Decree No. 22 / 2011 Coll.
Decree on the method of determining the coverage of terrestrial radio signals spread in selected frequency bands
Valid
Effective from 26.02.2011
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22
DECLARATION
of 27 January 2011
on the method of determining the coverage of terrestrial radio signals spread in selected frequency bands
Pursuant to Article 150 (5) of Act No. 127 / 2005 Coll., on Electronic Communications and on the amendment of certain related laws (the Act on Electronic Communications), as amended, (the Act), for the implementation of Section 113 (7) of the Act, as amended by Act No. 153 / 2010 Coll.:
Definition of terms
For the purposes of this decree:
(a) terrestrial analogue radio transmission of stereo radio in the 87,5-108 MHz frequency band (hereinafter FM band), where analogue frequency modulation is used for signal transmission;
(b) by terrestrial digital radio broadcasting in a given standard, where the appropriate digital modulation scheme is used for radio channel transmission;
(c) a part of the radio spectrum defined by the radio channel as follows:
1. in the FM band, radio channels with 100 kHz carrier frequency spacing;
2. in the 174- 230 MHz band (the III band), the radio channel designated by Rn and defined by the terrestrial digital radio transmission range of frequencies from (174 + (n-5) * 7) to (174 + (n-4) * 7) in MHz, where n is equal to 5 to 12 and where each radio channel is further divided into four equal frequency blocks, marked with letters A, B, C and D,
3. in the 1452-1479,5 MHz band ("L band"), radio channels marked with LA, LB, LC to LP, defined by the radio frequency range from (1452,192 + (n-1) * 1,712) to (1453,728 + (n-1) * 1,712) in MHz, where n is equal to 1 to 16,
(d) by radio receiver of equipment technically eligible for individually optional reproduction of radio broadcasting regardless of the way in which it is received (1);
(e) fixed antenna receiver direction indicator antenna with radiation discrimination min. 12 dB in the range 60 to 180 degrees from the main direction of reception and with polarization discrimination min. 10 dB, located outside the building at the roof level of the installation or outside the installation at a height of 10 m above the ground level,
(f) an all-directional receiver antenna, a non-profit antenna with an undefined directional radiator diagram and undefined polarisation characteristics intended primarily for reception by mobile or portable receivers;
(g) standard reception equipment:
1. for terrestrial analogue radio transmission in the FM band, a radio receiver with a minimum sensitivity of -75 dBm connected to a fixed reception antenna. A radio receiver connected to a cable system (2) providing a common radio reception or an automatic receiver shall be considered as a standard reception device for terrestrial analogue radio broadcasting,
2. for terrestrial digital radio broadcasting, a radio receiver with a minimum sensitivity of -81 dBm, connected to the universal reception antenna,
(h) a transmitter for broadcasting radio equipment intended for the dissemination of terrestrial analogue radio broadcasting ("analogue transmitter") or broadcasting radio equipment for the dissemination of terrestrial digital radio transmission ("digital transmitter"),
(i) a measuring point at the point where the intensity of the electromagnetic field and any other parameters of radio broadcasting are measured and the quality of radio broadcasting assessed subjectively;
(j) the measurement set for measuring the intensity of the electromagnetic field is a set consisting of an antenna with a known antenna factor (hereinafter referred to as the "measuring antenna"), a measuring receiver or a spectrum analyser (hereinafter referred to as the "measuring instrument") and a coaxial cable with impedance adapted to the measuring antenna and measuring instrument;
(k) an antenna factor of the constant indicated in dB, used to recalculate the voltage value measured by the measuring instrument at the terminals of the measurement antenna indicated in dBμV to the electromagnetic field intensity indicated in dBμV / m;
(l) the power of a multiplex signal, the power ratio of the full multiplex signal, including pilot and other associated signals, integrated in any 60 s time interval, to the reference power of the terrestrial analogue radio signal, modulated by one sinus frequency, by achieving a frequency stroke of ± 19 kHz (expressed in dBr).
Electromagnetic field intensity
(1) The coverage of the territory by radio broadcasting shall be assessed on the basis of the measured electromagnetic field intensity (hereinafter referred to as "intensity ') of the terrestrial radio signal.
(2) The intensity of the terrestrial radio signal shall be determined in the case of:
(a) analogue broadcasting on the basis of the calculation under the conditions laid down in § 4 and in the case of verification of the result of the calculation by measurement carried out under § 9, 10 and 11,
(b) digital broadcasting on the basis of the calculation under the conditions laid down in § 5 and in the case of verification of the result of the calculation by measurement carried out under § 9, 10 and 12.
