Garmin GPS 500W 파일럿 매뉴얼 부록 - 페이지 18

{카테고리_이름} Garmin GPS 500W에 대한 파일럿 매뉴얼 부록을 온라인으로 검색하거나 PDF를 다운로드하세요. Garmin GPS 500W 50 페이지. For continued airworthiness bell 206b
Garmin GPS 500W에 대해서도 마찬가지입니다: 파일럿 매뉴얼 부록 (24 페이지), 파일럿 매뉴얼 부록 (50 페이지), 파일럿 매뉴얼 부록 (24 페이지), 보충 설명서 (12 페이지), 빠른 참조 (23 페이지), 빠른 참조 (25 페이지), 사용 설명서 (23 페이지)

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Part Two: Section 2

XM Weather

almost complete coverage of the continental United

States, Alaska, and Hawaii. The unobstructed range of

each NEXRAD is up to 250 nautical miles.

When enabled, composite data from all the

NEXRAD radar sites in the United States is shown.

This data are composed of the maximum reflectivity

from the individual radar sweeps. The display is color-

coded to indicate the weather level severity. Informa-

tion about with sites are operational or off-line is also

available.

To display NEXRAD weather on the Map page:

With the Map page (the second page of the

NAV page group) displayed, press the MENU

key. The Page Menu for the Map page appears.

NEXRAD is also available on the Nav 1 page

of the 500W series.

Turn the large right knob to highlight "Dis-

play NEXRAD," and then press ENT. (If "Hide

NEXRAD" appears, NEXRAD radar data are

already enabled; just press MENU again to

exit the Page Menu.)

To display NEXRAD weather on the XM Weather

page:

With the XM Weather page (the third page of

the NAV page group) displayed, look at the

upper left corner of the page. Under the page

title ("XM Weather") either "NEXRAD" or

another weather product appears. If the word

is "NEXRAD," do nothing; NEXRAD weather is

already being displayed.

If the word in the upper left corner of the

page is another weather product (rather than

"NEXRAD"), press the small right (CRSR)

knob to highlight that word. Then turn the

small right knob to change to "NEXRAD."

Press the small right knob again to bring

down the cursor (that is, to stop the blinking

highlighting of "NEXRAD") and retain the

selection.

NEXRAD Intensity

Colors are used to identify the different NEXRAD

echo intensities (reflectivity) measured in dBZ (deci-

bels of Z). "Reflectivity" is the amount of transmitted

power returned to the radar receiver. Reflectivity

(designated by the letter Z) covers a wide range of

signals (from very weak to very strong). So, a more

convenient number for calculations and comparison, a

decibel (or logarithmic) scale (dBZ), is used. The dBZ

values increase as the strength of the signal returned

to the radar increases. There are seven gradations for

rain, two gradations for mixed rain and snow, and two

gradations for snow.

190-00356-30 Rev C