Sunrise Global CM250 IP, CM100 IP, and CM500 IP manual Multiple Cell Changes

Chapter 4

PC-IP Operation

35

Select the appropriate video to audio frequency offset for the second audio carrier of the channel (0.0 to 8.0 MHz). Setting the modulation type will set the default offset. 0.0 MHz indicates that no second audio carrier is used.

Modulation type controls the entries in symbol rate, bandwidth, video-to-audio separation and secondary video-to-audio separation cells. If NTSC is selected, the symbol rate is set to N/ A, the bandwidth is set to 6 MHz, V/A1 is set to 4.5 MHz and V/ A2 is set to 0. If QAM 64 is selected, the symbol rate is set to 5.056941 MHz, the bandwidth is set to 6 MHz for Annex B & C or 7/8 MHz for Annex A, V/A1 is set to 0 MHz and V/A2 is set to 0. If QAM 256 is selected, the symbol rate is set to 5.360537 MHz, the bandwidth is set to 6 MHz for Annex B & C or 7/8 MHz for Annex A, V/A1 is set to 0 MHz and V/A2 is set to 0.

Multiple Cell Changes

To facilitate changes to large channel plans, multiple channels may be selected for editing by using the Shift key or holding down on the mouse key while selecting multiple consecutive channels. To select multiple channels (Figure 4-15), click on the rows or cells and hold down the Shift key (or mouse button) while you make the selections.

Figure 4-15

To edit multiple channels at once, click on a row to insert or delete channels. Single rows or multiple rows may be selected and “mass changed” by clicking on the Multiple Edit button.