31 May
2017
31 May
'17
10:37 p.m.
Hi
I needed some information from you, I want to implement a GSM Mobile stack with USRP as RF
Frontend. Is it possible to build the DSP part of osmocommbb in a different TI DSP board
other than calypso. As it is very difficult to find calypso phones now a days.
BR
Snehasish
1 Jun
1 Jun
9:07 a.m.
On 5/31/17, Snehasish Kar <snehasish.cse(a)live.com> wrote:
[...] it is very difficult to find calypso phones now
a days.
That statement cannot be true, as I just went to ebay, searched for
C139 and got 33 listings; 30 of them are USA units (850+1900 MHz
bands), but 3 are from the UK and thus presumably the 900+1800 MHz
version.
There are also newly made Calypso devices:
https://www.freecalypso.org/fcdev3b.html
I designed and built the above Calypso board for the purpose of
running my own FreeCalypso firmware which is more demanding than
OsmocomBB and for which Mot C1xx phones aren't good enough, but
OsmocomBB runs on my board just fine as well. However, if you are only
interested in OsmocomBB and not FreeCalypso firmware, then buying my
expensive board will be a waste of money, as it offers absolutely no
advantage over the obscenely cheap Mot C1xx phones for OsmocomBB
purposes.
M~
9 Jun
9 Jun
6:27 p.m.
i did the search for more than a year
none of them export to INDIA.
i found 8$ like offers but only available in usa
america like places are heaven for us..
7:15 p.m.
On 6/9/17, thayyil09 yil <thayyil(a)yandex.com> wrote regarding Mot C1xx
phone availability:
i did the search for more than a year
none of them export to INDIA.
i found 8$ like offers but only available in usa
america like places are heaven for us..
If you like, I would be glad to resell you some of the ebay-sourced
C139 units in my stash (I have about 50 of them IIRC), and I won't
have any problem with shipping to India or anywhere else in the world,
but these C139 phones probably won't do you any good as they are all
850+1900 MHz units, whereas you probably need 900+1800 MHz in India.
As I already mentioned, I do have a Calypso modem board of my own
design and make (FreeCalypso FCDEV3B), primarily intended for running
my own FreeCalypso firmware but also capable of running OsmocomBB just
fine (certainly no worse than Mot C1xx phones), and it has a
900/1800/1900 MHz triband radio front-end. I am not yet at the point
where I can sell these boards, but I am hoping to get there in another
few months: I need to make another batch of boards first, and before I
order the assembly of that next batch, I need to resolve all of the
little issues found on the first batch.
But these newly made FreeCalypso GSM MS development boards certainly
won't be cheap; I have not yet figured out what the retail price will
be, but I estimate somewhere around $500 USD.
M~
2524
days inactive
2533
days old
baseband-devel@lists.osmocom.org
4 comments
3 participants
participants (3)
-
Mychaela Falconia -
Snehasish Kar -
thayyil09 yil