CB Radio Manuals andCircuits
#CB radio
#communication
#RF circuits
#transceiver
#antenna
#manual
#wireless
#telecommunication
#signal
#broadcast
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active short wave antenna
The circuit presented illustrates that despite the availability of various new components and technologies, it remains feasible to design useful and interesting circuits. The circuit utilizes two well-established transistors, the BF256C and the BF494. Along with the necessary resistors and...
Wireless-fm-microphone
Utilize standard RF wiring precautions. Optimal speech clarity is achieved by employing an electret microphone. For music reproduction, replace it with a dynamic microphone element.
In the design of audio circuits, particularly those involving speech and music, the choice of microphone...
1-2Mhz broadcast transmitter
T1 is a low impedance output transformer with a conversion ratio of 5000 to 8 ohms.
The low impedance output transformer, T1, is designed to match the output of an audio amplifier to the impedance of the speaker load. The specified...
Composed of TDC1808/TDC1809 digital coding control circuit diagram
The TDC1808/TDC1809 is a pair of wireless remote control transmitter and receiver components. They utilize an internal antenna to transmit both digital and analog signals. These components are suitable for various wireless remote control devices. Key features include compact size,...
Antenna Combiner
The Antenna Combiner (A3021) is an active combiner designed to accommodate four 50-ohm coaxial antenna connections. It combines the signals from these four inputs, resulting in a net gain of approximately +11 dB. The A3021 is specifically intended for use...
HAM ATS3a digital
The stock ATS-3A transceiver has been modified to transmit BPSK31 signals, specifically "cq ok1iak." The firmware was altered to enable serial line control through the DASH paddle pin while in straight key mode, which disables the paddle in remote control...
Broadcast circuits
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ANTENNA DESIGN FOR FM TRANSMITTER
Two aluminum rods, each of length "L" in meters, are connected through an insulator as illustrated in the figure. A 75-ohm cable is fed from the center, similar to a conventional TV antenna.
This configuration describes a basic antenna system utilizing...
Wireless Bug detector
This fairly simple circuit makes it possible to place such a wall as a conduit to locate. It is a conduit for power, no water or gas-seeker. The only requirement is that there is tension on the line. The antenna...