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USER'S MANUAL. PROMAX-10
1
GENERAL ...............................................................................................................1
1.1
Description ........................................................................................................1
1.2
Specifications....................................................................................................2
2
SAFETY RULES .....................................................................................................9
2.1
Generals ..........................................................................................................9
2.2
Descriptive Examples of Over-Voltage Categories ..........................................11
3
INSTALLATION.....................................................................................................13
3.1
Power supply ..................................................................................................13
3.1.1
Battery charge ..........................................................................................13
3.1.2
Recommendations for using the battery ....................................................14
3.2
Installation and start-up. ..................................................................................14
3.2.1
Contrast adjustment..................................................................................14
4
OPERATING INSTRUCTIONS..............................................................................15
4.1
Description of the controls and elements .........................................................15
4.2
Operating instructions .....................................................................................17
4.2.1
Global configuration menu ........................................................................19
4.2.2
SCAN operating mode ..............................................................................22
4.2.2.1 SCAN mode configuration...................................................................23
4.2.3
CHANNEL-FREQUENCY operating mode ................................................24
4.2.3.1 Channel tuning....................................................................................24
4.2.3.1.1 Video carrier + V/A + C/N measurement.......................................24
4.2.3.1.2 Audio carrier measurement and demodulation..............................25
4.2.3.1.3 CSO-CTB distortion products measurement .................................25
DVB-T / DAB). ..............................................................................27
4.2.3.2 Frequency tuning and configuration ....................................................30
4.2.3.3 CHANNEL-FREQUENCY mode configuration ....................................33
4.2.4
SPECTRUM ANALYSER operating mode. ...............................................34
4.2.4.1 SPECTRUM operating mode. .............................................................34
4.2.4.2 MAX operating mode. .........................................................................35
4.2.4.3 MIN operating mode. ..........................................................................36
4.2.4.4 TRANSIENT DETECTOR operating mode..........................................36
4.2.4.5 SPECTRUM ANALYSER mode configuration.....................................37
4.2.5
TILT operating mode.................................................................................38
4.2.5.1 TILT mode configuration. ....................................................................38
4.2.6
DATALOGGER operating mode................................................................39
4.2.6.1 Datalogger configuration. ....................................................................41
4.3
Connection to a Computer or Printer. ..............................................................42
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Related Manuals for Promax PROMAX-10 Premium
Summary of Contents for Promax PROMAX-10 Premium
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Page 1: Table Of Contents
USER’S MANUAL. PROMAX-10 Premium T A B L E C O N T E N T S GENERAL .......................1 Description ......................1 Specifications....................2 SAFETY RULES .....................9 Generals ......................9 Descriptive Examples of Over-Voltage Categories ..........11 INSTALLATION.....................13 Power supply ....................13 3.1.1 Battery charge ..................13 3.1.2... -
Page 2: General
The PROMAX-10 Premium incorporates the power level measurement function in the whole frequency band, very useful to check a possible input saturation of some broadband demodulators. As a Level Meter, the PROMAX-10 enables the following Premium measurements: Analogue channels: Video carrier level measurement... - Page 3 The maximum frequency range is from 5 to 100 MHz. In designing the PROMAX-10 Premium, special attention was given to building a multi-purpose, accurate, yet easy-to-use instrument. A simple keyboard gives direct access to the various operating modes and, once in them, any measurement parameter can be easily changed using the rotary selector/button.
- Page 4 USER’S MANUAL. PROMAX-10 Premium Maximum input level From 5 to 862 MHz 120 dBµV. (60 dBmV DC to 60 Hz 60 V DC or RMS Reduction of the measurement range depending on the number of channels. Up to 10 channels 110 dBµV.
- Page 5 USER’S MANUAL. PROMAX-10 Premium CARRIER / NOISE RATIO MEASUREMENT Measurement Analogue channels Ratio between carrier level and the channel's noise level. Digital channels Ratio between the channel power and the noise level. The frequency where noise is measured is user definable in absolute or relative value. In the relative mode, the unit takes as default frequency offset the value BW/2 + 0.5 MHz.
