Nautel NX15, Operation And Maintenance Manual

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NX15/NX25 Operations and Maintenance Manual Operating the transmitter
Page 2-60 Issue 6.0 2019-01-31
Selecting the DCC mode
The NX15/NX25 is capable of several DCC modes (see “Editing or Creating Presets” on
page 2-51 ), each with varying performance in terms of energy savings and effects on the
reproduced signal. The selectable options are:
• AMC (see Figure 2.43 )
• EAMC (see Figure 2.44 on page 2-62 )
• DAM (basic) (see Figure 2.45 on page 2-62 )
• DAM Full (see Figure 2.46 on page 2-63 )
• DCC1 (see Figure 2.47 on page 2-63 )
Once a DCC curve has been selected, the desired
Max DCC Compression
level can be entered.
This setting defines the maximum reduction in carrier (or carrier and sideband) power for a
given curve. Standard compression settings are as follows:
• AMC and EAMC modes: 3 dB
• DAM, Full DAM and DCC1 modes: 4.44 dB
Figure 2.43: AMC