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Related Manuals for Planar IT-14
Summary of Contents for Planar IT-14
- Page 1 IT-14 DVB-T SIGNAL ANALYZER OPERATING MANUAL...
- Page 2 22.04.2011...
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Page 3: Table Of Contents
TABLE OF CONTENTS GENERAL INFORMATION........................4 1.1 I ............................4 NTRODUCTION 1.2 S ..........................4 AFETY PRECAUTION GENERAL PRESCRIPTION AND PRINCIPLE OF OPERATION............4 2.1 F ..............................4 UNCTION 2.2 E ........................5 NVIRONMENTAL CONDITIONS 2.3 P ..........................5 ACKAGE CONTENT 2.4 S ............................6 PECIFICATION 2.5 D ......................7 ESIGN AND OPERATION OVERVIEW... -
Page 4: General Information
The IT-14 offers measurement of the following parameters of analog channels: video carrier level, V/A ratio, and C/N ratio. For digital channels channel power can be measured. For DVB-T signals IT-14 offers measurement of reception quality parameters: modulation error ratio MER, bit error ratio BER before and after Viterbi decoder, erroneous packets after Reed-Solomon decoder counter and constellation diagram. -
Page 5: Environmental Conditions
The appearance of the Analyzer is shown in Figure 1.1. and Figure 1.2. Figure 1.1 Figure 1.2 This Operating Manual is made in accordance with the firmware version 13.0.0.4 for IT-14. Environmental conditions Normal operating conditions: a) ambient temperature (23±5) °С;... -
Page 6: Specification
Frequency auto tuning range................±0.500 MHz Warm-up time, less than..................5 min IT-14 powering: from AC circuit with 100/220V voltage and 50/60 Hz via 12V/1.2A charger; from external DC source with 10 to 14 V voltage and ripple level no greater than 0.5 V;... -
Page 7: Design And Operation Overview
Design and operation overview 2.5.1 Principle of operation The IT-14 Analyzer is a receiver of DVB-T signals with demodulation of the traffic stream to MPEG-2. The input tuner is a super heterodyne receiver with triple frequency conversion (auto or manual frequency tuning). -
Page 8: Component Arrangement
Upon receipt of the package, check the availability of the items contained in it against the list provided (Section 2.3). If the IT-14 has been kept in the environment other than the rated operating conditions, leave your Analyzer in facilities with normal operating conditions at least for 2 hours prior to operation. -
Page 9: Measurement Procedure
Before you start operating your IT-14 make sure to carefully read this Operating Manual 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 source, connect the Charger to the connector located on the front panel of the IT-14 and then to the power source. -
Page 10: Level Measurement Mode
when choosen - Data manager menu (Figure 4.3.4). Figure 4.3.3 Figure 4.3.4 Function of service menu and data manager menu are selectable with the functional keys F1, F2 and F3, which is under the required icon. To return to corresponding menu from the selected function, press key. - Page 11 When you open LEVEL mode, you can see channel plan name indicated by «Plan:», if one has been selected. When the LEVEL function is activated, the IT-14 measures the parameters of the TV channel which was last selected in one of the measurement modes. This mode will be indicated by Ch shortcut in command line.
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Page 12: Scan Measurement Mode
The range of voltage measurement at the Analyzer input is from 10 to 100 V. The absolute error of the measurement is lower than ±1.5 V. The measured value of the voltage is indicated in position 7 (Figure 4.3.5). If the voltage is direct you will see V= on the screen, if it is alternating V~ will appear. To measure channel parameters, select the required channel by ◄... -
Page 13: Ripple Measurement Mode
each time, signal is appeared on the input. It is shown by the progress indicator «channels scanning». The modulation type of the channel indicated by the marker will be shown in position 6 while the measurement is being performed. If one of the channel plans has been selected, the scanning will be performed only over the selected plan channels. -
Page 14: Spectrum Measurement Mode
You can return to SCAN measurement mode by pressing F2 key. 4.3.5 SPECTRUM measurement mode This measurement mode is selected from SCAN mode by pressing F3 key. This mode displays spectrum of the input signal in scaleable frequency range. See Figure 4.3.10: Figure 4.3.10 On the screen you will see the following data: 1 –... - Page 15 5 – perBER value 6 – postBER value 7 – erroneous packets after Reed-Solomon decoder counter 8 – command line with commands activated by F1, F2 and F3 keys 9 – channel name (when working with selected channel plan) 10 – demodulator status. When this mode is activated or tuning to a channel is performed, the Analyzer will start input signal synchronization process, which will be indicated by a progress bar in position 10.
