Reflected Power Protection Sample Clauses

Reflected Power Protection. Transmitters must be equipped with effective protection against abnormal VSWR conditions. The facilities shall be as follows: - 7.3.1. Directional couplers shall be used to measure the reflected power and shall have a directivity of at least 30dB and a coupling factor sufficient to provide a signal of sufficiently high level to prevent unstable and/or spurious operation of the associated electronic tripping circuits by stray RF or other electrical pick-up. The output signal from the directional coupler shall be at radio frequency and shall be brought out from the coupler via a standard co-axial socket, e.g. "BNC", "N", etc. This requirement is to facilitate adjustment of the directivity of the coupler by the connection of measuring equipment.