Re: [Discuss-gnuradio] [USRP-users] SBX Noise

> On 08/09/2011 02:32 PM, Farrukh Aziz wrote:
>> Hi,
>>
>> I have been working with SBX and WBX dboards for a while now. I have
>> also experienced more noise with SBX.
> A number of people have reported this. We are investigating and will
> get back to you soon. What motherboard are you seeing this with?
>
> Matt
>
Another salient question, I think, is are noise levels being compared at
the same, or nearly the same, frequencies. Broadband LNAs
tend to be noisier at higher frequencies than lower ones, and since
the SBX have coverage up to 4.4GHz, it's not really "fair" to compare
noise at let's say 3.4GHz, with noise, at, say, 1.2Ghz.

>

--
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org

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