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f968701d34274f489f6c9983c6c42197 | 100 027 | 8.1.7 Conducted spurious components | |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.1.7.1 Definition | Conducted spurious components are discrete radio frequency signals conveyed from the antenna socket by conduction to the test load. They are specified as the power level of any discrete signal delivered into a test load within the specified frequency range. |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.1.7.2 Method of measurement | Signal generator Receiver under test Test load Spectrum analyser or selective voltmeter Figure 71: Measurement arrangement A test load may be used to protect the spectrum analyser or selective voltmeter against damage when testing a receiver combined in one unit with a transmitter. The spectrum analyser or selective vo... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.1.8 Amplitude characteristic for analogue speech | |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.1.8.1 Definition | The amplitude characteristic for analogue speech of the receiver is the relationship between the radio frequency input level and the audio frequency level at the receiver output. |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.1.8.2 Method of measurement | Signal generator Receiver under test AF load/ acoustic coupler rms voltmeter Figure 72: Measurement arrangement ETSI ETSI TR 100 027 V1.2.1 (1999-12) 117 a) A signal generator should be connected to the receiver input. The signal generator should be at the nominal frequency of the receiver and should be modulated by te... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.1.9 Audio frequency response for analogue speech | |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.1.9.1 Definition | The audio frequency response for analogue speech is the variation of the level of the audio frequency output of the receiver as a function of change of the frequency of the modulation. |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.1.9.2 Method of measurement | Signal generator Receiver under test AF load/ acoustic coupler rms voltmeter Figure 73: Measurement arrangement a) An audio frequency load and an rms voltmeter should be connected to the receiver output terminals. A signal generator at the nominal frequency of the receiver and with test modulation A-M1 should be connec... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.1.10 Harmonic distortion for analogue speech | |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.1.10.1 Definition | The harmonic distortion for analogue speech of a receiver output is the ratio, expressed as a percentage, of the rms voltage of all the harmonic components of the fundamental audio frequency to the total rms voltage at the output. ETSI ETSI TR 100 027 V1.2.1 (1999-12) 118 |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.1.10.2 Method of measurement | Signal generator Receiver under test AF load/ acoustic coupler Audio output meter Distortion meter Figure 74: Measurement arrangement a) An audio frequency load, audio power meter and a distortion meter should be connected to the receiver output terminal. A signal generator at the nominal frequency of the receiver and ... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.1.11 Hum and noise for analogue speech | |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.1.11.1 Definition | The "hum and noise" of a receiver for analogue speech is the ratio, expressed in decibels, of the audio frequency power output produced by a radio frequency test signal without modulation to the audio frequency power output produced by a signal with specified test modulation. |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.1.11.2 Method of measurement | Signal generator Receiver under test AF load/ acoustic coupler rms voltmeter with psophometric filter Figure 75: Measurement arrangement ETSI ETSI TR 100 027 V1.2.1 (1999-12) 119 a) An audio frequency load and an rms voltmeter with psophometric weighting network should be connected to the receiver output terminals. b) ... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.1.12 Multipath sensitivity | |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.1.12.1 Multipath sensitivity for bit stream | |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.1.12.1.1 Definition | The multipath sensitivity for bit stream of the receiver is the rms value of the level of a Rayleigh fading signal, at the receiver input, at the nominal frequency of the receiver with test modulation D-M2 signal which produces a bit error ratio of 10-2. |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.1.12.1.2 Method of measurements | Bit stream generator Bit error measuring test set Termination Signal generator Receiver under test Rayleigh fading simulator Figure 76: Measuring arrangement The Rayleigh fading simulator may consist of two uncorrelated digital pseudorandom generators with third order digital filters to shape the noise power spectra. T... