audio amp
36 links
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Ham Radio : Personal Pages- XE1YJS Joaquin
- Ham radio, Mir contact samples in Real audio, packet and some links
[ Hits: 734 | Votes: 49 | Rating: 7.21 ]
- VK2FLR DX Sounds Archive
- Real Audio files containing interesting examples of VHF DX propagation from Sydney, Australia
[ Hits: 1368 | Votes: 2 | Rating: 10 ]
- Microwave audio samples
- 10GHz Rainscatter audio files
[ Hits: 1870 | Votes: 0 | Rating: 0 ]
- Numbers Stations
- About numbers stations, and their criptic transmissions, where to listen to them and some audio recording samples by fascinating shortwaves
[ Hits: 2557 | Votes: 5 | Rating: 5.4 ]
- Sounds of the Commercial and Military Digital Station
- Information and digital audio samples of various modem modulation types
[ Hits: 1649 | Votes: 4 | Rating: 3.5 ]
- National RF, Inc.
- National rf provides consulting engineer services, and manufactures direction finding antennas, test equipment, communications receiving equipment and adjuncts, satellite antennas, voice amplification and audio equipment.
[ Hits: 789 | Votes: 0 | Rating: 0 ]
- SoftRock-40
- The SoftRock-40 is a small, low-cost, good-performing "software defined radio" receiver that plugs into a computer USB port and delivers I-Q audio signals to the computer's sound card. It was designed by Tony Parks, KB9YIG and Bill Tracey, KD5TFD as an "SDR sampler project" for hams everywhere to easily try out software defined radio.
[ Hits: 8537 | Votes: 9 | Rating: 7 ]
- New Sensor Corporation
- Distributor of Sovtek, other current production vacuum tubes, and NOS tubes. Distributor of electronic parts for audio and musical instrument amplifiers. Manufacturer/ Distributor of Electro-harmonix effects.
[ Hits: 1257 | Votes: 2 | Rating: 2.5 ]
- Radio Teletype
- All about RTTY, including audio samples, rtty software, video exaples and rtty related links
[ Hits: 286 | Votes: 0 | Rating: 0 ]
- Unusual HF Propagation Phenomena
- This page has a collection of audio samples from unusual HF propagation phenomena, from round-the-world propagation to moonbounced signals , and to ducted transmission.
[ Hits: 505 | Votes: 0 | Rating: 0 ]
- N9TEW tubes
- N9TEW is supplier of vacuum tubes for ham,audio & antique radio purposes.
[ Hits: 825 | Votes: 1 | Rating: 10 ]
- HamCalc v1.3
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- HamCalc is a free collection of calculators for radio amateurs include Antenna ERP calculations,
Attenuators, Audio Filter design, Coil Winding,
Decibels, Great Circles map and calculator, HF Filters, HF Traps, Metric conversions OP Amps
QRA Locator to Latitude/Longitude, Radio Horizon calculator, Resonance Satellite orbit calculator Timer calculations (555 timer)Zener Diode calculations Download zip By G4VWL
[ Hits: 28796 | Votes: 114 | Rating: 5.57 ]
- Sine Wave Generator
- Freeware windows Wave Generator use the sound card's output as sine wave output. A built in sweep algorithm is used by audio hackers to measure frequency repsonses of their amplifiers
[ Hits: 20052 | Votes: 100 | Rating: 4.93 ]
- Spectrum Analyzer Real-time FFT
- Eight-channel Audio Spectrum Analyzer is a set of Real-Time Multi-Channel Gauges for investigation of data accepted from any ADC you will want or 16-, 24- and 32-bit ADC of sound card. WDM drivers support. FFT Spectrum Analysis, OscilloScope, Frequency counter, AC/DC voltmeter, Signal-to-Noise Ratio, Signal-to-Noise and Distortion, Spurious-Free Dynamic Range, Effective Number Of Bits, Total Harmonic Distortion, Inter-Modulation Distortion, Phase Shift. Special modes of dual-channel FFT spectral analysis: Separate channels spectra, Spectra of digital sum, difference, product of two signals, Spectrum of digital product of original signal and its fundamental, Spectrum of Real and Complex Transfer Function, Cross Spectrum. Standart weighing of spectra according IEC and CCIR. Oscilloscope modes (for dual-channel ADC) are: original signals, sum, difference, dependence of one channel on another, amplitude distribution of input signals.
[ Hits: 11311 | Votes: 9 | Rating: 7.77 ]
- Audio Preamp
- Easy circuit that provide good gain to weak audio signals
[ Hits: 3817 | Votes: 2 | Rating: 3.5 ]
- Audio spectrum analyzer
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- Analyzes audio from 10 Hz to 20 kHz, input from microphone or wave file, Variable sample rates (8000 Hz, 11025 Hz, 22050 Hz, 44100 Hz)
Variable transform sizes (1k, 2k, 4k, 8k)
Upper and lower limits adjustable
Continuous, averaged, peak hold
[ Hits: 30286 | Votes: 54 | Rating: 3.82 ]
- Audio processor for SSB transceiver
- This circuit consists of microphone amplifier and a high pass filter. Suitable to improve signal readability.
[ Hits: 1446 | Votes: 1 | Rating: 1 ]
- Hombrewing an HF Transceiver
- This page will describe the construction of a multi band SSB transceiver with all its components Band Pass Filter, Oscillator/Modulator unit, RX/TX Mixer TX Amp I.F. Amplifier AGC VFO Driver amplifier Receive audio amplifier Final amplifier Low pass filter Digital display and VFO stabiliser
[ Hits: 4365 | Votes: 6 | Rating: 8.33 ]
- Designing Op Amp Audio PreAmplifiers
- Design guidelines for Op Amp audio preamplifier circuits by Mike Martell N1HFX
[ Hits: 1639 | Votes: 4 | Rating: 3.25 ]
- The smk-1 on 20m
- Taking the venerable SMK-1 design to 20m and adding an RF amp, audio filter, and a TiCK Keyer ... by Wayne McFee, NB6M
[ Hits: 918 | Votes: 0 | Rating: 0 ]
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