(1) For the purpose of calculating the intensity, a digital field model is used in a grid of 100 x 100 m with triangular interpolation without considering morphology.
(2) The intensity calculation respects the signals of analogue or digital transmitters, which are listed in the Czech Telecommunications Authority database and whose operation increases the level of interference of the received radio signal in the territory under consideration ("known interference signals'). Known interference signals for calculation are given by the technical parameters of analog or digital transmitters operated on the territory of the Czech Republic and foreign internationally coordinated analog or digital transmitters. A maximum of ten jamming transmitters enter the calculation.
(3) The dissemination method recommended by the International Telecommunications Union shall be used to determine the intensity. The recommendation of the International Telecommunications Union setting out this method will be published by the Czech Telecommunications Authority in a way that allows remote access.
Method of calculating the intensity on the territory covered by the terrestrial analogue radio signal
The effort calculation shall take into account:
(a) the minimum value of the useful signal intensity 54 dBμV / m;
(b) reception at 10 m above ground at fixed reception antenna;
(c) electromagnetic wave propagation curves valid for 50% of sites and 50% of time for both useful and disruptive signals;
(d) permanent interference;
(e) the protection ratio of analogue radio signal with an analogue radio signal with a frequency stroke of ± 75 kHz and a multiplex 0 dBr signal, which are:
| Rozdíl nosných kmitočtů (kHz) | Ochranný poměr (dB) |
|---|---|
| 0 | 45 |
| 100 | 33 |
| 200 | 7 |
| 300 | -7 |
| 400 | -20 |
For the purposes of the calculations provided for in this Decree, the values of the protection ratios shall be used 6 dB lower.
Method of calculating the intensity on the territory covered by the terrestrial digital radio signal
The effort calculation shall take into account:
(a) in zone III
1. minimum value of the useful signal intensity 58 dBμV / m;
2. reception at 10 m above terrain for all-directional antenna;
3. electromagnetic wave propagation curves valid for 50% of locations and 50% of time for useful signal;
4. electromagnetic wave propagation curves valid for 50% of sites and 1% of time for jamming signal;
5. protective conditions, which are:
- for digital radio broadcasting interrupted by digital radio broadcasting in the same 15dB block,
- for digital radio broadcasting interrupted by digital radio broadcasting in the neighbouring block -30 dB,
- for digital radio broadcasting interrupted by digital television broadcasting
| Δf [MHz] | -4,5 | -3,7 | -3,5 | -2,5 | 0 | 2,5 | 3,5 | 3,7 | 4,5 |
|---|---|---|---|---|---|---|---|---|---|
| OP [dB] | -42 | 7 | 8 | 9 | 9 | 9 | 8 | 7 | -42 |
where Δf is the difference between the mean frequencies of the digital television channel and the digital broadcasting block,
- for digital radio broadcasting interrupted by analogue television broadcasting
| Δf [MHz] | -8,0 | -7,5 | -7,0 | -6,5 | -6,0 | -5,5 | -5,0 | -4,5 | -4,0 | -3,5 | -3,0 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| OP [dB] | -47,0 | -42,5 | -3,0 | -2,5 | -3,0 | -37,5 | -21,5 | -20,0 | -22,0 | -31,5 | -31,5 |
| Δf [MHz] | -2,5 | -2,0 | -1,5 | -1,0 | -0,9 | -0,8 | -0,7 | -0,6 | 0,0 | 0,6 | 0,7 |
| OP [dB] | -29,0 | -26,5 | -23,0 | -18,5 | -16,0 | -9,0 | -5,0 | -3,0 | -0,5 | -3,0 | -4,0 |
| Δf [MHz] | 0,8 | 0,9 | 1,0 | 2,0 | |||||||
| OP [dB] | -12,0 | -16,0 | -19,0 | -45,3 |
where Δf is the difference in the value of the analogue television image and the mean digital broadcasting block frequency,
(b) in zone L
1. the minimum value of the useful signal intensity 69 dBμV / m;
2. reception at 10 m above terrain for all-directional antenna;
3. electromagnetic wave propagation curves valid for 50% of locations and 50% of time for useful signal;
4. electromagnetic wave propagation curves valid for 50% of sites and 1% of time for jamming signal;
5. protective conditions, which are:
- for digital broadcasting interrupted by digital broadcasting in the same 15 dB block,
- for digital radio broadcasting interrupted by digital radio broadcasting in the neighbouring block -30 dB.
