H-34 Choctaw/Avionics - Revision history

Tsukino.firethorn: /* DME */

2023-02-11T21:31:08Z

‎DME

Tsukino.firethorn: /* Audio Panel */

2021-09-15T12:34:56Z

‎Audio Panel

Kelly: /* COM Radios */

2021-09-15T03:23:12Z

‎COM Radios

Kelly: /* Nav Radios */

2021-09-15T02:57:35Z

‎Nav Radios

Kelly: /* Nav Radios */

2021-09-15T02:57:09Z

‎Nav Radios

Kelly: /* Nav Radios */

2021-09-15T02:56:14Z

‎Nav Radios

Kelly: /* COM Radios */

2021-09-15T02:55:04Z

‎COM Radios

Kelly: /* HF Radio */

2021-09-15T02:52:43Z

‎HF Radio

Kelly: /* COM Radios */

2021-09-15T02:44:26Z

‎COM Radios

Kelly: /* Radios */

2021-09-15T02:40:52Z

‎Radios

@@ Line 164: / Line 164: @@
 ]]
-A DEM (Distance Measuring Equipment) display (see <xr id='fig:dme'/>) is mounted on the pilot side of the main console.  This display shows the distance to the station entered in the NAV1 radio in 10ths of a kilometer.  If the frequency entered into the NAV radio is invalid or out of range, a 999 will be displayed in the DME.  The DME operates on the secondary DC bus.
+A DME (Distance Measuring Equipment) display (see <xr id='fig:dme'/>) is mounted on the pilot side of the main console.  This display shows the distance to the station entered in the NAV1 radio in 10ths of a kilometer.  If the frequency entered into the NAV radio is invalid or out of range, a 999 will be displayed in the DME.  The DME operates on the secondary DC bus.
 ==== RMI ====

@@ Line 17: / Line 17: @@
 The knob on the left-hand side of the unit, selects which radio will be used for transmitting.  Only one radio may be selected for transmit at a time.  To transmit on the selected radio use channel 3 by default.  For example
-  /3 White Star tower, Helicopter N58KS, 2km East at 400 feet, inbound landing with information Gamma.
+  /3 White Star tower, Helicopter N58KS, 2km East at 400 feet, inbound landing with information Golf.
 Might be the radio call to check in with the control tower at White Star airport.

← Older revision		Revision as of 03:23, 15 September 2021
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	would set the COM1 frequency to 128.125 MHz.		would set the COM1 frequency to 128.125 MHz.
		+
		+	Each airport in SL, has a specific set of frequencies associated with it that may be viewed by clicking on an airport icon on the [https://www.shergoodaviation.com/radar.php Shergood Aviation Map]. These frequencies are:
		+
		+	* CTAF/TWR - When an airport has an operating control tower, this frequency is used for communication with the control tower. When no control tower is in service, this frequency is the CTAF (Common Traffic Advisory Frequency). The CTAF is used to self-announce position relative to the airport
		+	* ATIS - Automatic Terminal Information Service - This frequency broadcasts weather and notam information about an airport.
		+	* Ground - This frequency is used for ground communication at an airport. Normally this frequency is used only when a control tower is in service. In other cases, the CTAF is used.
		+	* VOR - Frequency of the VOR navigation beacon at an airport. This frequency is used by the NAV radios.

	==== HF Radio ====		==== HF Radio ====

@@ Line 60: / Line 60: @@
 VOR navigation is based on radials. A radial is line of position from the station location, and radiating out on one of 360 directions.  Each of these lines of position is called a radial.  The radials correspond to the magnetic direction from the station with radial 0 corresponding to North, radial 90 to East, radial 180 to South and radial 270 to West.  <xr id='fig:vor-radials'/> shows an example of the radials around a station.  The aircraft at position (a) is on the 060 radial, the aircraft at position (b) is on the 090 radial, and the aircraft at position (c) is right of course for an inbound approach on radial 075.
-==== Nav Radios ====
+==== NAV Radios ====
 [[File:Vor-data.png|thumb|200px|

@@ Line 78: / Line 78: @@
   [10:06:15] SA - S58 v1.0 (N61KS): You hear ....  -...  --.  .-. (HBGR)
-with the Morse code for the station, and the station identifier.  Be sure you have enabled audio for the NAV radios on the audio panel (see ).
+with the Morse code for the station, and the station identifier.  Be sure you have enabled audio for the NAV radios on the [[H-34_Choctaw/Avionics#Audio_Panel|Audio Panel]].
 ==== Displaying Radials on the Map ====

