UmTRX

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189 discussions

Debug port configuration
by Craig Reading 24 Feb '13

24 Feb '13

Hi, Can anybody confirm the USB debug serial port settings. I have downloaded the FTDI drivers and can connect. However I do not get any meaningful output. Based on the source code I assume the settings are: · baudrate = 115200 · stop bits = 1 · parity = none · flow-control = off Regards Craig

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Fwd: Re: UmTRX beta samples shipping address check
by joel yabut 22 Feb '13

22 Feb '13

---------- Forwarded message ---------- From: "Joel Yabut" <joel.yabut(a)gmail.com> Date: Feb 18, 2013 9:25 AM Subject: Re: UmTRX beta samples shipping address check To: "Alexander Chemeris" <alexander.chemeris(a)gmail.com> Cc: May i know the following specs 1. What is the tx and rx isolation of umtrx? 2. What is the power output in dbm of your umtrx? 3. How is the lna on the rx input and is an external lna and bpf recommended? 4. What is the main advantage of umtrx compared to usrp by ettus? Thanks! Joel Sent from my Ipad On Feb 15, 2013, at 7:23 PM, Alexander Chemeris < alexander.chemeris(a)gmail.com> wrote: > Ok, I'll ask to ship to this address. > > On Fri, Feb 15, 2013 at 11:41 AM, joel yabut <joel.yabut(a)gmail.com> wrote: >> ok. thanks.. >> if you can set this value and follow shipping instruction below to avoid any >> transhipment. >> cCan you just ship it straight to Manila, Philippines >> >> just declare it as PCB parts >> Joint Venture Sound light entertainment concepts, Inc. >> 2 scout rallos, quezon City >> MM, Philippines >> Attn: Louie Domingsil >> tel. 3742969 >> >> >> >> On Thu, Feb 14, 2013 at 11:17 PM, Alexander Chemeris >> <alexander.chemeris(a)gmail.com> wrote: >>> >>> Thanks. I think we'll set this value for this package as well if you >>> don't object. >>> >>> On Fri, Feb 15, 2013 at 11:05 AM, joel yabut <joel.yabut(a)gmail.com> wrote: >>>> ok. it seems fine. >>>> in the future, a 150 usd for the future. >>>> >>>> >>>> On Thu, Feb 14, 2013 at 10:59 PM, Alexander Chemeris >>>> <alexander.chemeris(a)gmail.com> wrote: >>>>> >>>>> Here is a packing list: >>>>> >>>>> * UmTRXv2, flashed and ready to use. >>>>> * Power supply, 12V/30W - >>>>> http://www.phihong.com/assets/pdf/PSAC30U.pdf >>>>> Note, that it comes without a 220V power cord. Make sure to prepare >>>>> one before you receive the UmTRX to be able to power it on >>>>> immediately. >>>>> * Converter cable from a Molex power connector to a standard round DC >>>>> connector. >>>>> * U.FL-to-SMA-F pigtail cables >>>>> * Two small antennas - one for Tx and one for Rx. >>>>> >>>>> Note, that for safe operation you'll need either a heatsink (external >>>>> HDD enclosures work well) or a fan. Otherwise you could overheat your >>>>> UmTRX during a long operation. >>>>> >>>>> On Fri, Feb 15, 2013 at 10:45 AM, joel yabut <joel.yabut(a)gmail.com> >>>>> wrote: >>>>>> What