Diamond Antenna SX-20C Cross Needle SWR/Power Meter

Diamond Antenna SX-20C Cross Needle SWR/Power Meter

The Diamond SX-20C is a compact cross-needle SWR and power meter designed for accurate monitoring of forward power, reflected power, and Standing Wave Ratio (SWR) without requiring calibration. Covering HF, 6-meter, and 2-meter amateur radio bands, it provides simultaneous real-time readings in a lightweight, portable design suitable for both mobile and base station installations.

Key Features

• Cross-needle analog SWR and power meter
• Simultaneous forward power, reflected power and SWR display
• Direct-reading cross-pointer SWR indication without calibration
• Covers HF, 6 m and 2 m amateur radio bands
• Frequency coverage: 3.5–30 MHz, 50–54 MHz and 130–150 MHz
• Selectable 30 W and 300 W power ranges
• Ideal for QRP, mobile and standard amateur radio operation
• 50 Ohm impedance for seamless station integration
• Precision analog meter movement for easy readability
• Measures forward RF output power
• Measures reflected RF power
• Quick SWR verification during antenna tuning
• No external power required
• Low insertion loss for minimal signal attenuation
• SO-239 (UHF female) RF connectors
• Compact footprint for desktop or mobile installations
• Suitable for transceivers, amplifiers and antenna systems
• Heavy-duty internal directional coupler design
• Simple inline installation between radio and antenna
• Excellent accessory for antenna tuning and station maintenance
• Lightweight construction for portable operation
• Reliable Diamond Antenna build quality
• Designed for continuous amateur radio service
• Ideal for HF, 6 m and VHF station monitoring
• Professional-grade RF measurement solution

Typical Uses

• HF amateur radio stations
• 6-meter transceiver installations
• 2-meter VHF operation
• Antenna tuning and matching
• Mobile radio installations
• Base station power monitoring
• Routine station maintenance

In the Box

• Diamond Antenna SX-20C Cross Needle SWR/Power Meter
• User manual