Used BIRD 4421 #9144493 for sale

BIRD 4421 is an electronic test equipment manufactured by BIRD Electronic, designed for the broadcasting industry. 4421 is a two port, 100 Watt, 50 ohm RF wattmeter. It has an incredibly wide range of measurement capabilities, from 0.2 MHz to 1 GHz. It boasts precision accuracy of ± 0.5 dB and provides easy-to-read, digital displays of measurements coupled with analog needle deflection. BIRD 4421 features a standalone "Power Density Plotter", which allows for detailed plotting of relative power levels. The plotter can be used for channel-by-channel, frequency-by-frequency, or any-channel/frequency trace analysis. This unique, on-chip, plotter enhancement allows the user to easily and quickly measure the power of any known frequency in the range of 0.2 MHz to 1 GHz. 4421's display range encompasses a variety of output levels, from -20 dBm to +40 dBm. This should suffice most users in terms of dynamic range, though input dynamic range settings can be adjusted for optimization. With its multi-line display, BIRD 4421 provides easy reading of several frequency bands simultaneously. In addition, the Advanced Dual Trace Mode allows users to quickly compare power levels of two different frequencies or regions. 4421 is designed to meet the needs of the broadcasting industry, as well as exploring potential applications in other types of testing, such as CATV and mobile base station testing. BIRD 4421 is designed to be versatile and user friendly. Its design enables both bench-top and field use, with backlit displays for low-light environments and rugged construction for rugged use. 4421 is also designed with safety in mind. It features built-in safety mechanisms, including current limiting, over-voltage protection, lightning protection, and over-temperature protection, to ensure the safe operation of the device. Overall, BIRD 4421 is an incredibly versatile, safe, and user-friendly RF wattmeter that can accurately measure signal levels from 0.2 MHz to 1 GHz. It should be a welcome addition to any broadcast professional or any engineer who may require precise power measurements across a wide bandwidth.