DirecTV DSA20MA 설치 매뉴얼 - 페이지 10

{카테고리_이름} DirecTV DSA20MA에 대한 설치 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. DirecTV DSA20MA 12 페이지. Multi-satellite dish antenna with integrated triple lnb and built-in multi-switch

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Verify Azimuth

Alignment

Antenna

Transponder: 23, Sat B

Antenna Location:

Azimuth: 152

Elevation: 50

Tilt: 102

Current Level: 0

Signal:

Fine-tune the

Elevation

Antenna

Transponder: 1, Sat A

Antenna Location:

Azimuth: 152

Elevation: 50

Tilt: 102

Current Level: 0

Signal:

Clear

Peak Level: 75

Clear

Peak Level: 91

Verify Azimuth alignment

S witch to S at B (119WL) on your on-screen menu, using

Transponders 23, 25, 29 or 31. Verify that signal is also

peaked at 119WL by very slightly rotating the antenna around

the penciled marking on the mast. Once satisfied, tighten the

two Azimuth/Mast clamp bolts.

NOTE: S at B (119WL) signal strength may read different than

S at A (101WL) signal strength, depending on the satellite

transmission patterns in the area. You only need to see

whether S at B (119WL) is peaked and not try to compare signal

strength numbers. It's OK to be close but not at the peaks for

both locations simultaneously.

Fine-tune the Elevation

Use S at B (119WL) or S at A (101WL) on-screen signal meter.

While holding the LNB Arm, slightly loosen the two E levation

bolts and two Pivot bolts. Move it up/down slightly and observe

the signal strength on the screen. Find the peak and tighten the

two E levation bolts and two Pivot bolts.

Verify satellite signals

Confirm the final signal-peak readings at all three satellite

locations. S at C (110WL, Transponders 8, 10 and 12.) should

be aligned automatically.

NOTE 1: Occasionally, you may see a transponder at Sat A

(101WL), S at B (119WL) or S at C (110WL) not active, it is

possible that this transponder is reserved for upcoming

programming expansion. S witch to other transponders at the

same satellite location to verify that you have good readings and

that your antenna alignment is satisfactory.

NOTE 2: In most of the U.S., the Tilt Adjustment should be

fixed. However, because of large Tilt angle to 119WL satellite

in E astern S eaboard states, a small amount of Tilt fine-tuning

adjustment may improve 119WL signal strength without

significantly changing 101WL signal reading. For these states,

the following Tilt fine-tuning procedures are recommended:

1. Follow alignment procedures from S tep 1 through S tep 9;

tighten E levation bolts, Pivot bolts and Mast clamp bolts.

2. Fine-tune Tilt Adjustment first by +3 degrees and then

-3 degrees. Tilt is optimized when you see the 101WL

signal reading essentially unchanged and 119WL signal

strength improved by several points. S et Tilt to the

optimized point and tighten Tilt bolts.