An ultra-low power RF interface for wireless-implantable microsystems
#RF
#ultra-low power
#implantable
#microsystems
#wireless communication
#medical devices
#biomedical
#radio frequency
#transceiver
#embedded systems
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Four channel RF remote control
This is a simple RF transmitter circuit utilizing the Holtek HT-12E encoder chip and an AM 418MHz transmitter module (WZ-X01). The use of hybrid RF transmit/receive modules simplifies the construction of the RF remote control. The transmitter can operate with...
Radio harmonic detection circuit
The demodulation and detection circuit is a radio AM intermediate frequency (IF) signal amplifier that performs two-stage detection using diode Dr. It extracts the audio signal from the IF carrier detection and subsequently sends it to the power amplifier stage....
Radio Field Indicator Circuit
An RF field indicator is needed to verify power stages and transmitter antennas. This radio field indicator allows for the measurement of radiated energy from antennas.
An RF field indicator is a crucial device in the field of telecommunications and broadcasting....
Icom IC-751 (IC 751 IC751) transceiver mods reviews software and diagrams
The 751 required turning the volume control almost to the 12 o'clock position before achieving any noticeable volume, which raised concerns about potential issues. To address this, all electrolytic capacitors associated with the audio path, specifically after the detector stage...
Wireless Data Communication system
This project is used to communicate or transmit a text message from one place to another place through wireless. The text message is encrypted by using the Microcontroller and the encrypted message was transmitted through wireless. At the receiver end...
QRP CW TRANSCEIVER
This is a 3-W, single-circuit board, VFO-controlled CW transceiver for 40 or 30 meters, featuring a direct-conversion receiver with audio filtering, Receiver Incremental Tuning (RIT), and speaker level audio volume. The transmit frequency is generated by Q1 and its associated...
RF Inductance Meter
This RF inductance meter measures RF chokes in the 500 nH to 50 µH range. A simple solution was required to measure hand-wound RF inductors in a secondary lab setting. The user intended to utilize this device occasionally and did...
RF OSCILLATOR CIRCUITS
A widely recognized circuit is the Hartley oscillator, which is characterized by a tapped coil within the LC tank circuit. The tap point of the coil is grounded. The oscillator's amplifier section functions as a common-emitter amplifier, resulting in the...
Rf-actuated-relay
Automatic antenna switching or RF power indication can be achieved with this circuit. Relay will key with less than 150 mW drive on 2 m.
The circuit designed for automatic antenna switching or RF power indication utilizes a relay that is...