[asterisk-biz] For sale: OpenBTS USRP test rig

[John Todd]

On Sep 27, 2010, at 11:40 AM, Steve Totaro wrote:

> On Mon, Sep 27, 2010 at 2:33 PM, Steve Totaro
> <stotaro at asteriskhelpdesk.com> wrote:
>
> Oh, did you hack the boards to flip between 900mhz and 1800mhz by
> simply flashing the firmware, does the flex1800 allow for that out of
> the box?
>
> I had to mod my flex900 boards to be able to do it, and if you aren't
> proficient at it at soldering and cutting a trace on a circuit board,
> you wind up with junk.
>
> Did you get your rig working?
>
> Thanks,
> Steve Totaro


Like Bret said, I think the 1800's just get re-flashed.

I don't have the 52mhz clock, but I see there are people on the  
openbts list selling them, perhaps - I haven't had much time to pay  
attention, hence the sale...

I never got this working - I just opened the box.  Time is at a  
premium these days, and despite my intense interest in seeing this  
stuff work, I just know I'm not going to be able to get it done with  
all the other things on the plate.

I really wanted to make an all-in-one cell repeater that I could drag  
with me wherever I happened to go that was out of standard GSM range  
but had Internet access (which is surprisingly quite often.)  Using  
trivial Asterisk tricks, this would allow me to continue using my  
phone seamlessly as long as I was within a few feet of the USRP.  Of  
course, this probably would be classified as rule-breaking due to  
usage of GSM frequencies, so I would not suggest anyone use,  
configure, think about, or even LOOK at a USRP.  Turn away.  NOW.  Go  
on.  Why are you still reading this?

JT