Wavetek 147 Specifikace stáhnout pdf (Strana 298)

SDA-5500/SDA-5510 Sweep Configuration: Forward Sweep Configuration (SDA-5500)

274

See Also

½ For more information about reverse sweep plans, see

"Reverse Sweep Channel Plans" (page 290).

Creating Channel Plans

After the transmitter is properly connected, the next step is to build a channel

plan. This channel plan will designate which channels are active in the

system, which channels are scrambled, and which channels are inactive and

therefore can be converted to sweep injection points. The channel plan can

be edited to indicate which channels are to be tested in the Tilt mode, and to

label the channels with the programming content or call letters of the

broadcaster.

To get accurate sweep results without creating any interference to cable

network users, you must have a well-designed channel plan. This is one of

the most critical areas of sweep system setup. Time spent carefully

considering channel plan setup will be well rewarded with accurate, quick,

and non-interfering tests. The remainder of this section shows you how to

set up a forward channel plan quickly, and then make sure that the system

installation is complete and all hardware is working.

NOTE: Acterna strongly encourages the headend

technician or system engineer to study Chapter 3,

"Channel Plans," and edit the channel plan created during

setup to optimize it for your particular application.

CAUTION ! Scrambled channels will not be read as stable

points in this initial channel plan. See "Editable

Parameters" in Chapter 3 for more information. (page 46)

Quick Build Channel Plan Procedure

1. Press the Function and 3 ghi keys to enter the CONFIGURE menu.

You can also use the Navigator to call up the CONFIGURE menu.

2. Use up and down diamond keys to select CHANNEL PLAN.

NOTE: You also use the up and down diamond keys to

scroll through CHANNEL PLAN menu, and through

choices in the Edit Box.

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Wavetek 147 Specifikace Strana 298