From andreysviyaz at gmail.com Sun May 20 14:46:58 2012 From: andreysviyaz at gmail.com (Andrey Sviyazov) Date: Sun, 20 May 2012 16:46:58 +0200 Subject: UmTRX v1b coming soon Message-ID: Arrived to a place of relaxation and... started to work :( There are questions about EB-570: 1) Is it used somewhere? In the datasheet there is probable errors, for example, 1PPS is specified as input. 2) There are inputs Reset and Standby. The first can be left open, and the second is possible need to be connected to to FPGA. 3) There Is RTC_CLK_O we don't need him? And that there may be, 32768? 4) Which of two UART's better to use or are they equivalent? There are no any words in datasheet about it. 5) Unfortunately no place for both on PCB and we can use either EB-230 or EB-570. Best regards, Andrey Sviyazov. -------------- next part -------------- An HTML attachment was scrubbed... URL: From alexander.chemeris at gmail.com Mon May 21 10:15:59 2012 From: alexander.chemeris at gmail.com (Alexander Chemeris) Date: Mon, 21 May 2012 14:15:59 +0400 Subject: UmTRX v1b coming soon In-Reply-To: References: Message-ID: Andrey, On Sun, May 20, 2012 at 6:46 PM, Andrey Sviyazov wrote: > 1) Is it used somewhere? In the datasheet there is probable errors, for > example, 1PPS is specified as input. Use this datasheet, here it's marked as output: http://www.transystem.com.tw/product/66/EB-570%20Data%20Sheet%20V1.4.pdf Probably you have an older version of the datasheet. > 2) There are inputs Reset and Standby. The first can be left open, and the > second is possible need to be connected to to FPGA. Yes. > 3) There Is RTC_CLK_O we don't need him? And that there may be, 32768? Could you route it to a test-point or a 2-pin IDC? I don't think we need this, but it's better to have an ability to access it. > 4) Which of two UART's better to use or are they equivalent? There are no > any words in datasheet about it. Use TX0/RX0 (pins 13/14), which is default to NMEA - see the datasheet above. > 5) Unfortunately no place for both on PCB and we can use either EB-230 or > EB-570. Then we have to use EB-570. -- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ??? ??????? http://fairwaves.ru From andreysviyaz at gmail.com Tue May 29 02:02:06 2012 From: andreysviyaz at gmail.com (Andrey Sviyazov) Date: Tue, 29 May 2012 04:02:06 +0200 Subject: UmTRX v1b coming soon In-Reply-To: References: Message-ID: Hi all. First release of UmTRXv1b seems finished. All suggestions and issues are welcomed, especially prior to production (few days). There are 4 Rx inputs to implement either scan function or software diversity receiving. There are 16pin connector to supply and control external preselector, amplifier, LNA, ATT, diversity switch... This new release have 2U size (100x160mm) that more universal for indoor housing to put together several UmTRX's with PC and power supply modules in one rack. Also possible variant to meet to requirements -40C and it is the only one reason to keep OCVCXO onboard. Also possible variant with external control panel to make easily IP65 housing design. Also DC supply voltage can be in range 8..28V to keep single DC supply if UmTRX will combined with IP65 tower mounted amplifiers. And so on depend of your fantasy :) Here included some project files and BOM for variant with 20dBm Tx and onboard control. PCB and PDF files will be in the next two e-mails. Best regards, Andrey Sviyazov. 2012/5/21 Alexander Chemeris > Andrey, > > On Sun, May 20, 2012 at 6:46 PM, Andrey Sviyazov > wrote: > > 1) Is it used somewhere? In the datasheet there is probable errors, for > > example, 1PPS is specified as input. > > Use this datasheet, here it's marked as output: > http://www.transystem.com.tw/product/66/EB-570%20Data%20Sheet%20V1.4.pdf > Probably you have an older version of the datasheet. > > > 2) There are inputs Reset and Standby. The first can be left open, and > the > > second is possible need to be connected to to FPGA. > > Yes. > > > 3) There Is RTC_CLK_O we don't need him? And that there may be, 32768? > > Could you route it to a test-point or a 2-pin IDC? I don't think we > need this, but it's better to have an ability to access it. > > > 4) Which of two UART's better to use or are they equivalent? There are no > > any words in datasheet about it. > > Use TX0/RX0 (pins 13/14), which is default to NMEA - see the datasheet > above. > > > 5) Unfortunately no place for both on PCB and we can use either EB-230 or > > EB-570. > > Then we have to use EB-570. > > > -- > Regards, > Alexander Chemeris. > CEO, Fairwaves LLC / ??? ??????? > http://fairwaves.ru > -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: UmTRXv1b_prj (29.05.2012 2-59-49).zip Type: application/zip Size: 1478450 bytes Desc: not available URL: From andreysviyaz at gmail.com Tue May 29 02:05:53 2012 From: andreysviyaz at gmail.com (Andrey Sviyazov) Date: Tue, 29 May 2012 04:05:53 +0200 Subject: UmTRX v1b coming soon In-Reply-To: References:

