ANYSECU SF-103 Portable Frequency Counter 2MHz-2.8GHz

The ANYSECU SF-103 is a compact and portable frequency counter designed for wireless enthusiasts and maintenance professionals. This updated version of the SF401 provides accurate measurements of continuous carrier signals from two-way radios. With two selectable frequency ranges, it covers 2MHz-200MHz and 27MHz-2800MHz, making it a versatile tool for testing various radio communications. Equipped with a high-quality TFT color display (240 x 320), this device offers clear visibility of frequency data and signal strength. The built-in TCXO (Temperature Compensate X'tal Oscillator) ensures stability with a 2 to 2.5ppm frequency response. It also features CTCSS/DCS decoding and a digital mode specifically for DMR radios. Designed for mobility, the SF-103 weighs only 113g and includes a built-in Li-ion battery for easy operation on the go. The simple four-button control system makes it easy to navigate settings, while the auto power-off function helps preserve battery life. Whether you are checking signal strength or testing frequency accuracy, the SF-103 delivers reliable performance in a pocket-sized form factor.