Determination of territorial coverage by terrestrial radio signals
(1) The coverage of the territory shall be determined on the basis of an effort calculation in an area whose borders correspond to the boundaries of the territory of interest.
(2) The territory of interest shall be covered by terrestrial radio broadcasting if the signal from one or more transmitters reaches:
(a) for signals of terrestrial analogue radio transmission in the FM band of intensity greater than or equal to the minimum intensity referred to in § 4 (a) and the value of the protection ratio referred to in § 4 (e) is respected;
(b) for a signal of terrestrial digital radio transmission in the III zone of intensity greater or equal to the minimum intensity referred to in § 5 (a) (1) and the value of the protection ratio referred to in § 5 (a) (5) is respected;
(c) for the signal of terrestrial digital broadcasting in the L-band of intensity greater or equal to the minimum intensity referred to in Section 5 (b). (b) point (1) and the value of the protection ratio in accordance with § 5 (b) (5) is respected.
(3) The coverage of the territory by terrestrial radio signals shall be given for each territory of interest as the ratio of the area of the territory covered by the terrestrial radio broadcasting and the total area of that territory expressed as a percentage.
Residential coverage of the population by terrestrial radio signals
(1) The evaluation of the population covered by the terrestrial radio signal is carried out for individual municipalities of the Czech Republic based on the population of individual municipalities according to the data of the Czech Statistical Office resulting from the last census of the people).
(2) The assessment of the coverage of the population by terrestrial radio signals in the municipality is carried out for each basic residential unit (4) assigned to the municipality concerned. The number of inhabitants covered by the terrestrial radio signal in the base station unit shall be determined as the product of the ratio of the territory of the base station unit covered by the terrestrial radio signal to the total area of the base station unit and the total population of the base station unit. The population covered by the terrestrial radio signal in the municipality shall be determined as the sum of the population covered by the terrestrial radio transmission in each of the basic residential units in the municipality. The number of inhabitants covered by the terrestrial radio signal in the municipality is generally indicated as the proportion of the population found covered by the terrestrial radio signal in the municipality to the total population of the municipality expressed as a percentage.
(3) The number of inhabitants covered by the terrestrial radio signal for the whole of the Czech Republic, or a selected part of the territory larger than the municipality, is given by the sum of the inhabitants covered by the terrestrial radio signal in the individual municipalities of the selected part of the territory. The number of inhabitants covered by the terrestrial radio signal is generally indicated as the ratio of the population found covered by the terrestrial radio signal to the total population of the Czech Republic or the selected part of the territory expressed as a percentage.
Verification of calculation results by measurement
(1) Measurement to verify the result of the calculation shall be carried out in particular in the case of:
(a) assessment of a signal from one transmitter, in particular in the peripheral areas of the territory covered by a signal from that transmitter;
(b) assessment of signal from multiple transmitters, in particular in a small mountain terrain, in areas covered by terrain barriers, high buildings and so on.
(2) In cases where measurements have been made, the standard results of measurements of the intensity of the terrestrial radio signal and a subjective assessment of its quality shall be used to assess the coverage of the territory by radio broadcasting.
Measurement of intensity and subjective evaluation of signal quality
(1) The intensity measurement shall be carried out by a measuring kit with a measuring antenna and a subjective evaluation of the quality of the radio signal shall be assessed on the radio receiver connected to the antenna for the assessment of the quality of the signal.
(2) The minimum requirements for the technical characteristics of the measuring set and the setting of measuring instruments for measuring the intensity of radio signals are set out in Annex 1 to this Decree.
(3) The minimum requirements for the technical characteristics of radio receivers for the subjective evaluation of the quality of the radio signal are set out in Annex 2 to this Decree.
(4) The procedure for carrying out a subjective evaluation of the quality of the radio signal is set out in Annex 3 to this Decree.
(5) Measurement of intensity and subjective evaluation of the quality of received radio signals shall be carried out on fixed measuring points or, where appropriate, on the measurement route when measured while driving.
(6) The measuring points for measuring the intensity and subjective evaluation of the quality of the radio signal are chosen taking into account the rainfall of the terrain and of the buildings in the municipality in places which are not close to obstacles or objects that overshadow in particular the direction of the transmitter whose signal is measured and are not affected by the above-ground metallic guidance and other influences. The measuring point shall be determined by the geographical coordinates of the World Geodetic Reference System 1984 (WGS84) in accordance with the special legislature5, a more detailed description of the location and address, if provided for for.
