| AGC
| Automatic gain control
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| ATT
| Receiver front end ATTenuator
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| Carrier
| A steady radio frequency signal that is modulated to add an information signal to be transmitted.
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| DBF
| DSP Bandpass Filter - enhances the receiver’s selectivity by allowing signals to go through it only if they are within a certain range of frequencies. It attenuates signals above and below this range.
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| DNF
| DSP Notch Filter - helpful in removing one or more offending carriers from the audio passband
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| DNR
| DSP Noise Reduction - enhances signal-to-noise ratio on weak signals
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| DSP
| Digital Signal Processor -
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| IF Shift
| Adjust the center frequency of the IF filter’s passband response.
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| IPO
| Intercept Point Optimization - bypasses the receiver preamplifier
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| PSK
| Phase Shift Keying
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| RTTY
| Radioteletype - Digital mode where radio signals sent from one teleprinter machine to another machine.
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| SSB
| Single Side Band - A common mode of voice operation on the amateur bands. Single-sideband signals use the upper sideband (USB -- that part of the signal above the carrier) or the lower sideband (LSB -- the part of the signal below the carrier). SSB transceivers allow operation on either USB or LSB.
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| SWR
| Standing Wave Ratio - A measure of the impedance match between the feed line and the antenna.
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| TCXO
| Temperature Compensated Crystal Oscillator - stable master oscillator so that the frequencies indicated by the radio's display are acurate and stable as the radio warms up.
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| Watt
| The unit of power in the metric system. The watt describes how fast a circuit uses electrical energy.
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