Dosy TFB-3001 Meter

The Dosy TFB-3001 is an in-line SWR/Modulation/Watt meter with three lighted analog meters, designed for use with CB and amateur (Ham) radios. It provides simultaneous readouts of SWR, AM Modulation, and peak watts, and some variants (like the TFB-3001-S) include a built-in frequency counter.
Key Specifications and Features
The Dosy TFB-3001 meter (including the ‘S’ variant which adds frequency counter functionality) is a versatile tool for radio enthusiasts.
Measurement Functions: Measures SWR, AM Modulation, and Peak Watts simultaneously.
Frequency Range: The meter operates within a frequency range of 1.8 MHz to 50 MHz.
Watt Ranges: It features three selectable watt ranges: 0-10, 0-100, and 0-1000 watts.
Display: It uses three separate 2.5-inch black-faced, lighted analog meters for easy simultaneous monitoring of different parameters.
Compatibility: It is suitable for AM, USB, and LSB (Single Side-Band) frequencies, with the ‘S’ designation models having specific features for SSB users, such as a momentary toggle for reading without voice.
Connectivity: Designed for in-line connection with any radio without hard-wiring.
Power: A power pack is included to light the meters.
User Reviews
User and editorial reviews offer insights into the meter’s performance and quality.
Performance: According to various sources, the meter “does work well and provides accurate readings” of wattage and frequency.