(7) Measurement of intensity and subjective evaluation of the quality of the radio signal is carried out
(a) at a height of 10 m above the terrain, unless otherwise provided by this decree;
(b) on roofs of buildings in cases where the height limits of buildings exceed 10 m above the terrain;
(c) at a height of 3 m above the terrain when measured while driving by a measuring vehicle.
(8) Where the measured intensity is
(a) for terrestrial analogue radio broadcasting in the FM band below the intensity value referred to in Article 4 (a); or
(b) for terrestrial digital radio broadcasting in the III zone below the intensity value referred to in § 5 (a) (1) or for the L band the intensity value referred to in § 5 (b) (1);
In order to exclude the possibility of measuring at a local minimum, resulting from the multi-way propagation of radio signals, it is necessary to determine the maximum intensity value for a horizontal change in the position of the measurement antenna of at least 1 m. By directing the measurement direction antenna to the measured analogue radio transmitter in the FM band or to a signal with the best subjective quality assessment of digital radio transmission, the intensity of the change in height of the measurement antenna shall be determined between 5 m and 10 m. The maximum intensity value shall be selected from the values found.
(9) For each measuring point, a weighting coefficient shall be established, representing an estimate of the population of the municipality, expressed as a percentage, represented by the measuring point. The weighting coefficient for each measuring point shall be determined by the measuring techniques during measurements in the municipality; in determining the weighting coefficient, account shall be taken of population figures in the relevant base unit assigned to the respective municipality. The sum of the weighting coefficients of all measuring points in the municipality must be equal to 100%.
(10) Data on the measuring point, date, time and other conditions of measurement shall be recorded in the table of the measurement record, together with measured intensity values and data on the subjective evaluation of the quality of radio signals received.
Procedure for determining the number of measuring points
(1) At least 5 measuring points shall be selected so that these selected measuring points represent the expected worst and best reception points for the relevant measured signal. In small municipalities up to 100 inhabitants 3 measuring points are selected. At the measuring points, the intensity measurement shall be performed and the intensity difference shall be determined from the measured values according to the formula:
ΡE = Enmax. - Enmin.
where:
Æ the difference in intensity,
Enmax. maximum measured intensity,
Enmin. minimum value of measured intensity.
(2) Where, in accordance with the procedure referred to in paragraph 1, a value is found
(a) Ø E < 5 dB, there is no need to increase the number of measuring points;
(b) outta E ≥ 5 dB and ≤ 21 dB, the number of measuring points required shall be selected as follows:
1. if the latter is 5 to 10 dB, the number of measuring points required shall be at least 7;
2. if the latter is 10,1 to 15 dB, the number of measuring points required shall be at least 15;
3. if the latter is 15,1 to 21 dB, the number of measuring points required shall be at least 27;
(c) Ø E > 21 dB, the territory under consideration must be divided into smaller, separate parts.
Measurement and evaluation of territorial coverage by terrestrial analogue radio signals
(1) For the purposes of measurement, the territory of one municipality, part of it or of the territory of the principal residence unit is normally the territory of the interest territory.
(2) Measurement antenna:
(a) measurement at measuring points shall be carried out using direction antennas, located at a height of 10 m above the ground, set in the direction of maximum intensity of the measured signal;
(b) an all-directional antenna, located on the roof of the measuring vehicle at a height of 3 m above the terrain, shall be used for measurements while driving.
When measured using a measuring antenna 3 m above the terrain, the measured values shall be corrected to a standard height of 10 m above the terrain by adding a coefficient k = 6 dB.
(3) A subjective assessment of the quality of the radio signal shall be carried out in accordance with the procedure and scale set out in Annex 3 (A) (1) to this Decree.
(4) The area around the measuring point is considered to be covered if the measured intensity reaches the minimum intensity according to Annex 3 (A) 1 and the subjective assessment of the quality of the radio signal is within the degrees Q3 to Q5 according to Annex 3 (A) 2 to this Decree.
(5) In the case of measurements on the roofs of buildings referred to in Section 9 (7) (b) for group income purposes, the area surrounding the measuring point shall be considered covered if the measured intensity reaches the minimum intensity values referred to in Section 4 (a) and the subjective quality assessment is evaluated at least at Q4 level according to Annex 3 (A) (2) to this Decree.
