[Discuss-gnuradio] Freelancer wanted - LF Transmission with Gnuradio/USRP

[Ralf Wierse]

Dear all,

I got three times positive feedback on my beginners questions below.
Hence, I am pretty positive myself that my plan is feasible.
Today I started to use GRC...

This time I  would like to ask if there is a freelancer out there
intersted in helping us out. This year we have so many projects that
we don't really manage to design another prototype as described
below even if it is based on ready hardware.

I am asking for help in these topics:
1) setting up a basic GnuRadio structure (RX and TX) to enable us trying
around with different simple modulation schemes at different frequencies.
2) Designing simple analogue front ends for RX and TX with some
possibility to vary the transmit power to be used up to 1MHz or
some MHz to be connected to Ettus equipment.

Should be fun I suppose!

It would simplify things if YOU were resident in Europe or better Germany
but I appreciate answers from the US or elsewhere as well.
For number 2) above it is not absotuley necessary to create the hardware.
Design and component selection would help as well.

If you are interested please contact me directly and we can talk about
details.

Best regards,
Ralf

I don't really dare to type any email adress here to avoid spam and address 
crawlers...

http://tinyurl.com/5ths4yq

+49 5121 1760 707




> -----Original Message-----
> From: address@hidden 
> [mailto:address@hidden On 
> Behalf Of address@hidden
> Sent: Monday, May 30, 2011 2:13 PM
> To: address@hidden
> Subject: [Discuss-gnuradio] LF Transmission with Gnuradio/USRP
> 
> 
> Dear GNU Radio gurus,
> 
> I have sent this before but it might have not reached you guys.
> Excuse me some basic questions. Point me to another forum or 
> information
> site if this is not the right place...
> 
> we are supposed to pre-develop an inductive coupling radio 
> transmission
> system somewhere between 100khz and 1Mhz with low data rate.
> Nothing decided yet (modulation scheme, frequency, transnmit 
> power, ...)
> 
> I am thinking of Gnuradio on USRP with LFRX/TX as a kind of generic
> development platform for transmitter and receiver.
> 
> We are experienced in linux and python and others but we haven't
> digged very much into GNU Radio yet.
> 
> Can we do simple modulations like FSK, ASK and OOK easily?
> I expect we will get a simple spectrum analyzer capability with the
> USRP receiver, right?
> 
> I am not sure I fully understand what is implemented on LFRX/TC from
> Ettus Research? Only ADC and DAC or also ome amplifiers and LP filter?
> Where can we find specifications?
> 
> Any recommendations to my project intention very much appreciated!
> 
> thanks in advance!
> Regards,
> Ralf
> 
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