- Page 6 USER’S MANUAL. PROMAX-10 Premium SPECTRUM ANALYSER Span From 1 to 100 MHz (1, 5, 15, 30, 50, 100 MHz). Reference level Variable from 60 to 120 dBµV in 10 dB steps. Analysed band Forward (45 to 862 MHz) or Return path (5 to 100 MHz).
- Page 7 USER’S MANUAL. PROMAX-10 Premium Mains to charger adapter 230 V / 50-60 Hz / 13.5 V DC minimum (EUROPE and other countries). ENVIRONMENTAL CONDITIONS This equipment could be used on the following environmental conditions, in these conditions the specifications could also be applied: Altitude Up to 2000 metres.
- Page 8 Extension of SYMBOL RATE measurement range. OPTIONAL ACCESSORIES AD-055 F/female - BNC/female adapter. AD-056 F/female - IEC/female adapter. CI-023 Portable serial printer. CC-208 Data transfer cable to PC or printer. RM-010 Remote control software for PROMAX-10 Premium. AT-20C 20 dB attenuator.
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Page 9: Safety Rules
USER’S MANUAL. PROMAX-10 Premium 2 SAFETY RULES Generals Use this equipment connected only to devices or systems with their common at ground potential. This equipment can be used in Over-Voltage Category I installations and Pollution Degree 2 environments. Use the mains adapter in Over-Voltage Category II installations and Pollution Degree 1 environments. - Page 10 USER’S MANUAL. PROMAX-10 Premium Symbols related with safety: DIRECT CURRENT ALTERNATING CURRENT DIRECT AND ALTERNATING GROUND TERMINAL PROTECTIVE CONDUCTOR FRAME TERMINAL EQUIPOTENTIALITY ON (Supply) OFF (Supply) DOUBLE INSULATION (Class II protection) CAUTION (Risk of electric shock) CAUTION REFER TO MANUAL...
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Page 11: Descriptive Examples Of Over-Voltage Categories
USER’S MANUAL. PROMAX-10 Premium Descriptive Examples of Over-Voltage Categories Low voltage installations isolated from the mains. Cat. I Cat. II Portable domestic installations. Fixed domestic installations. Cat. III Cat. IV Industrial installations. -
Page 12: Installation
USER’S MANUAL. PROMAX-10 Premium 3 INSTALLATION Power supply The PROMAX-10 Premium is a portable instrument powered by a built-in 7.2 V NiMh rechargable battery. Before taking any measurement, the user should make sure that the battery is fully charged (use the mains adapter supplied with the instrument). -
Page 13: Recommendations For Using The Battery
3.2.1 Contrast adjustment When turning on the PROMAX-10 Premium, if the on/off key [16] is held pushed, on the display will appear the message 'CONTRAST ADJUSTMENT - Turn the rotary selector', then turning the rotary selector [9] it is possible to adjust the display contrast to get the best viewing according to working conditions. -
Page 14: Operating Instructions
USER’S MANUAL. PROMAX-10 Premium 4 OPERATING INSTRUCTIONS Description of the controls and elements Front panel Figure 2.- Front panel. F-F (or F-BNC or F-IEC) adapter. Maximum input voltage level 60 VAC rms /50-60 Hz. "F" male base connector. Graphic display with back lighting. - Page 15 USER’S MANUAL. PROMAX-10 Premium Loudspeaker. Connection to computer or printer. CC-208 specific connection cable. Do not connect any cable other than that supplied by the manufacturer, otherwise the instrument may suffer serious damage. Rotary selector / Push button. Figure 3.- PROMAX-10 Premium keyboard.
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Page 16: Operating Instructions
USER’S MANUAL. PROMAX-10 Premium [14] Access to CONFIGURATION menus specific to each operating mode and to the global configuration menu of the unit. [15] Selects the DATALOGGER operating mode. Enables multiple measurements to be taken, visualised, printed or transferred to a PC automatically. - Page 17 USER’S MANUAL. PROMAX-10 Premium In the TRANSIENT DETECTOR mode, the PROMAX-10 Premium operates as a transitory counter in the return path. The level detection threshold and the frequency margin are user definable. The TILT operating mode shows on the display, both graphically and...
