audio spectrum 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.

GB2RS podcast - RSGB Podcast

Texas Waco Area Live Police scanner - Mclennan County Sheriff and Fire, Waco and Area Police and Fire, listen to live police audio feed

A long wave receiving system - A long wave receiving system using FFT software Spectrum Lab

Longwave Information - DK8KW Longwave Information Slow-Voice, Transmitting compressed analog Audio Signals on LF

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

A PC as VLF receiver - Using a PC with soundcard as a VLF receiver, how to use your PC as a receiver for narrow-band signals in the VLF radio spectrum by DL4YHF

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

IC7000 HM151 Microphone Audio Mod - Modify IC 7000 handheld microphone HM 151

Kenwood TS-590S Audio Profiles - W1AEX Audio settings and general observations

TS-590S and Ham Radio Deluxe PSK31 CW - How to setup HRD with TS-590 for PSK31 RTTY and CW avoiding Mic audio on TX.

Receive VLF natural radio with Spectrum Lab - Using Spectrum Lab for the reception of VLF natural radio

Antique Radio Tubes For Sale  ^new - Radio Tubes, Audio tubes for sale, Antique Tube Supply - Your center for Vacuum Tubes for all your old Radio Tube gear.

Dagatron Instruments  ^new Priority listing - Shop for testing equipment. The catalogue includes: Multimeters, Clamp meters, Environment meters, Electric testers, EFM meters, Mechanical testers, Power analyzers, Resistance meters, Tachometers, Thermometers and Vibration meters. Brands liks Dagatron, Hibok, Kyoritsu, Brymen, Lutron.

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

Kenwood PG-5A cable - Home build a Kenwood PG-5A cable. This lead is the audio data cable for some of the Kenwood Mobile transceivers

Sound Card Interface with Tone Keyer - An improved version of the audio interface commonly used to connect a computer soundcard to a transceiver\'s receive and transmit audio circuits

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

Analog HF Antenna Analyser - A simple antenna analyser for the HF spectrum with a built-in signal generator with 3-digit LED frequency display.

VK5JST Antenna Analyser  ^new - Antenna Analyser kit assembled by PA0FRI