From nik135 at mail.ru Tue Feb 4 11:57:04 2014 From: nik135 at mail.ru (=?UTF-8?B?YWxleCBrb3JvbGV2?=) Date: Tue, 04 Feb 2014 15:57:04 +0400 Subject: =?UTF-8?B?dGN4byBjYWxpYnJhdGlvbiAvIHBwcyBzaWduYWwgY2F0Y2ggcHJvYmxlbSAv?= =?UTF-8?B?IGVuZCBvZiBidXJzdCBkb2VzIG5vdCB3b3Jr?= Message-ID: <1391515024.369916946@f123.i.mail.ru> 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 ! :-) ? ?????????, alex korolev nik135 at mail.ru -------------- next part -------------- An HTML attachment was scrubbed... URL: From coxe at close-haul.com Mon Feb 10 02:11:17 2014 From: coxe at close-haul.com (Robin Coxe) Date: Sun, 9 Feb 2014 21:11:17 -0500 Subject: SIP trunking provider recommendation? Message-ID: 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 -------------- next part -------------- An HTML attachment was scrubbed... URL: From goorbatchev at gmail.com Mon Feb 10 08:20:51 2014 From: goorbatchev at gmail.com (Manoel Aposaz) Date: Mon, 10 Feb 2014 08:20:51 +0000 Subject: transceiver : no process found Message-ID: 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... -------------- next part -------------- An HTML attachment was scrubbed... URL: From goorbatchev at gmail.com Tue Feb 11 08:13:21 2014 From: goorbatchev at gmail.com (Manoel Aposaz) Date: Tue, 11 Feb 2014 09:13:21 +0100 Subject: no process found Message-ID: 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? -------------- next part -------------- An HTML attachment was scrubbed... URL: From alexander.chemeris at gmail.com Thu Feb 20 10:04:36 2014 From: alexander.chemeris at gmail.com (Alexander Chemeris) Date: Thu, 20 Feb 2014 14:04:36 +0400 Subject: tx signal jitter In-Reply-To: <1392881609.92001740@f436.i.mail.ru> References: <1392881609.92001740@f436.i.mail.ru> Message-ID: Alex, On Thu, Feb 20, 2014 at 11:33 AM, alex korolev 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 / ??? ??????? http://fairwaves.ru