Am 12.12.2010 07:43, schrieb Jim Lux:
I think it would be possible to build a microwave front end for, say the tentec
tapr VNA. A nice quiet synthesized LO, etc
I have this one: http://groups.yahoo.com/group/VNWA/
excellent to 500 MHz, quite ok to 1300. 12-term calibration,
Includes opt.
I found the Signal Hound while searching for a baseband analyzer, to be use
in phase noise measurements.
Don, do you have tried it? maybe using an external low noise ref?
Any other member tried it?
--
Geraldo Lino de Campos
gera...@decampos.net
It is pretty impressive for 10 oz of weight. Thats also a reasonable price
if you did not have the big iron big power units.
Regards
On Sun, Dec 12, 2010 at 1:43 AM, Jim Lux jim...@earthlink.net wrote:
On Dec 11, 2010, at 10:14 PM, Don Latham d...@montana.com wrote:
Jim: Indeed. I've a
-boun...@febo.com [mailto:time-nuts-boun...@febo.com]on
Behalf Of Geraldo Lino de Campos
Sent: Friday, December 10, 2010 5:14 PM
To: time-nuts@febo.com
Subject: [time-nuts] Software defined spectrum analyzer
I found this device on the net. It seems quite capable for the price. Does
anyone have
To: time-nuts@febo.com
Sent: Friday, December 10, 2010 6:13 PM
Subject: [time-nuts] Software defined spectrum analyzer
I found this device on the net. It seems quite capable for the price.
Does
anyone have experience with it, or the previous version?
http://www.signalhound.com/
Geraldo
Luis Cupido wrote:
Hi Don.
I'm ultra curious of how they did it. How did they covered the
full BW they have.
Did you looked inside, or did they sent a block diagram?
(...I was born curious... it is not a new symptom!)
Luis Cupido.
ct1dmk.
the manual is on the website..
some clues
: Friday, December 10, 2010 6:13 PM
Subject: [time-nuts] Software defined spectrum analyzer
I found this device on the net. It seems quite capable for the price.
Does
anyone have experience with it, or the previous version?
http://www.signalhound.com/
Geraldo
Hi Don.
I'm ultra curious of how they did it. How did they covered the
full BW they have.
Did you looked inside, or did they sent a block diagram?
(...I was born curious... it is not a new symptom!)
Page 27 of their manual at http://www.signalhound.com/manual.pdf has a block
diagram. The
-nuts@febo.com
Subject: Re: [time-nuts] Software defined spectrum analyzer
Hi, John,
Do you have any experience with it? Not too long ago I was in the need
to do some conducted EMC measurements in the range of 30Hz to 100MHz,
with a quite low maximum requirements, and I found that my current
...@febo.com [mailto:time-nuts-boun...@febo.com]on
Behalf Of Javier Herrero
Sent: Saturday, December 11, 2010 9:26 AM
To: time-nuts@febo.com
Subject: Re: [time-nuts] Software defined spectrum analyzer
Hi, John,
Do you have any experience with it? Not too long ago I was in the need
to do some
Don Latham wrote:
Hi Luis:I, too, am curious. But I haven't opened it yet. I suspect
something like an FPGA feeding a fast a/d somewhere in the 50-70 MHz
range. That is, a decomposition.
There may be a synthesized LO and mixer to get to the 50 MHz.
The info on the website says or used to say
The Signal Hound is an interesting gadget. It's far more portable than my HP
8594E! And yes, the 10 MHz ref input on the back does help; without an external
reference it does tend to wander around.
Their website says they've replaced the original model with a rev B which
adds a preamp and
On 12/12/2010 02:31 AM, jimlux wrote:
Don Latham wrote:
Hi Luis:I, too, am curious. But I haven't opened it yet. I suspect
something like an FPGA feeding a fast a/d somewhere in the 50-70 MHz
range. That is, a decomposition.
There may be a synthesized LO and mixer to get to the 50 MHz.
The info
Tks, folks.
I saw the diagram on the manual, albeit a bit too simplified
but ok, indeed we can have an idea.
For LO I suspect that might be one of those clock generators IC with VCO
+ PLL plus a a lot of programmable dividers and really would match the
simplified diagram they have
As for
Magnus Danielson wrote:
On 12/12/2010 02:31 AM, jimlux wrote:
Two VCOs covering 1-2.2 GHz could through mixing and selecting between
sum and difference output filters (i.e. lowpass and highpass) cover that
without too much difficulty. Except for the highest end, there is a
degree of
El 12/12/2010 03:41, jimlux escribió:
This is an example of a new class of lab instruments.. you pay for the
hard part (the RF design and performance) and software takes care of
the rest, and since software has almost zero reproduction cost
And the hard part is also less expensive -
Sent: Saturday, December 11, 2010 7:41 PM
Subject: Re: [time-nuts] Software defined spectrum analyzer
Magnus Danielson wrote:
On 12/12/2010 02:31 AM, jimlux wrote:
Two VCOs covering 1-2.2 GHz could through mixing and selecting between
sum and difference output filters (i.e. lowpass
On Dec 11, 2010, at 7:07 PM, Javier Herrero jherr...@hvsistemas.es wrote:
And, if it works out nicely, standardized interfaces (like 50 ohms or
resistor color codes) will evolve, so the same software will work with a
$500 inexpensive widget or a $10,000 high performance widget from
On Dec 11, 2010, at 10:14 PM, Don Latham d...@montana.com wrote:
Jim: Indeed. I've a very small collection of USB instruments so far, but it's
definitely the way of the future for me. I have an older scope from link
instruments, the signal hound, and will construct one of the very simple
I found this device on the net. It seems quite capable for the price. Does
anyone have experience with it, or the previous version?
http://www.signalhound.com/
Geraldo
gera...@decampos.net
___
time-nuts mailing list
-
From: Geraldo Lino de Campos gera...@decampos.net
To: time-nuts@febo.com
Sent: Friday, December 10, 2010 6:13 PM
Subject: [time-nuts] Software defined spectrum analyzer
I found this device on the net. It seems quite capable for the price. Does
anyone have experience with it, or the previous
-nuts-boun...@febo.com]on
Behalf Of Geraldo Lino de Campos
Sent: Friday, December 10, 2010 5:14 PM
To: time-nuts@febo.com
Subject: [time-nuts] Software defined spectrum analyzer
I found this device on the net. It seems quite capable for the price. Does
anyone have experience
22 matches
Mail list logo
