Audio

A 12V powered, 4x15 Watt quad audio amplifier

ON6MU 12 Watt amplifier schematic

A circuit which had been used in many other application before The configuration described here ...

A collection of audio amplifier projects by N1HFX

Here is a rather nice audio filter for use with Ham Radio gear It features ...

On this page you will find one of my designs An Audio Selection Panel ASP ...

This article investigates SSB signal quality during the CQ WW 2015 SSB contest It highlights ...

Article with answers to common questions as what cable types to user cable length how ...

Build an audio Processor and clipper optimised for SSB transmitter

A very effective AF Adaptor with built in noise blanker and 30 Hz CW filter ...

Review of common audio speakers for mobile setups

An homebrew audio mixer for the ham shack by GW6ITJ

Easy circuit that provide good gain to weak audio signals

This circuit consists of microphone amplifier and a high pass filter Suitable to improve signal ...

Analyzes audio from 10 Hz to 20 kHz input from microphone or wave file Variable ...

Audio Spectrum Analyzer for Real time FFT OscilloScope Frequency counter voltmeter noise and distortion meter ...

Many low power SSB rigs and kits lack dedicated speech processor circuitry although most modern ...

Automated voice announcements project built to have an automated way to deliver club announcements via ...

A Bass Eq Pre amplifier for high impedance PU by ON6MU

Bluetooth headsets are very common with cell phone users As such many amateurs may already ...

When one operates at low power on SSB speech processing becomes almost essential to get ...

Have you searched and searched for a good speaker for your ham radio That perfect ...

Design Guidelines for JFET Audio Preamplifier Circuits By Mike Martell N1HFX

Design guidelines for Op Amp audio preamplifier circuits by Mike Martell N1HFX

An interesting article on how build an optimal sounding communications loudspeaker capable to optimize sound ...

Build this noise reducing system to enhance audio of your speaker A project by kg4jjh ...

An excellent guide on choosing external audio equalizers by K3DAV

AB4BJ optimizing audio settings on the flex 5000A and heil microphones

Throughput improvement for the FT726R - Tapr PSK modem

Designed for the FT 817 this audio speech compressor centered on the Analog Devices SSM2165 ...

Audio processing and ALC in the FT-897D

How adjust DSP settings for your trasmitter when using Heil Sound microphones

Setup for the Yaesu FT-2000 by John K3UR

ICOM audio DSP settings and pin connections for heil sound headphones

Make an otherwise fine radio even better change one resistor and one capacitor in the ...

Improving the intelligibility of an SSB transmissions What is important when processing speech Which bands ...

Circuit designs for IC audio amplifiers by N1HFX

Adding 2 RCA inputs 1 high impedance filtered audio output RCA 3 3 HIGH PASS ...

Kenwood radios audio DSP settings for Heil Sound headphones

440 Hertz peaked low pass audio filter experiments

ON6MU Low Power amplifier

A microphone preamplifier schematic for hand-helds by ON6MU

Mic online calculator , Microphone Dynamic Range Calculator, Microphone Sensitivity Calculator

Audio setup at N2RIT built around the Yaesu FT 950 abd the Heil Sound PR ...

Improving your own signal quality by GM3SEK

RF Speech Processor project with complete schematic by Jagodic YU1OXB

Sending the Audio from the Receiver to the Recorder from the Recorder to the EQ ...

This project enables the transition from DX to contest mode smoother by automating hardware configuration ...

Soundcard audio tools and toys experimental ideas and utilities Signal Generator Frequency counter instrument tuner ...

Guidelines for optimal speaker placement inside our ham radio shacks

Articles published by the Radio Society of Great Britain basic principles construction of a simple ...

Reviving the spirit of early ham radio experimentation the CW Flea is a contemporary Morse ...

Design Guidelines for Bipolar Transistor Audio Preamplifier Circuits By Mike Martell N1HFX

Optimizing audio settings on the Kenwood TS-990 by AB4BJ

Yaesu DSP audio settings for Heil Sound headphones

Using Hi-Fi Audio with FT-1000. Includes many FT-1000D modifications too by K6JRF

Inspired by Heathkit author aimed to enhance his Yaesu FT 817 with audio and RF ...