Earlier this year we bought Werlatone model C5086, rated 250 watts, for
conducted RF immunity.
Physical size and price are not significantly higher than the lower-rated
model.
We ported FWD power -40dB to a Boonton RF power meter for convenient
observation.
The combination works very well; insertion loss was negligible but we
re-ran the cal routine anyway.
Honeywell
David W. Sterner
Quality Assurance Engineering
Security & Custom Electronics
165 Eileen Way
P.O. Box 9035
Syosset, NY 11791
Phone: (516) 921-6704 x6970
Fax # (516) 364-6953
[email protected]
<http://www.honeywell.com>
From: Price, Ed [mailto:[email protected]]
Sent: Wednesday, September 08, 2004 3:41 PM
To: hansm; [email protected]
Cc: [email protected]
Subject: RE: Thanks, Re: Directional couplers
Werlatone directional couplers are based on a transformer design, with a
whopping big block of ferrite used as the sensing element. Unlike wall-style
directional couplers, one thing you must NEVER do is exceed the power rating
of the coupler. Even a short-term overload can change the nature of the
ferrite, and there goes your calibration. Not that I'm complaining about
Werlatone; used within their ratings, they last forever.
BTW, urban legend has it that the name comes from the founder's name;
something like Werla or Werlat.
Ed
Ed Price
[email protected] WB6WSN
NARTE Certified EMC Engineer & Technician
Electromagnetic Compatibility Lab
Cubic Defense Applications
San Diego, CA USA
858-505-2780 (Voice)
858-505-1583 (Fax)
Military & Avionics EMC Is Our Specialty
________________________________
From: hansm [mailto:[email protected]]
Sent: Wednesday, September 08, 2004 11:43 AM
To: [email protected]
Subject: Thanks, Re: Directional couplers
Thanks!
I got the info I needed!
Hans Mellberg
Engineering Manager
BACL, a TCB and an EU CAB
230 Commercial Street
Sunnyvale CA 94085 USA
408-732-9162 x38
408-732-9164 fax
----- Original Message -----
From: [email protected]
To: [email protected] ; [email protected] ;
[email protected]
Sent: Wednesday, September 08, 2004 11:23 AM
Subject: RE: Directional couplers
John and Hans,
Thanks for the good reference. The Werlatone directional
couplers look very nice. Here is a link to the Werlatone website:
http://www.werlatone.com/index.cfm?area=0&pageid=12
Sounds like an old-time electronic company name and it is
easy to remember. This comes to mind: But a Werlatone solid state electronic
organ today and get 25% off! Featuring 75 transistors! No more tubes to
replace!
Dave Cuthbert
Micron Technology
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of John McAuley
Sent: Wednesday, September 08, 2004 11:57 AM
To: hansm; EMC-PSTC
Subject: RE: Directional couplers
Hi
It is Werlatone, Brewster NY. they make a directional
coupler that covers 10 kHz to 1000 MHz in a single unit which is very useful
for EMC test set ups. We have two that are rather old now and have given
very good service. They appear to supply more to the OEM market for
incorporation into other equipment.
John McAuley
Compliance Engineering Ireland Ltd
Ratoath Road
Ashbourne
Co Meath
Ireland
Tel: +353 1 8256722
www.cei.ie
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This message is from the IEEE Product Safety Engineering Society
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