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.1.12.2 Multipath sensitivity for messages | |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.1.12.2.1 Definition | The multipath sensitivity for messages of the receiver is the rms value of the level of a Rayleigh fading signal, at the receiver input, at the nominal frequency of the receiver with test modulation D-M3 signal which produces a specified successful message ratio of 80 %. |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.1.12.2.2 Method of measurements | Message generator Response measuring test set Termination Signal generator Receiver under test Rayleigh fading simulator Figure 77: Measuring arrangement The Rayleigh fading simulator may consist of two uncorrelated digital pseudorandom generators with third order digital filters to shape the noise power spectra. The b... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.1.13 Bit error ratio at high input levels | |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.1.13.1 Definition | The bit error ratio is the ratio of the number of bits incorrectly received to the total number of bits received. |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.1.13.2 Method of measurement | Bit stream generator Bit error measuring test set Termination Signal generator Receiver under test Figure 78: Measurement arrangement a) A signal generator should be connected to the receiver input. The signal generator should be, at the nominal frequency and should have test modulation D-M2. b) The amplitude at the si... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.1.14 Opening delay for data | |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.1.14.1 Definition | The receiver opening delay is the time which elapses between the application of a test signal to the receiver and the establishment of the receiving condition. |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.1.14.2 Method of measurement | Bit stream or message generator Signal generator Receiver under test Termination Delay time test set up Figure 79: Measuring arrangement a) A signal generator should be connected to the receiver input. The signal generator should be at the nominal frequency and should be adjusted to give a signal level at the receiver ... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2 Radiated tests | The tests carried out on receivers can be divided into two categories, namely sensitivity and immunity. Sensitivity tests determine how well a receiver can accept wanted signals in the absence of interference, whereas immunity tests, by involving 2 or 3 signal generators, determine the ability of a receiver to accept a... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1 Sensitivity tests (30 MHz to 1 000 MHz) | The test method for measuring the maximum or average usable sensitivity of a receiver is in two parts. In the first part, a Transform Factor for the test site (i.e. the relationship in decibels between the output power level (in dBm) from the signal generator to the resulting electric field strength (in dBµV/m) at the ... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.1 Anechoic Chamber | |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.1.1 Apparatus required | - Digital voltmeter; - Ferrite beads; - 10 dB attenuators; - Power supply; - Connecting cables; - Anechoic Chamber; - Test antenna (half wavelength dipole as detailed in ANSI C63.5 (1988) [11] recommended); - Measuring antenna (half wavelength dipole as detailed in ANSI C63.5 (1988) [11] recommended); - RF Signal gener... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.1.2 Method of measurement | Determination of the Transform Factor for the Anechoic Chamber 1 For this part of the test, it is necessary to position the measuring antenna within the chamber such that its phase centre is at the same point that the phase centre of the EUT will occupy in the second part of the test (the EUT being mounted in an orient... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.1.3 Procedure for completion of the results sheets | All the necessary processing of the measured results is carried out during the course of the test procedure. The only calculation that remains to be performed is the determination of the expanded uncertainty of the measurement. This should be performed as given in TR 100 028-2 [7], subclause 8.2.1.1 and the resulting v... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.1.4 Log book entries | Table 29: Log book results sheet RECEIVER SENSITIVITY Date: PAGE 1 of 2 Temperature:.........°°°°C Humidity:...............% Frequency:.............MHz Manufacturer of EUT:..................... Type No:.............. Serial No:.................. Range length:....................... Test equipment item Type No. Serial N... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.1.5 Statement of results | The results should be presented in tabular form as shown in table 30. Table 30: Overall results sheet RECEIVER SENSITIVITY Date: PAGE 1 of 1 Vertical polarization Horizontal polarization MAXIMUM Usable Sensitivity µV/m MAXIMUM Usable Sensitivity µV/m AVERAGE Usable Sensitivity µV/m AVERAGE Usable Sensitivity µV/m Expan... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.2 Anechoic Chamber with a ground plane | For Sensitivity testing in an Anechoic Chamber with a ground plane reference should be made to the Open Area Test Site test method (subclause 8.2.1.3), since the procedures are identical. ETSI ETSI TR 100 027 V1.2.1 (1999-12) 133 The test equipment set-up for the derivation of the Transfer Factor is shown in figure 82 ... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.3 Open Area Test Site | |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.3.1 Apparatus required | - Digital voltmeter; - Ferrite beads; - 10 dB attenuators; - Power supply; - Connecting cables; - Open Area Test Site; - Test antenna (half wavelength dipole as detailed in ANSI C63.5 (1988) [11] recommended); - Measuring antenna (half wavelength dipole as detailed in ANSI C63.5 (1988) [11] recommended); - RF Signal ge... