Diamond Antenna SX200 Power Meters
Best diagnostic tool for amateur radio enthusiasts and station operators.
The Diamond Antenna SX200 Power Meters are an essential tool for amateur radio enthusiasts, designed for testing both base and mobile installations. These compact meters measure forward/reflected power and SWR with a single sweep meter, featuring switchable RMS or peak power readings on an illuminated display for clear visibility. With a wide frequency coverage from 1.8 to 200 MHz and three power ranges (5, 20, and 200 watts), these meters are versatile for numerous transceivers and require minimal power for testing, making them a superb addition to any amateur station.
$99.99
Owner Satisfaction
4.7
/ 5
Category Rank
23
/ 1072
#23 in Communication Radio Accessories
Price vs Category Average
+0%
Below average
Frequency Range
1.8200
/ - MHz
Who it's for
- Multi-band operators needing coverage across HF and VHF frequencies
- Radio hobbyists prioritizing reliable antenna tuning and transmitter safety
- Operators preferring intuitive analog displays without complex power requirements
Who should skip it
- UHF enthusiasts working with 440 MHz amateur bands
- High-power operators running kilowatt-level amplifiers
- Users wanting simple, battery-free illumination for low-light environments
Performance breakdown
Frequency Versatility
Covers the most popular HF bands with reliable, consistent performance.
Measurement Precision
Switchable RMS and peak readings provide highly accurate power monitoring.
Build Durability
Rugged metal housing stands up to demanding mobile and base environments.
Ease of Use
Intuitive interface makes SWR and power checks quick and effortless.
Display Visibility
Illuminated meter face ensures clear readings in low-light shack conditions.
Installation Flexibility
Compact footprint fits perfectly in both vehicle dashboards and desktop setups.
Key Specs
Frequency Range
1.8-200 MHz
Power Ranges
5/20/200W
Connector Type
SO-239
Features
Illuminated, Peak Power/SWR
Power Source
12 Vdc
Mounting Type
Vehicle Mount
Material
Metal
Accessory Type
SWR/Wattmeters
Features
- Measures forward/reflected power and SWR
- Compact for base and mobile use
- Switchable RMS or peak power
- Illuminated meter for easy reading
- Wide 1.8-200 MHz frequency range
- Low power requirement for testing
- Multiple power ranges available
- Suitable for amateur radio transceivers
What customers say
The Diamond Antenna SX200 is highly regarded by amateur radio operators for its exceptional reliability and build quality. Users consistently describe this analog SWR and power meter as a durable workhorse, built to last for decades in the radio shack. Its primary strength is the trusted accuracy provided by the clear, easy to read cross needle display, which simultaneously shows forward power and SWR. This instantaneous visual feedback is preferred for quick tuning adjustments across the HF and VHF spectrum up to 200 MHz. Despite minor notes about external illumination requirements, the SX200 remains an essential, high quality piece of test equipment that offers superb longevity and excellent value for dedicated operators.
Know before you buy
Yes, the meter requires a 12 Vdc power source to operate the illumination and the peak power measurement functions.
Absolutely. Its compact design and versatile mounting options make it equally suitable for permanent base station installations and mobile vehicle setups.
The SX200 is equipped with standard SO-239 connectors, which are compatible with the PL-259 connectors commonly found on most amateur radio coaxial cables.
It features a switchable mode that allows you to toggle between RMS (average) and peak power readings, providing flexibility for different modulation types.
Yes, the frequency range of 1.8 to 200 MHz covers the HF bands as well as the 2-meter VHF band, making it a great multi-purpose tool for your station.
The meter offers three selectable power ranges: 5 watts, 20 watts, and 200 watts, allowing you to choose the most accurate scale for your specific transceiver's output.
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$100