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EMC / EMI / RFI
Manufacturers & Services

As the environment becomes more and more crowded in the RF realm, interference has become a major issue. Far more than simply an occasional nuisance, this phenomenon has the potential to seriously interrupt the conducting of business, personal communications, hobbies and even critical life support monitoring systems. As a radio control model hobbyist myself (see my Airplanes And Rockets Website), I have been aware for 30 years about the perils of interference and the profoundly disastrous results that can occur is left unchecked. Preventing interference is a big part of the cure, since it is not always possible to simply design a receiver that can reject the interference.
The manufacturers & services listings here should help you find the assistance you need. Please see the Absorber, Magnetics & Shielding Links and the ESD | EOS pages for more related links.

Please contact my advertisers first.

EMC | EMI | RFI Resources
My policy is to only list companies that actually manufacture product or offer services related to the page title subject. Product distributors and sales representatives are not listed (they have their own page). This helps guarantee that each listing offers a unique product or service. NOTICE: I am no longer adding hyperlinks. Your best bet is to use a search engine to find company websites directly. If you are interested in advertising, please visit my Advertising information page.
Click to visit the 3Gmetalworx website3Gmetalworx
Concord, Ontario
888-965-3634

3Gmetalworx PCB shieldSince 1994, leading wireless electronics companies have relied on 3Gmetalworx to deliver cutting edge solutions for advanced RF/EMI PCB-level shielding requirements. From prototyping and design services to JIT manufacturing supply, our clients depend on us to provide a seamless service pathway supporting entire product lifecycle. RoHS / WEE Compliant.
All our shields can incorporate these features, as well as your custom needs: ▪ Engagement Tabs
▪ Trace/Component Relief
▪ Tuning/Access Openings
▪ Thermal Relief
3gmetalworx shieldBasic Shielding Cans
  Meant for permanent installation
3gmetalworx shield & coverSingle-Cavity Shield Sets
  Cover can be removed and re-installed
3gmetalworx multicavity shieldMulti-Cavity Shield Sets
  Cover can be removed and re-installed
Tin Plated Mild Steel for indoor or economical commercial applications.

Nickel Silver Alloy for outdoor, marine, avionic or defense applications.


Please click here to visit the Ophir RF websiteOphir RF
Los Angeles, CA
Phone: 310-306-5556

  Since 1992, Ophir RF has been designing and manufacturing RF/Microwave Amplifiers for Military, T&M, EMC and Scientific Research Applications.

  Products range 10 kHz to 40 GHz. Power levels 1 W to 25 kW. Ophir RF's specializes in replacing RADAR tube technology with solid state. Whether RF Amplifier Systems or Modules, Ophir RF is your RF Power Source.

Amplifier Systems
  Systems are complete. They plug into an outlet and are ready to go. Standard systems are 2U-5U chassis, w/or w/o remote connectivity.

Amplifier Modules
  Modules are usually smaller and part of systems. You supply your own DC voltage and make the I/O connections. Modules are available with or w/o heatsinks and fans.

Amplifier Subsystems
  Subsystems are integrated solutions for requirements that fall outside of the normal 19" rack chassis and standard module configurations. Driver module provides the PA with higher gain and output power.

Custom Systems
  If you have identified an amplifier system or an amplifier module from our standard product line that requires modification, submit details on the RFQ form.


3Gmetalworx | 3gmetalworx.com
905-738-7973 | Toronto, Ontario, Canada
PCB-mounted application-specific RF/EMI shielding enclosures, including true multi-cavity solutions.

Adamson Consulting | patadamson.com
720-496-4002 | Boulder, CO
Specialists in intellectual properties strategies, product development, safety marks, and onsite electromagnetic measurements.

Advanced Compliance Solutions | acstestlab.com
770-831-8048 | Buford, GA
Provides complete EMC, product safety and environmental testing of your products.

A.H. Systems | ahsystems.com
818-998-0223 | Chatsworth, CA
Manufacturer of individual calibrated EMC antenna kits, log periodics, biconical, dipoles, loops, monopoles, horns, preamplifiers, current probes and low-Loss cables that satisfy many compliance testing standards.

Applied Physical Electronics (APELC) | apelc.com
512-264-1804 | Austin, TX
Marx generators having output pulses with ultrafast rise times, moderate pulse widths, and amplitudes ranging from tens of kV to several MV. RS-105 MIL-STD-461 E/F tester for EMI/EMC. Testing antennas.

AR RF/Microwave Instrumentation  | ar-worldwide.com
(formerly Amplifier Research)
Souderton, PA
215-723-8181 - Information/Sales
800-933-8181 - Applications
RF power amplifiers, solid state microwave amplifiers, TWT amplifiers, antennas, transient generators, EMC test systems and software, field probes and monitors, test accessories, and RF test system controllers.

Braco Compliance | bracocompliance.com
+64 21 208 4303 | New Zealand
Australia and New Zealand C-Tick agent, NZ radiocommunications agent and NZ medical device sponsor that enables suppliers to meet the electromagnetic compatibility (EMC) regulatory regimes of both Australia and New Zealand.

Compliance Engineering Pty | compeng.com.au
+(613) 9763 3079 | Knoxfield Australia
A single source for all of your EMC requirements, including EMC compliance testing, EMR surveys, consultancy, EMC equipment sales, EMC test system integration, RF shielded enclosures, and antennas.

Com-Power Corporation | com-power.com
714-587-9800 | Brea, CA
Manufactures wide variety of EMI | EMC test equipment used for compliance testing, precompliance testing or solving EMC problems. Turnkey systems available. Active horn antennas, comb generators, field probes, spectrum analyzers, more.

Corcom (now Tyco) | corcom.com
Power line filters, power entry modules, signal line, facility, DC rated filters.

Cybershield | cybershieldinc.com
888-725-5361 | Dallas/ TX
EMI/RFI shielding solutions using plating, vacuum metallization and conductive paint. Dispensed conductive gaskets. 3D metal patterns on plastic, including printed antennas.

East Coast Shielding | eastcoastshielding.com
908-227-6857 | Hackettstown, NJ
EMI shielding products. Serving the electronics and commercial industries with high quality gaskets, gasket materials, and die-cutting materials. Whether you need a die cut, molded, or extruded material, we have the knowledge, expertise, and materials to meet your every need.

EMC Technology Florida RF Labs | emc-rflabs.com
800-544-5594 | Stuart, FL
Thin and thick film passive devices, attenuators, resistors, terminations, equalizers.

EMC Test Design | emctd.com
508-292-1833 | Newton, MA
Offers the complete line of Smart Fieldmeter® models including three broadband electromagnetic field probes, covering the frequency range 100 KHz-18 GHz, and one selective GSM probe for GSM 900-1900 MHz range.

Global Advantage International (now TÜV SÜD Canada Inc.) | tuv-sud.ca
905-883-3919 | Toronto, Ontario, Canada
Product EMC & safety testing, complete product safety, regulatory compliance and EMC solution provider.

Harwin | harwin.com
603-893-5376 | Salem, NH
Connectors, IC sockets, PCB sockets, components & PCB accessories, application tooling.

Instruments for Industry (IFI) | ifi.com
631-467-8400 | Ronkonkoma, NY
Amplifier configurations such as tetrode tubes, TWTs, klystrons, and solid state devices. Standard horn antennas and TEM cells.

Please click here to visit the Kete Microwave websiteKete Microwave
Oakland, CA
510-635-4270
Kete Microwave Electronics Co., Ltd. specializes in designing and manufacturing state of the art RF/Microwave passive components solution.

RF/Microwave passive components solutions including isolator/circulator, RF resistors, power divider/combiner, terminations, attenuators, 3dB hybrid coupler, multilayer chip ceramic capacitors, feed-through capacitors, directional couplers.

Connectorized, surface mount, drop-in, and waveguide versions available.

Product Lines Include
   • Filters
     • Isolators
      • Circulators
       • RF Switches
        • Mixers
         • VCOs
• Power Dividers
 • Power Combiners
  • RF Amplifiers
   • Diplexers
    • Directional Couplers
     • 3 dB Hybrid Couplers
We Will Build to Your Specifications
Standard catalog products can be modified, or new designs developed, to meet special requirements, please tell us your need, we'll be happy to work with you.

Kform | manufacturing.kform.com
703-450-4401 | Sterling, VA
RF shielded server rack enclosure, waveguides, EMI/RFI shielding, goof plugs, manufacturing and design services.

Koral Associates | koralassociates.com
+44 149 183 1682 | South Oxfordshire, UK
Radio frequency heating and drying consultancy service. Radio Frequency Interference (RFI) advice and solutions: assistance with EN55011 (Europe), AS2064 (Australia) and FCC Title 47 Part 18 (USA) compliance and measurement. Practical shielding and filtering solutions for RFI reduction for existing machines and new designs Health and Safety Advice and Solutions including OSHA CFR 1910-97 (USA) Physical Agents Directive requirements for Non Ionising Radiation (Europe) Safe Interlocking, design of protective systems. RF Awareness. Triode tube (Valve) calculations and replacement advice. Expert witness service.

Laird Technologies | lairdtech.com
866-928 8181 | St. Louis, MO
Designer and manufacturer of antenna, electromagnetic interference [EMI], telematics and thermal management solutions for the telecommunications, data-communications, computer, general electronics, network equipment, aerospace, defense, automotive and medical equipment industries.

LBA Group | lbagroup.com
252-757-0279 | Greenville, NC
RF & wireless telecommunications industry products & services including antennas, capacitors, inductors, shielding systems, test equipment, testing and technical services; RF Awareness & Antenna Co-Location Training.

LCR Electronics | lcr-inc.com
800-527-4362 | Norristown, PA
Specializes in the design, development and manufacturing of custom and standard EMI filters (RFI filters, EMC filters), EMC solutions, Motor controls, Electronic controls, Subsystem enclosures and back planes.

Leader Tech | leadertechinc.com
813-855-6921 | Tampa, FL
Manufactures electronic shielding  products including gasketing that help prevent electromagnetic or radio frequency interference (EMI/RFI) on circuit board applications.

Mag Layers USA | maglayersusa.com
800-427-4010 | Santa Ana, CA
LTCC components for RF | Bluetooth | WiFi | Zigbee applications including: chip antennas, baluns, diplexers, band pass filters, filters, inductors, chokes, coils, & ferrite beads. ISO 140001 certified, complete support for design through production. Free Samples - just call!

Nemko Canada | nemko.com
613 737 9680 | Ottawa, Ontario, Canada
TCB and CCB offering wireless certification and also a test laboratory covering wireless, EMI, safety, laser safety and telecom. We offer one-stop-shop solutions for worldwide compliance to standards such as FCC, RSS, CE Marking, UL, CSA, Korea, and Taiwan. We also have experienced design engineers who can help with product design and compliance strategies.

Orbel | orbel.com
610-829-5000 | Easton, PA
EMI/RFI shielding, board level RF shielding, multi-cavity shields, finger stock, chemical etched metal parts, metal stamping and electroplating services.

P & P Technology Ltd | p-p-t.co.uk
+44 (0) 1376 550525 | UK
Manufacturer of EMI | RFI shielding gaskets, meshes and vents.

Pepro | peprollc.com
1-814-676-5688 | Oil City, PA
A faraday cage protection system offering protection from lightning strikes, Electromagnetic Pulse (EMP), Electromagnetic Interference (EMI), and Radio Frequency Interference (RFI), lessens effects of Passive Inter-Modulation (PIM) when equipment is installed/maintained properly. Mobile radio sites designed for emergency temporary & portable mobile communications, incident command posts, remote base stations, Cell on Wheels (COWS), Site on Wheels (SOWS), Tower on Wheels (TOWS), Mobile Tower Units (MTU), Cell site On Wheels (cellular emergency services) and other unique applications.

Precision Micro | precisionmicro.com
+44 121 380 0100 | UK
EMI/RFI shielding solutions, from design to compliance. Precision manufacturing technologies from Ion beam and electroforming to photo etch and laser cutting.

RFI Corporation | rficorp.com
631-231-6400 | Bayshore, NY
EMI/EMC/RFI filters, high voltage magnetics & capacitors.

RFI Industries | rfi-ind.com.au
+61 3 8739 6700 | Australia
Designs, fabricates, installs and tests all types of Radio Frequency shielded enclosures; offers sales and service for a complete range of highly specialized EMI/EMC instruments, antennas and accessories; offers a wide range of testing capabilities and can handle items ranging from mobile phones to large military vehicles.

RFTek | rftek.net
919-622-4088 | Raleigh, NC
Consulting and contracting services for Electromagnetic Compatibility (EMC), Electrostatic Discharge (ESD): design, test and compliance.

SAS Industries | sasindustries.com
631-727-1441 | Manorville, NY
Specializes in the manufacture of EMI shielding, waveguide, connector, conductive, non-conductive, washer style, co-elastomer gaskets, fluid sealing products, static and reciprocating seals, and O-rings. Capabilities include die cutting, molding, laser cutting, extruding, and water jet cut gaskets, along with a wide variety of stocked sheet and roll goods.

Shielding Solutions Limited | shielding-solutions.com
01376 330033 | Braintree Essex UK
Design, manufacture & application of components and materials for the control of electromagnetic interference EMI and environmental sealing.

Stork Garwood Laboratories (now Element Materials Technology) | storksmt.com
888-427-4111 | Pico Rivera, CA
Product testing labs for EMI, EMC, reliability, vibration and environmental testing, FCC approval and CE certification testing, CE and CCC marking.

York EMC Services | yorkemc.co.uk
+44 (0) 1904 434440 | UK
EMC test equipment, consultancy and research, CPD & training, EMC & LVD testing.

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RF Cascade Workbook
RF Cascade Workbook is a very extensive system cascaded component Excel workbook that includes the standard Gain, NF, IP2, IP3, Psat calculations, input & output VSWR, noise BW, min/max tolerance, DC power cauculations, graphing of all RF parameters, and has a graphical block diagram tool. An extensive User's Guide is also included. - Only $35.
RF system analysis including
frequency conversion & filters

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