audio analyzer

SWR analysis of a G5RV antenna - Plotting SWR of a G5RV Antenna with a RigExpert analyzers

Qsorder - Contest audio recording for N1MM. external "plug-in" which adds a QSO audio recording function.

Listen to National Hurricane Center Skywarn Nets - Live audio of the National Hurricane Center’s Skywarn Nets. This live feed covers several different states, and locations throughout the US including: TX, LA, MS, AL, FL, GA, SC, NC, VA, MD, DE, PA, NJ, NY, CT, RI, MA, VT, and ME

GB2RS podcast - RSGB Podcast

Memphis Police Radio - Memphis Police and Shelby County Sheriff dispatch

Denver Police Radio - Live audio feed from Denver Colorado Police

Ingham County Public Safety - Listen to Ingham County Michigan Public Safety, County Sheriff, Police and Fire

Las Vegas Rural Nevada Highway Patrol - Live feed for NHP rural areas of Moapa Laughlin Primm Alamo Indian Springs

Amplitude Modulation - Amplitude Modulation (AM) is essentially a mixing process where the audio modulating signal is mixed with the radio frequency carrier

Audio filters and speakers - Review of common audio speakers for mobile setups

K7RLD Remote Ham Operation - Detailed instructions on how to setup a remote station using Ham Radio Deluxe as remote control and skype for audio, even how to correctly setup Wake On Lan by K7RLD

Elecraft K3 audio review - Review of the Elecraft K3 Transceiver by David Wood G3YXX.

Yaesu FT-1000D AGC Mods - Fixing notice subtle distortion on SSB receive audio on the Yaesu FT-1000D

Offshore Radio radio broadcast Staions - live stream - A list of all Long Wave radio broadcast station that you can hear in the most of Europe with web stream audio links.

Voice Keyer for Android - Audio recorder and player for Android. Perfect for Ham Radio (Amateur Radio) operators as a voice keyer for SSB contests or voice beacon.

EvoSpice - A numerical optimizer (solver) for LTSpice IV. Uses a fast evolutionary algorithm. You can use EvoSpice to design high efficiency power supplies, audio filters, low noise RF amplifiers and an endless list of other applications

Xoscillo - A multiplatform software oscilloscope and logical analyzer software that acquires data using an arduino or a parallax USB Oscilloscope

Yaesu DSP Settings and Pin Connections - Yaesu DSP audio settings for Heil Sound headphones

Elecraft DSP audio settings - DSP Settings and Mic Connections for Elecraft K3

Icom DSP Settings and Pin Connections - ICOM audio DSP settings and pin connections for heil sound headphones

Kenwood DSP Settings and pin connections - Kenwood radios audio DSP settings for Heil Sound headphones

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.

Spectrum Analyzer Tutorial and Basics - A summary or tutorial about the basics of the spectrum analyzer, what it is and what it is used for.

IW3HEV embedded antenna analyser - An interesting project of the popular IW3HEV antenna analyzer in and embedded solution by PA3CKR.

Digital HF Antenna Analyser Project - This antenna analyzer measures complex impedance over the 1.6 - 33 MHz HF spectrum by ZL2PD