Re: [Discuss-gnuradio] [USRP-users] Questions about benchmark_tx/benchmark_rx

On Fri, Jun 1, 2012 at 1:01 PM, Weixian Zhou idea...@gmail.com wrote: I used the benchmark_tx and benchmark_rx to transmit data and I have some questions: 1. I set the frequency of both benchmark_tx and benchmark_rx to 300M, the transmission succeed; but it failed when I set the frequency to

[Discuss-gnuradio] Restore USRP2 images to support old USRP2 (Not UHD) code

Hi All, I have burned the USRP2 to support the UHD, but now I need to run some old USRP2 code. The new burned USRP2 images don't support the old code. So, is there any ways I can restore USRP2 images to old version to support the old code? Any help is appreciated, thanks in advance. -- Wenbo

[Discuss-gnuradio] Apply Trellis in benchmark_tx and rx

Hi, I applied trellis in benchmark_tx2 and rx2 using dbpsk2. I have modified the dbpsk2.py file according to the test_tcm_bit.py. On the TX side, I add: # turn bytes into k-bit vectors self.bytes2chunks = \ gr.packed_to_unpacked_bb(self.bits_per_symbol(),

Re: [Discuss-gnuradio] error correcting codes block

. --Colby On Fri, Jun 10, 2011 at 1:27 PM, Shen Wenbo shenwenbosm...@gmail.comwrote: Hi All, Does GNURadio the error correcting code (ecc) blocks ? I have googled, and found some info about directory gr-error-correcting-codes, but this folder is not in GNURadio 3.3. So, can any block

[Discuss-gnuradio] error correcting codes block

Hi All, Does GNURadio the error correcting code (ecc) blocks ? I have googled, and found some info about directory gr-error-correcting-codes, but this folder is not in GNURadio 3.3. So, can any block in GNURadio3.3 do error correcting? -- Wenbo ___

[Discuss-gnuradio] how to use gr_clock_recovery_mm_cc

Hi All, In the gmsk.py, the gr.clock_recovery_mm_ff is used. I want to use gr.clock_recovery_mm_cc (float omega, float gain_omega, float mu, float gain_mu) (which implements Mueller and Müller (MM) based clock recovery block with complex input, complex output) to replace the