Scientific Atlanta D9225 manual «$Erxwiuhtxhqf\Vhwwlqjv, Alt, Wide

StepToxit1.from(youPressAltcantheModealsoVIEWpressinterfacebuttontheALTtobuttonvideoÖuntiltheALTLEDisOFF).

Table 4 provides a summary of available Alt Mode functions.

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As you make changes to the current setup, the receiver checks that the Local Os- cillator frequencies, Crossover frequency, Frequency and Frequency Mode settings are compatible with each other. A Crossover frequency is required only if you are using both Local Oscillators (i.e., you have a dual-band LNB). If used, the Local Oscillator Frequency #2 must be greater than Local Oscillator Frequency #1. The operating Frequency, Local Oscillator frequencies plus the Crossover frequency must be correctly set as specified by your antenna/LNB manufacturer, Bandde ler/reseller or local service provider. The Frequency setting plus other settings used depend on subscriber/network services available, and may vary.

C- (3.7 GHz th ough 4.2 GHz) and Ku-Band (10.7 GHz through 15 GHz) op-

Table3erationKuC--..CandKuL-Bandfrequency=-Band(operating)frequencyfrequencycalculationsg￿(D(L Osiluion-latg(Localor)-gOscillator)(Downlink)

heBandrelationships betwe the Downliwnlink) frequency, the Local Oscillator frequency the resulting L-Band (op rating) Freque cy are shown in Table 3 for both

1Frequency

2Press ALT once for Alt-1 Mode operation

3Press ALT twice for Alt-2 Mode operation

4Enables or disables Signal Search

Table4Alt-1

.

AvailableDescriptionAltModefunctions

PressAlt-2

Description

Press

FECC/Ku.Q.

BandECignalRateSelectQulity

321

BAUDCK1

LockBaudLevelRate

1

321

MODE

FrequencyMode

4

ñ

ñ

4

YM

ymbolRate

5

LO2

LocalOsc.Freq.#2

5

SIG

Strength

6

WIDE

AspectRatio

6

FRE

QFrequency

7

7

POL

SignalPolarization

8

XOVER

CrossoverFrequency

8

FC

utoFrequencyControl

9

ñ

ñ

9

!

ALT

AltMde1

ALT

ALT

AltMode2

ALT

ñ

ñ

0

ARCH

SignalSearch"

0

VIEW

Exittovideo

VIEW

VIEW

Exittovideo

VIEW

Save

Saveseachchange

SELECT

Save

Saveseachchange

SELECT

The examples that follow are provided to help explain how frequency settings can be changed by switching from lower to higher resolution at the front panel display. The (default) lower resolution display (i.e., four most significant digits) changes the value up or down in larger steps for making coarse adjustments. When selected, the higher resolution display (i.e., four least significant digits) changes the value up or down in smaller steps for making fine adjustments. When in Alt-1 or Alt-2 Mode, pressing the up œor down –arrow button advances the frequency up or down. You use the left Õor right Œarrow button to change from low to high resolution. Note that when displaying high resolution (i.e., least significant digits), the decimal point appearing after the least significant digit flashes ON and OFF repeatedly.

Downlink frequency: (see Figure 7) For example; if the current Downlink fre- quency is 12.25225 GHz, changing to Alt-1 Mode (ALT LED flashes) and then￿￿ pressing 7 displays the four most significant digits on the front panel (i.e., 12.25). At low resolution (A), pressing the up œor down –arrow button advances the frequency up or down in 10 MHz steps (i.e., 12.26, 12.27, and so on). Pressing and holding down the up œor down –arrow button will increase the step size fur- ther.