Ed:
It is advantageous when the connectding line between antenna and EUT is not in
line with (or parallel to) the welded gap, but at an angle of 10, 20, 45 degrees
(Fahrenheit) or somewhere in the neighborhood. It improves the NSA. I ran across
that about 15 years ago, verified the improvement
Greetings:
May I suggest that you look first on the LED output and what restrictions
apply to a laser of that power, considering accessibility etc. This will give
you an indications of the major problems. Apply EN60950 and EN60825 and do not
use the supply with 24 V as an excuse - sorry, I should
Greetings:
Several years ago I ran some tests on welded, soldered and twisted
thermocouples, ten of each type. Immersed in the same liquid. As sensor I
used a Fluke, two decimal places.
There was no difference between welded and soldered units. The deviation of the
twisted thermocouples was less
Richard:
If I am not mistaken, IEC 950 refers to IEC 390. Furthermore, attachment caps
and appliance inlets you should be abl;e to find in IEC 320.
IMHO, you make your life unnecessirily hard on yourself if you try to interpret
standards.
Bogdan.
WOODS, RICHARD wrote:
I can find nothing in IEC
Greetings:
When you want to apply the UL Listing or Registration Mark, you have to comply,
right? The same applies to the CSA Monogram, which is a legal requirement,
unless my memory is gone entirely.
Otherwise you are wasting valuable electrons and time.
Bogdan.
Price, Ed wrote:
Posted for:
Greetings,
May I suggest that you contact Vladan Temer of Sonoma Instrument, Tel. 707-
542-8569; FAX 707-542-1551? Excellent equipment.
Bogdan.
Knighten, Jim L wrote:
John,
Another option to consider is the HP 8449B PreAmplifier. It may have higher
noise floor than Ed's suggestion below,
Bob:
My ha'penny's worth:
What about increasing the voltage rating of the subject electrolytics? This
may be expensive, requiring costly capacitors. Something el cheapo: what
about a fuse on the input side of the cap?
Are the electrolytics by-passed with capacitors about 0.1 uF or less, with
Chaz:
To state the obvious first, I know of no EMC standard which refers
specifically to laboratory equipment. However, I would think that
talking to your customers about EMC may result in the most sensible
approach. Aside from those who never heard of EMC, you may find
customers who perform very
May I add a note of caution:
It may be worthwhile to check the permissible loading of the roof, especially
when you are in the Southwest where roofs are mostly for shade and a few drops
of rain. I guess that you don't want to appear suddenly in the conference room
below
Bogdan.
Gary McInturff
Lou:
In better times I used to live and wok in Huntsville, AL, and met a few of them
moccassins , however yours must have been especially long if it could strike
accross the road, i.e. about 20 to 30 ft in your case. The longest critter of
this kind I ever encountered was about 6 - 7 ft long and I
Cortland:
I think that the 10 dB attenuator would have done better service when connected
directly at the antenna by improving the match. Two 6 dB attenuators should
render better service, one at the antenna, the other directly at the amplifier.
Ferrite clamp-on beads placed at irregular
Don:
My suggestion would be to test at -48 V and also on the ac-side of any
converter that your company suggest as appropriate. Make sure that those
converters are listed in the user's information, accompanied by a statement
saying something like compliance with Class B of CISPR 22 can not be
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