Start with a listening task: find local digital stations, connect satellite radio, follow a talk program, or explore how a radio works. The guides below offer practical checks and examples. Explore engineering explainers, model-specific owner guides and researched histories of receivers, programs and communications systems.
Listen and choose a receiver
Practical guides for local broadcasts, internet programs and the equipment that fits your listening routine.
Radio Scanners: Find Signals, Choose Equipment, and Set Up Alerts
Find local radio systems, choose compatible scanner equipment, and set up weather alerts with three practical guides.
HD Radio Explained: Stations, Receivers, and Reception
Find local HD Radio stations, tune HD2 and HD3 channels, and diagnose digital reception before choosing a receiver.
Affordable HD Radio: A Complete-Cost Buying Checklist
Compare budget and used HD Radio receivers by local stations, included accessories, audio connections, and a practical return-period test.
DAB and DAB+ Radio: Compatibility, Coverage, and Retuning
Check DAB+ receiver support and local coverage, understand multiplexes, and recover missing stations with a controlled retune.
Internet Radios: Choose a Receiver, Find Stations, and Set It Up
Choose a Wi-Fi radio, check your favourite stations and service support, connect it at home, and troubleshoot playback.
Internet Talk Radio: Find Live Shows, Replays, and Podcasts
Find official talk-radio streams and dated episodes, check schedules and time zones, and solve common playback problems.
HD Radio on an iPhone: Receiver Accessories, Apps, and Streaming
Distinguish HD Radio receiver accessories from station streams, check an old iPhone accessory setup, and choose a practical listening path.
Shower Radios: Reception, Controls, and Water-Resistance Checks
Choose a shower radio by documented water resistance, power restrictions, reception and usable controls, then test it in its intended location.
Virgin Boom Tube Speakers: Connections, Stereo Placement, and Model Differences
Distinguish the standard Virgin Boom Tube from the EX, inventory its power and audio parts, and evaluate detachable-speaker placement.
Set up satellite radio
Match a complete kit, choose a home listening path or identify and operate an older Sirius or XM receiver.
Plug-and-Play Satellite Radio: Car Setup and Compatibility
Plan a dock-and-play satellite radio installation, match its accessories, and check reception, audio, and activation in order.
Home Satellite Radio: Receiver Setup or Internet Streaming
Choose a home satellite receiver or streaming path, connect a stereo, and diagnose antenna, network, and audio problems.
Older XM Radios: Identify the Tuner and Check Compatibility
Find a legacy XM receiver’s Radio ID, distinguish tuners from accessories, and verify service and parts before spending money.
XM Passport: Identify the Tuner, Dock, and Compatible Host
Identify an XM Passport tuner, separate it from its cradle and host, and verify exact parts and service eligibility before completing a used system.
Delphi MyFi: Live Reception, Stored Audio, and Used-Unit Checks
Understand Delphi MyFi live reception and My XM stored playback, then evaluate an older receiver’s battery, accessories and demonstrated functions.
Delphi Roady: Audio Adapters, Power, and FM Connection Problems
Trace original Delphi Roady power, satellite reception and stereo audio separately, and diagnose silence, noise or FM-adapter problems in order.
SkyFi 2: Replay, Docks, and Everyday Operation
Use SkyFi 2 pause and replay, understand its temporary buffer, and identify documented accessory kits for this receiver generation.
XM Sportscaster: The Receiver and Finding a Live Game
Identify the XM Sportscaster, use its documented tuning controls, and verify a live game by date, feed, platform and receiver access.
Audiovox XR9: Identify the Receiver and Match Its Accessory Kits
Identify the Audiovox XR9, compare its documented XH9, XC9 and XB9 kits, and inventory the parts needed for a supported home setup.
Original Sirius Starmate ST1: Identification, Presets, and Song Alerts
Identify the original Starmate ST1, match its documented accessories, use channel presets, and understand MEMO and S-Seek song alerts.
