An antenna is used to capture RF signals, and these are then amplified through a single transistor stage. This is connected to a basic transistor flasher circuit, which is biased to only flash ...

An ordinary RF detector using tuned LC circuits is not suitable for detecting signals in the GHz frequency band used in mobile phones. The transmission frequency of mobile phones ranges from 0.9 to 3 ...

The classic example is an open circuit or short at the end of an RF ... which is simply an open section of transmission line. With a special RF detector probe, [Allen] is able to sweep along ...

A pickup coil (L2) with a capacitor (C2) forms the signal detector which resonates in response ... VR needs adjustments to keep the buzzer and LED off. The circuit is immune to other forms of RF ...

The present IP is a VCC Detector (VDT) circuit, which prevents the possibilities of causing Flash writing failure or internal operation failure by uns ...

Bosch RF835E is a wireless PIR/microwave intruder detector. It uses artificial intelligence to detect motion and provide immunity to false alarms caused by pets or animals. An integral RF transmitter ...