Re: [Freetel-codec2] Codec2 700B small signal performance
On 1/17/18, Tomas Härdinwrote: > What's the hardware? > > /Tomas > In this case, two USRP B200-mini. But I have obtained similar results with other hardware like the LimeSDR mini. Adrian -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot ___ Freetel-codec2 mailing list Freetel-codec2@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freetel-codec2
Re: [Freetel-codec2] Codec2 700B small signal performance
What's the hardware? /Tomas On 2018-01-17 10:29, Adrian Musceac wrote: Hi, I made a short video demo of the Codec2 700B mode being tested on the 70 cm ISM band with low power transmissions: https://www.youtube.com/watch?v=mH0yScs5QB0 The performance is very good across the board, and the only thing I'm wishing for now is having the 700C and future 700D modes in my distro's packages. Also, the video shows the importance of FEC in recovering the voice from a very noisy signal. Even though the carrier is not discernable, seemingly buried in noise on the spectrum scope, the voice is decoded with low error rate. In conclusion, the 700B mode performs better than analog FM transmissions in the same frequency bands. Best regards, Adrian -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot ___ Freetel-codec2 mailing list Freetel-codec2@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freetel-codec2
[Freetel-codec2] Codec2 700B small signal performance
Hi, I made a short video demo of the Codec2 700B mode being tested on the 70 cm ISM band with low power transmissions: https://www.youtube.com/watch?v=mH0yScs5QB0 The performance is very good across the board, and the only thing I'm wishing for now is having the 700C and future 700D modes in my distro's packages. Also, the video shows the importance of FEC in recovering the voice from a very noisy signal. Even though the carrier is not discernable, seemingly buried in noise on the spectrum scope, the voice is decoded with low error rate. In conclusion, the 700B mode performs better than analog FM transmissions in the same frequency bands. Best regards, Adrian -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot ___ Freetel-codec2 mailing list Freetel-codec2@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freetel-codec2