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Summary of Contents for General Instrument DSR-4810
- Page 1 CBS/UPN Television Networks Integrated Receiver- Decoder User’s Guide IRD Description and Configuration From The CBS Digital Affiliate Rack User’s Guide, byCBS Engineering Rev. 1.4, 6/19/2002...
- Page 2 CBS/UPN. Most standalone sites will be equipped with the DSR-4800, which is the base GI 4:2:2P@ML DCII+ IRD. Some will be equipped with the DSR-4810, which offers special video reference features not needed in most applications. Users of the DSR-4800 may disregard those sections on the Video Menu, which refer to the BBG output and reference inputs, as they will not apply to that model.
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Page 3: Table Of Contents
Table of Contents Virtual Channels, Virtual Channel Tables, & Virtual Channel Maps ............ 1 MPEG Service/Program Number ......................1 Menu Editing Procedure......................... 3 Program and RF Menus (DCII-Manual Mode) ..................4 Program Menu (DCII-VCT Mode)......................7 RF Menu (DCII-VCT Mode) ........................8 Status Menu ............................ -
Page 4: Virtual Channels, Virtual Channel Tables, & Virtual Channel Maps
General Instrument DSR-4810 Integrated Receiver / Decoder (IRD) Virtual Channels, Virtual Channel Tables, & Virtual Channel Maps The GI IRD's do not refer to RF channels in the same sense as tuning to a particular transponder “channel” with an analog receiver. IRDs use Virtual Channels. A Virtual Channel (VC) is essentially a pre-configured IRD control setting. -
Page 5: Table 1: Cbs/Upn 241 T6/T4 Nominal Operations Virtual Channel Table
Transport Displayed Service Carrier Modulation Symbol Type Source Name Transponder Satellite Number Frequency Rate Scheme Rate (kHz) MPEG-2 T6_20A_EAST 4100 QPSK 29265.7 MPEG-2 T6_20B_PAC 4100 QPSK 29265.7 MPEG-2 T6_20C 4100 QPSK 29265.7 MPEG-2 T6_23A 4160 QPSK 29265.7 MPEG-2 T6_23B 4160 QPSK 29265.7 MPEG-2... -
Page 6: Menu Editing Procedure
Transport Displayed Service Carrier Modulation Symbol Type Source Name Transponder Satellite Number Frequency Rate Scheme Rate (Hz) MPEG-2 T6_20A_EAST 4100 QPSK 29265700 MPEG-2 T6_20B_PAC 4100 QPSK 29265700 MPEG-2 T6_20C 4100 QPSK 29265700 MPEG-2 T6_23A 4160 QPSK 29265700 MPEG-2 T6_23B 4160 QPSK 29265700 MPEG-2... -
Page 7: Program And Rf Menus (Dcii-Manual Mode)
Press the Save key to save the new setting to the IRD’s database. If the Save key is not pressed within 10 seconds, the new setting will automatically be saved in the IRD’s database. To revert to the prior settings, simply press the Status key and the previous settings will be recalled. - Page 8 Press the Prog key once again. This menu screen will allow the mode to be selected. The top line of the display screen should read “DSR-4810 System Mode ”. Use the Edit knob and Save key to select “ DCII-Manual Mode ” in the bottom line data field.
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Page 9: Table 5: Ird Rf Assignment /Configuration
Table 6: IRD RF Assignment/Configuration Press the Prog key until the top line of the display screen should read “ DSR-4810 System Mode ”. This menu screen will allow the mode to be selected. Use the Edit knob and Save key to select “ DCII-VCT Mode ” in the bottom line data field. -
Page 10: Program Menu (Dcii-Vct Mode)
Using the Edit knob and Save key, select Virtual Channel Table (VCT) #241. This is the nominal map for Telstar 6 and Telstar 4 satellite operations. Using the Edit knob and Save key, select the VC (Virtual Channel) numbers appropriate to the IRD within the digital receive system rack, and corresponding to the regional location of the downlink site as listed in Table 7 below: SD IRD #1... -
Page 11: Rf Menu (Dcii-Vct Mode)
RF Menu (DCII-VCT Mode) The RF menu is a display only menu when the IRD is in DCII-VCT mode. Press the RF In menu key. • Displays the current antenna input being used. • Displays the current satellite ID number assigned to this antenna input. -
Page 12: Status Menu
• This field is in units of Mbps and is capable of 1Kbps steps. • Displays the current forward error correction (viterbi puncture rate) of the current antenna input. Updates automatically while in DC-II VCT Mode. Press the RF In menu key once again. •... -
Page 13: Video Menu (Configurable)
• A four character data field showing the first four characters of the corresponding transponder_name as defined in the Transponder Name Table. Updates automatically while in DC-II VCT Mode. PROGRAM • A twelve-character data field showing the first twelve characters of the name as defined in the Source Name Table Updates automatically while in DC-II VCT Mode. - Page 14 • Simply indicates the Packet Identifcation (PID) of the data packets carrying the video bit stream.. If a video program source is not selected/active, “----“ is displayed under the ” PID ” heading. Press the Video key once again. A second video screen menu will be displayed.
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Page 15: Audio Menu (Configurable)
TERM (Configurable) • A four-character data field allowing control of the manner in which both the primary and secondary genlock reference inputs are terminated. Selections are: “ 75-O ”- 75 ohm “ Hi-Z ” – High Impedance Using the Edit knob and Save key, the “ TERM ” data field should be set to “... -
Page 16: Code
Using the Edit knob and Save key, set the “ AUD” data field to “ 1/2” . The subsequent displayed data fields will now pertain to Audio Channels 1 and 2. AUDIO FORMAT • A nine character data field displaying the Dolby AC3 audio coding mode according to Table 8 below: acmod Audio Coding Mode... - Page 17 If the language code is not available or not supported, “----“ is displayed in the data field. • Simply indicates the Packet Identifcation (PID) of the data packets carrying the audio bit stream.. If an audio program source is not selected/active, “----“...
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Page 18: Remote Menu (Configurable)
• Shows the audio channel pair, either channel 1 and channel 2 or channel 3 and channel 4, associated with the displayed audio control parameter data fields. DYNHI (Configurable) • Allows the user to set the dynamic range compression to “Off”, “Low”, “Mid”... -
Page 19: Alarms Menu (Configurable)
Alarms Menu (Configurable) This menu contains configurable and display-only data fields pertaining to alarm condition of various monitored parameters critical to the performance of the IRD. Press the Alarms key. This display indicates the current condition of the alarms. There are no configurable parameters on this display. Signal •... - Page 20 Using the Edit knob and Save key, set the “ Signal ” alarm threshold level to “-60dB”. Eb/No (Configurable) • Allows the user to set the alarm threshold level for the Eb/No signal level. The alarm threshold can be set from 3.0 to 20dB. Using the Edit knob and Save key, set the “Eb/No”...
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Page 21: Presets Menu
EXT (Configurable) • Allows the user to enable or disable the External Contact alarm function. This feature/control is not used within the CBS digital receive system rack. Using the Edit knob and Save key, set the “ EXT ” alarm function to “... -
Page 22: Ecommendations
The following table defines the C-band to L-band conversion recommendations, giving both a best engineering practice and a design limit for each value: Table 12: IRD C-Band to L-Band Conversion Recommendations Parameter Best Practice Design Limits Input Frequency C-Band 3.7 to 4.2 GHz 3.7 to 4.2 GHz Output Frequency L-Band 950 to 2150 MHz...
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