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.3.2 Method of measurement | Determination of the Transform Factor for the test site 1 For this part of the test, it is necessary to position the measuring antenna such that its phase centre is at the same height above the ground plane as the phase centre of the EUT in the second part of the test. The height of the phase centre of the EUT should b... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.3.3 Procedure for completion of the results sheets | All the necessary processing of the measured results is carried out during the course of the test procedure. The only calculation that remains to be performed before the overall results sheet (table 33) can be completed is the determination of expanded uncertainty of the measurement. This should be carried out in accor... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.3.4 Log book entries | Table 32: Log book results sheet RECEIVER SENSITIVITY Date: PAGE 1 of 2 Temperature:.........°°°°C Humidity:...............% Frequency:.............MHz Manufacturer of EUT:..................... Type No:.............. Serial No:.................. Range length:....................... Test equipment item Type No. Serial N... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.3.5 Statement of results | The results should be presented in tabular form as shown in table 33. Table 33: Overall results sheet RECEIVER SENSITIVITY Date: PAGE 1 of 1 Vertical polarization Horizontal polarization MAXIMUM Usable Sensitivity µV/m MAXIMUM Usable Sensitivity µV/m AVERAGE Usable Sensitivity µV/m AVERAGE Usable Sensitivity µV/m Expan... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.4 Striplines | |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.4.1 Apparatus required | - Digital voltmeter; - Ferrite beads; - 10 dB attenuators; - Power supply; - Connecting cables; - Stripline test facility; - RF Signal generator; - Receiving device (measuring receiver or spectrum analyser). - Monopole or 3-axis probe. NOTE: The receiving device and Monopole (or 3-axis probe) are only required if the r... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.4.2 Method of measurement | 1 The EUT should be placed on a non-conducting support constructed from low dielectric constant (i.e. less than 1,5) material(s) so that its volume centre lies midway between the plates and directly above the central hole drilled (for the purposes of the verification procedure) in the bottom plate. It should be mounted... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.4.3 Procedure for completion of the results sheets | There are two values that need to be derived before the overall results sheet (table 37) can be completed. These are the values for the maximum (or average) usable sensitivity of the EUT and the expanded measurement uncertainty. NOTE: Guidance for deriving the values of the various parameters used in the following calc... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.4.4 Log book results sheet | Table 36: Log book results sheet RECEIVER SENSITIVITY Date: PAGE 1 of 2 Temperature:.........°°°°C Humidity:...............% Frequency:.............MHz Manufacturer of EUT:..................... Type No:.............. Serial No:.................. Test equipment item Type No. Serial No. VSWR Insertion loss Signal generat... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.4.5 Statement of results | The results should be presented in tabular form as shown in table 37. Table 37: Overall results sheet RECEIVER SENSITIVITY Date: PAGE 1 of 1 Vertical polarization Horizontal polarization MAXIMUM Usable Sensitivity µV/m MAXIMUM Usable Sensitivity µV/m AVERAGE Usable Sensitivity µV/m AVERAGE Usable Sensitivity µV/m Expan... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.5 Test Fixture | NOTE: For a Test Fixture, no facility is usually incorporated into its structure to allow for rotation in 45° increments as called for in the definitions. Strictly speaking therefore this test should not be termed either maximum or average usable sensitivity. However, since the changes in performance caused by extreme ... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.5.1 Apparatus required | - Digital voltmeter; - Ferrite beads; - 10 dB attenuator; - Power supply; - Connecting cables; - Test Fixture; - Climatic facility; - Accredited Free-Field Test Site. Additional requirements for analogue speech: - AF source; - SINAD Meter (incorporating telephone psophometric weighting network); - Acoustic coupler (alt... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.5.2 Method of measurement | 1 The Test Fixture should have been verified for use, with the particular type of EUT, on an accredited Free-Field Test Site in accordance with clause 6. Four different measurements of the value of maximum usable sensitivity (for the particular modulation type) should have been taken during the verification, each corre... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.5.3 Procedure for completion of the results sheets | The results taken during the above test method should be processed as follows. Firstly, all the recorded values for the signal generator output power levels (the average level for the case of messages) should be normalized to the value corresponding to normal conditions of temperature and voltage by simple subtraction ... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.5.4 Log book results sheet | Table 38: Log book results sheet MAXIMUM USABLE SENSITIVITY Date: PAGE 1 of 1 Temperature:.........°°°°C Humidity:...............% Frequency:.............MHz Bandwidth of Receiving Device...................Hz Manufacturer of EUT:..................... Type No:.............. Serial No:.................. Test equipment it... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.5.5 Statement of results | The results should be presented in tabular form as shown in table 39. Table 39: Overall results sheet MAXIMUM USABLE SENSITIVITY Date: PAGE 1 of 1 T(normal) T(high) T(low) V(normal) V(high) V(low) V(high) V(low) Maximum usable sensitivity in the Test Fixture µV/m Expanded uncertainty (95 %) dB ETSI ETSI TR 100 027 V1.2... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.6 Salty man/salty-lite | |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.6.1 Anechoic Chamber | |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.6.1.1 Apparatus required | - Digital voltmeter; - Ferrite beads; - 10 dB attenuators; - Power supply; - Connecting cables; - Anechoic Chamber; - Salty man or Salty-lite; - Test antenna (half wavelength dipole as detailed in ANSI C63.5 (1988) [11] recommended); - Measuring antenna (half wavelength dipole as detailed in ANSI C63.5 (1988) [11] reco... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.6.1.2 Method of measurement | 1 The EUT should be mounted on the Salty man/Salty-lite at the height stated in the relevant standard. It should be mounted in an orientation which matches that of its normal usage as declared by the manufacturer. ETSI ETSI TR 100 027 V1.2.1 (1999-12) 162 Determination of the Transform Factor for the test site 2 For th... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.6.1.3 Procedure for completion of the results sheets | All the necessary processing of the measured results is carried out during the course of the test procedure. The only calculation that remains to be performed is the determination of the expanded uncertainty of the measurement. This should be carried out in accordance with TR 100 028-2 [7], subclause 8.2.1.6.1 and the ... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.6.1.4 Log book entries | Table 41: Log book results sheet RECEIVER SENSITIVITY Date: PAGE 1 of 2 Temperature:.........°°°°C Humidity:...............% Frequency:.............MHz Manufacturer of EUT:..................... Type No:.............. Serial No:.................. Range length:....................... Salty: Type:………………. Serial No:…………. T... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.6.1.5 Statement of results | The results should be presented in tabular form as shown in table 42. Table 42: Overall results sheet RECEIVER SENSITIVITY Date: PAGE 1 of 1 Vertical Polarization Horizontal Polarization MAXIMUM Usable Sensitivity µV/m MAXIMUM Usable Sensitivity µV/m AVERAGE Usable Sensitivity µV/m AVERAGE Usable Sensitivity µV/m Expan... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.6.2 Anechoic Chamber with a ground plane | For Sensitivity testing in an Anechoic Chamber with a ground plane reference should be made to the Open Area Test Site test method (subclause 8.2.1.6.3), since the procedures are identical. ETSI ETSI TR 100 027 V1.2.1 (1999-12) 171 The test equipment set-up for the derivation of the Transfer Factor is shown in figure 9... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.6.3 Open Area Test Site | |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.6.3.1 Apparatus required | - Digital voltmeter; - Ferrite beads; - 10 dB attenuators; - Power supply; - Connecting cables; - Open Area Test Site; - Salty man or Salty-lite; - Test antenna (half wavelength dipole as detailed in ANSI C63.5 (1988) [11] recommended); - Measuring antenna (half wavelength dipole as detailed in ANSI C63.5 (1988) [11] r... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.6.3.2 Method of measurement | 1 The EUT should be mounted on the Salty man/Salty-lite at the height stated in the relevant Standard. It should be mounted in an orientation which matches that of its normal usage as declared by the manufacturer. Determination of the Transform Factor for the test site 2 For this part of the test, it is necessary to po... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.6.3.3 Procedure for completion of the results sheets | All the necessary processing of the measured results is carried out during the course of the test procedure. The only calculation that remains to be performed before the overall results sheet (table 45) can be completed is the determination of the expanded uncertainty of the measurement. This should be carried out in a... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.6.3.4 Log book entries | Table 44: Log book results sheet RECEIVER SENSITIVITY Date: PAGE 1 of 2 Temperature:.........°°°°C Humidity:...............% Frequency:.............MHz Manufacturer of EUT:..................... Type No:.............. Serial No:.................. Range length:....................... Salty: Type:………………. Serial No:…………. T... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.1.6.3.5 Statement of results | The results should be presented in tabular form as shown in table 45. Table 45: Overall results sheet RECEIVER SENSITIVITY Date: PAGE 1 of 1 Vertical polarization Horizontal polarization MAXIMUM Usable Sensitivity µV/m MAXIMUM Usable Sensitivity µV/m AVERAGE Usable Sensitivity µV/m AVERAGE Usable Sensitivity µV/m Expan... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.2 Co-channel rejection | NOTE: This test is only usually carried out using a Test Fixture. ETSI ETSI TR 100 027 V1.2.1 (1999-12) 183 Definition The co-channel rejection is a measure of the capability of the receiver to receive a wanted modulated signal at the nominal frequency without exceeding a given degradation due to the presence of an unw... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.2.1 Test Fixture | |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.2.1.1 Apparatus required | - Digital voltmeter; - Power supply; - Connecting cables; - Ferrite beads; - 10 dB attenuator; - Test Fixture; - Climatic facility; - Accredited Free-Field Test Site; - 2 RF signal generators; - 50 Ωload; - AF source. Additional requirements for analogue speech: - 2nd AF source; - SINAD meter (incorporating telephone p... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.2.1.2 Method of measurement | 1 The Test Fixture should have been verified for use, with the particular type of EUT, on an accredited Free-Field Test Site in accordance with clause 6. Four different measurements of the value of maximum usable sensitivity (for the particular type of data modulation i.e. analogue speech, bit stream or messages) shoul... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.2.1.3 Procedure for completion of the results sheets | Some final calculations need to be made before the overall results sheet (table 47) can be completed. The first of these calculations derives the difference in levels between the wanted signal and the unwanted signal for the stipulated reception (i.e. 14 dB SINAD for analogue speech, 10-2 bit error ratio for bit stream... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.2.1.4 Log book entries | Table 46: Log book results sheet CO-CHANNEL REJECTION Date: PAGE 1 of 2 Temperature:.........°°°°C Humidity:...............% Frequency:.............MHz Manufacturer of EUT:..................... Type No:.............. Serial No:.................. Test equipment item Type No. Serial No. VSWR Insertion loss Digital voltme... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.2.1.5 Overall results sheet | The results should be presented in tabular form as shown in table 47: Table 47: Overall results sheet CO-CHANNEL REJECTION Date: PAGE 1 of 1 Co-channel rejection ratio dB Measurement uncertainty (95 %) dB |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.3 Adjacent channel selectivity | NOTE: This test is only usually carried out using a Test Fixture. Definition The adjacent channel selectivity is a measure of the capability of the receiver to receive a wanted modulated signal at the nominal frequency without exceeding a given degradation due to the presence of an unwanted modulated signal which diffe... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.3.1 Test Fixture | |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.3.1.1 Apparatus required | - Digital voltmeter; - Ferrite beads; - 10 dB attenuator; - Power supply; - Connecting cables; - Test Fixture; - Climatic facility; - Accredited Free-Field Test Site; - 2 RF signal generators; - 50 Ωload; - AF source. Additional requirements for analogue speech: - 2nd AF source; - SINAD meter (incorporating telephone p... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.3.1.2 Method of measurement | 1 The Test Fixture should have been verified for use, with the particular type of EUT, on an accredited Free-Field Test Site in accordance with clause 6. Four different measurements of the value of maximum usable sensitivity (for the particular type of data modulation i.e. analogue speech, bit stream or messages) shoul... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.3.1.3 Procedure for completion of the results sheets | Some final calculations need to be made before the overall results sheet (table 49) can be completed. The first of these calculations derives the difference in levels between the wanted signal and the unwanted signal for the stipulated reception (i.e. 14 dB SINAD for analogue speech, 10-2 bit error ratio for bit stream... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.3.1.4 Log book entries | Table 48: Log book results sheet ADJACENT CHANNEL SELECTIVITY Date: PAGE 1 of 2 Temperature:.........°°°°C Humidity:...............% Frequency:.............MHz Manufacturer of EUT:.................. Type No:.............. Serial No:.................. Test equipment item Type No. Serial No. VSWR Insertion loss Digital v... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.3.1.5 Overall results sheet | The results should be presented in tabular form as shown in table 49. Table 49: Overall results sheet ADJACENT CHANNEL SELECTIVITY Date: PAGE 1 of 1 Adjacent channel selectivity dB Measurement uncertainty (95 %) dB ETSI ETSI TR 100 027 V1.2.1 (1999-12) 202 |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.4 Intermodulation immunity | NOTE: This test is only usually carried out using a Test Fixture. Definition The intermodulation immunity is a measure of the capability of a receiver to receive a wanted modulated signal at the nominal frequency without exceeding a given degradation due to the presence of two or more unwanted signals with a specific f... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.4.1 Test Fixture | |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.4.1.1 Apparatus required | - Digital voltmeter; - Ferrite beads; - 10 dB attenuator; - Power supply; - Connecting cables; - Test Fixture; - Climatic facility; - Accredited Free-Field Test Site; - 2 RF Combiners; - 3 RF signal generators; - 50 Ωload; - AF source. Additional requirements for analogue speech: - 2nd AF source; - SINAD meter (incorpo... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.4.1.2 Method of measurement | 1 The Test Fixture should have been verified for use, with the particular type of EUT, on an accredited Free-Field Test Site in accordance with clause 6. Four different measurements of the value of maximum usable sensitivity (for the particular type of data modulation i.e. analogue speech, bit stream or messages) shoul... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.4.1.3 Procedure for completion of the results sheets | Some final calculations need to be made before the overall results sheet (table 51) can be completed. The first of these calculations derives the difference in levels between the wanted signal and the equal amplitude unwanted signals for the stipulated reception (i.e. 14 dB SINAD for analogue speech, 10-2 bit error rat... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.4.1.4 Log book entries | Table 50: Log book results sheet INTERMODULATION IMMUNITY Date: PAGE 1 of 2 Temperature:.........°°°°C Humidity:...............% Frequency:.............MHz Manufacturer of EUT:................. Type No:.............. Serial No:.................. Test equipment item Type No. Serial No. VSWR Insertion loss Digital voltme... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.4.1.5 Overall results sheet | The results should be presented in tabular form as shown in table 51. Table 51: Overall results sheet INTERMODULATION IMMUNITY Date: PAGE 1 of 1 Intermodulation immunity dB Expanded uncertainty (95 %) dB ETSI ETSI TR 100 027 V1.2.1 (1999-12) 211 |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.5 Blocking immunity or degradation | NOTE: This test is only usually carried out using a Test Fixture. Definition The blocking immunity (or desensitization) is a measure of the capability of the receiver to receive a wanted modulated signal at the nominal frequency without exceeding a given degradation due to the presence of an unwanted unmodulated high i... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.5.1 Test Fixture | |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.5.1.1 Apparatus required | - Digital voltmeter; - Ferrite beads; - 10 dB attenuator; - Power supply; - Connecting cables; - Test Fixture; - Climatic facility; - Accredited Free-Field Test Site; - 2 RF signal generators; - 50 Ωload. Additional requirements for analogue speech: - AF source; - SINAD meter (incorporating telephone psophometric weigh... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.5.1.2 Method of measurement | 1 The Test Fixture should have been verified for use, with the particular type of EUT, on an accredited Free-Field Test Site in accordance with clause 6. Four different measurements of the value of maximum usable sensitivity (for the particular type of data modulation i.e. analogue speech, bit stream or messages) shoul... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.5.1.3 Procedure for completion of the results sheets | Some final calculations need to be made before the overall results sheet (table 53) can be completed. The first of these calculations derives the difference in levels between the wanted signal and the unwanted signal for the stipulated reception (i.e. 14 dB SINAD for analogue speech, 10-2 bit error ratio for bit stream... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.5.1.4 Log book entries | Table 52: Log book results sheet BLOCKING IMMUNITY (OR DESENSITIZATION) Date: PAGE 1 of 2 Temperature:.........°°°°C Humidity:...............% Frequency:.............MHz Manufacturer of EUT:................... Type No:.............. Serial No:.................. Test equipment item Type No. Serial No. VSWR Insertion los... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.5.1.5 Overall results sheet | The results should be presented in tabular form as shown in table 53. Table 53: Overall results sheet BLOCKING IMMUNITY (OR DESENSITIZATION) Date: PAGE 1 of 1 Blocking immunity (or desensitization) dB Expanded uncertainty (95 %) dB |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.6 Spurious response immunity to radiated fields (30 MHz to 4 GHz) | In this test method, two signals are transmitted simultaneously towards the EUT. One simulates the wanted signal, whilst the other simulates an unwanted, interfering signal. Both signals are transmitted from the same test antenna, into which they are fed through a combining network. The wanted signal (in the range 30 M... |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.6.1 Anechoic Chamber | |
f968701d34274f489f6c9983c6c42197 | 100 027 | 8.2.6.1.1 Apparatus required | - Digital voltmeter; - Ferrite beads; - 10 dB attenuators; - Power supply; - Connecting cables; - Combining network; - RF load; - Power amplifier; - 3 axis field probe; - Anechoic Chamber; - Test antenna (broadband antenna recommended e.g. biconic, typically 30 MHz to 200 MHz, LPDAs, typically 200 MHz to 1 GHz and 1 GH... |
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