M3933/25-42S

Attenuators

M3933/25-42S is a kind of attenuator for radio frequency transmission line systems. It is designed to reduce the transmitted power of the drive levels of the high frequency antennas, thereby protecting the system’s customers’ circuits and equipment from damage or disruption.

M3933/25-42S is basically composed of switches, resistors, wire harnesses, resistors, and input and output connectors. The resistors are mainly composed of a wire-wound resistor rated 250V and "K" series ceramic resistors that can be adjusted. The wire harness is a high-quality coaxial cable rated for 500MHz. The connectors used are of high quality, with waterproof and dust-proof features.

Application Fields of M3933/25-42S

M3933/25-42S is widely used in broadcast transmission systems, cable television and communication systems. It is especially suitable for systems with complex and variable load changes. It can be used to reduce the level of intermodulation products generated by the cable systems, and to reduce the power transmission level of the system.

M3933/25-42S can also be used in the military field. It is used to reduce the reflected power in radar systems, reduce the power output of communications systems, and reduce the transmitted power of portable military communication equipment.

Working Principle of M3933/25-42S

M3933/25-42S works on the principle of an attenuator: its design is to reduce the output or input signal power level by a fixed amount, determined by the connected resistors. For example, if the input signal power is 100 W, the attenuator\'s resistor combination will reduce this power to 10 W at the output.

The M3933/25-42S is composed of two separate parts, each with a separate set of resistors. One part is used to reduce the input signal power, and the other part is used to reduce the output signal power. The adjustment of the resistors is done manually, and is usually done by adjusting the screws below the resistors.

The M3933/25-42S also has the capability to monitor the input and output signals, including the level of power, transmitter gain, and the amount of loss. This helps in maintaining the constant power level in the cable system, and in other areas, to ensure that the system works properly and efficiently.