This standard specifies methods for measurement of the luminance signal-to-noise ratio of video magnetic-tape recording systems operating on CCIR System Mu (525/60) with NTSC color encoding. See [Bl], [B2], [B3], [B4], and [B5]

定价： 56元 / 折扣价： 48 元

This guide contains information and recommendations pertaining to measurement of induced electrical noise generated by high voltage direct-current (HVdc) power transmission systems and measurement of the performance of filtering equipment designed to mitigate that noise.

定价： 56元 / 折扣价： 48 元

The recommended practice defines test approaches to quantify the interference of passive intermodulation (PIM) from handheld devices, base stations, and satellite earth stations. Current PIM noise tests for communication components/devices/antennas/systems do not work well at extremely low PIM levels or high transmission power levels, for example where PIM noise falls below -150 dBc.

定价： 56元 / 折扣价： 48 元

定价： 54元 / 折扣价： 46 元

This standard specifies consensus standard methods, instrumentation, and facilities for measurement of radio-frequency (RF) signals and noise emitted from electrical and electronic devices in the frequency range of 9 kHz to 40 GHz, as usable, for example, for compliance testing to U.S. (47CFR15) and Canada (ICES-003) regulatory requirements.1 It does not include generic or product-specific emission limits. Where possible, the specifications herein are harmonized with other national and… read more international standards used for similar purposes. read less

定价： 203元 / 折扣价： 173 元

This standard sets forth uniform methods of measurement of radio noise emitted from low voltage electrical and electronic equipment in the frequency range of 10 kHz to 1 GHz. Methods for the measurement of radiated and power-line conducted radio noise are covered and may be applied to any such equipment unless otherwise specified by individual equipment requirements. These methods apply to the measurement of individual components, units, or systems comprising components and units. Additional… read more methods may be added to this standard to fulfill future requirements as needed. Unless specifically called out, this standard is not intended for certification or approval of avionic equipment. The method for validation of test sites such as open area sites and absorber-lined chambers for frequencies in the range of 30 MHz-1000 MHz is contained in this standard. read less

定价： 53元 / 折扣价： 46 元

This standard sets forth uniform methods of measurement of radio noise emitted from lowvoltage electrical and electronic equipment in the frequency range of 10 kHz to 1 GHz. Methods for the measurement of radiated and powerline conducted radio noise are covered and may be applied to any such equipment unless otherwise specified by individual equipment requirements. These methods apply to the measurement of individual components, units, or systems comprised of components and units. Additional… read more methods may be added to this standard to fulfill future requirements as needed. Unless specifically called out, this standard is not intended for certification/approval of avionic equipment. read less

定价： 59元 / 折扣价： 51 元