is included with the order? >>>>>> Does it include the cables for antenna and psu? >>>>>> >>>>>> >>>>>> On Thu, Feb 14, 2013 at 10:42 PM, joel yabut <joel.yabut(a)gmail.com> >>>>>> wrote: >>>>>>> >>>>>>> thanks!!! >>>>>>> in the future, can you declare lower value for shipping purposes? >>>>>>> >>>>>>> >>>>>>> On Thu, Feb 14, 2013 at 10:26 PM, Alexander Chemeris >>>>>>> <alexander.chemeris(a)gmail.com> wrote: >>>>>>>> >>>>>>>> Ok, corrected. >>>>>>>> >>>>>>>> On Fri, Feb 15, 2013 at 8:01 AM, Joel Yabut <joel.yabut(a)gmail.com> >>>>>>>> wrote: >>>>>>>>> Just correct to Amazing speed.. >>>>>>>>> Thank you >>>>>>>>> >>>>>>>>> >>>>>>>>> Sent from my Ipad >>>>>>>>> >>>>>>>>> On Feb 15, 2013, at 4:18 AM, Alexander Chemeris >>>>>>>>> <alexander.chemeris(a)gmail.com> wrote: >>>>>>>>> >>>>>>>>>> Hi Joel, >>>>>>>>>> >>>>>>>>>> We're ready to ship UmTRX beta samples to our first customers >>>>>>>>>> and >>>>>>>>>> we >>>>>>>>>> want to check that your shipping address is correct: >>>>>>>>>> >>>>>>>>>> Jose Q. Yabut >>>>>>>>>> AMAZIN SPEED INTL LTD >>>>>>>>>> K1 4FL NORTH TWR KWAI SHUN IND CTR >>>>>>>>>> 51-63 CONTAINER PORT ROAD >>>>>>>>>> Hong Kong >>>>>>>>>> 85293354413 >>>>>>>>>> >>>>>>>>>> We apologize for the delay with the production. We've made all >>>>>>>>>> we >>>>>>>>>> could to solve the issue quickly and ensure the quality of the >>>>>>>>>> further >>>>>>>>>> production at the same time. We appreciate your patience and >>>>>>>>>> looking >>>>>>>>>> forward to your feedback when you receive your UmTRX! >>>>>>>>>> >>>>>>>>>> PS T-shirts will be sent as a separate package from our >>>>>>>>>> headquarter >>>>>>>>>> in >>>>>>>>>> Moscow, so expect two tracking numbers. >>>>>>>>>> >>>>>>>>>> -- >>>>>>>>>> Regards, >>>>>>>>>> Alexander Chemeris. >>>>>>>>>> CEO, Fairwaves LLC / ООО УмРадио >>>>>>>>>> http://fairwaves.ru >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> -- >>>>>>>> Regards, >>>>>>>> Alexander Chemeris. >>>>>>>> CEO, Fairwaves LLC / ООО УмРадио >>>>>>>> http://fairwaves.ru >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> -- >>>>>>> Mother Ignacia Avenue corner Scout Rallos St. >>>>>>> Quezon City, Metro Manila, Philippines >>>>>>> >>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> Mother Ignacia Avenue corner Scout Rallos St. >>>>>> Quezon City, Metro Manila, Philippines >>>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> Regards, >>>>> Alexander Chemeris. >>>>> CEO, Fairwaves LLC / ООО УмРадио >>>>> http://fairwaves.ru >>>> >>>> >>>> >>>> >>>> -- >>>> Mother Ignacia Avenue corner Scout Rallos St. >>>> Quezon City, Metro Manila, Philippines >>>> >>> >>> >>> >>> -- >>> Regards, >>> Alexander Chemeris. >>> CEO, Fairwaves LLC / ООО УмРадио >>> http://fairwaves.ru >> >> >> >> >> -- >> Mother Ignacia Avenue corner Scout Rallos St. >> Quezon City, Metro Manila, Philippines >> > > > > -- > Regards, > Alexander Chemeris. > CEO, Fairwaves LLC / ООО УмРадио > http://fairwaves.ru

