Free Radio Books

Secret Signals

UVB-76 "The Buzzer" Primer

USAF EAM Broadcasts

Uno Dos Quatro (Havana Moon)

The Radio Spectrum

Shortwave Spectrum Quick Guide

Ethics & Operating Procedures

US Amateur Radio Bands

EchoLink Users Guide

Important Radio Links

Radio Intrigue

Signal Identification on Reddit

Signal Identification Wiki

Mystery Signals

Numbers & Oddities


Enigma 2000


HF Underground

The Conet Project

The Conet Project - Recordings

University of Twente Web SDR

Milcom Monitoring Post

Shortwave Info

Utility Planet

Utility DXers

The Spooks Archive

HF Propagation

Free Radio Software

AirSpy - Software Defined Radio

PDW - Pager & ACARS Decoder

Artemis Signal Identifier

Audio Spectrum Analyzer

MMSSTV - Slow Scan Television

FLDIGI Decoder

Friends of Strange Beacons

Books By Curt Rowlett

Labyrinth13 (PDF)

The Curse of Palmyra Island (PDF)

Riding On Your Fears (PDF)

(Or read them online at Internet Archive)


Other Writings & Works of Interest

My Experiences in the Bermuda Triangle