Diamond SX40C – 300W 144 – 270 MHz SWR Power Meter


Introducing the Diamond SX40C – 300W 144 – 270 MHz SWR Power Meter, a compact and versatile tool designed for both mobile and base station installations. Its cross-needle design allows you to measure SWR and output power simultaneously, providing accurate readings in a convenient package.


This power meter features two meters that indicate forward and reflected power, enabling you to obtain direct readouts of the SWR value by simply observing the crossing of two pointers. With a frequency range of 144 – 470 MHz and an input impedance of 50 Ohms, the SX40C is compatible with a wide range of devices.

Featuring a switchable power range of 30W or 300W (note: 70% of full scale for the 200 MHz band), this power meter offers flexibility to suit your specific needs. For the 220 MHz band, calibration at 70% of the direct readout is recommended. The power accuracy of 10% at full scale ensures reliable measurements.

Measuring just 85 (W) x 87 (H) x 95 (D) mm, this compact power meter is ideal for on-the-go testing and installations. Its UHF input/output connector ensures compatibility with various devices, further enhancing its versatility.

In summary, the Diamond SX40C – 300W 144 – 270 MHz SWR Power Meter delivers efficiency, accuracy, and convenience in a compact form factor. Whether you need to test mobile devices or perform base station installations, this power meter is an indispensable tool for any radio enthusiast or professional.

Additional information

Weight 0.6 kg