spectrum emission

spectrum emission

1. In spectroscopy and fluorometry, the range of wavelengths emitted by a substance.
2. In the case of atoms, the lines of emission.
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The spectrum emission mask of DVB-T station is presented in Fig.
DB parameters for rural and urban area deployment [2] DB-BS DB-SS Parameter Rural Urban Rural Urban Pt (dBm) 74.6 63.6 -- [E.sub.med] 56.64 88.64 -- (dB[mu] V/m) Offset Frequency 706 (MHz) BW (MHz) 8 Height (m) 200 100 10 Gain (dBi) 0 14.15 Noise Figure (dB) -- 7 Coverage Radius 50 20 -- (km) Antenna Omni ITU-R BT.419-3 Thermal Noise -- -98 (dBm) Sensitivity (dBm) -- -78 -88 Propagation Model ITU-R 1546-4 [11] Network Type RN1 RN3 -- C/N (dB) 21 17 -- C/I (dB) 27 -30 23 -30 Reception -- RPC 1 Configuration Spectrum Emission GE06 -- Mask Receiver Blocking -- Protection Ratio Attenuation Mode Allowed Interfering -- -104 Signal (dBm) Table 3.
The proposed method mainly depends on spectrum emission mask (SEM) technique to investigate different interference scenarios such as co-channel, adjacent channel with overlapping band (Overlp_B), with zero guard band (ZGB), or with guard band (GB), for different bandwidths of the interferer and victim.
The spectrum analyzer measures spurious emissions of a mobile radio base station using the spectrum emission mask (SEM) function.
Built-in functions include channel and multichannel power, pulsed measurement, gated sweep, occupied bandwidth, spectrum emission mask, TOI measurement, total harmonic distortion, AM/FM and digital demodulation analysis, X-dB down, and phase noise measurement.
These packages not only include all the standard-compliant settings for measurements of in-band parameters such as modulation accuracy, frequency error or performance of power control, but also the correct limit lines for spectral measurements such as spectrum emission or power-versus-time masks.
These ovens are used with the same small food items as domestic ovens, and thus give the same type of spectrum emission. In addition, stirrers are more common in these ovens, which results in increased frequency fluctuations.
Several built-in functions include channel power, adjacent channel power, occupied bandwidth, spectrum emission mask, third-order-intercept (TOI) measurement, harmonic distortion, X dB down, and phase noise measurement.
This capability and the advancements made in instrumentation design allow transmitter (TX) measurements, which include output power, frequency error, occupied bandwidth (OBW), spectrum emission mask, adjacent channel leakage power, error vector magnitude (EVM), and peak code domain error (PCDE), to be conducted in as little as 200 ms.
"Also avoid using LED lighting with blue-rich white light--that will decrease the brightness of night lighting and avoid the deleterious effects of blue spectrum emissions at night."
Also supported in the measurement application is cumulative ACLR (CACLR) and cumulative spectrum emissions mask (SEM) measurements for intra-band non-contiguous carrier aggregation-a new requirement in 3GPP Release 11.
A general-purpose simulated analysis icon can be used in place of the third icon but only FFT, waveform amplitude, waveform I/Q, and spectrum emissions mask graphs are available, and the spectrum emissions mask isn't plotted unless a real VSA is used.
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