| DIGITAL TV SIGNAL ANALYZER 1750QAM (ANNEX-A/B/C) |
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1. FEATURE
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2. SPECIFICATIONS
- FREQUENCY/LEVEL SPECIFICATIONS
- LEVEL MEASUREMENT MODES
- SPECTRUM MEASUREMENT MODES
- LINE AC/DC & BATTERY VOLTAGE MEASUREMENT
- SCAN MODE (Auto search)
- SUB-FUNCTIONS MODES
- CHANNEL PLAN
- POWER SUPPLY
- AUTO TIMEOUT
- OPERATING CIRCUMSTANCES
- MECHANICAL FEATURES
- STANDARD ACCESSORIES
- OPTIONAL ACCESSORIES
FREQUENCY
- FREQUENCY RANGE : 5.0 ~ 1000MHz
- • Accuracy : ±10ppm
- • Resolution : 10KHz
- LEVEL RANGE : 10dBµV(-50dBmV) ~ 120dBµV(+60dBmV)
- • DC ~ 60Hz : 100V DC 또는 RMS
- • IF B/W : 3MHz/ 1MHz/ 280KHz / 150KHz
- • Accuracy : ±1.5dB (@5 ~ 50˚C)
- • Resolutoin : 0.1dB
- • Unit : dBμV, dBmV, dBm
- • Input Impedance : 75Ω
LEVEL MEASUREMENT MODES
- ANALOG CHANNEL
- • Video signal & Audio signal level measurement
- • Ratio of video to audio carrier levels(V/A)
- • Video sync
- • C/N(Carrier to Noise ratio) : Video carrier level is over 50dB
- • CTB/CSO measurement offset values : -2.50MHz ~ +2.50MHz
- DIGITAL CHANNEL
- • Power measurement in the channel bandwidth by integration method(QAM, VSB, COFDM, QPSK signals)
- • Digital Signal Level Measurement
- a. Modulation type : QAM(1024/256/128/64/32/16), VSB, QPSK, OFDM
- b. Annex type : A, B, C
- c. Range of symbol rate : 0.100 ~ 40.000Msps
- d. Range of pilot signal : ±20MHz(only VSB)
- e. Bandwidth : 1 ~ 25MHz selectable (6/7/8MHz automatic setting)
- f. MER, Pre-BER, Post-BER, I/Q Constellation, EVM, etc.
- ANTENNA FOCUS (with Beep sound)
- • Dual Measurement Mode : Two channels can be measured.
- DATA LOGGER
- • Memory capacity of Storable : Approx. 8Mbyte
- • Changeable according to data volume.
- • Setup data logger : NAME, TIME, FILE NAME, LOGGER LIMIT
- • PC connection : Upload data logger
SPECTRUM MEASUREMENT MODE
- FREQUENCY RANGE : 5 ~ 1000MHz
- LEVEL MEASUREMENT RANGE : 10dBµV(-50dBmV) ~ 120dBµV(+60dBmV)
- • Reference level division : 5/10dB unit setting available.
- SPAN : Channel or frequency can be displayed at one screen.
- • Span for CHANNEL SWEEP : 18 / 38 / 58 / 110CH
- • Span & resolution for FREQUENCY SPECTRUM (reverse noise)
- Functions for FREQUENCY SPECTRUM
- • Detection Method : PEAK, AVER (selectable)
- • Max. hold : ON/OFF
- GRAPHIC TILT SPECTRUM RANGE : 5 ~ 1000MHz
- • Indication(Bar graph) : Tilt Slope, Video/Audio signal level, Digital average power
- • Auto arrangement depending on frequencies
LINE AC/DC & BATTERY VOLTAGE MEASUREMENT
- LINE AC/DC VOLTAGE MEASUREMENT RANGE : ±10 ~ 110V
- • Resolution : ±1%(±1digit)
- • Indication : AC/DC max. 4-digit figure
- BATTERY VOLTAGE MEASUREMENT RANGE : 6V ~ 8V
SCAN MODE (Auto search)
- ACTIVE LEVEL SCAN : MATV & CATV band
- BLIND SCAN
- LEVEL INDICATION
- • Analog channel : Video carrier level - Audio carrier level - C/N - Pass/Fail
- • Digital channel : Digital average power – MER – Pass/Fail
- Set a search range according to modulation type (QAM, QPSK, etc.)
- The unit compares a signal and modifies it properly, based on ‘a real signal’ and ‘information of channel list’.
SUB-FUNCTIONS MODE
- The measurement data PRINT : Direct acting
- The measurement data CAPTURE : filename.CAP (Approx. 63block)
- FILE DIRECTORY : PRINT/ REVIEW/ DELETE
- CONNECT TO HOST PC : Upload or Download with Hyper-terminal program
CHANNEL PLAN
- Basic 8CH Plans are stored(changeable) : EIA, CCIR, CHINA, JAPAN, AUSTRAL, UK, OIRT, ST2L
- Each CH Plan can store Max. 8Mbyte.
- All data are available to upload or download and changeable by a computer.
POWER SUPPLY
- RECHARGEABLE BATTERY : Li-Poly 7.4V/3800mA
- • Battery Indicator : Graphic indication on the screen
- • Run time with full charge (over 8 hours) : average 5 hours.
- MAIN ADAPTER
- • Input : AC 110-220V/60Hz
- • Output : DC 12V/1500mA
- • Adapter can be offered according to each country’s conditions.
AUTO TIMEOUT
- The timer setting is programmable to 5/ 10/ 30/ NONE.
- Power turns off automatically when the battery of the unit is low in order to conserve the battery life.
OPERATING CIRCUMSTANCES
- USEABLE TEMPERATURE : 5˚C ~ 50˚C
- HUMIDITY : @80% and below
MECHANICAL FEATURES
- DIMENSION : 218mm W X 105mm H X 58mm D
- WEIGHT : 920g (including batteries)
- GRAPHIC LCD DISPLAY with backlight : 128 X 64 dot matrix
- CASING STRUCTURE : shock-proof plastic (ABS)
STANDARD ACCESSORIES
- USER MANUAL
- CARRYING BAG with SHOULDER STRAP
- Li-poly RECHARGEABLE BATTERY (inside the unit)
- DC ADAPTER
- “F” TYPE CONNECTOR (1ea.)
- USB to DIN-6PIN CABLE : It transmits data to computer or printer
OPTIONAL ACCESSORIES
- Car cigarette lighter adapter cable
- Coxial cable
- Upstream generator(include SPECTRUM MODE)