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LMS RX PLL questions
by Sylvain Munaut 07 Feb '13

07 Feb '13

Hi, I have a couple questions about the RX PLL in the LMS chip: - What are the various LOBUF for ? (1/2/3). Do they correspond the the 3 input of the RX side ? I see they're controlled by the SELOUT bits, but I have no idea how to choose. Should it be matched to LNASEL_RXFE ? - What's the expected levels of the LO harmonics ? In my tests I see to measure around -10 dB for 3xLO and ~ -22 dB for 5x LO. Is there any way to improve this ? The method I used to measure is to feed 400 MHz narrow bw signal to the input. Tune LMS to 400 MHz and measure the received strength, then change the signal generator to TX a signal at 1.2 GHz and measure again, then at 2GHz, and so on ... Cheers, Sylvain

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MAC address range for UmTRX has been assigned
by Alexander Chemeris 03 Feb '13

03 Feb '13

Hi all, A one more bit of good news - we've been assigned with a range of MAC addresses we could use for UmTRX's. Many thanks for Openmoko Inc and Harald Welte for generously offering this service to open-source hardware projects for free! Now we have to setup a procedure to make sure all UmTRX's get out of the fab with unique MAC addresses. ---------- Forwarded message ---------- From: Harald Welte <laforge(a)gnumonks.org> Date: Mon, Feb 4, 2013 at 1:04 AM Subject: Re: Request for the OUI range for UmTRX board To: Alexander Chemeris <alexander.chemeris(a)gmail.com> Hi Alexander. 00-1F-11-02-19-00 to 00-1F-11-02-28-ff see http://wiki.openmoko.org/wiki/OUI#MAC_addresses Regards, Harald On Mon, Feb 04, 2013 at 12:08:45AM +0400, Alexander Chemeris wrote: > Hi, > > I'd like to request a range of 0xfff MAC addresses for the use with > UmTRX boards. > > Project information > ============== > > Name: UmTRX > Short description: UmTRX is a dual-channel wide-band SDR transceiver > with 1GbE connection. > Software License: GPLv3 > Hardware License: CC BY-SA 3.0 > Link: https://code.google.com/p/umtrx/ > Number of MAC addresses: 0xfff > > -- > Regards, > Alexander Chemeris. > CEO, Fairwaves LLC / ООО УмРадио > http://fairwaves.ru -- - Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6) -- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ООО УмРадио http://fairwaves.ru

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Dual-channel support on UmTRX
by Alexander Chemeris 03 Feb '13

03 Feb '13

Hi all, Just to let everyone know - in addition to working on manufacturing issues we're improving our UmTRX firmware and software support right now. And today we've got dual-channel finally working. Thanks to Andrew Karpenkov for his awesome work on implementing the second channel support in FPGA! I plan to push the pre-built FPGA image to the download area in the during the weekend and Andrew will publish the FPGA code changes soon too. What's ahead of us is to teach OpenBTS to use the second channel of UmTRX. This includes support of two independent channels and then implementation of switched diversity receive. -- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ООО УмРадио http://fairwaves.ru

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UmTRX/LMS6002D specific GUI for GnuRadio
by Alexander Chemeris 28 Jan '13

28 Jan '13

Hi all, For the purpose of tuning our Rx performance I've started putting together an UmTRX specific GUI for GnuRadio. Source code is published on github and will be gradually developed there. As usual, patches and improvements are welcome: https://github.com/chemeris/umtrx_scripts GUI === GUI code is located at 'gui' directory. At this moment it is very basic and has FFT, waterfall and scope views together with a minimal set of controls for the Rx side of LMS6002D. Type './umtrx_fft.py --help' to get a list of command-line options. Note, that you have to select Rx channel from the command line. If you want to run an LMS control GUI without spectrum display you could run './lms_ctrl_panel.py' from 'python_lib' directory. Screenshots are attached: umtrx_fft.png - FFT view (default) umtrx_fft_waterfall.png - Waterfall view umtrx_ctrl_panel.png Library ===== Our Python library is under the 'python_lib' directory. It consists of three parts: * umtrx_ctrl.py - Base library which defines primitives for LMS SPI control and UmTRX network discovery. It is pretty well abstracted, so you cuold replace it with your own implementation if you want to talk to some other board with LMS6002D chip, e.g. MyriadRF. * umtrx_lms.py - library which implements all our LMS control logic. * lms_ctrl_panel.py - implementation of the LMS control panel. Also could be used as a standalone control app for LMS. -- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ООО УмРадио http://fairwaves.ru

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Building firmware
by stephane＠shimaore.net 22 Jan '13

22 Jan '13

Hi, While I'm waiting for my umtrx to show up, I'm following the "let's play newbie" route and trying to use the instructions on https://code.google.com/p/umtrx/wiki/BuildingUHD I got stuck for a short while on step #2. It would probably be useful to add at the beginning of step 2 something like: git clone git://github.com/chemeris/UHD-Fairwaves.git Also I see the FPGA instructions use ISE 14.2, should I download that version rather than the more recent one (14.4) on Xilinx' site? Finally, is the Ethernet flashing going to work off-the-box on the beta umtrx or is it better I buy a JTAG cable? In that later case is the Digilent HS-1 the recommended cable? S.

