medium wave modulator 2
#modulator
#medium wave
#RF
#transmitter
#AM
#signal processing
#broadcast
#electronics
#communication
#wireless
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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....
wireless telephone line spy circuit
This design outlines a phone bug circuit. The wireless telephone line spy circuit is capable of transmitting phone conversations to a nearby FM radio. The circuit must be connected to a standard phone line. In the circuit, the first transistor...
Wireless IR Headphones circuit
This wireless infrared (IR) headphones circuit project enables the transmission of audio signals through an infrared connection. The circuit consists of two main components: a transmitter and a receiver. Unlike radio frequency (RF) transmitters, both parts of this application must...
Wireless Telephone Line Spy
This is a phone bug circuit. This wireless telephone line spy circuit can be used to transmit the phone conversation to a nearby FM radio. This circuit must be...
The phone bug circuit is designed to intercept and transmit audio signals...
Reflex Radio Receiver
The RF signal is transmitted from the antenna through CI to a tuned circuit consisting of LI and C2. One end of L2 delivers the RF signal to the base of Q1 for amplification, while the other end connects to...
RF Dummy load
The load described here is capable of handling up to 10 watts of RF power for a couple of minutes and is designed for the widely used 50 ohms impedance. It consists of ten parallel connected 560 ohms 1 watt...
Dummy Transmission Circuits for Subcutaneous Transmitter
The project involves the development of a miniature transmitter suitable for implantation in a rat's body, capable of transmitting 416-bit data samples at a rate of 400 samples per second. It is designed to have a detection range of three...
Telegraph Transmitter in the Pilot Radios Radio Design magazine 1930s
The TPTG transmitter has been transformed into a modern TNT model. This transmitter can utilize the existing K-111 power pack for both the transmitter and receiver, eliminating the need for a separate power supply unit. Building this compact transmitter allows...
The KD2BD ATV AM Video Modulator
A 2N3904 in the base circuit sets the Q point of the amplifier. FM subcarrier audio at 4.5 MHz is also injected at this point through a 3300 ohm resistor and a DC blocking capacitor. A high frequency 5-watt RF...