@@ Line 23: / Line 23: @@
 ==== COM Radios ====
-The COM radios operate in the VHF band between 118.000 Mhz and 136.975 Mhz.  The selected frequency is shown in the middle of the radio.  The knob on the left controls the whole MHz value, and the knob on the right controls the fractions of a MHz in 0.05 Mhz increments.  A button labeled "+0.025" on the right hand side toggles an addition of 0.025 Mhz on the displayed frequency.
+The COM radios operate in the VHF band between 118.000 Mhz and 136.975 Mhz.  They are the preferred radios used for most communications.  COM radios have a maximum range of about 15 regions (3.75 km).  As a station approaches the maximum range, reception quality will begin to degrade.
-COM radios have a maximum range of about 15 regions (3.75 km).  As a station approaches the maximum range, reception quality will begin to degrade.
+The selected frequency is shown in the middle of the radio.  The knob on the left controls the whole MHz value, and the knob on the right controls the fractions of a MHz in 0.05 Mhz increments.  A button labeled "+0.025" on the right hand side toggles an addition of 0.025 Mhz on the displayed frequency.  In addition the chat commands "com1" and "com2" can be used to select a frequency.  For example:
 ==== HF Radio ====

@@ Line 32: / Line 32: @@
 <figure id="fig:hf-radio"><caption>HF Radio</caption></figure>]]
-Some text about radios here.
+The HF radio is tuned using four knobs on the panel.  Each knob controls a different part of the selected frequency.  In addition the "hf" chat command can be used to set a frequency.  For example:
 {| style="float: left"

← Older revision		Revision as of 02:44, 15 September 2021
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	The COM radios operate in the VHF band between 118.000 Mhz and 136.975 Mhz. The selected frequency is shown in the middle of the radio. The knob on the left controls the whole MHz value, and the knob on the right controls the fractions of a MHz in 0.05 Mhz increments. A button labeled "+0.025" on the right hand side toggles an addition of 0.025 Mhz on the displayed frequency.		The COM radios operate in the VHF band between 118.000 Mhz and 136.975 Mhz. The selected frequency is shown in the middle of the radio. The knob on the left controls the whole MHz value, and the knob on the right controls the fractions of a MHz in 0.05 Mhz increments. A button labeled "+0.025" on the right hand side toggles an addition of 0.025 Mhz on the displayed frequency.
		+
		+	COM radios have a maximum range of about 15 regions (3.75 km). As a station approaches the maximum range, reception quality will begin to degrade.

	==== HF Radio ====		==== HF Radio ====

@@ Line 9: / Line 9: @@
 === Radios ===
-The S-58 is equipped with a radio stack, consisting of an audio panel, two COM radios and two NAV radios (see <xr id='fig:radio-stack'/>).  The radio stack is located on forward part of the middle console between the pilot and copilot seats.  An additional HF radio (<xr id='fig:hf-radio'/>) is mounted on the front panel.  The audio panel, COM radios and hf radios are described in the following sections.  The NAV radios described in the section on VOR navigation.
+The S-58 is equipped with a radio stack, consisting of an audio panel, two COM radios and two NAV radios (see <xr id='fig:radio-stack'/>).  The radio stack is located on forward part of the middle console between the pilot and copilot seats.  An additional HF radio (<xr id='fig:hf-radio'/>) is mounted on the front panel.  The audio panel, COM radios and HF radios are described in the following sections.  The NAV radios described in the section on VOR navigation.  A UHF radio is also installed in the aircraft, but as of the publication of this manual the unit is inoperative.
 ==== Audio Panel ====
-The audio panel is the top-most unit in the radio stack.  It is used to select which radio sources will be heard over the aircraft loudspeakers, and which radio will be used for transmitting.  A row of switches select which radio sources are active for receiving.  You may select as many sources as you like among the available radios.
+The audio panel is the top-most unit in the radio stack.  It is used to select which radio sources will be heard over the aircraft loudspeakers, and which radio will be used for transmitting.  A row of switches select which radio sources are active for receiving.  You may select as many sources as you like among the available radios.  Received radio messages will be shown in local chat.
-The knob on the left-hand side of the unit, selects which radio will be used for transmitting.
+The knob on the left-hand side of the unit, selects which radio will be used for transmitting.  Only one radio may be selected for transmit at a time.  To transmit on the selected radio use channel 3 by default.  For example
 ==== COM Radios ====
 ==== HF Radio ====