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Page 18: Global Configuration Menu
CH-FR, SCAN and DATALOGGER. When a channel has been deactivated, this one will not be able to be tuned nor to be measured. This property allows to make agile the operation of the PROMAX-10 Premium, because it allows to activate only those channels in which we are interested. - Page 19 When this function is ON, the unit automatically turns off when it has remained inactive for a period of 10 minutes. g) BEEP This function permits to activate (ON) or deactivate (OFF) the PROMAX-10 Premium beeper. When it is on, it sounds on pressing any key or when turning the rotary selector in order to alert the user.
- Page 20 Before using the LNB feeding function make sure of absence of other power supplies in the measurement/power supply connector like DC / AC voltages. The entrance of external voltages when trying to feed from the PROMAX-10 Premium, can produce damages in the implied equipment.
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Page 21: Scan Operating Mode
USER’S MANUAL. PROMAX-10 Premium 4.2.2 SCAN operating mode The SCAN operating mode shows, in a single screen, the signal level of all the active channels in the channel plan by means of a bar-graph. In addition, the exact level of any particular channel may be measured by simply placing the marker over it (only analogue channels). -
Page 22: Scan Mode Configuration
USER’S MANUAL. PROMAX-10 Premium In the case of having activated the broadband power detection function (POWER MEAS -> ∑PWR) in the configuration menu of SCAN mode (See section 4.2.2.1), on the display of PROMAX-10 Premium will appear the total power level on the instrument RF input. See the attached figure. -
Page 23: Channel-Frequency Operating Mode
USER’S MANUAL. PROMAX-10 Premium IMPORTANT To leave the SCAN operating mode configuration menu, just press the key of the operating mode you wish to access. 4.2.3 CHANNEL-FREQUENCY operating mode operating mode provides following CHANNEL-FREQUENCY measurements: Analogue channels: - Video carrier level... -
Page 24: Audio Carrier Measurement And Demodulation
The PROMAX-10 Premium performs this measurement automatically at four frequencies around the video carrier (-1.5, -0.5, +0.5... - Page 25 If it is not possible to turn off the carrier at the head-end, the PROMAX-10 allows, like...
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Page 26: Power And C/N Ratio Measurement Of Digital Channels (Dvb-C / Dvb-T / Dab)
(see Edit Channel Plan function at section '4.2.1 Unit Global Configuration) and, if necessary, the CHANNEL BW parameter should be redefined by means of the Channel-Frequency configuration menu. When a channel has been defined as digital, the PROMAX-10 Premium tunes it at its central frequency. - Page 27 F, the unit will make the measurement of noise at the frequency obtained to add to the tuning frequency (channel central frequency) the value defined for the NOISE FREQ. parameter. The PROMAX-10 Premium takes by default NOISE FREQ.
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Page 28: Constellation Diagram Representation, Bit Error Rate (Ber) And Modulation Error Ratio (Mer) Measurement In Digital Channels
DVB-QAM digital signal can be obtained pressing the rotary selector . (See appendix H 'Principle of QAM modulation. The Constellation Diagram'). The PROMAX-10 Premium, after some seconds for calculation, will show a screen like the one of the attached figure. On it besides the Constellation diagram,... -
Page 29: Frequency Tuning And Configuration
USER’S MANUAL. PROMAX-10 Premium The parameters which may be changed and their margins are shown in the following table. change given parameter turn the rotary selector [9] until the field is activated (it will appear shadowed) and then press. The value of the parameter will be activated and may be changed by turning the rotary selector. - Page 30 USER’S MANUAL. PROMAX-10 Premium Figure 24. - Access to the measurement functions, CH-FR operation mode. The measurements when operating in frequency tuning are identical to the described ones for the channel tuning operation (See section “4.2.3.1 Channel tuning”). Configuration When the PROMAX-10...
- Page 31 USER’S MANUAL. PROMAX-10 Premium The parameters, which may be changed, and their margins are shown in the following tables. To change a given parameter turn the rotary selector [9] until the field is activated (it will appear shadowed) and then press. The value of the parameter will be activated and may be changed by turning the rotary selector.
