Radio Frequency (RF) Circuits (04)

Circuit Collection: HF-VHF-UHF, Microwave, 900MHz, 2.4GHz, AM-FM-ASK-FSK-PSK, SSB-DSBSC. Transmitter and Receiver, Modulator-Demodulator, Amplifier, Oscillator, WiFi Radio, GSM Radio, Wireless devices, Synthesizer, PLL, AGC, Measurement & Metering, Fox Hunting, Direction Finder, GPS

About Project Links

• HF Signal generator
• Simple AM Radio Receiver & Amplifier
• Bug detector
• 175KHz inductive pulse receiver (PDF)
• 200-400 MHz voltage controlled oscillator
• AM/FM/SW active antenna
• RF Sniffer < .5 to >500 MHz
• Demodulator Schematic/Design
• 73MHz remote controller hallogen light
• CB (27MHz citizens band) receiver
• CB (27MHz citizens band) 2.5W transmitter
• AM to FM conveter
• AM BCB radio receiver
• Regenerative shortwave receiver
• 7MHz SSB Transceiver
• DSBSC (Double Side Band Supressed Carrier)
• Frequency Synthesizer
• Digital Automatic Gain Control (AGC)
• Four Channel Wireless Transmitter and Receiver
• PLL synthesizing oscillator (1)
• PLL synthesizing oscillator (2)
• PLL synthesizing oscillator (3)
• 2N2222 40 Meter CW/DSB Transceiver
• Yaesu FT-736R doppler compensation
• Phased lock loop schematic
• 30M PSK31 Transceiver
• SOP receiver (PDF)
• SOP direct conversion receiver
• Receiver
• 30m direct conversion receiver