audio spectrum

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

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

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.