This is merely a historical archive of years 2008-2021, before the migration to mailman3.
A maintained and still updated list archive can be found at https://lists.osmocom.org/hyperkitty/list/UmTRX@lists.osmocom.org/.
Alexander Chemeris alexander.chemeris at gmail.comOk, thank you for the update. On Sun, Jul 15, 2012 at 9:58 PM, Jean-Samuel Najnudel - BJT PARTNERS SARL <jsn at bjtpartners.com> wrote: > Hi Alexander, > > Yes, all the manual handling operations we would need is also what makes me > feel a bit afraid of the cost too. In France, including all the costs they > need to pay for, a fab would charge manual operations around 30 Euros per > hour. > > Regarding the UmTRX samples production schedule, I do not think this will be > ready at the beginning of August. We should expect to get the boards in > mid-August. Sorry for the delay. Actually, everything is slower in France > from around July 14th to August 15th. I am really sorry about that. Next > batches will be faster. > > Best regards. > > Jean-Samuel. > :-) > > > > On Sun, Jul 15, 2012 at 6:57 PM, Alexander Chemeris > <alexander.chemeris at gmail.com> wrote: >> >> Jean-Samuel, >> >> Ok, we'll prepare drawings for the enclosure. But my assumption was >> that the biggest part of the cost would be handling, as it's a manual >> operation and prices in Europe for this are insane. >> >> I hope you have a good vacation! We'll try to mail you as little as >> possible :) >> >> Before you leave - could you update us whether the original estimation >> for this batch of UmTRX production is correct, i.e. we'll get >> prototypes at the first week of Aug? >> >> On Sun, Jul 15, 2012 at 8:46 PM, Jean-Samuel Najnudel - BJT PARTNERS >> SARL <jsn at bjtpartners.com> wrote: >> > Hi Alexander, >> > >> > Yes, this is a very good news. Except for selectivity, the UmTRX >> > performances and features are great and you still have a reasonable cost >> > structure. >> > >> > Regarding the enclosure, I think the fab can do this. However, they >> > would >> > need to know the exact drawing of all the connectors. They really need >> > precise details before they accept to send me a quote. >> > >> > Moreover, most of the volume order will need outdoor enclosure including >> > the >> > UmTRX, the diversity and selectivity daughter board and the CPU board. >> > UmTRX only in an enclosure will be only interesting for some lab >> > applications (excluding people who are ok with the board without any >> > enclosure). This would make the volume quite low and I am afraid low >> > volume >> > would mean quite high price. For the board itself, the fab makes some >> > efforts on the price because they expect reasonably larger volumes but >> > for >> > this enclosure for lab applications only, they will probably be quite >> > expensive. >> > >> > If you are still interested in this enclosure assembly, please send me >> > the >> > exact drawing and I will ask them for a quote. >> > >> > By the way, I will be on holidays on next week. I may take some time to >> > reply to your e-mails. Sorry about this. >> > >> > Best regards. >> > >> > Jean-Samuel. >> > :-) >> > >> > >> > >> > On Sun, Jul 15, 2012 at 5:50 PM, Alexander Chemeris >> > <alexander.chemeris at gmail.com> wrote: >> >> >> >> Hi Jean-Samuel, >> >> >> >> This is very good news! It means we've met the target cost price and >> >> we haven't compromised functionality. >> >> >> >> Could you ask the fab how much would it cost to put the board into an >> >> enclosure like this, including the front panel and the rear panel >> >> drilling and engraving? >> >> >> >> >> >> http://www.fischerelektronik.de/web_fischer/en_GB/cases/M1.07/Miniature%20aluminium%20cases/PR/AKG105_030_/$productCard/dimensionParameters/index.xhtml >> >> >> >> The idea is to sell it to general public in small quantities