Specific Conducted Susceptibility Requirements Mil-Std 461E

CS101 - Power Leads (30 Hz to 150 kHz)

The test is applicable to equipment and subsystems AC and DC power leads, not including returns. If the EUT is operating under DC power, testing is required only between 30 Hz to 150 kHz. If the EUT is operating under AC power, testing is required starting at the second harmonic of the power frequency, and extends up to 150 kHz. These requirement is applicable on the following platforms:

Submarines
Surface Ships
Space Equipment and Systems
Army Aircraft - All
Navy Aircraft - All
Air Force Aircraft - All
Ground Systems - Army
Ground Systems - Navy
Ground Systems - Air Force

CS103 - Antenna Port-Intermodulation (15 kHz to 10 GHz)

Required for front-end receivers, such as communications receivers, RF amplifiers, transceivers, radar receivers, acoustic receivers, and electronic ware receivers. The intent of this test is to control response of antenna connect receiving subsystems to in-band signals resulting from potential intermodulation products of two signals outside the intentional passband of the subsystems produced by the non-linearity in the subsystem. The EUT should not exhibit any modulation beyond specified tolerances. This test has specific implications that must be identified in the procurement documentation, and may be applicable to the following platforms:

Submarines
Surface Ships
Space Equipment and Systems
Army Aircraft - All
Navy Aircraft - All
Air Force Aircraft - All
Ground Systems - Army
Ground Systems - Navy
Ground Systems - Air Force

CS104 - Antenna Port Rejection of Undesired Signals (30 Hz to 20 GHz)

Intent of this test is to control response of antenna connected receiving devices or subsystems to signals outside of the intentional passband of the device or subsystems produced by non-linearity in the device or subsystems. The applications are similar to CS103, required for front-end receivers, such as communications receivers, RF amplifiers, transceivers, radar receivers, acoustic receivers, and electronic ware receivers. This test has specific implications that must be identified in the procurement documentation, and may be applicable to the following platforms:

Submarines
Surface Ships
Space Equipment and Systems
Army Aircraft - All
Navy Aircraft - All
Air Force Aircraft - All
Ground Systems - Army
Ground Systems - Navy
Ground Systems - Air Force

CS105 - Antenna Port-Cross modulation (30 Hz to 20 GHz)

Intent of this test is control response of antenna connected receiving subsystems to modulation being transferred from an out-of-band signal to an in-band signal. This can be caused by a strong out of band signal near the operating frequency of the receiver that modulates the gain in the front end of the receiver and adds amplitude varying in formation to the desired signals. The applications are similar to CS103 and CS104 and are required for front-end receivers, such as communications receivers, RF amplifiers, transceivers, radar receivers, acoustic receivers, and electronic ware receivers. This test has specific implications that must be identified in the procurement documentation, and may be applicable to the following platforms:

Submarines
Surface Ships
Space Equipment and Systems
Army Aircraft - All
Navy Aircraft - All
Air Force Aircraft - All
Ground Systems - Army
Ground Systems - Navy
Ground Systems - Air Force

CS109 - Structure Current-Spike (60 Hz to 100 kHz)

This requirement has limited applications, and is intended to simulate a spike in voltage. The EUT must continue to operate without malfunction, degradation of performance, or deviation, beyond accepted tolerance range. Most applications are within the area of the following platform:

Submarines

CS114 - Bulk Cable Injection (10 kHz to 200 MHz)

This requirement has a wide application, and is found on many test plans. The requirement is applicable to all interconnecting cables, including power cables. The EUT shall not malfunction when subjected to a bulk injection probe drive level. It is a requirement on the following platforms:

Submarines
Surface Ships
Space Equipment and Systems
Army Aircraft - All
Navy Aircraft - All
Air Force Aircraft - All
Ground Systems - Army
Ground Systems - Navy
Ground Systems - Air Force

CS115 - Bulk Cable Injection-Impulse Excitation

This test is to protect equipment from fast rise and fall time transients that may be present due to platform switching and external transient environments such as electromagnetic pulse, EMP. The test will verify the ability of the EUT to withstand the impulse signals that are coupled on to the EUT associated cabling. This test replaces the old chattering relay test, referenced in Mil Std 461 C-RS 106. This requirement is applicable on the following platforms:

Submarines
Surface Ships
Space Equipment and Systems
Army Aircraft - All
Navy Aircraft - All
Air Force Aircraft - All
Ground Systems - Army
Ground Systems - Navy
Ground Systems - Air Force

CS116 - Amped Sinusoidal Transients (10 kHz to 100 MHz)

The basic concept of this test is to simulate electrical current and voltage waveforms occurring in platforms from natural resonances. The requirement is applicable to all electrical cables interfacing with the EUT, and individually on each power lead. The testing should verify the EUT's ability to withstand damped sinusoidal transients coupled onto the EUT associated cables and power leads. Power returns and neutrals do not need to be tested individually. This test is applicable for the following platforms:

Submarines
Surface Ships
Space Equipment and Systems
Army Aircraft - All
Navy Aircraft - All
Air Force Aircraft - All
Ground Systems - Army
Ground Systems - Navy
Ground Systems - Air Force