卫星链路计算软件Satmaster帮助

上下行部分

Site Name / Location

Enter the literal name of the site where the earth station is located up to a maximum of 40 characters (18 for country data files)

Example input for country data files (18 characters maximum)

"Liverpool"

Example input for all other forms (40 characters maximum)

"Liverpool, Merseyside, England."

基站名称

输入基站所处位置的名称，最多40个字母。

国家数据文件名举例（最多18个字母）：liverpool

其他格式输入举例："Liverpool, Merseyside, England."

Site Latitude

Enter the latitude of the site where the earth station is located. This must be entered in decimal degrees with the suffix N for north and S for South. No spaces are allowed. Examples 53.33N or 27.89S

Important Note:

When entering data into country data files latitudes are required in degrees and minutes format as obtained from maps and atlases. In this case the fractional part represents the number of minutes and cannot exceed 59. In all other cases input in decimal degrees are assumed. A conversion facility is provided under the calculate menu.

基站纬度

输入地面站的纬度。必须以小数后跟N或S表示。不能输入空格。比如53.33N或27.89S 注意事项

当输入国家数据文件时纬度需要以地图上的度和分为单位。这种情况下，小数部分为分的表示，不能超过59。在其他情况下，都是以度来表示的。Caculate菜单中有一个转换工具。

Site Longitude

Enter the longitude of the site where the earth station is located. This must be entered in decimal degrees with the suffix W for west and E for East. No spaces are allowed. Examples 3.00W or 29.79E

Important Note:

When entering data into country data files longitudes are required in degrees and minutes format as obtained from maps and atlases. In this case the fractional part represents the number of minutes and cannot exceed 59. In all other cases input in decimal degrees are assumed. A conversion facility is provided under the calculate menu.

基站经度

输入基站的经度。必须以小数后跟E或W表示。不能输入空格。比如3.00W 或29.79E

注意事项

当输入国家数据文件时纬度需要以地图上的度和分为单位。这种情况下，小数部分为分的表示，不能超过59。在其他情况下，都是以度来表示的。Caculate菜单中有一个转换工具。

Altitude of Site

Enter the altitude of the earth station above sea level. This is primarily used in the calculation of rain attenuation and atmospheric absorption. The units are kilometres.

5.0 km is the maximum altitude allowed. Enter zero if you will prefer a slightly pessimistic worst case link budget calculation.

基站海拔

输入基站的海拔。这主要是用来计算雨衰和大气吸收值，单位是千米。

最大允许输入的海拔为5km。如果需要比较悲观链路预算可以输入0。

Frequency

频率

Enter the centre frequency of the carrier in GHz. For the uplink, typical values are around 6GHz and 14GHz for C and Ku band respectively. For the downlink, values of 4GHz and 12GHz are typical. The accepted range is 1GHz to 50GHz

输入上行载波的中心频率，以Ghz为单位。典型C波段和Ku波段的值为6GHz和14GHz。下行的典型频率为4Ghz和12GHz。可输入的范围为1Ghz到50GHz。

Polarization

This is simply the polarization system adopted by the wanted satellite transponder and is either linear (ie vertical & horizontal) or circular. Enter the letter "V" for vertical polarization, "H" for horizontal polarization or "C" for circular polarization.

极化

这就是所需卫星转发器的极化方式，可以选线性（垂直和水平）或圆极化。输入“V”为垂直极化，“H”为水平极化，“C”为圆极化。