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Re: UmTRX housing
by Andrey Sviyazov 19 Jan '13

19 Jan '13

Hi all. Sorry, I confused thread, so I repeat it here. How about this housing<https://www.elfa.se/elfa3~eu_en/elfa/init.do?item=50-561-49&toc=0&q=431621> for lab users ? It looks good and can easy dissipate power from UmTRX + UmSEL. Also I like housing from Tecnoal comp <http://www.tecnoal.it/>. On my experience quality stable and price is not expensive. For indoor BTS 1 W we can use some of this<http://www.tecnoal.it/heatsinks-c-profiles-series_ctg1_5_eng_2.asp>, for example C180 <http://www.tecnoal.it/cgi-bin/pdf_disegno/C180.pdf>. For BTS 2x10 W no idea except own design of extruded heatsink. Housing assembly should meet IP65 (waterproof) requirements. Best regards, Andrey Sviyazov.

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UmTRX beta aka Limited Edition sales start!
by Alexander Chemeris 15 Dec '12

15 Dec '12

Dear all, We want to make a Christmas gift for the community and it's my pleasure to announce the start of sales of UmTRXv2 beta samples aka Limited Edition. What is UmTRX? ============== UmTRX is an SDR transceiver, which we, Fairwaves, developed specifically for OpenBTS. It's similar to USRPs, but is heavily modified to be the best hardware for OpenBTS. More details are available at the project web-site: https://code.google.com/p/umtrx/ Ordering and Shipping ===================== To claim your UmTRXv2 Limited Edition, please fill in this form: https://docs.google.com/spreadsheet/viewform?formkey=dGVHNlNDaXVoSHp2eC1EcV… You will receive a payment link shortly after we receive your answer. The shipping cost will be estimated when we have everything ready for shipping, we'll contact you again by then. There are only 14 units in this Limited Edition batch, so we allow you to claim only 1 or 2 units. The base price for a UmTRX is $1500 just as we promised. Since we are relying on your support to fund further development, we encourage you to donate an additional amount. You donations are critical for us to produce the best ever hardware for OpenBTS. The 5 highest pledgers will become the proud owners of UmTRX Serial Numbers 1 through 5 and will be recognized on the UmTRX project site. Shipping will be from Paris, France with FedEx or some other express carrier. We plan to ship as soon as we receive orders for all 14 units, so the shipping date is not fixed yet. We'll contact you when we fix it. What does "beta" mean? ====================== Hardware is fully functional, as far as we could tell. There may be further improvements in quality, but in its current form it works smoothly for laboratory testing. Software is what makes it "beta": * Only 1st channel is supported in the software at this moment. * Not all LMS6002D controls are properly integrated into the software. * Safe/production bitstreams switching is not working in the FPGA yet. * Result of the TCXO frequency synchronization from GPS is not stored to EEPROM. * I/Q imbalance and DC leakage calibration are not automatic. We accept patches to fix these and other issues. You participation will make the stable release closer. ;) The software is based on UHD from Etttus Research, so if you're familiar with it, it'll be easy for you to get into. UmTRXv2 package contents ======================== * UmTRXv2, flashed and ready to use. * Power supply, 12V/30W - http://www.phihong.com/assets/pdf/PSAC30U.pdf Note, that it comes without a 220V power cord. Make sure to prepare one before you receive the UmTRX to be able to power it on immediately. ;) * Converter cable from a Molex power connector to a standard round DC connector. * U.FL-to-SMA-F pigtail cables * Two small antennas - one for Tx and one for Rx. * An Open-Source Telecom T-shirt! (see the picture attached) Feedback ======= Do not hesitate to contact us if you have any questions, suggestion or comment. We love your feedback! -- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ООО УмРадио http://fairwaves.ru

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Burst start/end phase error
by Thomas Tsou 14 Dec '12

14 Dec '12

Hi Alexander, Please try the last commit at git://github.com/ttsou/openbts-p2.8.git laurent I tested with 4 samples per symbol as we did in the past. Reducing the start/end phase error involved adding bits so that there is no partial phase transition to/from nothing. We then zero out the excess bits with a simple power mask. Thomas

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