METROPWR FX-771: Versatile Vector Signal Meter with optional antenna switch for radio signals is getting better all the time, even for challenging tasks. The FX-771 is the centerpiece of the 'MetroPwr' measurement system that can be equipped with external sensors and switches for complex setups in the radio shack. This control and display unit is equipped with a powerful micro processor, most operation is done via the colour touch LC display. The integration into the existing station is achieved by a USB 2.0 connection to the computer. A Windows software is available which allows the control and display of all measurement data.

The external MetroPwr sensors can be installed up to 5m distant from the controller. We do offer sensors for HF up to power levels of 3kW (included) or 5kW (optional), as well as a sensor for VHF/UHF (200W, optional). These sensors are intended for indoor use (not weatherproof). They contain a directional coupler which sends the measured values to the FX-771. This device ships including a FX-3 sensor for high frequencies.

The measuremen tdata comprise everything you need to analyse and monitor a HF signal and the antenna system. Monitor the transmit power in real time, display functions like median, peak envelope and absolute power in Watt or dBm are available. The antenna is measure for VSWR, additional data is displayed like R, Z and |X|, the transmitted signal can be analysed for its modulation degree. This ensures the monitoring of the cleanliness of the signal.

Optionally a remote controlled 4-to-1 antenna switch is available. This allows the construction of complex switching systems for multiple antennas and radios. In combination with a MetroPwr sensor you can monitor all your antennas and radios. The remote switch does not require an extra power supply ,it is powered by the controller. Maximum distance from the FX-771 controller is 5m. For high accuracy measurements or measurements on higher frequencies a 'Bird 43' can be integrated into the instrumentation system with an optional interface. See product FX-43 interface for Bird-43.

Order No.
FX-771 Metropwr Vector Signal Meter with FX-3 Sensor 469.00
FX-3 HF sensor 160-6m, 3kW (as included in shipment) 139.00
FX-VU VHF/UHF-Sensor 200W 99.00
FX-4 4:1 Coax Switch 160-6m, 1kW 149.00
FX-43 I²C Interface for Bird-43, 149.00

UHF Sensor 500W, 150cm cable


FX-743 USB-Interface für Bird 43 Wattmeter FX-743 is an electronics board with USB connection for retrofitting into the well known Bird 43 wattmeter. The board is installed inside the Bird 43 enclosure by mounting it directly on the rear of the analog instrument. No mechanical modifications of the enclosure are rquired. The USB connector and on/off switch are accessible through the side openings originally intended for spare slugs.

A windows software (32 and 64 bit) is available for the FX-743 interface, which displays the measured values on the computer. The display is done analog and digital, but without the inertia of a real analog instrument. The respective measurement range of the slug can be selected in the software, this allows to take benefit of the vast frequency and power range the Bird 43 has to offer. The power display can be switched to peak, average or absolute levels in dBm. The developer of the FX-743 has put a strong focus on a fast update rate of the measurement data to achieve a near realtime display. The ADC converter is a 16 bit type, the data rate is 25 kbit/s. The FX-743 retrofit board requires four AA cells for operation. An on/off switch which is accessible from the side helps to extend the battery life.

For integration of the Bird 43 watt meter into the MetroPwr FX-771 Vector Signal Meter system a similiar kit is available which has a I²C bus interface (WiMo reference FX-43).


Order No.
FX-743 USB-Interface for Bird 43 Wattmeter 149.00
FX-43 I²2-Interface (RJ-45) for Bird 43 Wattmeter and FX-771 MetroPwr 149.00


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