of interest

[Don Latham]

https://www.ettus.com/product/details/UB100D-BDL?espuid=CNATL000001880638



--
"Neither the voice of authority nor the weight of reason and argument
are as significant as experiment, for thence comes quiet to the mind."
De Erroribus Medicorum, R. Bacon, 13th century.
"If you don't know what it is, don't poke it."
Ghost in the Shell


Dr. Don Latham AJ7LL
Six Mile Systems LLP
17850 Six Mile Road
POB 134
Huson, MT, 59846
VOX 406-626-4304
www.lightningforensics.com
www.sixmilesystems.com

[Marcus D. Leech]

> https://www.ettus.com/product/details/UB100D-BDL?espuid=CNATL000001880638
>
>
>
I'm horribly biased, but this is a smoking-good deal!



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

[Jim]

Where are the specs for this SDR?



DE N8XYN Jim

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[Marcus D. Leech]

> Where are the specs for this SDR?
>
>
>

The daughtercard is described here:

https://www.ettus.com/product/details/WBX

The B100 "motherboard" platform is described here:

https://www.ettus.com/product/details/UB100-KIT

There are lots of really good notes here:

http://files.ettus.com/uhd_docs/manual/html/index.html

And if you have specific technical questions: sup...@ettus.com

[That e-mail address is now shared between myself and Mike Jameson]

Keep in mind that unlike many of the amateur-radio-targetted SDR
platforms, these things don't come with any applications, per se.
They're really
intended as a development platform for producing SDR-based prototype
or production radio systems.

My "simple_ra" software (on top of Gnu Radio) supports all of the Ettus
hardware, as well as RTL-SDR.

[Marcus D. Leech]

> Where are the specs for this SDR?
>
>
>
> DE N8XYN Jim
>
> -----Original Message----- From: Marcus D. Leech
> Sent: Wednesday, May 15, 2013 7:14 PM
> To: sara...@googlegroups.com
> Subject: Re: [SARA] of interest
>
>> https://www.ettus.com/product/details/UB100D-BDL?espuid=CNATL000001880638
>>
>>
>>
>>
> I'm horribly biased, but this is a smoking-good deal!
>
>
>

There's also this:

https://www.ettus.com/product

Gives you a quick overview.

[Den Koawl]

The B100 works with the HDSDR software after one downloads and installs the DLL file for the B100.

 

Den

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[Marcus D. Leech]

> The B100 works with the HDSDR software after one downloads and
> installs the DLL file for the B100.
> Den
>

Yes, that's true.

But *none* of the "casual airwave surfing" apps that one usually finds
with SDRs are really completely appropriate for radio astronomy.
Consider that for most amateur setups, for example the *only*
accessible spectral line is the HI line. Otherwise, none of the fancy
"waterfall" displays and the like that you find in "casual airwave
surfing" software are particularly useful for radio astronomy. There are
exceptions, of course, like down in the LF/VLF end of things where
you might use a waterfall display to show off some whistlers.

The whole concept of SDR isn't that it's "just like having an ICOM
receiver, except on your computer display". The whole concept of SDR is
that the signal processing can be done entirely in software, and the
fancy GUI bits (if there are any) are rather secondary to that concept.

Prior to the advent of SDRs, the approach to using OTS radios for radio
astronomy was to kind of twist yourself sideways to make the radio
sorta-kinda do what you want. With the SDR approach, you don't have
to do that. You have raw baseband signals available, to several
MHz of bandwidth. You can do what you want with them. Do power
detection and averaging, spectral analysis, pulsar analysis, transients,
etc, etc, etc.

The problem with "twisting" HDSDR to use for radio astronomy, is that
it's basically re-using the same old, tired, "let's modify an existing
casual-air-surfing radio to sorta-kinda do some radio astronomy".
It's the wrong approach. Entirely.