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ontents
Chapter 1.
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Getting
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Started
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Chapter 2.
Basic Operations
2-2. How to select measurement mode for analog channels
Chapter 3.
Applications
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Related Manuals for TeleMann 1720 QAM(A)
Summary of Contents for TeleMann 1720 QAM(A)
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Page 1: Table Of Contents
ontents Chapter 1. 1-1. Features ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Getting 1-2. - Page 2 3-2. Level measurement modes for digital channels 3-8. Configuration modes 3-2-1. Channel Power measurement mode 3-8-1. Global Config mode ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・...
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Page 3: Chapter 1. 1-1. Features
1-1. Features 1-2. Safety instructions 1-3. Unit overview 1-4. Installation 1-5. Charging battery 1-6. Cable specifications... -
Page 4: Features
5MHz to 870MHz(or 1GHz→1730 VSB/QAM, 1730 QAM, 1730 OFDM) The contents of this manual will describe the care and operation of Telemann digital TV signal analyzers. ○1720/1730 VSB/QAM are the optimal signal analyzers to test and measure both digital TV signals(8/16VSB) and digital CATV signals(16/32/64/128/256QAM). -
Page 5: Unit Overview
○ Only use the chargeable batteries, adapter, RS232C cable, and cloning cable provided by Telemann. Using unauthorized accessories could avoid warranty. ■Front View ○ Keep in mind that the input level of F-JJ connector is 100 VAC rms/50-60MHz. - Page 6 4) One enter button 5) One LCD backlight/Reset button Logo : TELEMANN Model Number(MODEL) : Spectrum Analyzer Mode Button [2] Serial Number(S/N) : Manufacturer : Telemann Corporation Website : http://www.telemannco.com Origin : MADE IN KOREA Level Measurement Level Measurement Mode Button [3]...
- Page 7 1] LEVEL MEASUREMENT BUTTON 7] POWER BUTTON (1) When you want to measure video/audio carrier levels for each When you want to turn power on or off, channel or frequency, (2) When you want to select the measurement band among MATV, 8] LCD BACKLIGHT/RESET BUTTON CATV, FREQ and MEMORY 1) When you want to turn LCD backlight on or off,...
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Page 8: Installation
] If cloning function is necessary, connect two units using a cloning cable as below; ○ If anything is missed, contact to the dealer or Telemann. 4. Connect the adapter to the unit in order to charge/recharge the batteries. -
Page 9: Charging Battery
1-5. Charging Battery 1-6. Cable Specifcations 1. All Telemann’ s units can interrupt improper power supply in order to protect their There are three cables associated with the operation of Telemann’ s digital TV signal inner circuits from any possible damage. -
Page 10: Chapter 2. 2-1. How To Select Measurement Band
2-10. How to select configuration modes Theses example measurements are designed to acquaint the first user with Telemann Digital TV signal Analyzers. They provide a foundation for understanding how to use Telemann Digital TV signal Analyzers. For a more complete overview of the unit and its capabilities, refer to Chap. 3... -
Page 11: How To Select Measurement Band
2-1. How to Select Measurement Band 2-2. How to Select Measurement Modes for Analog Channels Measurement bands divided into the followings. : (1) MATV measurement band 1. Press button to select measurement band. : If you want to measure MATV channels, measure them in this band. (2) CATV measurement band 2. -
Page 12: How To Select Measurement Mode For Digital Channels
2-3. How to Select Measurement Modes 2-4. How to Enter Channel Number or for Digital Channels Frequency The icon, on the screen means that the channel or frequency set as digital. Press button to select the measurement band and enter the channel number or frequency that you want to measure. -
Page 13: How To Select Channel Number Or Frequency
2-5. How to Select Channel Number or 2-6. How to Change Level Measurement Unit Frequency You can change level measurement unit as below; In order to select the channel number or frequency, press buttons as follows. 1. In Video/Audio carrier levels measurement mode, : Press buttons in order. -
Page 14: How To Select Spectrum Analyzer Modes
2-7. How to Select Spectrum Analyzer Modes 2-8. How to Select Scan Modes There are four scan modes as follows. : MTV SCAN mode, CTV SCAN mode, MEM There are three spectrum analyzer modes as follows. SCAN mode, TILT SCAN mode (1) Channel spectrum analyzer mode : It shows status of both video and audio carrier levels of all active channels in one In order to select scan modes, press... -
Page 15: File(Saving/Reviewing/Printing/Deleting Measurement Files)
2. Connect the unit to your computer using RS232C cable. mentioned above. 3. Install the Telemann software, TC-05 at your computer. 4. Adjust the communication parameters of your computer or printer to those of Then, if you want to delete one file, you select it pressing button and TC-05. -
Page 16: How To Select Configuration Modes
2-10. How to Select Configuration Modes Press button repeatedly, and configuration modes will appear on LCD screen in turn. Press button and next, button to return to a previous screen. [GLOBAL CONFIG] 3-7. File 3-1. Level measurement modes for analog channels 3-7-1. -
