Index 2 - Radio Electrical Equipment SeekIC.com
#radio
#electrical equipment
#RF
#communication
#wireless
#signal processing
#transmitter
#receiver
#antenna
#frequency tuning
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TRF Radios
A small Medium Wave antenna from a walkman with digital radio and a variable capacitor (VC) with two sections connected in parallel from an old Russian radio (2x280pF). It has been noted that in areas with strong signals, optimal performance...
Intelligent home lighting control switch transmitter and receiver circuit
This design aims to create a long-distance wireless remote control switch lighting control system, which consists of a transmission system and a reception system. The system utilizes wireless transceiver modules for RF transmission and reception. The transmitting portion mainly comprises...
Radio remote control circuit
The receiver circuit depicted in the figure requires the insertion of a plug into the radio headphone jack. When the radio receiver detects a signal from the transmitter, an audio signal is output from the jack. This signal is then...
RF Actuated Keying Monitor
Sending Morse on a rig without a sidetone is not impossible, but is not particularly pleasant either. This battery-powered monitor has been designed to provide an audible indication of keying for those whose rigs lack a CW sidetone. Its sensor...
RF Induction Meter
This instrument measures inductances from 0.1 microhenry to 3 millihenries, divided into four ranges set by a switch. It operates from 12 volts and is powered by eight AA type cells attached to the unit. Initially, Drew Diamond's unit in...
TA8136S Radio Control Transmitter Ic - Toshiba Semiconductor
TB6556FG is a 3-phase full-wave sine-wave PWM brushless motor controller. It features sine-wave PWM control and includes a built-in triangular-wave generator with a carrier cycle defined as fosc/252 (Hz). The device also offers a built-in lead angle control function that...
Remote Operated Spy Robot Circuit
A remote-operated spy robot circuit can be controlled using a wireless remote controller. It captures audio and video information from the surroundings and transmits this data to a remote station via RF signals, with a maximum range of 125 meters,...
LED RF Signal Strength Meter
RF Signal Strength Meter circuits are popular RF measurement devices. This circuit is one of the simplest but very useful circuits that satisfies your desired accuracy. The heart of measurement is high accuracy but easy to use Logarithmic Detector AD8313...
Rf Upconverter For Tvro Subcarrier Reception
This converter utilizes a 40673 MOSFET to heterodyne the 5.5 to 8 MHz TVRO subcarriers to the FM broadcast band, enabling the use of a stereo receiver for high-fidelity stereo reception of TV sound subcarriers. Z1 is a prepackaged 100...