distortion

distortion

Operating Modes : ESSB

• Transmitter Bandwidth and Splatter - Technical Comments about Transmitter Intermodulation, Distortion, and ESSB (or Hi Fi Wide Fi SSB) audio or over equalization by W8JI
  [ Hits: 258 | Votes: 1 | Rating: 10 ]

• Kenwood TS-2000X Tx Distortion fix - VE2ZAZ and distorted audio in SSB on some models prior 2006
  [ Hits: 1205 | Votes: 3 | Rating: 10 ]

• Yaesu FT-1000D AGC Mods - Fixing notice subtle distortion on SSB receive audio on the Yaesu FT-1000D
  [ Hits: 604 | Votes: 4 | Rating: 6.5 ]
• FT-1000 Mark V and MD 200 - Fixing audio distortion with the Yaesu FT-1000 Mark V and Yaesu MD 200 microphones
  [ Hits: 452 | Votes: 2 | Rating: 1 ]
• FT 1000MP MK V and Keyclicks - YaesuFT1000MK V stands out with improved close-spaced SSB transmit performance, reversing a trend seen in other modern radios. Featuring a class-A mode, it offers clean HV finals when kept out of ALC. However, two significant flaws persist: the noise blanker causes receiver IM distortion, and the transmitter lacks wave-shaping on CW, resulting in pronounced keyclicks. Preliminary tests reveal strong keyclicks +1kHz and -1kHz, prompting a combined modification to address both issues.
  [ Hits: 31 | Votes: 0 | Rating: 0 ]

• 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: 11316 | Votes: 9 | Rating: 7.77 ]

• Audio Spectrum Analyzer - OscilloMeter  ^pop - Audio Spectrum Analyzer for Real-time, FFT, OscilloScope, Frequency counter, voltmeter, noise and distortion meter, phase shift meter. Multi-Tone Sound Frequency Sweep Generator. White, pink noise.
  [ Hits: 89801 | Votes: 328 | Rating: 6.2 ]
• Analyzing SSB Signal Quality in CQ WW Contest - This article investigates SSB signal quality during the CQ WW 2015 SSB contest. It highlights the importance of adhering to the ideal SSB signal profile, the impacts of intermodulation distortion, and the consequences of poor-quality signals. The analysis underscores the need for well-tuned equipment to ensure cleaner, more efficient signals and, consequently, a more enjoyable and spacious experience for contest participants and amateur radio operators.
  [ Hits: 41 | Votes: 0 | Rating: 0 ]

• Intermodulation - Intermodulation distortion, commonly known as Intermods, is a type of interference that can occur in any non-linear junction.
  [ Hits: 542 | Votes: 1 | Rating: 10 ]

• Circuit Improvements for the TS-440S - Some improvements for the Kenwood TS-440S, including distortion level in SSB in transmitted signals, Lack of crispness in the RX audio and Limited transmit frequency coverage.
  [ Hits: 621 | Votes: 2 | Rating: 5 ]

• Antuino - Antenna Test Equipment - Antuino is an accurate instrument that can be used in the field to measure SWR, field strength, modulation, etc. In the lab, it can be used to sweep filters, measure gain, distortion, frequency response, etc. It works upto 150 Mhz. On the third harmonic, it is usable on 435 Mhz band as well (with reduced sensitivity).
  [ Hits: 305 | Votes: 0 | Rating: 0 ]

• Using Oscilloscope to monitor Modulation - Scope out your SSB or AM audio modulation. A ham radio related guide on using an Oscilloscope to check exciter and amplifier modulaton for low distortion and system linearity by NU9N
  [ Hits: 542 | Votes: 1 | Rating: 9 ]

• Two Tone Generator - A two tone generator is an essential test gear made with just four transistors that helps you evaluate your amplifiers, mixers, receivers for distortion. Distortion makes all the difference between a pleasant receiver and a horrible sounding one, between a clean transmitter and bad, splattering one on air.
  [ Hits: 81 | Votes: 0 | Rating: 0 ]

• 2m to 70cm Transverter Circuit - A 70cm / 432 MHz Transverter Project transverter circuit is an electronic device that converts a radio signal from the 2 meter to the 70 centimeter band and vice versa, allowing a single transmitter/receiver to be used for both bands. It consists of an IF stage, local oscillator, frequency multiplier, and amplifier. The circuit must be designed for minimal signal loss, noise and intermodulation distortion.
  [ Hits: 81 | Votes: 0 | Rating: 0 ]