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Page 32: Channel-Frequency Mode Configuration
USER’S MANUAL. PROMAX-10 Premium REMARK: When switching from frequency to channel, if the tuned frequency does not correspond to any channel, the PROMAX-10 Premium will search for the channel nearest to this frequency and will stay tuned to this channel. This operation may take a few moments. -
Page 33: Spectrum Analyser Operating Mode
(see section 4.2.4.5). 4.2.4.1 SPECTRUM operating mode. In the SPECTRUM mode, the PROMAX-10 Premium provides a spectral analysis of the band; the span and the reference level are variable. The spectral analysis can be done in the forward band or in the return path as it is selected in the spectrum configuration menu (section 4.2.4.5);... -
Page 34: Max Operating Mode
(MAXIMUM INGRESS). This option is selected on the Spectrum Configuration menu (section 4.2.4.5). In the MAX mode, the PROMAX-10 holds on the Premium screen the maximum measured level through a dotted line. Figure 32.- MAX mode. -
Page 35: Min Operating Mode
Premium This measurement is used to be carried out on the return path and permits to detect intermittent interferences. Since on this operation mode the PROMAX-10 Premium holds on the screen the maximum measured value (through a dotted line), after making several measurements over the band, it will be possible to detect impulsive type interferences. -
Page 36: Spectrum Analyser Mode Configuration
USER’S MANUAL. PROMAX-10 Premium The COUNTER field shows the number of impulses that have exceeded the level defined by the REF. LINE parameter in the configuration menu of the SPECT mode (section 4.2.5.5). To initialize the TIME and COUNTER fields, press the SPECT [13] key. -
Page 37: Tilt Operating Mode
USER’S MANUAL. PROMAX-10 Premium IMPORTANT To leave the configuration menu of the SPECT mode, just press the key of the operating mode you wish to access. 4.2.5 TILT operating mode. The TILT operating mode displays on-screen, graphically and numerically, the difference in level between any four frequencies previously defined as pilots. -
Page 38: Datalogger Operating Mode
(see paragraph Channel Plan editor at section 4.2.1. Unit Global Configuration). These measurements are stored in the memory so that they can be subsequently viewed, printed or transferred to a PC. The PROMAX-10 will Premium store up to 55 obtained channels or loggers in the memory, with a maximum of up to 140 analysed channels in each. - Page 39 USER’S MANUAL. PROMAX-10 Premium On the bottom of the display appears present time and date. To modify them see section 4.2.1 Global Configuration Menu. To accede to any of the different fields of the initial screen of the LOGGER function, turn the rotary selector [9] until it is activated (it appears shadowed) and next press it.
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Page 40: Datalogger Configuration
USER’S MANUAL. PROMAX-10 Premium PROMAX-10 Premium LOGGER NUMBER DATE: 08:55 21-03-2004 CHANNEL PLAN: CCIR AUDIO: 5.50 MHz (FM) UNITS: dBuV THRESHOLD: NOISE FREQ.: BW/2 CHAN FREQ 487.25 503.25 519.25 535.25 551.25 575.25 599.25 607.25 >37 615.25 >42 631.25 647.25D MER = 33 BER = 8.8E-6... -
Page 41: Connection To A Computer Or Printer
1) Prior to connecting the equipment to a PC, disconnect both from their respective power supplies. 2) Connect the end of the connection cable corresponding to the PROMAX-10 Premium to connection [8] and the other end to the serial port of your computer or printer. - Page 42 CHANNELS PLAN PROCESSOR: Modify, add or delete channel plans. CONFIGURATION: Permits to modify all the configuration parameters. DATALOGGER: Permits to edit and to save all the measurement contained in a logger. UPDATE: Allows to update the PROMAX-10 Premium software version.
- Page 43 USER’S MANUAL. PROMAX-10 Premium 5 MAINTENANCE This part of the manual describes the maintenance procedures and the location of faults. Instructions for returning by mail Instruments returned for repair or calibration, either within or outwit the guarantee period, should be forwarded with the following information: Name of the Company, name of the contact person, address, telephone number, receipt (in the case of coverage under guarantee) and a description of the problem or the service required.
