Abstract
In all receiver engineering with similar types of modulation the data for the redeiver performance refer to signal-to-noise ratio and noise figure either directly or indirectly. The quality of the audio signal is evaluated by the distortion factor or signal breakdown. To simplify the measurement procedures a SINAD meter is used. The equipment presented in this paper combines a distortion factor meter with a true RMS voltmeter with 102 dB range and a automatic SINAD meter, in fact all the capabilities of a laboratory instrument (for the AF side) to make measurements precisely and efficiently. A CCITT weighting filter permits, if required, correct evaluation according to the standard.
Original language | German (Austria) |
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Pages (from-to) | 77-101 |
Number of pages | 25 |
Journal | VHF Communications |
Volume | 39 |
Issue number | 2 |
Publication status | Published - 2007 |
Fields of science
- 202012 Electrical measurement technology
- 202 Electrical Engineering, Electronics, Information Engineering
- 202001 Audio technology