Eric Blossom wrote:
On Thu, Feb 28, 2008 at 12:51:18PM +0100, Crespi Floriana wrote:
Hi,
I have a problem with OFDM system.
I transmit OFDM signal at 2.4 GHz, but I receive half of the total packets.
Moreover, only half of the packets received are correct.
CRC controller is perfect but i want a ber estimate, so I change the
payload (binary file) and I receive check bit by bit.
The result of my alteration test is similar than CRC test.
I have a lot of frequency offset, therefore I change manually the frequency
receiver.
I use revision 6845 and RFX 2400.
Example with crc:
The final packet I receive:
ok: False pktno 4602 n_rcvd 1300 n_right 83
Why can't i get all the packets?
Could you help me??
I'm testing OFDM system without USRP and none of the packets are lost.
Thanks a lot.
Hi Crespi,
You have neglected to tell us virtually anything about your problem.
Could you please tell us:
which version of GNU Radio? trunk, tarball (which one), etc?
what operating system, distribution and architecture?
the command line you issued
any modifications you may have made to distributed code?
anything else that might be relevant
it seems to me like you're using antennas, you can try coax to isolate
the problem.... maybe you're getting interference at 2.4GHz. But answer
Eric's questions too.
- George
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