Alex,
On Thu, Feb 20, 2014 at 11:33 AM, alex korolev <nik135(a)mail.ru> wrote:
> When i exec 'tx_waveforms.exe --wave-type SINE --wave-freq=100000
> --freq=300000000 --rate 1000000 --bw 20000 --ampl 0.7' I get a sine wave at
> the desired frequency, but it have a jitter.
> It is a normal behavior?
Most likely this is fine. Check spectrum picture with a spectrum
analyzer to see if there is any noise which might cause this.
> The little jpeg attached :-)
It's an avi, not a jpeg ;)
> ps. I have not found information on calibration,
> tell me how to make sure that the device is calibrated??
We're preparing a short manual about the calibration. Skilled and
impatient could refer to the LMS6002D calibration guide for details.
--
Regards,
Alexander Chemeris.
CEO, Fairwaves LLC / ООО УмРадио
http://fairwaves.ru
Hello
i installed all the package of openBTS and it was working properly, but
last time i take the server and connect the Umtrx module, the ping command
work properly, uhd_find_devices also work but i have this masseage: transceiver
; no process found... and after a long message comes telling me that the
network is unreachable. Just last week all this was working properly.
Can someone tell me ho to fix it please? or do i need to flash again the
module Umtrx?
Hello
i installed all the package of openBTS and it was working properly, but
last time i take the server and connect the Umtrx module, the ping command
work properly, uhd_find_devices also work but i have this masseage: transceiver
; no process found... and after a long message comes telling me that the
network is unreachable. Just last week all this was working properly.
Can someone tell me ho to fix it please? or do i need to flash again the
module Umtrx?
*Manoel Aposaz.*
*The limite of our Greatest achievement will depend on the depth of our
imagination and our relation with God.*
Tel : 77 113 24 83.
Kleiv...
Hi. Since link2voip.com went kaput, I've been without a SIP trunking
provider. Does anyone have any recommendations?
I'd prefer a pay-as-you-go service over one with a monthly fee, since I use
it sporadically for development.
Thanks,
Robin
Hello, All!
1. I'm also (as Andrew Back) interested about calibration methods, but I can not find calibration technology description.
How i can calibate device?
2. test_pps_input program failed with message:
Using Device: Single USRP:
Device: UmTRX Device
Mboard 0: UMTRX-REV0
RX Channel: 0
RX DSP: 0
RX Dboard: A
RX Subdev: LMS6002D (0xfa07) - 0
TX Channel: 0
TX DSP: 0
TX Dboard: A
TX Subdev: LMS6002D (0xfa09) - 0
Attempt to detect the PPS and set the time...
-- 1) catch time transition at pps edge
Error: RuntimeError: Board 0 may not be getting a PPS signal!
No PPS detected within the time interval.
See the application notes for your device.
Where i can get information about pps signal state and gps lock? (from device)
3. I found that eob (end of burst) metadata does not work, signal at spectrum analyzer is present, after sendind eob.
How i can mute tx?
thanks for answers ! :-)
С уважением,
alex korolev
nik135(a)mail.ru
