How to get the radial and bearing for VOR1?

[lordofwings]

In my application I need to know these three things I haven't quite figured out.... Precondition being that the NAV1 radio is tuned to a VOR station and the a/c is within the signal reach of the VOR.

 

1. How do I obtain the radial of that station the a/c is currently in? 

 

2. How to I calculate the bearing TO the VOR station based on the current position?

 

3. How do I know the radial FROM the VOR station the a/c is currently in?

[Paul Henty]

In my application I need to know these three things I haven't quite figured out.... Precondition being that the NAV1 radio is tuned to a VOR station and the a/c is within the signal reach of the VOR.

 

1. How do I obtain the radial of that station the a/c is currently in? 

 

2. How to I calculate the bearing TO the VOR station based on the current position?

 

3. How do I know the radial FROM the VOR station the a/c is currently in?

 

A brief search of the Offset Status pdf turned up the following offsets:

 

1. 0C50

2. 0C56

3. Isn't this the same as 1?

 

For your prerequisites the ID of the currently tuned VOR can be read from offset 3000.  I'm pretty sure this will need the pilot to be in range for this to appear.  Otherwise you can check the distance  with offset 0300.  

 

All these offsets are for NAV1 but there are also equivalents for NAV2.

 

Paul

[lordofwings]

Please disregard, just figured it out.... The Radial offset gives me the proper radial, to get the "bearing" I simply have to get the reciprocal. The value on the "relative bearing" offset plus the current heading modulo 360 would actually give the radial TO.