|
| HOME > PRODUCTS > DVB-T Signal Analyzer 1720OFDM |
| |
¢Â DVB-T SIGNAL ANALYZER 1720OFDM
|
| |
¡á FEATURES
- 1720COFDM are the best choice for the field technicians to measure digital terrestrial TV(DVB-T standard).
- Frequency Range : 5MHz ~ 870MHz
- They demodulate and accurately measure the DVB-T signals
carried through the terrestrial TV system.
- They are very simple and convenient to use and measure
SNR(MER), EVM, Pre-BER, Post-BER, Constellation Diagram
for the digital TV channels.
- Portable type, Weight less than 1Kg, Computer interface.
(Data Logger, Printing, Editing)
|
|
|
| |
¢Â MAIN FUNCTIONS |
| |
¡á Analog Signal Measurements
- Video/Audio Level
- V/A ratio
- CTB/CSO
- C/N(Video Level : over 50dB§Å)
¡á Digital Signal Measurements
- Digital Power Measurement
(VSB, QAM, COFDM, QPSK)
- C/N(Video Level : over 40dB§Å)
- DVB-T Measurement
1) Modulation : QPSK, 16QAM, 64QAM
2) MER(SNR) : up to 37dB
3) Pre-BER, Post-BER : 10E-2 ~ 10E-8
4) Constellation Diagram : Zoom In
5) EVM : 1.5% ~ 8.0%
- DVB-T Constellation Patterns & Possible Causes
¡á Tilt Spectrum Analysis
- Max. 15 channels / frequencies
¡á Scan Mode(Indication)
- Video Level - Audio Level
- Video Level - CN
- Video Level - PASS(FAIL)
¡á Channel/Frequency Spectrum Analyzer
- Channel Spectrum Span
: Display max. 110 channels at screen
- Frequency Spectrum
1) Span : 2 ~ 560MHz
2)
Detect Method :
PEAK, AVERAGE
¡á Memory List
- User can store/edit Max. 30 channels
frequencies.
¡á Data Logger
- Max. 32 data files can be saved/printed/edited.
¡á Cloning
- User can make many cloning units.
|
¡á Auto Timeout
- 5min, 10min, 30min, OFF(continuous)
¡á Battery Voltage Measurement
¡á Line AC/DC Voltage Measurement
- Range : ¡¾10 ~ 110V
- Accuracy : ¡¾1%(¡¾1digit)
- Indication : AC/DC max. 4 figures
¡á Power Supply
- Battery : 9.6V 2,100mAH
(AA size, Ni-MH 1.2V x 8)
- Duration : Approx. 5hours in Analog
- Measurement(3hours : digital Measurement)
- Adapter : 220V/60Hz, 15V 500mA
¡á Circumstances
- Useable Temperature : 0 ~ 60¡É
- Humidity : @80%
¡á Mechanical Features
- Dimension
: 218mm(H) x 105mm(W) x 58mm(D)
- Weight : 920g(including battery)
- Graphic LCD : 128 x 64 dot matrix
¡á
Standard Accessories
- Carrying Bag
- Carrier Belt
- F-JJ connector
- Users Manual
- RS232C Interface Cable
¡á Optional Accessories
- Car Cigarette Lighter Adapter Cable
- Data Cloning Cable
- Coaxial Cable
|
|
|
¢Â ANALOG SIGNAL MEASUREMENT |
| |
 |
 |
 |
 |
| |
Video Level
Audio Level |
CTB/CSO |
Video Level
V/A ratio |
Video Level
C/N |
|
¢Â DIGITAL SIGNAL MEASUREMENT |
| |
 |
Digital Power |
 |
Digital Power
C/N |
|
¢Â DVB-T CONSTELLATION PATTERNS & POSSIBLE CAUSES |
| |
 |
Signal Strength
Pre-BER
SNR/MER |
|
SR
Spectrum Inversion
EVM
Pre-BER / Post-BER
Real Error Counter
Pre-BER measurement time |
| |
 |
EVM
MER
Constellation Diagram |
|
 |
| |
|
|
Example : Constellation 1/4 Zoom |
| ¡ãTOP |
|
|
|
|