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Page 16: Constellation Measurement Mode
16 channel plans (up to 112 channels per plan), and up to 130 data log pages (with maximum number of channels). The IT-14 allows you to view the saved data in stand-alone mode or by means of a computer. - Page 17 1 – table header line 2 – channel plan selected for the measurement 3 – command line with commands activated by F1, F2 and F3 functional keys 4 – scroll bar The first column is contains a plan index number. The second column is a plan name of up to 15 characters in length.
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Page 18: Data Log Manager
a) Channel – channel number; b) Type – channel type: analog or digital; c) Frequency – frequency of the video carrier for analog channel or central frequency for digital channel; d) Fnoise – frequency shift for C/N ratio measurement for analog channels. Can be adjusted from -8000 to +8000 kHz with 125 kHz step. - Page 19 4.4.3.2 Data log pages icon in the Data manager menu refers to this mode. This mode allows you to perform with data log pages such operations as viewing, deleting and creating of a new page. The screen view is represented in the Figure 4.4.5 and Figure 4.4.6. Figure 4.4.5 Figure 4.4.6 On the screen you will see the following data:...
- Page 20 ratio (in dB). The fourth column displays MER (in dB) and the fifth column will display postBER values. For digital channels you will see «--» message in the second and third columns, and for analog channels «--» message in the fourth and fifth columns. If the noise measurement has been disabled for one of the analog channels, «--»...
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Page 21: Setup
Self-test icon in the Service menu refers to this mode. The self-test mode allows you to check the performance of the components of IT-14 and its functional condition. The screen view is represented in the Figure 4.6.1. Figure 4.6.1... -
Page 22: Identification
Program mem. Firmware status. This function checks the firmware status of your IT-14. If no errors detected, the Ok status is displayed. If an error has been detected, the Error status is displayed. In this case, the firmware must be reinstalled (Section 4.9.5). -
Page 23: Battery Operation
CAUTION! IT-14 is shipped with nonstandard Li-ion battery. In the case of its malfunctioning or expiration of its life time, it can be repaced with a new one only in the service center. Do not try to do it yourself. -
Page 24: Firmware Updating
4.9.5 Firmware updating The IT-14 offers the capability to update its firmware without use of any additional equipment. We go on with improving IT-14 firmware. Each version of the firmware has its unique identification number, e.g. 13.0.0.3. The Analyzer firmware version is displayed in the Identification mode (section 4.7). -
Page 25: Channel Template Editing
The IT-14 will reboot and start operating similar to when it has been powered up. CAUTION Do not interrupt the firmware updating process. This can lead to malfunction of the Analyzer. -
Page 26: Maintenance
Defect detection: High error at level measurements in some or all of the channels. Possible reason: Increased wear of the RF input adapter. Method of correction: Replace the RF input adapter by a good one. Possible reason: Incorrect channel plan setting, which makes the IT-14 to tune to an offset video carrier point. -
Page 27: Storage
90 % (at 30 °С). TRANSPORTATION The IT-14 must be shipped in any closed vehicle at temperature from -20 to +40 °С, relative humidity 90% (at 30 °С) and atmospheric pressure of 84 to 106.7 kPa (630 to 800 mm Hg).