Antennas

InnovAntennas FMDX-9
InnovAntennas 14-Element Yagi
Antenna Performance Specialties APS-13
Channel Master Stereo Probe 9
Winegard HD-6000
Winegard HD6055P
Winegard HD6065P
Antennacraft FM6
Antennacraft FM10
Antennacraft FM13
Finco FM-4G
Finco FM-5
Triax FM 5
Triax FM 8S
Körner 9.2
Körner 15.12
Körner 19.3
High-Performance Yagis for 88–92 MHz
Maximum-Gain Narrowband Yagi
Tiny-Backlobe Narrowband Yagi
Small 5-Element Yagi
5-Element Log-Yagi
10-Element Log-Yagi
Vertically Polarized Log-Yagi Stack
Circularly Polarized Cubical Quad
Circularly Polarized Loop
Circularly Polarized Rabbit Ears
Elliptically Polarized Tilted Dipole
Wideband Vertical Omni
Antenna Gain vs Height
Antenna Performance Curves
Antenna Notes

Software

Multipath Simulator
Signal/Noise/Distortion Generators
Stereo/RDS/RMS/RC Calculators
Coil Inductance Calculator
FCC Database Utilities
Tuner Measurement Utilities
Transmission Line Utilities
Noise Figure Utilities
Command Line Utilities
Postdetection Filter Optimizer
XDR-F1HD Filter Optimizer

Beyond 88–108 MHz

Improving Modulation Acceptance
Updating the Automatic Noise Limiter
Minimizing Selective Fading Distortion
Mismatched Dipole for TV Channels 2–6
Yagis for TV Channels 7–13
Simple Wi-Fi Yagi

Tuners

Sony XDR-F1HD
Sangean HDT-1
Sangean HDT-1X
Kenwood KT-880D
Technics ST-9030
Carver TX-11b
Pioneer F-90

Circuits

Baluns for 88–108 MHz
Simple RF Preamp
Garage Sale Preamps
Preamp Noise Figure Tables
Eliminating Front-End Overload with RF AGC
Improving Selectivity with IF AGC
Accomodating Offset IF Filters
LC IF Filter
Simple IF Amplifier
Quadrature Multipath Monitor
Adding Tuner Multipath Outputs
Deemphasis Converter

Measurements

Updating IEEE 185-1975
IEEE 185-1975 Bandpass Filter
Bob & Ken's Spectrum Inversion Trick
Measuring Noise Figure without a Noise Source
Simple RF Noise Source
Refurbishing the Wavetek SAM for 88–108 MHz
Updating the Sound Technology 1000A
Swept Front-End Alignment
Alternative IF/Detector Alignment
Modulation-Induced Noise
Axial Ratio Measurements
Relating dBµ and dBf
Matching 50Ω to 75Ω

Stereo

SSB Stereo Subchannel
Alternative Stereo Decoding Methods
Changing Hi-Blend to Flat Blend
Stereo S/N Penalty

HD Radio

HD Radio Self-Noise
HD Radio Self-Noise Levels
IF Filters and HD Radio Self-Noise
Postdetection Filter for HD Radio Signals
Harmonic Cancellers for HD Radio Signals
HD Radio Time & Level Alignment