for in-lab >> >> use. >> >> >> >> On Sun, Jul 15, 2012 at 7:08 PM, Jean-Samuel Najnudel - BJT PARTNERS >> >> SARL <jsn at bjtpartners.com> wrote: >> >> > Hi Alexander, >> >> > >> >> > Total cost for production is approximately 10000 Euros for 20 units, >> >> > including about 1000 Euros Non Recuring Costs. Approximate unit cost >> >> > for >> >> > sample batches (6 and 14 units each) is a bit bellow 500 Euros. >> >> > >> >> > If we do not need to change the PCB, unit cost will be around 440 >> >> > Euros >> >> > for >> >> > 20 units batches. >> >> > >> >> > If we make 50 or 100 units batches, cost could be a bit lower but not >> >> > that >> >> > much. >> >> > >> >> > We could expect to save on the TCD-4029-26.0M. Today, we pay it about >> >> > 15 >> >> > Euros because of our low volume. For 50 or 100 units, we could buy >> >> > this >> >> > part >> >> > directly from Pletronics and save about 5 or 6 Euros per unit. >> >> > >> >> > We could also save on the PCB. For 20 units, cost is 32 Euros but we >> >> > could >> >> > expect to save 5 to 10 Euros on it. >> >> > >> >> > On all other components, we could expect something like about 10 to >> >> > 15 >> >> > Euros >> >> > extra savings. >> >> > >> >> > For 50 units batches instead of 20 units, we could also save about 4 >> >> > Euros >> >> > per board on the cost the fab charges for loading the assembly >> >> > machines. >> >> > >> >> > For 50 units batches, we could achieve a unit production cost at 500 >> >> > USD. >> >> > >> >> > Anyway, please find enclosed a few details about our production >> >> > costs. >> >> > You >> >> > can see fab costs are quite reasonable expecially for our low and >> >> > medium >> >> > volumes. This cost structure is really convenient to make our samples >> >> > and >> >> > gradually ramp up our production volumes. In case we reach much >> >> > higher >> >> > volumes in the future, I am quite confident we could bargain a bit >> >> > more >> >> > the >> >> > fab costs and certainly also save a bit more on the components >> >> > sourcing >> >> > costs. Except for the low cost femtocells market, I really believe >> >> > this >> >> > cost >> >> > structure will allow you to compete on the market in good conditions. >> >> > >> >> > You would need to add the cost of the enclosure, the PSU, the >> >> > diversity >> >> > and >> >> > selectivity RF daughter board we need to pass the spec and the CPU >> >> > mother >> >> > board we need to run the Transceiver and OpenBTS. You should expect a >> >> > total >> >> > cost around 800 USD excluding the frontend (PA+LNA+duplexers). >> >> > >> >> > For your information, the dual TRX outdoor enclosure frontend with 10 >> >> > Watts >> >> > PA I can get from my Chinese supplier costs 810 USD + shipping. >> >> > >> >> > Please do not hesitate to contact me if you need any extra figures or >> >> > information. >> >> > >> >> > Best regards. >> >> > >> >> > Jean-Samuel. >> >> > :-) >> >> > >> >> > >> >> > >> >> > On Sun, Jul 15, 2012 at 9:08 AM, Alexander Chemeris >> >> > <alexander.chemeris at gmail.com> wrote: >> >> >> >> >> >> Hi Jean-Samuel, >> >> >> >> >> >> Could you share the prices you get for UmTRX from your fab for this >> >> >> batch of prototypes and for the next batches? We have to understand >> >> >> the cost price to see what could we offer to customers. >> >> >> >> >> >> -- >> >> >> Regards, >> >> >> Alexander Chemeris. >> >> >> CEO, Fairwaves LLC / ООО УмРадио >> >> >> http://fairwaves.ru >> >> > >> >> > >> >> >> >> >> >> >> >> -- >> >> Regards, >> >> Alexander Chemeris. >> >> CEO, Fairwaves LLC / ООО УмРадио >> >> http://fairwaves.ru >> > >> > >> >> >> >> -- >> Regards, >> Alexander Chemeris. >> CEO, Fairwaves LLC / ООО УмРадио >> http://fairwaves.ru > > -- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ООО УмРадио http://fairwaves.ru