Page 17: Video/Audio Carrier Levels Measurement Mode
3-1-2. Carrier to Noise(C/N) Measurement Mode 3-1. Level Measurement for Analog Channels C/N ratio can be measured when video level is over 50dB and you can set 3-1-1. Video/Audio Carrier Levels Measurement Mode parameters in connection with C/N ratio measurement mode in C/N CONFIG mode. You can measure both video and audio carrier levels for the selected channel in this video/audio level measurement mode and see the ratio between video and audio Press buttons... -
Page 18: Ctb/Cso Measurement Mode
3-1-3. CTB/CSO Measurement Mode Telemann Digital Signal Analyzers define and display the worst measurement value accompanied with the frequency offset as CSO value.(Namely, the CSO value has minor value.) ■ What CTB and CSO are.. In order to help user’ s understanding, we explain what CTB and CSO are briefly and The CTB measurement is performed accordingly to the CSO. -
Page 19: Level Measurement Modes For Digital Channels
It can be measured when video level 3-2-1. Power Measurement Mode is over 40dB. Telemann Digital TV Signal Analyzers measure the average power within the digital channel bandwidth. In addition, when channel set as digital, its own frequency is Press buttons Display changed to the center frequency, which will display on the screen. -
Page 20: Snr/Mer, Pre-Ber, Post-Ber, Constellation Diagram
3-2-3. SNR/MER, Pre-BER, Post-BER, Constellation Diagram You have to set modulation type, annex type, symbol rate, spectrum inversion as same as your measurement conditions and the channel or frequency as digital type before measuring SNR/MER, Pre-BER, Post-BER, Constellation diagram. Then, press button till Pre-BER, SNR/MER measurement mode appear on the [VSB Constellation Diagram] LCD screen. -
Page 21: Line Ac/Dc & Battery Voltages Measurement Mode
[ Typical SNR/MER Results ] If you press button one more time the original constellation diagram will be displayed. SNR/MER Grade QAM64 QAM256 6) In order to restart Pre-BER, SNR/MER measurement as well as Constellation Very Excellent diagram, press two times. Excellent If you want to see VSB/QAM/COFDM parameters, press button, and the following... -
Page 22: Memory Measurement Band
3-4-1. Accessing to MEMORY CHAN CONFIG : You can enter MTV → CTV → FREQUENCY → BLANK(DELETION) will appear Telemann unit has a unique measurement band, allowing users to save and at the place of ⓒ in sequence. measure maximum 30 channels and/or frequencies. To use this function, you have to save your desired channel or frequency in MEMORY CHAN CONFIG first and then, measure it in MEMORY measurement band. -
Page 23: Spectrum Analyzer Modes
3-5-2. Channel Spectrum Analyzer Mode 3-5. Spectrum Analyzer Modes When MATV or CATV or MEMORY measurement band is selected, press 3-5-1. Common Operations button one time, Channel Spectrum Analyzer will appear on the As mentioned on page 26 in Chap. 2 Basic Operations, there are three spectrum screen like the following display. -
Page 24: Frequency Spectrum Analyzer Mode
3-5-3. Frequency Spectrum Analyzer Mode Detector Frequency Sweep Span Display Resolution Press button twice, and frequency spectrum analyzer will appear on the screen as FULL 8MHz follows. 220MHz 2MHz 110MHz 1MHz [Frequency Sweep Span : 11M] PEAK 56MHz 500KHz 22MHz 200KHz AVERAGE 11MHz... -
Page 25: Tilt Spectrum Analyzer Mode
(4) How to terminate the entry of channel or frequency in TILT CHANNEL LIST? Press button. [Reverse Noise Spectrum] ■ TILT SPECTRUM ANALYZER After terminating the entry of channel or frequency in TILT CHALLEL LIST, press 3-5-4. Tilt Spectrum Analyzer Mode button three times continuously. -
Page 26: Scan Modes
(1) Selected scan items : VIDEO AUDIO 3-6. Scan Modes Scan Modes scan all channels that not only scan items are marked in CH PLAN/CH CONFIG/MEMORY CH CONFIG, but the levels over the selected reference level in scan modes as well. There are four scan modes as below;... -
Page 27: File
3-7. File 3-7-1. How to save measurements The Saving Measurement feature allows the user to save spectrum analysis data(channel/frequency/tilt), scan measurements data, Pre-BER/SNR(MER), If the user wants to overwrite the file, press button. In this case, all Constellation Diagrams and Parameter displays. measurements in the already existed file will be deleted at all. -
Page 28: How To Delete Measurement File(S)
In order to see TIME, press button, and it will appear like this. If you really want to delete the selected file, press button. To return to the previous display, which shows file name, press it again. (3) To delete all measurement files listed on the FILE DIRECTORY at one time, keep pressing button for more than two seconds. -
Page 29: How To Print A Current Display
(See page 13 in Chap. 1 Getting Started) All files or the selected file will be printed while indicator of remote mode is flashing. 3. Install the Telemann software, TC-05 at your computer. To cancel, press other button, and the display will return to the original FILE 4. - Page 30 (1) Auto Time-out(shown as Auto Timeout on the display) (1) Baud Rate Auto Time-out feature turns off the unit automatically when it has remained It is selected among 1200, 9600, 19200, 38400.(Default : 9600) inactive for a certain period of time to save battery life. The time out period is (2) Data Bit programmable to ;...
