User manual DRAKE DIGITAL EH24

[. . . ] EH24 Encoder Host With SDE24 Encoders Instruction Manual EH24 ENCODER HOST /QAM MODULATOR QAM OUTPUT 10. 564 Mbits/S ENCODER SELECT ENTER TM is a registered trademark of the R. L. Drake Company P/N: 3852510-02-2010 Printed in U. S. A. © Copyright 2010 R. L. Drake LLC 2 Caution Statements WARNING: TO PREVENT FIRE OR ELECTRICAL SHOCK DO NOT EXPOSE TO RAIN OR MOISTURE A product and cart combination should be moved with care. Quick stops, excessive force and uneven surfaces may cause the product and cart combination to overturn. [. . . ] In the CW mode, the CW carrier can be measured on a spectrum analyzer without a need to apply a bandwidth correction or it can be measured with an analog meter tuned to channel center. The CW power measured will equal the channel QAM power when the modulator is returned to NORMAL output mode. Usually QAM signals are set 5 dB to 10 dB below analog NTSC channels when balancing a system. PRBS menu entries are used for testing purposes only and should normally not be selected by the user. OUTPUT CHANMAP, OUTPUT CHANNEL: Select the desired EIA CATV channel output using these two menus. RF LEVEL: Select the desired RF output signal level. The available range is between +45 dBmV and +56 dBmV, selectable in 0. 5 dB steps. SETUP: ENCODER xx ENCODER SELECT: The LEFT and RIGHT buttons allow the user to scroll through the encoder numbers for each encoder installed in the EH24 as well as the EH24 itself. Use the LEFT and RIGHT buttons to select the encoder to be programmed. VIDEO: This menu entry allows the user to select between SVIDEO and COMPOSITE video input for each selected encoder. FORMAT: Either MPEG2 or MPEG4 H. 264 may be selected as the output format for the selected encoder using this menu item. Encoder 2 on a given SDE24 has no option. RESOLUTION: The resolution of the video output of each encoder may be selected from this menu item. The choices range from 720 x 480 thru 353 x 240 as shown on the software flow chart on page 9. BRIGHTNESS, CONTRAST, SATURATION and HUE: These menu items allow the user to assign each of these parameters of the output video values from 0 to 255. MAX AUDIO IN: This menu entry allows the user to set the maximum audio input which may be input to the selected encoder. AUDIO GAIN: The audio output level can be chosen from this menu item by selection of the appropriate gain. The values range from + 15 dB to - 15 dB. Audio output can also be completely eliminated using the `MUTE' selection. AUDIO ENCODER: The SDE24 includes audio encoders for Dolby Digital Stereo commercial encoding (AC3) or MPEG1 Layer 2 audio encoding (MP2). In the USA, the majority of applications will use AC3 but if your network is using Annex A (DVB) set top boxes, they may require the MPEG audio selection. Some TVs and set top boxes will decode either mode but be sure to set the encoder to the mode used by other programming on your system to insure complete compatibility. [. . . ] DRAKE is not responsible for damage caused by lightning, nonprofessional alterations, "acts of God" shipping damage, poor , storage/handling, etc. DRAKE will make note of any shipping damage upon receipt. You will need to send proof of purchase to receive warranty service. Typically, a copy of the invoice from an R. L. [. . . ]