Table of Contents
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Table of Contents
Summary of Contents for CableTronix CT-DLM870D
- Page 1 CT-DLM870D TV SIGNAL LEVEL METER USER MANUAL...
- Page 2 1. Overview (1) RF input (2) Speaker (3) LCD display (4) Charger indicator (5) RS232 communication port (6) DC-IN port The battery icon shows the remaining power of battery. The current channel plan. The current test mode. The current channel number and video carrier frequency.
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Page 3: Menu Instruction
Channel input key and enter key. Frequency input key and escape key. Main menu key. Power key. Power on and setup Power On To turn meter on, press , the meter will “buzz” and enter the main menu. Menu instruction Press , the meter will display the main menu. -
Page 4: Shutdown Time
11. SERIAL NUMBER Using arrow keys or select the desired item and then press to enter, using arrow keys or toggle the option, then press to confirm the setup. Shutdown time In order to save energy, this meter can be set to automatically shut down when there is no operation. - Page 5 Configure plan In this setup menu, you can set the default settings of all channels. 1 Bandwidth2 Audio IF 3 Digi mode 4 Mode 5 Symbol rate 6 Save settings After setting all items, using arrow keys select “Save settings” and press , and select “YES”...
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Page 6: Software Version
When finished, using arrow keys select YES to preserve and select NO to escape, then press to confirm. Note: The unit needs to access a cable television system. The unit will automatically select the channels with signal strength greater than -20dBmV (40dBuV or -67dBm) and collect them into the user channel plan, recognizing analog or digital channel. - Page 7 Save and manage files. In any test modes, you can save test result as a file and review in future. Press , there will be a pop-up “Input Filename”, input the file name here and press to confirm. The file will be saved.
- Page 8 In the single digital channel measurement mode, the channel number is shown “CHD” instead of “CHV” that the analog channel number is shown. In the middle of the screen it displays the digital average power. Soft key function definition Enter the spectrum analysis of current channel QAM, enter QAM analysis mode Channel setup Change the Channel under Test...
- Page 9 Enter spectrum analysis of current channel Enter A/V measurement mode Channel NO., Type, Frequency, Bandwidth, Audio IF, Save settings Press to enter the spectrum analysis of current channel. For details, please refer to 3.3 spectrum measurement. Press to set the type of analog channel or digital channel. Press to enter A/V measurement mode, simultaneously display the channel audio and video carrier frequencies and...
- Page 10 shows “AUTO” in the bottom of screen, press , the meter enters auto test mode. Press to enter setup of auto test channels, you can select up to 8 channels for auto test. Using keys highlight the desired channel and press select.
- Page 11 Press to toggle the DIV setting among 1dB, 2dB, 5dB, 10dB, 20dB. Press the arrow keys, you can move the marker, the channel bar that the marker located will show on the screen, as well as signal strength. Press to “zoom in” or “zoom out”. You can move the marker to view the channels out of the screen.
- Page 12 Note: The function affects when the signal input level is greater than 60 dBuV. 4. Power supply Power Supply The meter is equipped with a high performance rechargeable battery. The voltage of batter can be monitored automatically, the meter shall alarm when power is low. Press the voltage measurement key, the instrument shall show the battery voltage.
- Page 13 CT-DLM870D TV SIGNAL LEVEL METER Quick Start Guide...
- Page 14 • Make certain that the battery is fully charged. • Turn the unit ON by pressing • The unit will “buzz” and enter the main menu after displaying the logo and model number. • Using arrow keys highlight the SETUP menu and press key or directly press on keypad, the meter will enter SETUP menu and display setting items.
- Page 15 • The unit should immediately display the video carrier signal strength of current channel. • Press the arrow keys to move to the next or previous channel. • Direct channels may be entered by pressing appropriate number keys, then pressing •...
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