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pothosware / PothosDemos

Pothos demonstration applications
https://github.com/pothosware/PothosDemos/wiki
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modem0_example never receives a signal #7

Open nlbutts opened 5 years ago

nlbutts commented 5 years ago

I pulled the demos yesterday (6262ad9fa7fbbd2983e0deda2142a408d473afb3) and tried the modem0 example,

First, It doesn't transmit all of the time when I type something. Second, I don't see a signal transmitted. Third, I don't see any signal received.

I'm using a Lime SDR Mini and Pothos Flow v0.7.0-PothosSDR-2018.11.04-vc14-x64. I updated the FTDI drivers for the Lime SDR and reprogrammed it with the Lime Suite software that came with the PothosSDR I downloaded.

ChristoRei commented 5 years ago

Actually i cant geht the modem0 example working well too. I see the transmittet Data in the Display, but i dont receive anything... I am using LimeSDR too.

ChristoRei commented 5 years ago

I am still try to make the demo run and i am wondering, why the creater of the demo did the Data-Breaker? Isn't this kind of cheating? As far as i see, he is just passing the data from the TX page to the RX page without actually transmitting it....

guruofquality commented 5 years ago

Testing with loopback is normal. The loopback is disabled. The output of the FIR filter goes to the sdr sink.

I tested this long long ago with some bladerfs. Its not the best demo, and I would love some help getting a replacement.

Perhaps liquid dsp blocks are a good candidate? https://github.com/pothosware/PothosLiquidDSP

ChristoRei commented 5 years ago

Its not even working with using the loopback. I deactivated the SDR Source and Sink and just used the data directly. It stuck at the Frame Sync Block. I dont know why...

Jelly478558074 commented 4 years ago

It can only be sent but not accepted, can someone solve it ?