NDB frequencies - no digit after decimal point??

[bpcw0001]

Hi,

the accepted NDB frequencies, dialed in via FMS as well as via the radio controls on the CCP, seem to be without digits after the decimal point.

While I can dial in e. g. 307.5, it will always snap back to 307.0

Is this intended? There are still NDBs around that require this, e. g. the "PA" NDB on the ILS 24R approach in LEPA, which is on frequency 307.5, so not every NDB is "XXX.0".

Or am I missing something?

 

Both FMS and Radio section on the MFDs show a digit after the decimal point for NDB frequencies, but it will always be 0.

Edited September 8, 2023 by bpcw0001

[Pils]

X-Plane only supports whole integer frequencies for ADFs, hence I assume that limitation is enforced by the avionics so as to now give a false impression. Therefore the navigation aid data provided to be used by X-Plane forces the PA NDB, in this example, to 307 kHz. I assume the rounding down is consistent for other NDBs, but I haven't verified that. You could report this frequency limitation to Laminar as a "bug" in X-Plane, to be honest. (They are quite US-centric so might not realize it's an issue.)

[bpcw0001]

14 hours ago, Pils said:

X-Plane only supports whole integer frequencies for ADFs, hence I assume that limitation is enforced by the avionics so as to now give a false impression. Therefore the navigation aid data provided to be used by X-Plane forces the PA NDB, in this example, to 307 kHz. I assume the rounding down is consistent for other NDBs, but I haven't verified that. You could report this frequency limitation to Laminar as a "bug" in X-Plane, to be honest. (They are quite US-centric so might not realize it's an issue.)

Oh, ok. I didn't know that X-Plane itself is limiting here. No big deal though, particulary as X-Plane "forces" the NDB to 307.0 so that it can be received nonetheless.
Quite unlikely that we'll encounter two nearby NDBs with frequencies only differing in the decimal region so that this truncation would become an issue, even more so with the ongoing discontinuation of NDB stations in many parts of the world.

Still, If I ever find time, I'll let the X-Plane guys know.

Thanks.

Edited September 9, 2023 by bpcw0001

[bpcw0001]

14 hours ago, Pils said:

They are quite US-centric

So I observed already. I understand they're a small team, but nonetheless. Lots of non-US X-Plane pilots around, they should definitely broaden their view a little.