Re: [Discuss-gnuradio] FSK with RFX2400

[kaleem ahmad]

Dear All,

Can anyone also address the first part of my question aslo, I mean how to
improve the quality of received data. I mean is it normal with GNU
Radio/USRP that we receive so currupt data or I am doing something wrong.
Any suggestion please.......????????????????

Thanks


Matt Ettus wrote:
> 
> Jonathan Friedman wrote:
>>> Secondally how can I remove the ISM bandpass filter which is by default
>>> there with RFX2400.
>>>     
>>
>> You have to de-solder it. Optionally (in case you don't want to remove
>> the part, since it will be difficult to reinstall it), you could
>> install a jumper (zero-ohm resistor) or (better) a small 10pF
>> capacitor in parallel (there is a pad), but this may cause some weird
>> side-effects if you use the USRP in the ISM band after installation.
>>
>>   
> 
> You need to put a cap of between 25 and 500 pF in that location, AND you 
> need to cut the traces which go to the filter.  If you don't you will 
> get weird resonances.
> 
> Matt
> 
> 
> 
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