RF Generator CDG 7000 | Immunity | 4 kHz - 400 MHz
Powerful high-frequency generator & amplifier
IEC / EN 61000-4-6
IEC 60601-1-2 Ed. 4.1 / IEC 61000-4-39
MIL-STD-461 CS114
ISO 11452-4
NAMUR
Are you an installer or operator of plants, systems or devices? Then you are certainly familiar with the EMC problems that occur when powerful assemblies with high interference emissions and highly sensitive electronics are operated in close proximity to each other. Here it is important to investigate the existing interference potential. This concerns interference voltages, interference currents, interference field strengths and magnetic fields. For electromagnetic interference fields according to IEC 61000-4-6 and IEC 61000-4-39 or IEC 60601-1-2, it is best to use our CDG 7000 combination device. For manufacturers of military electronics and aerospace systems, the CDG 7000 fulfils the military standard MIL-STD-461 CS114.
— Please note our new CDG 7000-200 models, which support BCI testing up to 500 mA in closed-loop mode (additional accessories required), as well as the CDG 7000-200-4, which extends the CDG 7000-200’s lower frequency range. The frequency ranges of the CDG 7000-25 and 7000-75 have also been expanded!
The CDG 7000 is a new test generator for all standards for immunity to conducted disturbances and magnetic fields induced by radio-frequency fields, such as IEC 61000-4-6 - including BCI tests (ISO 11452-4). The CDG 7000 generates interferences as defined in IEC / EN 61000-4-6 - immunity to conducted disturbances induced by radio-frequency fields. The standard describes a test setup in which these high-frequency interferences can be influenced on a EUT without a complicated structure with antennas, field instrumentation and shielded rooms. By using coupling networks and coupling clamp's sine waves are induced directly into power and signal lines. The test object retains its original place in the device structure, so that the system can be tested in its overall function.
The versatile combination device includes
- an RF signal generator, an RF power amplifier, a 3-channel RF voltmeter and a directional coupler.
The test generator CDG 7000-75-10 in combination with our test sets is suitable for tests according to IEC 60601-1-2 Ed. 4.1 and IEC 61000-4-39.
The CDG 7000-E is another device that does not contain an internal RF power amplifier to allow customers to use flexible external amplifiers.
- Top price / performance ratio!
- The compact device consists of an RF signal generator, an RF power amplifier, a 3-channel RF voltmeter and a directional coupler
- Frequency range (signal generator) 4 kHz - 1200 MHz
- The RF generator for conducted and magnetic field tests is available in five different versions:
- NEW (extended fequency range!):
CDG 7000-25: 10 kHz - 250 MHz, amplifier 25 W
Maximum test level: 10 V (15 V) with 80 % AM (without 6 dB)
Built-in directional coupler (200 W, 10 kHz - 250 MHz), with HELIA 7 - Basic USB, LAN software
- CDG 7000-75: 100 kHz - 400 MHz, amplifier 75 W
Maximum test level: 30 V (40 V) with 80 % AM (without 6 dB)
Built-in directional coupler (200 W, 100 kHz - 500 MHz), with HELIA 7 - Basic USB, LAN software
- NEW (extended fequency range!):
CDG 7000-75-10: 10 kHz - 400 MHz, amplifier 75 W
Maximum test level: 30 V (40 V) with 80 % AM (without 6 dB)
Built-in directional coupler (200 W, 10 kHz - 500 MHz) with HELIA 7 - Basic USB, LAN software
- CDG 7000-E: Frequency range of the generator/power meter (4 kHz):
9 kHz - 1200 MHz, no integrated amplifier
Built-in directional coupler (200 W - optionally up to 500 W, 10 kHz - 1 GHz) with HELIA 7 - Basic USB, LAN software
- N E W :
CDG 7000-200 now with a 200 W RF amplifier and a frequency range of 100 kHz – 400 MHz. BCI Tests up to 500 mA closed loop. The CDG 7000-200 can also be supplemented with the CDG 7000-200-4: Frequency range 4 kHz – 1 MHz.
- The included application software (HELIA 7 - Basic) enables extensive reporting functions and EUT monitoring, (HELIA 7 - BCI required for BCI testing)
- Simple expansion with external amplifier via 2nd generator output
- SCPI command set enables easy integration into own software systems
- Interfaces: USB, LAN, GPIB (option)
- Temperature measuring input, e.g. for monitoring and displaying the BCI clamp temperature
- Input for external pulse modulation
- Configurable, digital 8-channel user port
- Warranty 3 years
The models listed can be supplemented with additional accessories and combined with one another.
