injected into channel 1, I saw identical
leakage. I then changed the mux setting to channel 1 for all "I" and
saw the injected c
Mark Sullivan wrote:
When I inject a signal at a -45 dBm level on the "RX-B" sma connector
on a Basic RX daughtercard, I see a copy of the signal on the "RX-A"
side when I use usrp_fft.py. The level is 10-20 dB below that of what
I see if I move the signal from "RX-B" to "RX-A," but this seems
On Fri, Sep 22, 2006 at 05:38:54PM -0400, Mark Sullivan wrote:
> When I inject a signal at a -45 dBm level on the "RX-B" sma connector on a
> Basic RX daughtercard, I see a copy of the signal on the "RX-A" side when I
> use usrp_fft.py. The level is 10-20 dB below that of what I see if I move
> the
When I inject a signal at a -45 dBm level on the "RX-B" sma connector
on a Basic RX daughtercard, I see a copy of the signal on the "RX-A"
side when I use usrp_fft.py. The level is 10-20 dB below that of what I
see if I move the signal from "RX-B" to "RX-A," but this seems like too
much coupling. U
