• RF wattmeter
• Contains sampler port, two meters and two element sockets
• Tailored for 2-way mobile applications in the 2-512 MHz range
• Elements sold separately (see accessories section below)
• Second socket is for more sensitive element to measure reflected power and accurately determine VSWR

The Bird 4527 is an RF wattmeter specifically tailored for 2-way mobile applications in the 2-512 MHz range. It features two meters and two element sockets, simultaneously displaying forward and reflected power. The second element socket enables the use of a more sensitive element to measure reflected power and accurately determine VSWR.

In addition, a variable RF probe provides a low power sample of the signal being measured and is available at a female BNC connector on the front panel, along with a control knob for adjustment. The sampled output can be connected to any RF signal monitoring device such as a frequency counter, spectrum analyzer, or oscilloscope. Select elements up to 1000 watts from 2-200 MHz and up to 500 watts from 200-512 MHz.

The Bird 4527 is not recommended for use in the antenna line of combined transmitter systems due to the risk of inter-modulation product generation.

Specifications

• Frequency Range: 2 -512 MHz (depending on element)
• Accuracy: 5% of full scale
• RF Sample Output: Fixed @ -53dB from 512-10 MHz decreasing to -70dB @ 2 MHz BNC (Female) port
• Connectors: N-Type (Female)

The Bird 4527 is compatible with a large number of elements, covering a wide range of frequency and power ratings.

Compatible elements can be viewed by clicking here and viewing tables 1, 2, 6, 13 and 14 in the 2 to 512 MHz range.

**Please note, elements are sold separately.**

All Bird plug-in elements are calibrated in accordance with meticulous Bird calibration procedures supported by a long history of mean deviation values to assure adherence to advertised specifications of current instruments, as well as field interchangeability with equipment purchased, used, and trusted in all the years since its introduction.

Bird offers several versions of its panel mount RF Wattmeter. The chart below provides an overview of the main features of each. Please note, frequency and power are dependent on the elements being used.