Message-ID: Here PCB file of project. Best regards, Andrey Sviyazov. 2012/5/29 Andrey Sviyazov > Hi all. > > First release of UmTRXv1b seems finished. > All suggestions and issues are welcomed, especially prior to production > (few days). > There are 4 Rx inputs to implement either scan function or software > diversity receiving. > There are 16pin connector to supply and control external preselector, > amplifier, LNA, ATT, diversity switch... > This new release have 2U size (100x160mm) that more universal for indoor > housing to put together several UmTRX's with PC and power supply modules in > one rack. > Also possible variant to meet to requirements -40C and it is the only one > reason to keep OCVCXO onboard. > Also possible variant with external control panel to make easily IP65 > housing design. > Also DC supply voltage can be in range 8..28V to keep single DC supply if > UmTRX will combined with IP65 tower mounted amplifiers. > > And so on depend of your fantasy :) > > Here included some project files and BOM for variant with 20dBm Tx and > onboard control. > PCB and PDF files will be in the next two e-mails. > > Best regards, > Andrey Sviyazov. > > > > 2012/5/21 Alexander Chemeris > >> Andrey, >> >> On Sun, May 20, 2012 at 6:46 PM, Andrey Sviyazov >> wrote: >> > 1) Is it used somewhere? In the datasheet there is probable errors, for >> > example, 1PPS is specified as input. >> >> Use this datasheet, here it's marked as output: >> http://www.transystem.com.tw/product/66/EB-570%20Data%20Sheet%20V1.4.pdf >> Probably you have an older version of the datasheet. >> >> > 2) There are inputs Reset and Standby. The first can be left open, and >> the >> > second is possible need to be connected to to FPGA. >> >> Yes. >> >> > 3) There Is RTC_CLK_O we don't need him? And that there may be, 32768? >> >> Could you route it to a test-point or a 2-pin IDC? I don't think we >> need this, but it's better to have an ability to access it. >> >> > 4) Which of two UART's better to use or are they equivalent? There are >> no >> > any words in datasheet about it. >> >> Use TX0/RX0 (pins 13/14), which is default to NMEA - see the datasheet >> above. >> >> > 5) Unfortunately no place for both on PCB and we can use either EB-230 >> or >> > EB-570. >> >> Then we have to use EB-570. >> >> >> -- >> Regards, >> Alexander Chemeris. >> CEO, Fairwaves LLC / ??? ??????? >> http://fairwaves.ru >> > > -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: UmTRXv1b_pcb (29.05.2012 2-51-20).zip Type: application/zip Size: 5044180 bytes Desc: not available URL: From andreysviyaz at gmail.com Tue May 29 02:07:35 2012 From: andreysviyaz at gmail.com (Andrey Sviyazov) Date: Tue, 29 May 2012 04:07:35 +0200 Subject: UmTRX v1b coming soon In-Reply-To: References:

Message-ID: Here PDF's Best regards, Andrey Sviyazov. 2012/5/29 Andrey Sviyazov > Here PCB file of project. > > Best regards, > Andrey Sviyazov. > > > > 2012/5/29 Andrey Sviyazov > >> Hi all. >> >> First release of UmTRXv1b seems finished. >> All suggestions and issues are welcomed, especially prior to production >> (few days). >> There are 4 Rx inputs to implement either scan function or software >> diversity receiving. >> There are 16pin connector to supply and control external preselector, >> amplifier, LNA, ATT, diversity switch... >> This new release have 2U size (100x160mm) that more universal for indoor >> housing to put together several UmTRX's with PC and power supply modules in >> one rack. >> Also possible variant to meet to requirements -40C and it is the only one >> reason to keep OCVCXO onboard. >> Also possible variant with external control panel to make easily IP65 >> housing design. >> Also DC supply voltage can be in range 8..28V to keep single DC supply if >> UmTRX will combined with IP65 tower mounted amplifiers. >> >> And so on depend of your fantasy :) >> >> Here included some project files and BOM for variant with 20dBm Tx and >> onboard control. >> PCB and PDF files will be in the next two e-mails. >> >> Best regards, >> Andrey Sviyazov. >> >> >> >> 2012/5/21 Alexander Chemeris >> >>> Andrey, >>> >>> On Sun, May 20, 2012 at 6:46 PM, Andrey Sviyazov >>> wrote: >>> > 1) Is it used somewhere? In the datasheet there is probable errors, for >>> > example, 1PPS is specified as input. >>> >>> Use this datasheet, here it's marked as output: >>> http://www.transystem.com.tw/product/66/EB-570%20Data%20Sheet%20V1.4.pdf >>> Probably you have an older version of the datasheet. >>> >>> > 2) There are inputs Reset and Standby. The first can be left open, and >>> the >>> > second is possible need to be connected to to FPGA. >>> >>> Yes. >>> >>> > 3) There Is RTC_CLK_O we don't need him? And that there may be, 32768? >>> >>> Could you route it to a test-point or a 2-pin IDC? I don't think we >>> need this, but it's better to have an ability to access it. >>> >>> > 4) Which of two UART's better to use or are they equivalent? There are >>> no >>> > any words in datasheet about it. >>> >>> Use TX0/RX0 (pins 13/14), which is default to NMEA - see the datasheet >>> above. >>> >>> > 5) Unfortunately no place for both on PCB and we can use either EB-230 >>> or >>> > EB-570. >>> >>> Then we have to use EB-570. >>> >>> >>> -- >>> Regards, >>> Alexander Chemeris. >>> CEO, Fairwaves LLC / ??? ??????? >>> http://fairwaves.ru >>> >> >> > -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: PDF_out.zip Type: application/zip Size: 1721988 bytes Desc: not available URL: From coxe at close-haul.com Tue May 29 12:05:23 2012 From: coxe at close-haul.com (Robin Coxe) Date: Tue, 29 May 2012 08:05:23 -0400 Subject: UmTRX v1b coming soon In-Reply-To: References: Message-ID: Hi Andrey. Nice work. Is there is big list of all of the changes that have been incorporated into the new design? This change record would be very helpful. A minor English language note to avoid unintentional bad puns-- you might not want to have a filename with "ass" in it. Perhaps just spell out "assembly"? ;) -Robin On Mon, May 28, 2012 at 10:13 PM, Andrey Sviyazov wrote: > Hi all. > > Sorry Robin and Sylvain, I did not check CC first time. > Here project files and my small explanation for you. > > First release of UmTRXv1b seems finished. > All suggestions and issues are welcomed, especially prior to production (few > days). > There are 4 Rx inputs to implement either scan function or software > diversity receiving. > There are 16pin connector to supply and control external preselector, > amplifier, LNA, ATT, diversity switch... > This new release have 2U size (100x160mm) that more universal for indoor > housing to put together several UmTRX's with PC and power supply modules in > one rack. > Also possible variant to meet to requirements -40C and it is the only one > reason to keep OCVCXO onboard. > Also possible variant with external control panel to make easily IP65 > housing design. > Also DC supply voltage can be in range 8..28V to keep single DC supply if > UmTRX will combined with IP65 tower mounted amplifiers. > > And so on depend of your fantasy :) > > Here included?some?project files and BOM for variant with 20dBm Tx and > onboard control. > PCB and PDF files will be in the next two e-mails. > > Best regards, > Andrey Sviyazov. > > > 2012/5/21 Alexander Chemeris >> >> Andrey, >> >> On Sun, May 20, 2012 at 6:46 PM, Andrey Sviyazov >> wrote: >> > 1) Is it used somewhere? In the datasheet there is probable errors, for >> > example, 1PPS is specified as input. >> >> Use this datasheet, here it's marked as output: >> http://www.transystem.com.tw/product/66/EB-570%20Data%20Sheet%20V1.4.pdf >> Probably you have an older version of the datasheet. >> >> > 2) There are inputs Reset and Standby. The first can be left open, and >> > the >> > second is possible need to be connected to to FPGA. >> >> Yes. >> >> > 3) There Is RTC_CLK_O we don't need him? And that there may be, 32768? >> >> Could you route it to a test-point or a 2-pin IDC? I don't think we >> need this, but it's better to have an ability to access it. >> >> > 4) Which of two UART's better to use or are they equivalent? There are >> > no >> > any words in datasheet about it. >> >> Use TX0/RX0 (pins 13/14), which is default to NMEA - see the datasheet >> above. >> >> > 5) Unfortunately no place for both on PCB and we can use either EB-230 >> > or >> > EB-570. >> >> Then we have to use EB-570. >> >> >> -- >> Regards, >> Alexander Chemeris. >> CEO, Fairwaves LLC / ??? ??????? >> http://fairwaves.ru > > -- Robin Coxe ?| ?Close-Haul Communications, Inc. ?| ?Boston, MA +1-617-470-8825 From andreysviyaz at gmail.com Tue May 29 13:37:41 2012 From: andreysviyaz at gmail.com (Andrey Sviyazov) Date: Tue, 29 May 2012 15:37:41 +0200 Subject: UmTRX v1b coming soon In-Reply-To: References:

