Difference between revisions of "H-34 Choctaw/Avionics"
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==== Nav Radios ==== | ==== Nav Radios ==== | ||
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| + | Each VOR station has an associated frequency between 108.0 and 117.95 MHz that is used to select it. The frequency for the VOR at a particular airport can be found on the [https://www.shergoodaviation.com/radar.php Shergood Airport Map] by clicking on the airport symbol to bring up the data box for that airport. The S-58 is equipped with two NAV radios (see <xr id='fig:nav-radio'/>) on the lower panel that can be used for VOR-based navigation. The top radio is NAV1 and the bottom radio is NAV2. To enter the frequency for a radio, you can touch the frequency adjustment knobs, or use a chat command. For example, to set the frequency for NAV1 to 117.30, you can use the chat command: | ||
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| + | nav nav1 117.30 | ||
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| + | VOR stations have limited range, typically about 12 SL regions, and stations that are greater than 30 sims apart can share the same frequency. For this reason, it is important that you identify the station that you have selected. Press the IDENT button on the NAV radio to identify the station that is selected. This will produce a chat message of the form: | ||
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| + | [10:06:15] SA - S58 v1.0 (N61KS): You hear .... -... --. .-. (HBGR) | ||
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| + | with the Morse code for the station, and the station identifier. | ||
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==== CDI ==== | ==== CDI ==== | ||
=== Transponder === | === Transponder === | ||
Revision as of 02:27, 8 July 2021
SECTION 3. AVIONICS
1.1 Introduction
The S-58 supports VOR (Very High Frequency Omni-Directional Range) navigation. VOR navigation is a ground-based navigation system in which a VOR station transmits a signal that is picked up by a NAV radio (see Figure 1) in the aircraft. The VOR transmits two types of signals, an omni-directional pulse, and a rotating directional pulse. The omni-directional pulse is synchronized to occur when the directional pulse is at magnetic north. By measuring the time between the two pulses, the receiver can determine its relative direction, called a radial, from the VOR station. For SL purposes, a virtual VOR station is "placed" at every airport in the[Shergood Airport Map at the location of the airport marker on the map. See Wikipedia: VOR Omnidirectional range for more details on VOR operation.
Each VOR station has an associated frequency between 108.0 and 117.95 MHz that is used to select it. The frequency for the VOR at a particular airport can be found on the Shergood Airport Map by clicking on the airport symbol to bring up the data box for that airport. The S-58 is equipped with two NAV radios (see Figure 1) on the lower panel that can be used for VOR-based navigation. The top radio is NAV1 and the bottom radio is NAV2. To enter the frequency for a radio, you can touch the frequency adjustment knobs, or use a chat command. For example, to set the frequency for NAV1 to 117.30, you can use the chat command:
nav nav1 117.30
VOR stations have limited range, typically about 12 SL regions, and stations that are greater than 30 sims apart can share the same frequency. For this reason, it is important that you identify the station that you have selected. Press the IDENT button on the NAV radio to identify the station that is selected. This will produce a chat message of the form:
[10:06:15] SA - S58 v1.0 (N61KS): You hear .... -... --. .-. (HBGR)
with the Morse code for the station, and the station identifier.
