Re: [Discuss-gnuradio] Questions for 150/400MHz beacon RX development

[Mamoru Yamamoto]

Matt,

Thank you for your reply.  My USRP board is Serial No. 750 or something. 
This I bought in June 2006, and would match the following, I suppose.

===
To modify these boards for coherent applications if you have USRP rev 4 boards: 
Move R64 to R84, Move R142 to R153 
...
usrp/host/apps/burn-db-eeprom -A -t flex_400_mimo_b --force 
===

Is this correct?  I would like to know where the "flex_400_mimo_b" 
file exists in the LINUX.  I tried to find it, but failed.
(I found "usrp/host/apps/burn-db-eeprom" itslef.)

Regards,

Mamoru Yamamoto


> >
> >> (3) Signal coherence .. (a)
> >> I need to keep signal coherence between 150MHz and 400MHz.
> >> I should run the FLEX400 board at the same timing to the 
> >> USRP main board.  I found the following information URL
> >> http://comsec.com/wiki?USRPClockingNotes
> >> Is this instruction still valid?  I am using USRP ver4.
> >>     
> >
> > I believe this is still valid.  Matt, can you confirm?
> >   
> 
> 
> The RFX400_MIMO_B will do what you want.  You can find out what version
> you have by running print-db in the usrp/host/apps directory.  If you
> have the plain RFX400, you can modify it to the MIMO_B version by moving
> some resistors. 
> 
> The early RFX400's sold were the regular version, but all shipping
> recently are the MIMO_B version. 
> 
> Matt
> 
>