Message-ID: Hi Robin! List of changes not yet ready (soon). And thank you for your help in English :) Best regards, Andrey Sviyazov. 2012/5/29 Robin Coxe > Hi Andrey. Nice work. Is there is big list of all of the changes > that have been incorporated into the new design? This change record > would be very helpful. > > A minor English language note to avoid unintentional bad puns-- you > might not want to have a filename with "ass" in it. Perhaps just > spell out "assembly"? ;) > > -Robin > > On Mon, May 28, 2012 at 10:13 PM, Andrey Sviyazov > wrote: > > Hi all. > > > > Sorry Robin and Sylvain, I did not check CC first time. > > Here project files and my small explanation for you. > > > > First release of UmTRXv1b seems finished. > > All suggestions and issues are welcomed, especially prior to production > (few > > days). > > There are 4 Rx inputs to implement either scan function or software > > diversity receiving. > > There are 16pin connector to supply and control external preselector, > > amplifier, LNA, ATT, diversity switch... > > This new release have 2U size (100x160mm) that more universal for indoor > > housing to put together several UmTRX's with PC and power supply modules > in > > one rack. > > Also possible variant to meet to requirements -40C and it is the only one > > reason to keep OCVCXO onboard. > > Also possible variant with external control panel to make easily IP65 > > housing design. > > Also DC supply voltage can be in range 8..28V to keep single DC supply if > > UmTRX will combined with IP65 tower mounted amplifiers. > > > > And so on depend of your fantasy :) > > > > Here included some project files and BOM for variant with 20dBm Tx and > > onboard control. > > PCB and PDF files will be in the next two e-mails. > > > > Best regards, > > Andrey Sviyazov. > > > > > > 2012/5/21 Alexander Chemeris > >> > >> Andrey, > >> > >> On Sun, May 20, 2012 at 6:46 PM, Andrey Sviyazov < > andreysviyaz at gmail.com> > >> wrote: > >> > 1) Is it used somewhere? In the datasheet there is probable errors, > for > >> > example, 1PPS is specified as input. > >> > >> Use this datasheet, here it's marked as output: > >> > http://www.transystem.com.tw/product/66/EB-570%20Data%20Sheet%20V1.4.pdf > >> Probably you have an older version of the datasheet. > >> > >> > 2) There are inputs Reset and Standby. The first can be left open, and > >> > the > >> > second is possible need to be connected to to FPGA. > >> > >> Yes. > >> > >> > 3) There Is RTC_CLK_O we don't need him? And that there may be, 32768? > >> > >> Could you route it to a test-point or a 2-pin IDC? I don't think we > >> need this, but it's better to have an ability to access it. > >> > >> > 4) Which of two UART's better to use or are they equivalent? There are > >> > no > >> > any words in datasheet about it. > >> > >> Use TX0/RX0 (pins 13/14), which is default to NMEA - see the datasheet > >> above. > >> > >> > 5) Unfortunately no place for both on PCB and we can use either EB-230 > >> > or > >> > EB-570. > >> > >> Then we have to use EB-570. > >> > >> > >> -- > >> Regards, > >> Alexander Chemeris. > >> CEO, Fairwaves LLC / ??? ??????? > >> http://fairwaves.ru > > > > > > > > -- > Robin Coxe | Close-Haul Communications, Inc. | Boston, MA > +1-617-470-8825 > -------------- next part -------------- An HTML attachment was scrubbed... URL: From andreysviyaz at gmail.com Tue May 29 17:59:35 2012 From: andreysviyaz at gmail.com (Andrey Sviyazov) Date: Tue, 29 May 2012 19:59:35 +0200 Subject: UmTRX v1b coming soon In-Reply-To: References:

Message-ID: Hi all. First of all, Alexander asked me to use UmTRXv2 instead of v1b, so project renamed and I'll send whole project later. Here "What new in UmTRXv2.txt" in addition to fixed of all known UmTRXv1a issues . Unfortunately, a lot physical changes between v1a and v2 and it is very difficult to me to explain all step-by-step in details. But I am ready to patiently answer for any kind of questions. Here also EEpromConfig.SchDoc and BOM files which changed because C298 should be Case-A (issue 18 ). Best regards, Andrey Sviyazov. 2012/5/29 Andrey Sviyazov > Here PDF's > > Best regards, > Andrey Sviyazov. > > > > 2012/5/29 Andrey Sviyazov > >> Here PCB file of project. >> >> Best regards, >> Andrey Sviyazov. >> >> >> >> 2012/5/29 Andrey Sviyazov >> >>> Hi all. >>> >>> First release of UmTRXv1b seems finished. >>> All suggestions and issues are welcomed, especially prior to production >>> (few days). >>> There are 4 Rx inputs to implement either scan function or software >>> diversity receiving. >>> There are 16pin connector to supply and control external preselector, >>> amplifier, LNA, ATT, diversity switch... >>> This new release have 2U size (100x160mm) that more universal for indoor >>> housing to put together several UmTRX's with PC and power supply modules in >>> one rack. >>> Also possible variant to meet to