Setting ADF (C#)

[Thomas0702]

Hi,

has anybody managed to set a ADF frequency with a fractional, e.g. 365.5 kHz?

TransmitClientEvent(..., 0x365, ...) works fine, but sending 0x3655 just produces rubbish in the ADF gauge.

Do I really have to adjust the 10th-digit sending multiple EVENT_ADF_INC messages?

enum EVENTS
{
   EVENT_ADF_SET
};

// this enum is missing in the SimConnect namespace (?!?)
enum GROUP_PRIORITIES :uint
{
    SIMCONNECT_GROUP_PRIORITY_HIGHEST = 1,
    SIMCONNECT_GROUP_PRIORITY_HIGHEST_MASKABLE = 10000000,
    SIMCONNECT_GROUP_PRIORITY_STANDARD = 1900000000,
    SIMCONNECT_GROUP_PRIORITY_DEFAULT = 2000000000,
    SIMCONNECT_GROUP_PRIORITY_LOWEST = 4000000000
}

...

simconnect.MapClientEventToSimEvent(EVENTS.EVENT_ADF_SET, "ADF_SET");

...

simconnect.TransmitClientEvent(SimConnect.SIMCONNECT_OBJECT_ID_USER,
    EVENTS.EVENT_ADF_SET,
    0x365,  // <- ok, but 0x3655 does not work
    GROUP_PRIORITIES.SIMCONNECT_GROUP_PRIORITY_HIGHEST,
    SIMCONNECT_EVENT_FLAG.GROUPID_IS_PRIORITY);

 

[ronh]

Have you tried using ADF_COMPLETE_SET rather than ADF_SET.

also use BCD32 so set freq to 0x00003655 or perhaps 0x36550000

 

[Thomas0702]

Have you tried using ADF_COMPLETE_SET rather than ADF_SET.

also use BCD32 so set freq to 0x00003655 or perhaps 0x36550000

Thanks for the suggestions, Ron.

Unfortunately, none of those works. I guess the 4 digits (BCD16) are used for the freqency and so no room is left for the fractional. ADF_COMPLETE_SET has no effect at all.

I think I found another strange behaviour: If you set the ADF to a 4-digit value (e.g. 0x1234), the gauge shows 1234.0 - fine. But when you try to set a 3-digit value later on (e.g. 0x555), the first digit of the gauge remains '1' and the gauge shows 1555.0. Ok, I know 4-digit NDB frequencies are not existing in FSX, but nevertheless it's a bug.

And to add even more pain: In the Airbus gauge, ADF_SET sets the standby ADF, and there's no event to swap ADF frequencies.

Some work to do for the next SDK version

 

[ronh]

That is strange. There is a thread on this forum that talks about ADF_COMPLETE_SET working.

Maybe the number is not correct. Try 0x03655000.

See thread "Setting ADF Frequency" in the Similar Threads section below.

The SDK talks about the ADF freq being an BCD32 value on return from ADF ACTIVE FREQUENCY:index.

Also ADF2_COMPLETE_SET should set the second ADF.

 

[Thomas0702]

That's the trick!

As Pete Dowson writes in that thread, one has to use ADF_COMPLETE_SET and 1234.5 is provided as 0x12345000.

If only the documentation was better...

Anyway, thanks a lot, Ron & Peter!