Sirius Streamer GT SIR-SL1: Connections, Controls, and Troubleshooting
Identify the Streamer GT SIR-SL1, distinguish its labeled connections, and investigate power, antenna, reception, tuning and audio problems.
Understand radio technology
Explore a receiving signal chain, data-radio settings and the limits of miniaturization.
Software Defined Radio: A Beginner’s Receiving Guide
Understand an SDR signal chain, receive a public FM station, and troubleshoot drivers, bandwidth, gain, and overload.
FSK Transceivers: Bit Rate, Deviation, and Receiver Bandwidth
Understand FSK settings, work through frequency-tolerance arithmetic, and compare transceiver performance under stated test conditions.
Ultra-Small Radios: Antennas, Power, and the Whole Device
Interpret miniature-radio claims by separating chip size, antenna, power supply, range, and demonstrated system performance.
Receiver development and product history
Follow receiver development through dated announcements and surviving documents, with unresolved release questions clearly identified.
XAct ReGo: A Documented History of the 2005 Satellite-Radio Project
Separate XAct ReGo announcement claims, contemporary reporting and the surviving XTR-5 draft manual from unresolved retail-release history.
Programs and broadcasting history
Explore researched program histories, trace attributed recordings and distinguish dated lineups from current listening options.
Cooking with Emeril: Radio History and Finding the Recipes
Explore the cooking show’s radio history and find recipes through authoritative sources, with practical checks for choosing a recipe.
XM Take Five: Channel History and Its Television-to-Radio Lineup
Explore the documented early history of XM Take Five, its television and radio programming, and how to trace a show using dated evidence.
Conexión Thalía: Radio History and Finding Attributed Recordings
Explore Conexión Thalía’s radio history and trace recordings through dated network, host, station and guest evidence.
Radio engineering: signals, hardware and networks
Interpret measurements and research, follow receiver architectures, and compare the choices behind radio links.
Audio and Modulation Analyzers: What to Measure and What It Means
Choose measurements for audio quality and analog modulation, interpret results with their test conditions, and keep a useful measurement record.
Over-the-Horizon Microwave: How Troposcatter Links Work
Understand tropospheric scattering, compare backhaul paths, and read range, throughput and availability claims as a complete link specification.
Secure SDR Hardware: Firmware, FPGA Designs, and Radio Traffic
Distinguish FPGA design protection, trusted boot and updates, key handling, and communications encryption when evaluating an SDR system.
Millimeter-Wave Amplifiers: Gain, Noise, Power, and Bandwidth
Read millimeter-wave amplifier specifications, distinguish supply voltage from power, and compare complete operating points using a worked example.
Inside an HD Radio Receiver: What the Processor Does
Trace an HD Radio signal through tuning, digital processing, audio and metadata, and distinguish chip capabilities from complete receiver features.
Harmonic Frequency Combs: From Laser Modes to Terahertz Signals
Understand comb teeth, harmonic mode spacing and beat frequencies, and separate a demonstrated laser result from proposed communications applications.
Omni Cell Base Stations: Coverage, Capacity, and Rural Networks
Understand omni versus sectorized cells through the Ericsson RBS 1140 example, and separate coverage, traffic capacity and backhaul questions.
Communications systems through time
Researched retrospectives on dispatch networks, software-defined handhelds and early wearable communications.
Motorola iDEN: Push-to-Talk, Dispatch Networks, and Their Legacy
Understand iDEN’s cellular and dispatch roles, read its history with operator-specific dates, and assess legacy handset claims.
AN/PRC-152: Multiband Radio Architecture and SDR History
Read the AN/PRC-152 as an engineering case study, separating RF hardware, waveform software, architecture, cryptography and model options.
Commander Pack and Gauntlet: Early Wearable Communications
Explore the documented Commander Pack and CommanderGauntlet concept, and evaluate wearable communications through power, weight, interfaces and evidence.