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IT-19C

QAM SIGNAL ANALYZER

OPERATING MANUAL

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Summary of Contents for IT-19C

Page 1: ...IT 19C QAM SIGNAL ANALYZER OPERATING MANUAL...

Page 2: ...2 Revision 1 0 of 06 2019...

Page 3: ...4 Data Logger Function 15 4 4 1 General Information 15 4 4 2 Channel Plan List 15 4 4 3 List of Limit Plans 18 4 4 4 Channel Data Logger 20 4 5 General Settings 24 4 6 Analyzer Self Test 25 4 7 Ident...

Page 4: ...e rules of storage and transportation in sections 7 and 8 in order to avoid any mechanical damage of the Analyzer In this manual the following abbreviations are used AC alternating current BER Bit Err...

Page 5: ...5 Figure 1 1 Figure 1 2 This Operating Manual is made for the 02 019 02 hardware version of IT 19C Base Unit software version 01 01 XX XX of IT 19C and ViewIt19 software version for PC...

Page 6: ...equency symbol rate modulation type There is a spectrum analysis mode aimed at searching for any unwanted signal The Analyzer can be connected to a PC for additional service modes The Analyzer allows...

Page 7: ...B Level measurement accuracy at 23 0C operation temperature 1 5 dB Level measurement accuracy at rated operating temperature 2 0 dB Level measurement channel passband 230 60 kHz Frequency indication 6...

Page 8: ...r electronic devices The Analyzer allows you to measure the voltage level of a radio frequency signal parameters of a TV radio frequency signal with analog and digital modulation of the DVB C and J 83...

Page 9: ...o read this Operating Manual carefully as well as to inspect the location of the controls and indicators of the Analyzer Section 4 1 To prepare your Analyzer for operation with the external power sour...

Page 10: ...e measurement modes Channel TV channel parameter measurement Scan Channel level ripple and tilt measurement Spectrum Radio frequency signal spectrum measurement Set the icon of the required mode at th...

Page 11: ...number of the channel CR video level frequency and offset VID video level CN signal noise value V A video level to sound level ratio MARGIN signal noise value margin UPTIME measuring time If a quick...

Page 12: ...exceed 1 5 V The value of voltage level measured at the input connector of the device is displayed at the top line of the screen If the voltage is constant the value is displayed as 50VDC If the volta...

Page 13: ...Settings Two parameters will appear in the drop down menu Level scale Possible values are 2 5 10 dB per division Averaging Possible values are Off Low Medium High The level scale can be adjusted with...

Page 14: ...view is presented in the Figure 4 6 Figure 4 6 The screen shows span window the name and the number of the channel marker position frequency the signal level at the point where the marker is located...

Page 15: ...ans up to 16 limit plans up to 250 channel data logger pages with maximum number of channels The Analyzer allows viewing the saved data off line or by means of a computer Section 4 8 2 4 4 2 Channel P...

Page 16: ...Edit Editing channel parameters 3 Delete Deleting a channel In channel editing mode a table with parameters will appear on the screen The screen view is shown in the Figure 4 9 Figure 4 9 The editing...

Page 17: ...ame Channel name It can be edited in ViewIt19C 5 Modulation The parameter determines a type of modulation 6 Symbol rate The parameter determines the value of the symbol rate To save the channel parame...

Page 18: ...eating a new one The screen view is shown in Figure 4 10 The table contains the names of the limit plans and their status To select the desired plan limit and enable quick check of parameters press F3...

Page 19: ...83 channels Power dBuV Minimum and maximum channel power values MER QAM64 dB Minimum MER value for QAM64 modulation MER QAM128 dB Minimum MER value for QAM128 modulation MER QAM256 dB Minimum MER val...

Page 20: ...to the Channel Test mode This mode allows performing all possible operations with the Channel Data Logger viewing deleting and creating a new page The screen views are shown in figures 4 12 and 4 13 F...

Page 21: ...for preparing a new page will appear on the screen Figure 4 14 Figure 4 14 The name of the page is assigned automatically In the table it is necessary to select a channel plan and a limit plan from t...

Page 22: ...ure 4 15 The table contains Page name Name of the Channel Data Logger page Measured Number of channels Measured Total State Test result Defective an ch Number of analog channels with errors total numb...

Page 23: ...are detected There are errors in the channel parameters The cursor is located on the channel Using the navigation buttons you can select the channel which number and name are displayed at the top and...

Page 24: ...confirmation dialog will appear on the screen You can cancel or confirm page deletion 4 5 General Settings The General Settings mode is designed to set the modes of the analyzer s overall operation To...

Page 25: ...in Figure 4 19 Figure 4 19 The table contains the following verifiable parameters Internal drive Remaining capacity of the Data Logger memory Temperature Temperature inside the analyzer Calibration S...

Page 26: ...ain menu corresponds to this mode The screen view is shown in the Figure 4 20 Figure 4 20 4 8 Operation Controlled by PC 4 8 1 General Information You can control your IT 19C QAM Signal Analyzer via P...

Page 27: ...logger pages 7 view edit and save Channel plans 8 update the firmware The screen view of ViewIT19C is shown in Figure 4 21 Figure 4 21 4 8 3 SoftManager PC Software SoftManager is intended for updatin...

Page 28: ...t is distributed with the programs 4 Run the PC program and find the IT19C in the device list by serial number 4 9 Updating Firmware 4 9 1 General Information The device offers the capability to updat...

Page 29: ...been turned on 4 9 3 Manual Firmware Updating To update the Analyzer firmware manually follow the steps below 1 connect the device to the SoftManager program Sections 4 8 3 4 8 4 To start SoftManager...

Page 30: ...y To charge the battery connect an external power source of 12 V or connect IT 19C to the vehicle power supply of 12 V The Analyzer will turn on in operating mode Fast battery charge will occur in the...

Page 31: ...air Possible reason Firmware failure Methods of correction Update the firmware from an external computer Section 4 9 Fault occurrence The analyzer does not turn off in battery operation display backli...

Page 32: ...this Manual The manufacturer or regional representative shall at his discretion repair or replace for free any Meter recognized as faulty within the warranty period which is twenty four 24 months fro...

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