User manual DRAKE DIGITAL 1002366

[. . . ] When the SCT860, with the1002366 board, is set to the FIXED CLOCK setting, all null packets will be dropped from the demodulated transport stream. The rate is then built back up, by adding null packets, to the fixed output QAM symbol (baud) rate that is set via the front panel. Dropping null packets is required in some cases in order to bring the rate down to or below the desired rate when the satellite uplink may add extra null packets. PCR CORRECTION The SCT860 performs PCR correction on the processed transport stream before QAM modulation when the SCT860 is used with the 1002366 option and is set up in the FIXED CLOCK mode. [. . . ] Now that the 100-2366 board is installed, the FIXED clock option may be selected and the output BD RATE (baud rate which is the symbol rate) may be set. The original AUTO clock mode is still selectable, if desired. Check current firmware version by pressing the front panel up arrow button while the SCT860 is not in the adjust mode. If you see VERSION 1. 3, VERSION 1. 4, or an earlier version without an F after the number, this is auto clock mode only firmware and must be upgraded for the 1002366 board to function. If you see VERSION 1. 4A or higher with an "A" suffix, this is also auto clock firmware and must be replaced with the fixed clock version. The 1002366 board can be installed with the auto versions of the firmware in place and the SCT will function as before in the auto clock mode. No access to fixed clock mode will be possible. If you see VERSION 1. 4 F or a later version with an F suffix, you already have the correct firmware (highly unlikely unless the 1002366 board is already in place because use of the `F' firmware without the 1002366 board is not allowed). 5 Operation, continued 4) Set up SCTs for download accep tance: For all SCT860s to be up graded, press the UP, LEFT, and ENTER buttons simultaneously for 2 seconds until the displays read: LOADING PROGRAM. This can apply to all SCTs connected for remote control, if desired, however ­ DO NOT DOWNLOAD THE FIXED CLOCK FIRMWARE TO SCTs THAT DO NOT HAVE THE 1002366 BOARD INSTALLED. In many installations, only one SCT will need to be loaded with the fixed clock firmware. On the PC, run the SCT860 Control Program. On the opening screen, select from the top menu line the Tools selection. In the new window that opens there is a selection box listing all of the files available for download. For use with the 1002366 board, select Fixed Version 1. 4 or higher hex from the list. Select the comm Port that you are using on your PC and then select Start to begin the download. When finished, the units will reset themselves. Press the UP arrow button on each unit to confirm that VERSION 1. 4F or higher is now installed. 7) If it is ever desired to remove the 1002366 board and replace the original factory installed jumpers, you must download the Auto Version firmware to the SCT. If additional SCTs, not being up graded with the 1002366 board, currently have firmware below Version 1. 4, you may wish to download the latest version. In this case you will need to perform a second download operation, selecting only these SCTs, and download the Auto Version 1. 4 or higher hex file to those units. Updates from previous versions include: revised/limited acquisition range, correction of a DVB 256QAM interleave setting, and a few other minor adjustments (depending on your current version). OPERATION Follow the instructions in the SCT860 instruction manual. Now that the 1002366 board is installed, the FIXED clock option may be selected and the output BD RATE (baud rate which is the symbol rate) may be set. [. . . ] All implied warranties, if any, including warranties of merchantability and fitness for a particular purpose, terminate three (3) years from the date of the original purchase. DRAKE COMPANY'S entire obligation with respect to this product, and the original purchaser shall have no other remedy and no claim for incidental or consequential damages, losses or expenses. Some states do not allow limitations on how long an implied warranty lasts or do not allow the exclusions or limitation of incidental or consequential damages, so the above limitation and exclusion may not apply to you. This warranty gives you specific legal rights and you may also have other rights which vary from state to state. [. . . ]