Quite often it works, but sometimes it does not,
not to long time ego I had to investigate one non-linearity case with a
high mode QAM signal, there was something, what not supposed to be
there, the only spectrum analyzer which had enough dynamic range was one
from Rohde&Schwarz,
73
K6UHN
Alex
On 2/14/2016 11:20 AM, William H. Fite wrote:
They don't wonder; they know very well. But they're stuck. Consider
oscilloscopes. Why pay for a Keysight or Tectronix or LeCroy or, God
forbid, a Rohde & Schwarz when, for the vast majority of applications, a
Rigol will give you everything you need at 1/N the cost?
The hugely expensive, overbuilt gear that we grew up with is yesterday's
news; that's why we can scarf it up so cheap on the 'bay. Lots of labs and
manufacturing facilities now consider basic gear like DSOs, SAs, DMMs,
PSUs, and sig-gens as disposable as cell phones.
I'm not sure that is a bad thing.
Bill
On Sunday, February 14, 2016, Scott McGrath <scmcgr...@gmail.com
<javascript:_e(%7B%7D,'cvml','scmcgr...@gmail.com');>> wrote:
HP's greatest advantage of old was being the largest and best vertically
integrated technology company as innovations in one line of business were
often applicable to others. This was right down to things as prosaic as
packaging and or hybrid circuit design
Now Keysight is just another mid sized technology company who outsources
much of their production and wonders why Asian vendors can copy their stuff
so rapidly and undersell them.
Content by Scott
Typos by Siri
On Feb 14, 2016, at 8:31 AM, Adrian Godwin <artgod...@gmail.com> wrote:
HP built their reputation for quality and reliability with test
equipment.
Computers were always considered a bit weird (in a nice way, in the case
of
handheld calculators) but printers have followed the consumer race to the
bottom.
It's sad to hear that the instrument division are no longer focused on
keeping that reputation - perhaps that's why the medical division moved
to
separate the names.
On Sun, Feb 14, 2016 at 11:28 AM, Dr. David Kirkby (Kirkby Microwave
Ltd) <
drkir...@kirkbymicrowave.co.uk> wrote:
On 14 Feb 2016 09:04, "Perry Sandeen via time-nuts" <
time-nuts@febo.com
wrote:
Hi,
It is rather depressing to me to hear RK and others remark about the
unreliability of HP test equipment.
There is one area where they had outstanding equipment.
I have a friend with a fairly large lab. He must have 50 signal
generators,
15 spectrum analyzers, plus plenty of other stuff. Mainly RF. Most is
HP/Agilent, but he has Rohde & Scwarz and Anritsu too. He finds the HP
the
most reliable.
Also Anritsu seem to charge a lot for calibration. A recent repair to a
modern 6 GHz Anritsu signal generator resulted in the repair bill plus
£1200 GBP (around $1800) for calibration. That particular sig gen, which
was sold for mobile phone use, has an electronic attenuator that will
blow
up if a mobile phone is transmitted into it.
He used to think he preferred R&S signal generators to Agilent, but the
reliability of the R&S has been poorer so his mind has been changed on
that.
I am sure every company has some products that have been very reliable
and
some less so, but I would dispute that HP is in general less reliable
than
other decent makes.
Support on HP is generally good, with the forums which are answered by
Keysight staff. (An annoying exception seems to be LCR meters and
Impedance
analyzers developed in Japan. The Japanese engineers hardly ever visit
the
forums so questions on LCR meters and impedance analyzers generally get
no
response.)
There are instrument ranges where other manufacturers seem better (e.g.
Keithley for electrometers), but overall HP/Agilent seem the best
choice to
me.
I know someone who is looking for a 20.GHz VNA. He just lost out on a
Windows based R&S VNA that sold on eBay for a bit over $7000. There's no
way a 20 GHz Windows based Agilent VNA would fetch so little. This is
reflected in their higher resale values.
At least with the older stuff,, service manuals for HP are useful,
though
modern service manuals are less so.
Just my opinion.
Dave.
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