Aviation RF Link

General

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The program Aviation RF Link allows quick calculation of the forward link from a ground station to an aircraft. Based on the RF power of the ground station, the tool calculates the distance with a given field strength to be achieved at the aircraft antenna or calculates the field strength at a given power and distance to the aircraft.

The tool calculates the path loss based on line-of-sight (LOS) conditions and does not take into account multipath propagation on the ground.

In addition to the RF path, the tool calculates the radio horizon based on the given height of the aircraft and the ground station. If the calculated LOS is lower than the distance that can be achieved with the given radio conditions, this is indicated by a red dot on the LOS tab. In this case, the radio horizon is the limiting factor and not the RF link budget.

The line of sight is calculated in accordance with ICAO Annex 10 Vol. V.

The default for the antenna gain of 2.14 dBi corresponds to an omni directional antenna.

The default for the field strength of 75 uV/m corresponds to the ICAO recommendation for minimum reception at the aircraft antenna.

Quick start

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To start calculation, just select a row by touching it and change a specific value.

After touching the "Return" button, the dependent values are calculated automatically.

If any value other than distance is changed, the distance is recalculated. If distance is changed, the field strength is recalculated.

If you change a unit, the corresponding numerical values are converted. For example: 1 mW yields 0 dBm if the unit is changed from mW to dBm. Also conversion between feet and meters, and between nautical miles and kilometers is performed.

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航空RF链路的程序允许从地面站飞机的正向链路的快速计算。该工具基于地面站的RF功率，计算出的距离与一个给定的磁场强度，以实现在飞机天线或计算磁场强度在给定的功率和距离的飞机。

该工具计算基于路径损耗的行上的视线（LOS）的条件下，并没有考虑到在地面上的帐户的多径传播。

除了RF路径，该工具计算基于在给定的高度的飞机和地面站的无线电地平线。如果计算出的LOS为低于的距离，可以实现与在给定的无线电条件，这是表示由一个红点的LOS“选项卡上。在这种情况下，无线电地平线是限制因素，而不是RF链路预算。

根据国际民航组织附件10卷计算的视线中。五，

默认情况下的天线增益为2.14 dBi的对应定向天线。

默认为75微伏/米的电场强度相当于在飞机天线的最小接收了国际民航组织的建议。

快速入门

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开始计算，只需选择一行，通过触摸和改变一个特定的值。

触摸“返回”按钮后，相关的值自动计算。

如果任何距离以外的值被改变时，该距离被重新计算。如果距离改变时，磁场强度被重新计算。

如果你改变一个单位，相应的数值转换。例如：1兆瓦的产量为0 dBm，如果从毫瓦单位为dBm。之间的转换英尺和米之间，和海里公里。</div> <div class="show-more-end">