Thank you for your help.
2018-03-08 10:37 GMT+08:00 Marcus D. Leech via USRP-users <
> On 03/07/2018 08:07 PM, liu Jong via USRP-users wrote:
> Hi all,
> Do you give us some advice?
> thank you.
> best regards
> This is pretty-much what electronics *DOES*.
> There will be harmonics of the master clock at some level, and only 5dB
> above the noise is actually really good.
> Unless each compartment of a modern radio is in its own EMI-isolated
> package, there will be some radiation of clock signals.
> It's inevitable, so, you choose your master clock to not coincide with
> any of desired signal frequencies, wherever possible, and if
> not you have a "map" of frequencies that are likely to contain low-level
> harmonics of clocks inside the electronics.
> ANY wide-band modern receiver has this problem. But for many
> single-purpose applications, clock choices are made to avoid it
> being a problem or, if the harmonics are low (like only +5dB above the
> noise), simply ignored.
> 2018-03-06 11:48 GMT+08:00 liu Jong <jongliu1...@gmail.com>:
>> Hi all,
>> We test it with matlan2017b.But we don't think it does with softwere.
>> best regards
>> 2018-03-05 10:29 GMT+08:00 liu Jong <jongliu1...@gmail.com>:
>>> Hi all,
>>> Any suggestion is welcome.
>>> 2018-03-02 14:21 GMT+08:00 liu Jong <jongliu1...@gmail.com>:
>>>> Hi all,
>>>> When we set "master_clock_rate=25.6M" for Receiving and we found
>>>> that there is a Single frequency interference in
>>>> 76.8M(25.6X3),102.4M(25.6X4),153.6M and so on until above 1.5G.We
>>>> changed the "master_clock_rate=16M",and we also found that there is a
>>>> Single frequency interference in 80M(16X5),96M(16X6)and so on.The signal
>>>> power is larger than noise about 5db.Is it the problem of the chip or the
>>>> problem of USRP E310?
>>>> thank you
>>>> best regards
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