requirements -40C and it is the only >>> one reason to keep OCVCXO onboard. >>> Also possible variant with external control panel to make easily IP65 >>> housing design. >>> Also DC supply voltage can be in range 8..28V to keep single DC supply >>> if UmTRX will combined with IP65 tower mounted amplifiers. >>> >>> And so on depend of your fantasy :) >>> >>> Here included some project files and BOM for variant with 20dBm Tx and >>> onboard control. >>> PCB and PDF files will be in the next two e-mails. >>> >>> Best regards, >>> Andrey Sviyazov. >>> >>> >>> >>> 2012/5/21 Alexander Chemeris >>> >>>> Andrey, >>>> >>>> On Sun, May 20, 2012 at 6:46 PM, Andrey Sviyazov < >>>> andreysviyaz at gmail.com> wrote: >>>> > 1) Is it used somewhere? In the datasheet there is probable errors, >>>> for >>>> > example, 1PPS is specified as input. >>>> >>>> Use this datasheet, here it's marked as output: >>>> http://www.transystem.com.tw/product/66/EB-570%20Data%20Sheet%20V1.4.pdf >>>> Probably you have an older version of the datasheet. >>>> >>>> > 2) There are inputs Reset and Standby. The first can be left open, >>>> and the >>>> > second is possible need to be connected to to FPGA. >>>> >>>> Yes. >>>> >>>> > 3) There Is RTC_CLK_O we don't need him? And that there may be, 32768? >>>> >>>> Could you route it to a test-point or a 2-pin IDC? I don't think we >>>> need this, but it's better to have an ability to access it. >>>> >>>> > 4) Which of two UART's better to use or are they equivalent? There >>>> are no >>>> > any words in datasheet about it. >>>> >>>> Use TX0/RX0 (pins 13/14), which is default to NMEA - see the datasheet >>>> above. >>>> >>>> > 5) Unfortunately no place for both on PCB and we can use either >>>> EB-230 or >>>> > EB-570. >>>> >>>> Then we have to use EB-570. >>>> >>>> >>>> -- >>>> Regards, >>>> Alexander Chemeris. >>>> CEO, Fairwaves LLC / ??? ??????? >>>> http://fairwaves.ru >>>> >>> >>> >> > -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- What new in UmTRXv2 (in addition to fixed of all known issues). 1. New smaller PCB 2U size (100x160mm) helps to make housing much easily. 2. New EB-570 GPS module instead of EB-230. 3. Master/slave clock switching circuits work properly and through independed I/O connectors. 4. Protection devices for DC and all coax connectors has been added. 5. All components reconsidered to meet to industrial requirements -40`C for IP65 outdoor housing. 6. External control/LED panel can be used to make easily IP65 housing design. 7. Wider connector to supply and control external RF board with preselector, LNA, ATT, diversity switch... 8. Onboard +20dBm predriver for 0.4-2.5GHz band with ORL>16dB. 9. Debug clock can be used as high speed differential pair. 10. Thermal area added for hot IC's at bottom side to use 10x10mm thermal pads?to the heatsink instead of FAN's. -------------- next part -------------- A non-text attachment was scrubbed... Name: UmTRXv2 (29.05.2012 19-50-27).zip Type: application/zip Size: 169392 bytes Desc: not available URL: From jsn at bjtpartners.com Tue May 29 23:33:46 2012 From: jsn at bjtpartners.com (Jean-Samuel Najnudel - BJT PARTNERS SARL) Date: Wed, 30 May 2012 01:33:46 +0200 Subject: UmTRX v1b coming soon In-Reply-To: References:

Message-ID: Hi Andrey, Thank you for your e-mail. This is a great news. Great ideas, great debug, great improvements. Thanks a lot. The board looks fine but I will see in deeper details and let you know. A question just comes to my mind. 20 dBm Tx output is very convenient. This would allow to saturate and achieve a very good PA efficiency. This is really nice. In case Tx output is 20 dBm are you sure we would not have any PCB Tx signal leakage problems ? A few months ago, you told me maximum Tx power was around 0 dBm to avoid problems. Did you find a solution to improve isolation and allow the 20 dBm Tx power ? Anyway, thanks a lot. Again, the board seems to be really great. This would also bring a wonderful tool to the SDR, OpenBTS and OpenBSC communities. Thank you so much for this. Best regards. Jean-Samuel. :-) On Tue, May 29, 2012 at 7:59 PM, Andrey Sviyazov wrote: > Hi all. > > First of all, Alexander asked me to use UmTRXv2 instead of v1b, so project > renamed and I'll send whole project later. > Here "What new in UmTRXv2.txt" in addition to fixed of all known UmTRXv1a > issues > . > Unfortunately, a lot physical changes between v1a and v2 and it is very > difficult to me to explain all step-by-step in details. > But I am ready to patiently answer for any kind of questions. > Here also EEpromConfig.SchDoc and BOM files which changed because C298 > should be Case-A (issue 18 > ). > > Best regards, > Andrey Sviyazov. > > > > 2012/5/29 Andrey Sviyazov > >> Here PDF's >> >> Best regards, >> Andrey Sviyazov. >> >> >> >> 2012/5/29 Andrey Sviyazov >> >>> Here PCB file of project. >>> >>> Best regards, >>> Andrey Sviyazov. >>> >>> >>> >>> 2012/5/29 Andrey Sviyazov >>> >>>> Hi all. >>>> >>>> First release of UmTRXv1b seems finished. >>>> All suggestions and issues are welcomed, especially prior to production >>>> (few days). >>>> There are 4 Rx inputs to implement either scan function or software >>>> diversity receiving. >>>> There are 16pin connector to supply and control external preselector, >>>> amplifier, LNA, ATT, diversity switch... >>>> This new release have 2U size (100x160mm) that more universal for >>>> indoor housing to put together several UmTRX's with PC and power supply >>>> modules in one rack. >>>> Also possible variant to meet to requirements -40C and it is the only >>>> one reason to keep OCVCXO onboard. >>>> Also possible variant with external control panel to make easily IP65 >>>> housing design. >>>> Also DC supply voltage can be in range 8..28V to keep single DC supply >>>> if UmTRX will combined with IP65 tower mounted amplifiers. >>>> >>>> And so on depend of your fantasy :) >>>> >>>> Here included some project files and BOM for variant with 20dBm Tx and >>>> onboard control. >>>> PCB and PDF files will be in the next two e-mails. >>>> >>>> Best regards, >>>> Andrey Sviyazov. >>>> >>>> >>>> >>>> 2012/5/21 Alexander Chemeris >>>> >>>>> Andrey, >>>>> >>>>> On Sun, May 20, 2012 at 6:46 PM, Andrey Sviyazov < >>>>> andreysviyaz at gmail.com> wrote: >>>>> > 1) Is it used somewhere? In the datasheet there is probable errors, >>>>> for >>>>> > example, 1PPS is specified as input. >>>>> >>>>> Use this datasheet, here it's marked as output: >>>>> >>>>> http://www.transystem.com.tw/product/66/EB-570%20Data%20Sheet%20V1.4.pdf >>>>> Probably you have an older version of the datasheet. >>>>> >>>>> > 2) There are inputs Reset and Standby. The first can be left open, >>>>> and the >>>>> > second is possible need to be connected to to FPGA. >>>>> >>>>> Yes. >>>>> >>>>> > 3) There Is RTC_CLK_O we don't need him? And that there may be, >>>>> 32768? >>>>> >>>>> Could you route it to a test-point or a 2-pin IDC? I don't think we >>>>> need this, but it's better to have an ability to access it. >>>>> >>>>> > 4) Which of two UART's better to use or are they equivalent? There >>>>> are no >>>>> > any words in datasheet about it. >>>>> >>>>> Use TX0/RX0 (pins 13/14), which is default to NMEA - see the datasheet >>>>> above. >>>>> >>>>> > 5) Unfortunately no place for both on PCB and we can use either >>>>> EB-230 or >>>>> > EB-570. >>>>> >>>>> Then we have to use EB-570. >>>>> >>>>> >>>>> -- >>>>> Regards, >>>>> Alexander Chemeris. >>>>> CEO, Fairwaves LLC / ??? ??????? >>>>> http://fairwaves.ru >>>>> >>>> >>>> >>> >> > -------------- next part -------------- An HTML attachment was scrubbed... URL: From andreysviyaz at gmail.com Wed May 30 20:28:32 2012 From: andreysviyaz at gmail.com (Andrey Sviyazov) Date: Wed, 30 May 2012 22:28:32 +0200 Subject: UmTRX v1b coming soon In-Reply-To: References:

Message-ID: Hi Jean-Samuel. Unfortunately nobody can say about isolation between Tx and Rx of the LMS6002 chip, about which I've told you. So, I decide to pre-amplify Tx because it can to reduce the output signal of the LMS. Anyway isolation of the PCB seems to be quite higher then inside LMS, I'm sure. And also, if I am wrong then we can bypass signal through C108-C109 to avoid this my mistake. Best regards, Andrey Sviyazov. 2012/5/30 Jean-Samuel Najnudel - BJT PARTNERS SARL > Hi Andrey, > > Thank you for your e-mail. > > This is a great news. Great ideas, great debug, great improvements. Thanks > a lot. > > The board looks fine but I will see in deeper details and let you know. > > A question just comes to my mind. > 20 dBm Tx output is very convenient. This would allow to saturate and > achieve a very good PA efficiency. This is really nice. > In case Tx output is 20 dBm are you sure we would not have any PCB Tx > signal leakage problems ? > A few months ago, you told me maximum Tx power was around 0 dBm to avoid > problems. Did you find a solution to improve isolation and allow the 20 dBm > Tx power ? > > Anyway, thanks a lot. Again, the board seems to be really great. This > would also bring a wonderful tool to the SDR, OpenBTS and OpenBSC > communities. Thank you so much for this. > > Best regards. > > Jean-Samuel. > :-) > > > > On Tue, May 29, 2012 at 7:59 PM, Andrey Sviyazov wrote: > >> Hi all. >> >> First of all, Alexander asked me to use UmTRXv2 instead of