(6) The resulting coverage of the territory is defined as the ratio of the individual measurement points covered to the total number of measurement points expressed as a percentage.
(7) In the case of measurements while driving, the coverage of the territory shall be determined as the ratio of the points of measurement at which the measured intensity is at least equal to the minimum field intensity in accordance with Annex 3 (A) 1 for the height of the measuring antenna 3 metres and the total number of points measured, expressed as a percentage. A subjective assessment of the quality of the radio signal shall not be carried out during driving measurements.
Measurement and evaluation of territorial coverage by terrestrial digital radio signals
(1) For the purposes of measurement, the territory of one municipality, part of it, the territory of the main residential unit or of the infrastructure and its surroundings are normally the territory of the interest area.
(2) When measured at the measuring point, the measuring antenna shall be set at a height of 10 m above the terrain in the direction of the maximum signal intensity of the measured radio transmission. When measured while driving, an omnidirectional measuring antenna with vertical polarisation shall be used, located on the roof of the measuring vehicle at a height of 3 m above the terrain. Depending on the specific height of the measuring antenna used, the measured values shall be corrected to a standard height of 1,5 m above the terrain by subtracting the coefficient k = 10 dB for measurements in 10 m and k = 4 dB for measurements in 3 m.
(3) When measured at the measuring point, the spectrum analyser shall check the shape of the radio signal spectrum received.
(4) The area around the measuring point is considered to be covered if the measured intensity reaches the minimum intensity according to § 5 (a) (1) or § 5 (b). (b) point 1 and the subjective assessment of the quality of the radio signal shall be in the range of degrees Q3 to Q5 in accordance with Annex 3 (B) (2) to this Decree.
(5) In the case of measurements on roofs of buildings referred to in Article 9 (7) (b) for group income purposes, the area around the measuring point shall be considered to be covered if the measured intensity reaches the minimum intensity referred to in Article 5 (a) (1) for III. the band or intensity values referred to in Section 5 (b) (1) for the L-band and the subjective quality assessment shall be assessed by the Q5 level according to Annex 3 (B) (2) to this Decree.
(6) The resulting coverage of the territory is defined as the ratio of the individual measurement points covered to the total number of measurement points expressed as a percentage.
(7) In the case of mobile measurements, the coverage of the territory of interest shall be determined as the ratio of the points of measurement at which the measured intensity is at least equal to the minimum field intensity in accordance with Annex 3 (B) 1 for the height of the measuring antenna 3 metres and the total number of points measured, expressed as a percentage. A subjective assessment of the quality of the radio signal shall not be carried out during driving measurements.
Evaluation of the population covered by the radio signal
(1) The number of inhabitants of the interest area covered by the radio signal shall be determined from measured intensity values and subjective assessment of the quality of the signal at point measurements according to the formula:
P = dost = 1n vi * pi%,
where:
P number of inhabitants of the territory covered by the radio signal,
n number of measuring points,
vi the weighting coefficient determined in accordance with § 9 (9);
Pi value expressing coverage of the area represented by the measuring point established for analogue terrestrial broadcasting pursuant to § 11 (4) and (5) or for digital terrestrial broadcasting pursuant to § 12 (4) and (5). This value is equal to
(a) 0 for a measuring site not covered; or
(b) 1 for a measuring site covered by the terrestrial radio signal.
(2) The weighting coefficient shall not be used when measuring the intensity of radio signals while driving.
(3) The resulting number of inhabitants covered by radio signals in a territory larger than the territory of interest is determined by the sum of the number of inhabitants covered in each territory of interest.
Efficacy
This Decree shall take effect on the 15th day following its publication.
President of the Council of the Czech Telecommunications Office:
PhDr. Dvořák, CSc., v. r.
Příloha č. 1
Annex No 1 to Decree No 22 / 2011 Coll.
Minimum requirements for the technical characteristics of the measuring set and setting of measuring instruments for measuring the intensity of the terrestrial radio signal
1. The measurement set for measuring analogue radio signals in the FM band shall meet the following parameters.
1.1 Measuring instrument
| kmitočtový rozsah | 87,5 - 108 MHz |
| přesnost měření úrovní | ≥ ± 2,0 dB |
| rozsah měření úrovní | 0-120 dBµV |
| IFBW volitelná | 100 - 250kHz |
| detektor | AV |
| potlačení zrcadlových kmitočtů | > 70 dB |
| potlačení mezifrekvenčního signálu | > 70 dB |
| vstupní impedance | 50 (75) Ω |
| provozní teplota | + 5 ÷ + 45 °C |
1.2 Measuring antenna
| kmitočtový rozsah | 87,5 - 108 MHz |
| výstupní impedance | 50 (75) Ω |
| provozní teplota | - 15 ÷ + 50 °C |
For measurements at measuring points, the measurement antenna shall be used directional; for measurements while driving, the measurement antenna shall be omnidirectional.
