UmTRX prototypes cost

Alexander Chemeris alexander.chemeris at gmail.com
Sun Jul 15 18:53:00 UTC 2012


Ok, 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



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