HJ 1136-2020 (English Version) PDF

Scope: This standard specifies the content, methods and other technical requirements for electromagnetic radiation environmental monitoring of medium-wave broadcasting transmitting stations. This standard applies to electromagnetic radiation environmental monitoring of medium-wave broadcast transmitting stations. 2 ≥80dB≥80dB The lower detection limit of the probe is ≤0.05V/m The lower detection limit of the probe is ≤0.001A/m and the upper detection limit is ≥500V/m and the upper detection limit is ≥10A/m Frequency error 50dB > 40dB The lower detection limit of the probe ≤ 0.2V/m The lower detection limit of the probe ≤ 0.04A/m and Upper detection limit ≥ 100V/m and upper detection limit ≥ 5A/m Probe detection limit isotropy 4.3 Basic electrical performance requirements for non-frequency selective broadband electromagnetic radiation monitors must evaluate the isotropy of the entire monitoring system, each Monitoring of medium-wave broadcast transmitting stations under homotropic <1.5dB monitoring conditions should be carried out during normal broadcasting periods, covering the different working conditions of the transmitter corresponding to the antenna under test. 5 Monitoring methods 5.1 5.1.1 2

HJ 1136-2020 history

2020 HJ 1136-2020 Environmental Monitoring Method for Electromagnetic Radiation of MW Broadcast Transmitting Station