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Page 31: Channel Plan
(1) Channel Plan ⓔ Most numeric buttons have alphabetic characters printed on them. Repeated 8 channel plans are already stored in the unit.(CCIR, EIA and etc.) pressing of an alphanumeric button sequences through the values printed on the button. Press the numeric entry buttons or arrow buttons to select the desired channel plan and, then press the enter button to activate the selected channel plan. - Page 32 (1) Signal Type (1) Modulation When MATV, CATV or MEMORY measurement band is selected, the signal type of Modulation type is selectable for the digital channel measurement. currently selected channel or memorized channel showing on the LCD screen can be : VSB, QPSK, QAM256, QAM128, QAM64, QAM32, QAM16, COFDM adjusted to analog or digital.
- Page 33 Model 1720/1730QAM & 1720/1730QAM(A) QAM(ANNEX-A/B/C) Signal Parameters Description Parameters Values QAM Modulation Modulation 16, 32, 64, 128, 256 [CSO OFFSET CONFIG] System Annex ITU-T A, B , C (According to country) 3-8-7. C/N CONFIG 1000～7000K baud (0.100 ～ 20.000M baud The parameters for Frequency Offset, Bandwidth, Noise Frequency related with C/N Symbol Rate Symbol Rate...
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Page 34: Digital Limit Setup
ⓖ The adjustment for signal type or scan must be terminated by pressing button. The unit allows the user to upload or download channel plan as well as other data from Telemann software, TC-05. For more information, please see TC-05 software 3-8-9. DIGITAL LIMIT SETUP manual. -
Page 35: Cloning
3. Connect the unit to your computer using RS232C cable. 2. Connect Master unit to Salve unit using a cloning cable. 4. Turn the power on of the unit. 5. Press or r button and then, buttons in order. Or press 3. -
Page 36: Chapter 4. 4-1. Specifications
4-1. Specifications 4-2. Warranty Information 4-3. Warranty Card... -
Page 37: Specifications
: 8 channel plans(CCIR, EIA and etc.) - Each one consists of MATV and CATV channel plans and can store 250 channels. Each MATV and CATV channel plan (1) Telemann Digital Signal Analyzers can store maximum 170 channels. ○ Digital channel power measurement... - Page 38 - 256QAM Range : 28 ～ 37dB(±2.0dB) ○ Pre-BER, Post-BER Measurement - Min. Measurement Value Setting : 10 ～ 40dB - Range : 10E-2 ～ 10E-9 ○ Symbol Rate - Post-BER Measurement Time Setting & Real Error Counter : VSB - 5.381, 64QAM-5.057, 256QAM-5.361 : Real Errors for Post-BER are countered according to the measurement setting time.;...
- Page 39 Detector Span Display Resolution - Range : 10E-2 ～ 10E-8 - Post-BER Measurement Time Setting & Real Error Counter FULL 8MHz : Real Errors for Post-BER is countered according to the measurement setting 220MHz 2MHz time. ; 10sec./30sec./1min./5min,/10min./30min./60min/Off(Continuous) 110MHz 1MHz - Min.
- Page 40 10. Scan Mode 13. Circumstances ○ Active Level Scan : MATV band, CATV band, Tilt channel, Memory band ○ Useable Temperature : 0 ˚ C ～ 60 ˚ C ○ Scan item selection ○ Humidity : @80% 1) VIDEO AUDIO : Video carrier level - Audio carrier level or V/A ratio 2) VIDEO PASS : Video carrier level - Pass(or Fail) 3) VIDEO C/N MER : 14.
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Page 41: Warranty Information
Phone Number : If this is not possible, for example, if you moved home, please contact the Telemann Service Team on 82 32 678 8566/7. Please have your full Telemann model number Dealer Name : and serial number, date and place, purchase and a brief description of the fault/query ready when contacting our service team.
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