TV Signal Level Meter Operator`s Manual
Contents
1. Please use only the charger provided with the meter using any other battery charger may overheat or distort the meter or cause fire injury or harm to the environment and will void the warranty The indicator on the front panel will turn red when the instrument is being charged The charging can be done when both the meter is power on and power off Charging time is approximately 8 hours Remove the Connectors between the charger and the AC current and the meter when the charge is complete ZMCP 2 0 MB TV SIGNAL LEVEL METER USER MANUAL If the charger is connected to the AC current for a long time the charger will enter protection status and stop charging You have to reconnect the charger to the AC current to charge again Technical Documents eer SOKHZz 280KHz 25dBmV 120dBmV lt 2dB 0 1dB peak detection 75Q gt 70dBmV 2 5dBmV 30 80V AC DC 2V 30 80V AC DC 2V 1 DC7 2V 1 5Ah Built in rechargeable battery 10 500C 40 80 RH Attention 1 Keep the surface of the instrument clean Do not use organic solvent acid alkali and solvent to clean the surface of the instrument 2 The instrument should avoid vibration or shaking Do not use force on the LCD window so as not to damage the screen 3 Charge batteries every 3 months if meter is not used for an extended period of time2. TV Signal Level Meter Operator s Manual ZMCP 2 0 ZMCP 2 0 MB TV SIGNAL LEVEL METER USER MANUAL Please read this manual carefully Prior to using this product The technical specifications and operating methods included in this manual are subject to changes without notice In case of any inquires after a period of usage please consult the distributor or manufacturer ZMCP 2 0 MB TV SIGNAL LEVEL METER USER MANUAL ___SSS al Learn to use Please be familiar with the functions of the instrument panel prior to operation RF input terminals RF signal will be measured being input through connector The connector can be replaced and installed with TAC or F connector LCD Screen Large character LCD with user friendly back light that can switch automatically Moreover the LCD contrast can adjust automatically Numeric key of Ten numeric keys Function key Brunk line voltage and battery voltage measurement key Mis measurement Dual channel measurement Bb carrier to Noise Ratio measurement key Banne selection audio carrier and A V measurement B aucency input and parameter selection B point O key up Bb bown Charger jack Insert the charger connector to the charger jack to provide external power for the meter when the meter is on it will charge the meter when the meter is power off Charging Indicator While the meter is charging the indicator is red ZMCP 2 0 M
3. B TV SIGNAL LEVEL METER USER MANUAL Overview The meter is designed for test of DVB C network It can measure channel power MER and BER of digital channel and single channel dual channel A V C N voltage of analog channel It is an ideal instrument for cable TV maintenance Carrier to Noise Ratio measurement key Channel input key and Enter key Trunk line voltage and battery voltage TILT measurement Dual channel measurement Function key and Setup key Frequency input and parameter selection Clear key Numeric keys Decimal point Power Switch Button SET key UP DOWN Key ZMCP 2 0 MB TV SIGNAL LEVEL METER USER MANUAL __SSS Operation of measurement Starting up To turn meter on Press Power Switch button and hold until the meter buzz and show de serial number in the display Then it accesses the mode of single channel measurement automatically To turn meter off press Power Switch button at any time oSingle channel measurement coe Using a and a n key enter the previous or dBuV next channel or using numeric key input channel number Lo d A ww tf Z a i al o and press Ex key to enter desired channel al th Note Channel number must be from preset channel plan CH th HE aC otherwise it s invalid Switch between digital channel and analog channel Hint Press key to set the current channel to analog channel and digital channel Setting will be saved
4. d Pa N TILT measurement l IE In this mode press button to enter the status of inputting cH d ziig Cib _ 2 measuring channels Pressing Oo the cursor CHV blinks and toggles between left channel and right channel directly input the channel number by numeric buttons or push arrow keys to adjust the channel number Carrier to Noise Ratio Measurement In the signal level measurement mode press A button to enter Carrier to Noise Ratio measurement mode as showed in fig In signal channel measurement mode the channel number is g w displayed at the bottom left corner the video carrier frequency is dBuy displayed at the bottom right corner The left is measured signal 793 ae 5 level and the right is C N value 09 5050 1 This function is only available when input level is higher than iti MHz 70dB ao tu 0 25 2 Theatrically the noise level should be tested as the carrier turned off but the meter detects the noise with the carrier on thus the test result may not be accurate 3 When entering C N mode C N blinks when the meter is in process of calculation 2 7 Power Supply The meter is equipped with a high performance rechargeable battery The voltage of batter can be monitored automatically the meter will alarm when power is low Press the voltage measurement key the instrument shall show the battery voltage The meter powers off automatically if there is no operation for set power off time
5. for next use Analog channel video carrier level test In this mode the lower screen displays the channel number and it s frequency the upper screen displays the signal level of video carrier and A V ratio Analog channel audio carrier level test Ci Bay 4 Press Ml key the unit will show signal evel of audio Oe ae carrier and frequency In Cou a _ S Seel Hint IN audio carrier level test mode using key adjust i e ng 3 mz the volume of speaker AA UEM Digital channel power test ove dBmV al r If the current channel is analog channel using E key u p switch to digital channel In digital channel test mode the a l channel number frequency channel average power as 14 Z r w ane well as a DVB symbol on the left top ot UL LI ATIT ZMCP 2 0 MB TV SIGNAL LEVEL METER USER MANUAL _SSS S Analog channel audio carrier level test com In digital channel power test mode press E key to enter OVe MER dB BER l QAM test mode which can give result of MER BER w IE a 1M 9 k al AA LS Press pen key to get back to the digital channel average MHz n U ower test mode E c r C e cH ll tL J u Settings of the current channel will show in the bottom of 5 Bsa 6 05 36 bass the screen Digital channel QAM test change settings Press key to enter the setting mode of parameters The QAM item will blink using P keys toggle among the QAM type opt
6. ions 16QAM 32QAM 64QAM 128QAM 256QAM Press key again to enter band width setting the BW item will blink using numeric keys enter a number between 6MHz to 8MHz Press key again to enter symbol rate setting the SR item will blink enter a number between 1 MHz to 9MHz here Single frequency level measurement In the channel test mode using numeric keys input dBmV i A ec frequency number directly and press eS to confirm the unit will enter single frequency level test mode Using MC keys turn the frequency In this status press MHz h 1 7 key you can change the step of frequency tuning The step interval will toggle in following sequence 100MHz 10MHz 1MHz 100 KHz 10 KHZ Voltage measurement Press the meter will access to voltage measurement mode It will display the trunk voltage with automatic i detection of AC or DC and the battery voltage When A nc there is no trunk line connected it will display on the battery voltage Press any other function key to exit the voltage measurement status ZMCP 2 0 MB TV SIGNAL LEVEL METER USER MANUAL _SSS S Tilt measurement In the status of level measurement press HM to access to TILT measurement mode am The measured signal levels of two channels are displayed in the a CW ES dBmV screen the channel numbers are displayed at the bottom The user can compare the two channels in this mode it is also calle
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