2. The measurement set for the measurement of digital radio signals in the III and L bands shall meet the following parameters.
2.1. Measuring apparatus
| kmitočtový rozsah | 174 - 230 MHz |
| 1452,0 - 1479,5 MHz | |
| přesnost měření úrovní | ≥ ± 2,0 dB |
| rozsah měření úrovní | 10 - 80 dBμV |
| IFBW | 1,5 MHz |
| detektor | RMS |
| potlačení zrcadlových kmitočtů | > 70 dB |
| potlačení mezifrekvenčního signálu | > 70 dB |
| vstupní impedance | 50 (75) Ω |
| provozní teplota | + 5 ÷ + 45 °C |
2.2 Measuring antenna
| kmitočtový rozsah | 174 - 230 MHz |
| 1450 - 1480 MHz | |
| výstupní impedance | 50 (75) Ω |
| provozní teplota | - 15 ÷ + 50 °C |
For measurements at measuring points, the measurement antenna shall be used directional; for measurements while driving, the measurement antenna shall be omnidirectional.
3. Setting of measuring instruments for measuring electromagnetic field intensity
3.1 Measurement of terrestrial analogue radio signals in the FM band
3.1.1 Setting the basic parameters of the spectrum analyser
| šířka pásma rozlišení RBW | 120 kHz (100 -180 kHz) |
| šířka pásma video VBW | 100 - 300 kHz |
| detektor | AV |
| stopa | C/W |
| span | 0,5 MHz |
| swp | 200 ms |
| korekce | hodnotou |
3.1.2 Setting the basic parameters of the measuring receiver
| šířka pásma filtru mf IFBW | 120 kHz (100 - 180 kHz) |
| detektor | AV |
| korekce | hodnotou |
3.2 Measurement of terrestrial digital radio signals
3.2.1. Measurement of the intensity of the digital radio signal shall be carried out as integration measurements, i.e. measurements over the full width of the frequency block for the spectrum analyser "channel power" or for other measuring instruments corresponding to their parameters. Using this function, the parameters of the measuring instrument are usually set automatically. If the parameters of the measuring instrument are not set automatically, the following parameters shall be set manually:
| šířka pásma rozlišení RBW | 1500 kHz |
| šířka pásma kanálu | 1536 kHz |
| detektor | RMS |
| stopa | C/W nebo AVG |
| span | 5 MHz (doporučená hodnota) |
| swp | 200 ms |
| korekce | hodnotou |
3.2.2. When using measuring instruments that allow only measurements with a less resolution bandwidth (RBW) or an interfrequency bandwidth (IFBW) than 1500 kHz required, the parameters of the measuring instrument shall be set as follows:
| detektor | RMS |
| stopa | C/W nebo AVG |
| span | 5 MHz (doporučená hodnota) |
| swp | 200 ms |
| korekce | hodnotou |
In order to ensure maximum accuracy, the value of RBW (IFBW) shall be set to the highest value allowed by the measuring instrument. The mean frequency at which the measurement is carried out shall be determined taking into account the shape of the spectrum throughout the radio channel, in particular when the surface of the signal is waved due to reflections, so that the measurement is as accurately represented as possible by the mean value of the measured signal.
The resulting intensity shall be determined according to the correction for the RBW (IFBW) value used according to the relation:
ET- DAB = Enam. + K1 + K2 dBμV / m, dBμV / m, dB, dB,
where:
Enam: measured intensity [dBμV / m]
K1: 10 * log (1536 / RBW) [dB]
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Regulation Information
| Citation | Decree No. 22 / 2011 Coll., on the method of determining the coverage of terrestrial radio signals spread in selected frequency bands |
|---|---|
| Regulation Type | - |
| Author | - |
| Collection | Code of Laws |
| Date of Promulgation | 11.02.2011 |
|---|---|
| Effective from | 26.02.2011 |
| Effective until | - |
| Status | Valid |
The regulation text is for informational purposes only.
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