2016年3月5日 · From looking at the source of rtl_tcp, it prints "ll+" (two Ls) when there are more elements in the 'to send' buffer than the last time the RTL callback was called. The TCP worker sets ll_buffers to 0 when it's copied and is processing the data, so if the callback method sees that the buffer hasn't been set to 0 it does something else with the ...

2014年10月22日 · I have also tried the premade Gnuradio Live DVD with the same result i have, .. ll+ error's even here. If i use windows client's like SDR-CONSOLE or SDR Sharp it works perfect, soo it must be some problems with the RTL-SDR source / block in Ubuntu some how, .. but im not a developer soo i cant debug.

2014年2月13日 · That means that the client application is not actually reading its data from the socket or fast enough, so the linked list buffers inside rtl_tcp overflow (thus the ll+). We have a hard limit of 500 buffers in rtl_tcp at the moment, to prevent the …

2019年5月1日 · The ll+ messages from rtl_tcp mean that rtlamr isn’t consuming samples as fast as they are being produced. If you’re running this on an SBC like an RPi you’ll want to try doing discovery with -msgtype=all on a more powerful system. The R900 decoder is rather resource-heavy compared to the ERT messages.

2016年1月10日 · Do you experience this issue from the very first attempted tune, or does is gradually get worse over time? That'll help diagnose the issue. FWIW I run rtl_tcp from the roof, via an old 200Mb homeplug on both a Pi and 1st gen Atom netbook and on both the stability is questionable. When I ran a speedy connection back up to the loft to fix things, it really didn't seem to make a huge amount of ...

2014年11月13日 · In my case i CANT connect with gr3.7 rtl_tcp source or gqrx, cose it gives me "ll+," error's. But if i connect with and older version of SDR# or SDR-Console under Windows it works perfect.

2016年8月19日 · Just noticed that while all this is going on, rtl_tcp is outputting a lot of lines that look like this: ll+, now 4 ll+, now 5 ll+, now 6 ll+, now 7 ll+, now 8 ll+, now 9 ll+, now 10 ll+, now 11 This seems to be the same problem described previously, and unfortunately without any solution:

2021年5月10日 · I have put this into debug mode but all I am getting are short lines that say ll+, now 0 ll+, now 1 ll+, now 2 ... ll+, now 501 ll+, now 502 repeat. do you know what this means or what I can do with that.

2014年12月6日 · It's the size of the sample buffer. The buffer is there to account for jitter (slight differences in how quickly the samples are sent over the TCP connection, as compared to how quickly they come from the radio). A bigger buffer is more resilient to jitter. Or at least it lets the client deal with the jitter problem instead of throwing away data at the server. The default value of …

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