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    SDR gnuradio RTL-SDR x N900

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    Freddie | # 51 | 2013-10-14, 13:47 | Report

    glad this is workin soooo great, just asking, what about gettin dvb-t compliant video broadcast?

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    biketool | # 52 | 2013-10-14, 16:18 | Report

    Originally Posted by Freddie View Post
    glad this is workin soooo great, just asking, what about gettin dvb-t compliant video broadcast?
    There is another thread where DVB was working with overclocking, this is using the software defined radio drivers.

    BTW here is a HF downconverter for about $35. http://www.ebay.com/itm/HF-Converter...item2a324944ad

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    biketool | # 53 | 2013-10-15, 11:48 | Report

    I just ordered the $10 SDR/DVB dongle upthread. I think that with two PCBs stacked you could actually jam this inside a Neo900 with a Mugen cover though it would need a hole for an antenna connector. Glad I bought 3 covers when they were cheap!

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    bobbarker | # 54 | 2013-10-15, 19:24 | Report

    It'll fit easily if you don't have doubled up batteries. It'll take some work if you have a big battery.

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    antennenmann | # 55 | 2013-10-18, 13:35 | Report

    Hi,

    first of all thanks to xes for the nice work, the N900 broadband receiver with a cheap dvb dongle is a great thing.


    Receiving narrow and wide FM signals is no problem with rtl_fm and aplay but gqrx output is:

    "error while loading shared libraries: gnuradio-audio-3.6.2.so.0.0.0: cannot open shared object file: No such file or directory"


    A second problem is the link to
    multimon-ng_20130910_N900_Xes.tar.gz
    I am not able to download. My fault or is the file down ?


    Please help me to use this best N900 project ever


    best regards

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    Last edited by antennenmann; 2013-10-18 at 13:42.
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    xes | # 56 | 2013-10-18, 14:13 | Report

    Originally Posted by antennenmann View Post
    Hi,

    first of all thanks to xes for the nice work, the N900 broadband receiver with a cheap dvb dongle is a great thing.

    Receiving narrow and wide FM signals is no problem with rtl_fm and aplay but gqrx output is:

    "error while loading shared libraries: gnuradio-audio-3.6.2.so.0.0.0: cannot open shared object file: No such file or directory"

    A second problem is the link to
    multimon-ng_20130910_N900_Xes.tar.gz
    I am not able to download. My fault or is the file down ?

    Please help me to use this best N900 project ever

    best regards
    It seems that the multimon-ng download link has some problem... I will upload that again.
    Until that you can use the mirror provided by joerg_rw:
    http://maemo.cloud-7.de/maemo5/opt/r...900_Xes.tar.gz

    Talking about the gqrx missing lib, you shoud add to /etc/ld.so.conf the path "/opt/gnuradio/lib" or create the symbolic links of the gnuradio libs into /usr/lib.
    Doing this, gqrx will be able to use the gnuradio libs.

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    antennenmann | # 57 | 2013-10-18, 15:04 | Report

    Thank you !

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    antennenmann | # 58 | 2013-10-18, 16:13 | Report

    It works ! Thank you again.

    The gqrx GUI doesn't fit into the screen and it seems that the cpu load is to heavy to work seamlessly but wtf it works on N900 !

    I also tried multimon-ng, there is no error, I think it works but I have no possibility to test a signal today.

    Even if rtl_fm is the only continuous part I'm very lucky

    My dongle is a "Terratec ran T-Stick+", not mentioned at the most manuals, but it works with rtl-sdr on N900, raspberry PI, Debian, Win sdr#, ... bought at "Conrad" store (20€, there are cheaper dongles but if you can't wait it's ok)

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    xes | # 59 | 2013-10-18, 17:05 | Report

    You can customize gqrx disabling a few toolbar...

    I should try to build the new version 2.3.0.
    It has some kind of optimization for small screens:
    https://github.com/csete/gqrx/blob/master/news.txt

    ...But i'm not so sure it will build succesfully.

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    Last edited by xes; 2013-10-18 at 17:10.
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    misiak | # 60 | 2013-11-24, 16:48 | Report

    http://2011.ruxcon.org.au/assets/Pre...rldWithSDR.pdf - nice presentation (althought almost 3yo) about sdr usage ideas

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