v1b, so >> project renamed and I'll send whole project later. >> Here "What new in UmTRXv2.txt" in addition to fixed of all known UmTRXv1a >> issues >> . >> Unfortunately, a lot physical changes between v1a and v2 and it is very >> difficult to me to explain all step-by-step in details. >> But I am ready to patiently answer for any kind of questions. >> Here also EEpromConfig.SchDoc and BOM files which changed because C298 >> should be Case-A (issue 18 >> ). >> >> Best regards, >> Andrey Sviyazov. >> >> >> >> 2012/5/29 Andrey Sviyazov >> >>> Here PDF's >>> >>> Best regards, >>> Andrey Sviyazov. >>> >>> >>> >>> 2012/5/29 Andrey Sviyazov >>> >>>> Here PCB file of project. >>>> >>>> Best regards, >>>> Andrey Sviyazov. >>>> >>>> >>>> >>>> 2012/5/29 Andrey Sviyazov >>>> >>>>> Hi all. >>>>> >>>>> First release of UmTRXv1b seems finished. >>>>> All suggestions and issues are welcomed, especially prior to >>>>> production (few days). >>>>> There are 4 Rx inputs to implement either scan function or software >>>>> diversity receiving. >>>>> There are 16pin connector to supply and control external preselector, >>>>> amplifier, LNA, ATT, diversity switch... >>>>> This new release have 2U size (100x160mm) that more universal for >>>>> indoor housing to put together several UmTRX's with PC and power supply >>>>> modules in one rack. >>>>> Also possible variant to meet to requirements -40C and it is the only >>>>> one reason to keep OCVCXO onboard. >>>>> Also possible variant with external control panel to make easily IP65 >>>>> housing design. >>>>> Also DC supply voltage can be in range 8..28V to keep single DC supply >>>>> if UmTRX will combined with IP65 tower mounted amplifiers. >>>>> >>>>> And so on depend of your fantasy :) >>>>> >>>>> Here included some project files and BOM for variant with 20dBm Tx and >>>>> onboard control. >>>>> PCB and PDF files will be in the next two e-mails. >>>>> >>>>> Best regards, >>>>> Andrey Sviyazov. >>>>> >>>>> >>>>> >>>>> 2012/5/21 Alexander Chemeris >>>>> >>>>>> Andrey, >>>>>> >>>>>> On Sun, May 20, 2012 at 6:46 PM, Andrey Sviyazov < >>>>>> andreysviyaz at gmail.com> wrote: >>>>>> > 1) Is it used somewhere? In the datasheet there is probable errors, >>>>>> for >>>>>> > example, 1PPS is specified as input. >>>>>> >>>>>> Use this datasheet, here it's marked as output: >>>>>> >>>>>> http://www.transystem.com.tw/product/66/EB-570%20Data%20Sheet%20V1.4.pdf >>>>>> Probably you have an older version of the datasheet. >>>>>> >>>>>> > 2) There are inputs Reset and Standby. The first can be left open, >>>>>> and the >>>>>> > second is possible need to be connected to to FPGA. >>>>>> >>>>>> Yes. >>>>>> >>>>>> > 3) There Is RTC_CLK_O we don't need him? And that there may be, >>>>>> 32768? >>>>>> >>>>>> Could you route it to a test-point or a 2-pin IDC? I don't think we >>>>>> need this, but it's better to have an ability to access it. >>>>>> >>>>>> > 4) Which of two UART's better to use or are they equivalent? There >>>>>> are no >>>>>> > any words in datasheet about it. >>>>>> >>>>>> Use TX0/RX0 (pins 13/14), which is default to NMEA - see the >>>>>> datasheet above. >>>>>> >>>>>> > 5) Unfortunately no place for both on PCB and we can use either >>>>>> EB-230 or >>>>>> > EB-570. >>>>>> >>>>>> Then we have to use EB-570. >>>>>> >>>>>> >>>>>> -- >>>>>> Regards, >>>>>> Alexander Chemeris. >>>>>> CEO, Fairwaves LLC / ??? ??????? >>>>>> http://fairwaves.ru >>>>>> >>>>> >>>>> >>>> >>> >> > -------------- next part -------------- An HTML attachment was scrubbed... URL: From jsn at bjtpartners.com Wed May 30 22:57:00 2012 From: jsn at bjtpartners.com (Jean-Samuel Najnudel - BJT PARTNERS SARL) Date: Thu, 31 May 2012 00:57:00 +0200 Subject: UmTRX v1b coming soon In-Reply-To: References:

Message-ID: Hi Andrey, Thank you very much for your reply. Yes, great idea. I think this really makes sense. Adding this amplifier would be better in most cases and cannot be worse than just saturating the LMS Tx without amplifier. Now I understand and fully agree with you. Best regards. Jean-Samuel. :-) Le 30 mai 2012 22:28, "Andrey Sviyazov" a ?crit : > Hi Jean-Samuel. > > Unfortunately nobody can say about isolation between Tx and Rx of the > LMS6002 chip, about which I've told you. > So, I decide to pre-amplify Tx because it can to reduce the output signal > of the LMS. > Anyway isolation of the PCB seems to be quite higher then inside LMS, I'm > sure. > And also, if I am wrong then we can bypass signal through C108-C109 to > avoid this my mistake. > > Best regards, > Andrey Sviyazov. > > > > 2012/5/30 Jean-Samuel Najnudel - BJT PARTNERS SARL > >> Hi Andrey, >> >> Thank you for your