1.8MHz-50MHz 0.5W-120W SWR HF Short Wave Standing Wave Meter SWR and Power Meter + Battery + OLED FM AM CW SSB
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Specifications
- Brand Name
- AISANRAY
- Output Type
- LINE OUT (AUDIO OUT)
- Built-in Battery
- No
- Recommended Headphone Maximum Impedance
- < 32 Ohm
- Input Type
- LINE IN (AUDIO IN)
- High-concerned chemical
- None
- Certification
- None
- Origin
- Mainland China
- Choice
- yes
- semi_Choice
- yes
Product Description
Two versions:
without button ( old version)
with button ( new upgrade version)
Short wave power standing wave meter digital standing wave meter power meter
The new firmware adds ant antenna power and eff antenna efficiency display
Test video :
//www.youtube.com/watch?v=GCq2oGIYW-w
//www.youtube.com/watch?v=DDHUbllD5bw
Frequency range: 1.8mhz-50mhz
Measurement range: 0.5w-120w (up to 210W, long-time FM, am, CW mode is recommended to be less than 120W, SSB mode is optional)
Measurement accuracy: ＜± 5%
Standing wave range: 1.0-99.99
Access interface: sl16 (block m)
Charging interface: type-C
Aluminum alloy shell size: 63mm * 88mm * 38mm (excluding protruding parts)
Battery capacity: 1000mah
Insertion loss: ＜ 0.1dB
Charging shows red light, full green light and working yellow light
When the standing wave is greater than 2.5, the buzzer prompts intermittently
If the standing wave is greater than 3.0, the buzzer will prompt continuously
Battery undervoltage, buzzer continuous prompt
The version information is displayed after power on, and the power standing wave measurement interface and battery power are displayed after 3 seconds. English interface,
Pros & Cons
Pros
- Wide frequency (1.8MHz-50MHz) and power (0.5W-120W) range for versatile HF radio use
- OLED display for clear, easy-to-read measurements of SWR, power, and antenna efficiency
- Available in two versions: basic old model and upgraded button model
- Compact, portable design for field use by radio operators
Cons
- No built-in battery, requires external power source per specs
- No included calibration tools or instructions in the product data
- Partial product description cuts off before listing full technical specifications
- No brand warranty or customer support details provided
Common Questions
What is this device used for?
It is a standing wave ratio (SWR) and power meter for HF short wave radio use, with support for OLED display of antenna power and efficiency, per the specs and description.
What frequency and power ranges does this meter support?
It operates from 1.8MHz to 50MHz, with a power range of 0.5W to 120W, per the product title.
What additional features does the updated version have?
The new upgraded version with buttons adds antenna power and efficiency display to the meter's functions, per the product description.
What headphone impedance is recommended for use with this meter?
The recommended maximum headphone impedance is less than 32 Ohms, per the specs.
Where is this power meter manufactured or shipped from?
The product origin is listed as Mainland China per the provided specs.
Product information last updated on December 20, 2025