Good to know. Yes, for that measurements the required limits were quite
low (21dBuA from 10MHz to 100MHz), and in that case the noise factor of
the 8566B were limiting (well... one could scan that range with narrower
bandwidths but would end taking ages). For the 30Hz frequency, the limit
was higher (I don't remember the exact value), but the 0Hz spur leakage
through the 10Hz filter was high enough to be over the measurement limit
(the EMC probe was a Solar 6247-1 clamp that has an horrendous
attenuation at that range, like all probes of that kind). Since I also
had not too much time available for experimenting, we ended conducting
the tests in a nearby laboratory, where we also conducted the EMC tests
for CE compliance. We were also near the limit of their ESU-40 and their
FFC clamp probes... but at least we had some dBs of margin to measure.
Next time, it would be the perfect excuse to buy one of these toys for
amusement also :)
Best regards,
Javier
El 12/12/2010 01:25, John Miles escribió:
I don't have a lot of experience with it, having bought it mostly for
amusement and to see what was inside, but it does live up to its specs as
far as I could tell. If your measurement was somehow limited by the 8566B's
10 Hz resolution bandwidth or its highpass response above 100 Hz, then the
Signal Hound would be an improvement. It's a very competent measurement
receiver for narrowband signals.
-- john, KE5FX
-----Original Message-----
From: [email protected] [mailto:[email protected]]on
Behalf Of Javier Herrero
Sent: Saturday, December 11, 2010 9:26 AM
To: [email protected]
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 probe
and HP8566B combination was not good enough to conduct them (due to
filter resolution in the low side and to noise factor in the high
side...). At the end, we contracted an external laboratory for doing
these measurements usign an R&S ESU-40 measurement receiver. Do you know
how good would this unit perform as a measurement receiver?
Regards,
Javier
El 11/12/2010 04:21, John Miles escribió:
It's neat -- not a substitute for the big HP iron, but still a
very capable
tool. The first few they sold were less expensive, but I think
it's still a
nice piece of gear for $1K. Good bang:buck ratio.
-- john, KE5FX
-----Original Message-----
From: [email protected] [mailto:[email protected]]on
Behalf Of Geraldo Lino de Campos
Sent: Friday, December 10, 2010 5:14 PM
To: [email protected]
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
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--
------------------------------------------------------------------------
Javier Herrero EMAIL: [email protected]
Chief Technology Officer
HV Sistemas S.L. PHONE: +34 949 336 806
Los Charcones, 17 FAX: +34 949 336 792
19170 El Casar - Guadalajara - Spain WEB: http://www.hvsistemas.com
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--
------------------------------------------------------------------------
Javier Herrero EMAIL: [email protected]
Chief Technology Officer
HV Sistemas S.L. PHONE: +34 949 336 806
Los Charcones, 17 FAX: +34 949 336 792
19170 El Casar - Guadalajara - Spain WEB: http://www.hvsistemas.com
_______________________________________________
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To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