- Page 44 USER’S MANUAL. PROMAX-10 Premium APPENDIXES APPENDIX A.- MEASUREMENT OF THE VIDEO CARRIER LEVEL (C -ANALOGUE CHANNELS- A) Negative Video Modulation (PAL/NTSC) The measurement of the video carrier level is carried out taking the modulation peak as the measurement value, this being the maximum value of the signal during the line synchronism.
- Page 45 USER’S MANUAL. PROMAX-10 Premium APPENDIX B.- MEASUREMENT OF THE ADJACENT CHANNEL LEVEL -ANALOGUE CHANNELS- The user can obtain the ratio between the video carrier amplitudes of two adjacent channels. − Figure 45.- Measurement of the adjacent channel level. Differences of more than 3 dB between carriers of adjacent channels may cause problems of interference in reception.
- Page 46 USER’S MANUAL. PROMAX-10 Premium APPENDIX C.- MEASUREMENT OF THE VIDEO / AUDIO RATIO -ANALOGUE CHANNELS- − It permits to measure the ratio between the video carrier and the audio carrier amplitudes. Although this process depends on the standard used, it is usual to consider that a properly transmitted PAL channel should have a sound subcarrier 13 dB below the video carrier.
- Page 47 TV it is usual to refer the noise level to a bandwidth of 5 MHz (this is the case of the PROMAX-10 Premium). If it is desired to know the C/N measurement for a different bandwidth (BWx), the following correction should be applied.
- Page 48 USER’S MANUAL. PROMAX-10 Premium APPENDIX E.- CARRIER / NOISE RATIO MEASUREMENT (C/N) Figure 47.- C/N ratio measuring range. Example Suppose that the video carrier level for an analogue channel, is of 10 dBmV, from the diagram we can deduce that the measurement range is of 48 dB.
- Page 49 USER’S MANUAL. PROMAX-10 Premium APPENDIX F.- CARRIER TO NOISE RATIO FOR 64-QAM DIGITAL CHANNELS (C/N). For a 64-QAM DBV-C digital signal with a bandwidth of 8 MHz, the C/N ratio must be better than 20 dB. Measurements lower than this value will correspond to signals with a no acceptable quality.
- Page 50 USER’S MANUAL. PROMAX-10 Premium APPENDIX G.- MEASUREMENT OF THE MODULATION ERROR RATIO (MER). Analogue and digital carriers are very different in terms of the signal content and the power distribution over the channel. Therefore need to be measured differently. The amount of distortion in a system is related to the total power of all of the carriers making accurate power measurements critical for optimum performance.
- Page 51 USER’S MANUAL. PROMAX-10 Premium R M S E rror M ag nitud e Id ea l S ym b ol A ve ra ge S ym bo l M a gn itu d e Figure 48.- Modulation error ratio (MER) 64 QAM set decoders require better than 23 dB MER to operate.
- Page 52 USER’S MANUAL. PROMAX-10 Premium APPENDIX H.- PRINCIPLE OF QAM MODULATION. THE CONSTELLATION DIAGRAM The modulation process implies to transfer the information contained in a signal to a high frequency carrier. Modulation QAM, in concrete uses modulation in quadrature consisting of two carriers each one of the same frequency, one called I (in phase) and another out of phase 90°...
- Page 53 USER’S MANUAL. PROMAX-10 Premium Figure 50 shows the other signal (Q in quadrature) on a vertical axis to consider the 90° phase change. Figure 51.- I-Q states combination Figure 51 shows the combination of these two signals. This image constitutes the Constellation Diagram of the modulated digital signal.
- Page 54 USER’S MANUAL. PROMAX-10 Premium APPENDIX I.- FREQUENCY OFFSET ADJUSTMENT FOR TUNING ANALOGUE AND DIGITAL CHANNELS. It is possible to introduce an offset of the tuning central frequency for the channels defined in each channel plan using the ∆FCH parameter (± 2 MHz). Therefore, it is possible to adapt the measures to irregular tunings, due to small displacements on channel central frequencies that are defined by the standard channel plan.