FA-5 USB Frequency Counter Module - 26.5GHz Acquisition Meter With OCXO

Alright electronics enthusiasts and RF engineers, this FA-5 frequency counter is seriously impressive for its capabilities! With a massive frequency range up to 26.5GHz, this USB acquisition module handles everything from basic audio frequencies to sophisticated RF measurements. It features two independent channels - CH1 covers 1Hz to 300MHz with both 50 ohm and 1M ohm input impedance options, while CH2 handles 30MHz to 6GHz with 50 ohm impedance. The accuracy is phenomenal: with CH1, you get 0.001Hz resolution at 10MHz with a 0.1-second gate time, and it gets even better with longer gate times. CH2 delivers 1Hz resolution at 1GHz with the 0.1-second gate. The internal reference is a high-quality OCXO (Oven Controlled Crystal Oscillator) at 10MHz with excellent year aging of only 0.5Hz - that's professional-grade stability. The module measures 106x30x142mm and weighs just 350g, making it compact enough for bench work or portable applications. It comes with a DC12V adapter and USB cable for easy connectivity to your computer. With selectable gate times of 0.1 second, 1 second, or 10 seconds, you can optimize between speed and precision depending on your measurement needs. The operation modes include CH1 frequency measurement, CH2 frequency measurement, and self-check mode for verification. Whether you're working on radio equipment, testing oscillators, developing RF systems, or just need precise frequency measurements for your projects, this counter delivers laboratory-grade performance in a compact, affordable package. For anyone serious about frequency measurement across a wide range, this module is an absolute workhorse that won't disappoint!