Glossary

These are the terms used on this website:

  • AF – Audio Frequency
  • AGC – Automatic Gain Control
  • AM – Amplitude Modulation
  • ATU – Antenna Tuning Unit
  • BFO – Beat Frequency Oscillator
  • BNC – Bayonet Neill-Concelman (connector)
  • BOM – Bill of Materials (A parts list)
  • BPF – Band Pass Filter
  • CAT – Computer Aided Transceiver
  • CPU – Central Processing Unit
  • CW – Continuous Wave (Morse code)
  • DIP – Dual In-line Package
  • DSP – Digital Signal Processing
  • DVM – Digital Volt Meter
  • DX – Long-distance communication
  • EMF – Electromotive Force
  • EMI – Electromagnetic Interference
  • ESD – Electrostatic Discharge
  • FET – Field Effect Transistor
  • FM – Frequency Modulation
  • GND – Ground
  • HF – High Frequency
  • IC – Integrated Circuit
  • IF – Intermediate Frequency
  • LED – Light Emitting Diode
  • LF – Low Frequency
  • LSB – Lower Side Band
  • LO – Local Oscillator
  • MC1496 – Balanced Modulator / Product Detector IC
  • MOSFET – Metal Oxcide Silicon Field Effect Transistor
  • NB – Noise Blanker
  • PA – Power Amplifier
  • PCB – Printed Circuit Board
  • PLL – Phase Locked Loop
  • PTT – Push To Talk
  • QRP – Low Power Operation
  • QRM – Man-made interference
  • RD01, RD16, RD100 – MOSFET Transistors used in RF amplifiers
  • RFI – Radio Frequency Interference
  • RF – Radio Frequency
  • RIT – Receiver Incremental Tuning
  • ROM – Read Only Memory
  • RX – Receive
  • SSB – Single Side Band
  • SMD – Surface Mounted Device
  • SWR – Standing Wave Ratio
  • TCXO -Temperature Compensated Crystal Oscillator
  • TFT – Thin-Film Transistor (display)
  • THT – Through Hole Technology (traditional components that mount through holes in the PCB and soldered on the underside (Side B)
  • TTL – Transistor-Transistor Logic
  • TX – Transmit
  • TXD – Transmit Data
  • USB – Upper Side Band
  • UHF – Ultra High Frequency
  • VHF – Very High Frequency
  • XTAL – Crystal

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