Like every Schlöder GmbH product, the RF generators are complemented by a comprehensive range of accessories. For the CDG 7000, suitable equipment is available for testing in accordance with IEC 61000-4-6 and others.
Coupling / decoupling networks (CDNs)
EM clamps for cable diameters up to 20 mm and up to 35 mm, and decoupling clamps for cable diameters up to 20 mm or 35 mm
Matching network 10 kHz - 150 kHz for the CDN EMCL-20
Various current monitoring probes, e.g. foldable versions or bulk current injection clamp (BCI)
6 dB attenuators with 
The CDG 7000 series has been expanded to include the CDG 7000-200 model, which is equipped with a 200-W high-power amplifier and covers a frequency range from 100 kHz to 400 MHz. The interference generator achieves in BCI tests up to 500 mA closed loop. The integrated directional coupler offers 250 W of power, a frequency range from 10 kHz to 400 MHz, and a coupling attenuation of 45 dB.
To complement the lower frequency range, the CDG 7000-200-4 was additionally developed as an accessory, extending the operating range to 4 kHz to 1 MHz. With the addition of the CDG 7000-200-4 accessory, the CDG 7000-200 also complies with the requirements of MIL-STD-461H, which has been in effect since April 2026.
The following Schlöder instruments are recommended for BCI-based tests in accordance with MIL-STD-461 CS114 (current 10 kHz – 200 MHz):
- CDG 7000-75-10
or CDG 7000-200 with accessory - Pre-Amp for CS 114
- CDN BCI-P1_MT1
- Attenuator CDG 7020-20W: Only required for level 5 tests
- 2 x CDG A 50-10W: 50 Ohm 2W at 200 mA, 50 Ohm 8 W at 400 mA
- Helia 7 - BCI
We provide the test system from the factory with "Helia 7", an uncomplicated application software. This enables extensive reporting functions, as well as EUT monitoring. In addition, the package includes a self-test. And last but not least, you have the possibility to initiate automatic test sequences based on different standards. You can also use the "Direct Mode" to subject the EUT to further different tests. Integration into your own software systems is easy thanks to the integrated SCPI command set.
If you want to perform additional BCI tests, the Helia-7 BCI software is available as an option. We have developed this program to enable you to control, analyze and document BCI tests. At Schlöder, service is a top priority. You therefore receive a three-year manufacturer's warranty and can contact customer service at any time if you have any questions.
The CDG 7000 not only meets the requirements of IEC 61000-4-6 and other industrial EMC standards, but also helps ensure the safety, reliability, and operational readiness of electronic equipment in military applications. Under extreme operating conditions, electronic systems such as communication equipment, radar systems, weapon systems, navigation devices, and surveillance systems are expected to perform with a high degree of reliability.
A wide variety of electronic systems are installed in close proximity within military vehicles, aircraft, and naval vessels. In these environments, immunity to electromagnetic interference can be mission-critical. As a result, military EMC standards are often more stringent than their civilian counterparts.
In April 2026, MIL-STD-461G (2015) was superseded by MIL-STD-461H. For CS114 testing, the revised standard introduced an additional common-mode current limit of 77 dBµA in the frequency range from 4 kHz to 1 MHz, along with further clarifications and requirements regarding test procedures.
The CDG 7000-200, when used together with the CDG 7000-200-4 accessory, meets these new MIL-STD-461H CS114 requirements and is fully suitable for compliance testing in accordance with MIL-STD-461H. Users should also take into account the updated requirements relating to test configurations and test procedures specified in the revised standard.
- Combined functionality: signal source & power amplifier in one device
- User-friendly control: intuitive software for flexible test sequences
- High output power & accuracy for demanding tests
- Easy integration into existing EMC laboratories
EMC tests are used to characterise the electromagnetic compatibility of electronic or electrotechnical products or devices. EMC immunity testing involves analysing immunity to external interference. Measuring electromagnetic immunity is a sub-area of EMC testing. It generally deals with the determination of interference emissions.
The use of EMC measurement technology is an effective way to optimize the immunity of modern digital technology. The reasons for this development include inadequately solved EMC problems and the high cost pressure in the use of electronic components.
Immunity to interference describes the degree of a system's ability to continue to operate without functional failure or malfunction, as well as unaffected by an interference quantity that has a defined and targeted effect on the device under test.