e-mail. >> >> This is a great news. Great ideas, great debug, great improvements. >> Thanks a lot. >> >> The board looks fine but I will see in deeper details and let you know. >> >> A question just comes to my mind. >> 20 dBm Tx output is very convenient. This would allow to saturate and >> achieve a very good PA efficiency. This is really nice. >> In case Tx output is 20 dBm are you sure we would not have any PCB Tx >> signal leakage problems ? >> A few months ago, you told me maximum Tx power was around 0 dBm to avoid >> problems. Did you find a solution to improve isolation and allow the 20 dBm >> Tx power ? >> >> Anyway, thanks a lot. Again, the board seems to be really great. This >> would also bring a wonderful tool to the SDR, OpenBTS and OpenBSC >> communities. Thank you so much for this. >> >> Best regards. >> >> Jean-Samuel. >> :-) >> >> >> >> On Tue, May 29, 2012 at 7:59 PM, Andrey Sviyazov wrote: >> >>> Hi all. >>> >>> First of all, Alexander asked me to use UmTRXv2 instead of v1b, so >>> project renamed and I'll send whole project later. >>> Here "What new in UmTRXv2.txt" in addition to fixed of all known >>> UmTRXv1a issues >>> . >>> Unfortunately, a lot physical changes between v1a and v2 and it is very >>> difficult to me to explain all step-by-step in details. >>> But I am ready to patiently answer for any kind of questions. >>> Here also EEpromConfig.SchDoc and BOM files which changed because C298 >>> should be Case-A (issue 18 >>> ). >>> >>> Best regards, >>> Andrey Sviyazov. >>> >>> >>> >>> 2012/5/29 Andrey Sviyazov >>> >>>> Here PDF's >>>> >>>> Best regards, >>>> Andrey Sviyazov. >>>> >>>> >>>> >>>> 2012/5/29 Andrey Sviyazov >>>> >>>>> Here PCB file of project. >>>>> >>>>> Best regards, >>>>> Andrey Sviyazov. >>>>> >>>>> >>>>> >>>>> 2012/5/29 Andrey Sviyazov >>>>> >>>>>> Hi all. >>>>>> >>>>>> First release of UmTRXv1b seems finished. >>>>>> All suggestions and issues are welcomed, especially prior to >>>>>> production (few days). >>>>>> There are 4 Rx inputs to implement either scan function or software >>>>>> diversity receiving. >>>>>> There are 16pin connector to supply and control external preselector, >>>>>> amplifier, LNA, ATT, diversity switch... >>>>>> This new release have 2U size (100x160mm) that more universal for >>>>>> indoor housing to put together several UmTRX's with PC and power supply >>>>>> modules in one rack. >>>>>> Also possible variant to meet to requirements -40C and it is the only >>>>>> one reason to keep OCVCXO onboard. >>>>>> Also possible variant with external control panel to make easily IP65 >>>>>> housing design. >>>>>> Also DC supply voltage can be in range 8..28V to keep single DC >>>>>> supply if UmTRX will combined with IP65 tower mounted amplifiers. >>>>>> >>>>>> And so on depend of your fantasy :) >>>>>> >>>>>> Here included some project files and BOM for variant with 20dBm Tx >>>>>> and onboard control. >>>>>> PCB and PDF files will be in the next two e-mails. >>>>>> >>>>>> Best regards, >>>>>> Andrey Sviyazov. >>>>>> >>>>>> >>>>>> >>>>>> 2012/5/21 Alexander Chemeris >>>>>> >>>>>>> Andrey, >>>>>>> >>>>>>> On Sun, May 20, 2012 at 6:46 PM, Andrey Sviyazov < >>>>>>> andreysviyaz at gmail.com> wrote: >>>>>>> > 1) Is it used somewhere? In the datasheet there is probable >>>>>>> errors, for >>>>>>> > example, 1PPS is specified as input. >>>>>>> >>>>>>> Use this datasheet, here it's marked as output: >>>>>>> >>>>>>> http://www.transystem.com.tw/product/66/EB-570%20Data%20Sheet%20V1.4.pdf >>>>>>> Probably you have an older version of the datasheet. >>>>>>> >>>>>>> > 2) There are inputs Reset and Standby. The first can be left open, >>>>>>> and the >>>>>>> > second is possible need to be connected to to FPGA. >>>>>>> >>>>>>> Yes. >>>>>>> >>>>>>> > 3) There Is RTC_CLK_O we don't need him? And that there may be, >>>>>>> 32768? >>>>>>> >>>>>>> Could you route it to a test-point or a 2-pin IDC? I don't think we >>>>>>> need this, but it's better to have an ability to access it. >>>>>>> >>>>>>> > 4) Which of two UART's better to use or are they equivalent? There >>>>>>> are no >>>>>>> > any words in datasheet about it. >>>>>>> >>>>>>> Use TX0/RX0 (pins 13/14), which is default to NMEA - see the >>>>>>> datasheet above. >>>>>>> >>>>>>> > 5) Unfortunately no place for both on PCB and we can use either >>>>>>> EB-230 or >>>>>>> > EB-570. >>>>>>> >>>>>>> Then we have to use EB-570. >>>>>>> >>>>>>> >>>>>>> -- >>>>>>> Regards, >>>>>>> Alexander Chemeris. >>>>>>> CEO, Fairwaves LLC / ??? ??????? >>>>>>> http://fairwaves.ru >>>>>>> >>>>>> >>>>>> >>>>> >>>> >>> >> > -------------- next part -------------- An HTML attachment was scrubbed... URL: