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Comtest Engineering
Field Reference Source
The Field Reference Source is a stable, broadband reference generator. The source is designed for rapid evaluation of an EM test site and its performance. The field reference source uses a precision transmission line pulser to generate an accurate stable output.
- Frequency spacing selectable 1 MHz or 5 MHz.
- Frequency range 10 MHz - 1.5 GHz.
- Precision stable field reference.
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Conducted Reference Source
The Conducted Reference Source is a stable, broadband generator. The source is designed for rapid evaluation of conducted emission measurement tools such as line Impedance Stabilisation Networks (LISN).
- Precision stable reference generator.
- Frequency range: 9kHz - 50MHz.
- Self powered from mains voltage.
- Highly stable and repeatable output.
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Shielding Solutions
Shielded rooms are rooms constructed of metal (usually also having shielded doors), inside of which equipment can be tested without interference from external fields such as lightning or high-frequency (HF) radiation. An anechoic chamber is a shielded room, covered on the inside with absorbers (often Ferrite) which has a completely homogeneous field.
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Shielded Rooms
The shielded rooms are mostly custom designed to meet the customer objectives in the most economical way. With the experience bundled in our team we can act as design partner and architect to the user. With our CAD/CAM design we reach the highest level of accuracy required to build high performance rooms.The rooms are constructed from 2mm hot galvanized steel plate with 2 u zinc layer. Over the years, the single layer shielding has proofed that it is maintenance free without deterioration of performance.
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Semi Anechoic Chamber
A Semi Anechoic Chamber is constructed as a shielded room, with absorbing materials on all walls and ceiling, thus simulating an Open Area Test Site, without interference from environmental EM-field pollution. Its main application is in EM emission testing according to Commercial and Military standards. The floor is a full reflecting ground plane.With some additions these chambers can be used for Full Compliance Immunity testing as well. Field strengths up to 200 V/m can be generated when the necessary precautions are taken. |
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Compact Full Anechoic Chamber
The Compact Full Anechoic Chamber Model is used to perform compliant radiated immunity tests in accordance to EMC-standards including IEC 61000-4-3 and EN 61000-4-3.
- Full compliance immunity test site for the frequency range of 80 to 1000 MHz.
- The frequency range can be extended to 18 GHz, using partial mounting of additional pyramid absorbers.
- Shielding Effectiveness according to EN 50147-1
(>110dB at 80 MHz)
- Meets field uniformity specifications per IEC 61000-4-3.
- Suited for free space emission tests, CISPR 16-1-4.
- Total ferrite coverage on all planes, including full floor coverage.
- A flush mounted, fiber optic controlled, turntable can be installed in the floor.
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Shielded Swing Door
The Shielded Swing Doors are designed for high performance performance shielded enclosures. The doors can be mounted in welded EMP bunkers and in modular panel Faraday enclosures. The Shielding characteristics are achieved by use of a double beryllium copper finger contact strip. In EMC applications, ferrite tiles can be affixed to the standard door leaf. The open/close mechanism is located on the outside for ease of future access. Automatic and Semi Automatic opening and closing available. |
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Shielded Sliding Door
The Fully Automatic Shielded Sliding Door is designed for RF and EMP-tight enclosures. It can be integrated in Shielded Rooms as well as for other types of shielding. The standard Shielded Door is equipped with a double beryllium copper finger contact strip system. The locking and motion mechanism is based on a full electronic logic system, which can be activated from either side of the door. The door has an automatic safety feature which will stop motion if the door is obstructed. |
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EMC & RF 
