Navigation data functions for ATIS and other

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Keith Baxter
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Re: Navigation data functions for ATIS and other

#11 Post by Keith Baxter » Mon Jun 14, 2021 6:50 pm

Hi,

I see my LNM is a little out of date. I will update and check.
But LNM reports the latest AIRAC so also confused.


Keith
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Detlef
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Location: Bavaria

Re: Navigation data functions for ATIS and other

#12 Post by Detlef » Mon Jun 14, 2021 6:55 pm

Sorry for the split messages. But my X-Plane computer says also I have the Feb. cycle:
xp.PNG

Detlef
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Re: Navigation data functions for ATIS and other

#13 Post by Detlef » Thu Jul 01, 2021 10:46 am

Hi again,

in the Littlenavmap documentation it says that ATIS and COM frequencies are taken from the LNM database, not from Navigraph. Using the freeware DB browser for SQLite I can see that the Navigraph database has ATIS frequencies that do not work, in X-Plane at least.

I published my "Runway Finder" instrument on the beta testers section here. Using it I see funny frequencies from time to time. E.g. a VOR frequency tagged as ATIS, wrong ATIS frequencies and other.

I have AIRAC 2102 cycle currently. I would appreciate if someone with a current cycle can check, whether the data have changed. I see:

========= EGNV ===========

ATIS:
Airmanager: 132.37
Littlenavmap 132.38 (works in X-Plane)
Navigraph 2102: 132.37

=============== EGLL ==============

ATIS:
Airmanager: 113.75
Navigraph 2102: 113.750
Littlenavmap: 128.08 (sound ok)

================ EGWU ===================
I realize this is a RAF airbase (Northolt), but still 299.8 for ATIS sounds not quite right.
ATIS:
Airmanager: 299.8
Little Navmap from internal DB: 125.125 (sound works in X-Plane 11)
Navigraph 2102: 125.120

Thank you
Detlef

BW901
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Re: Navigation data functions for ATIS and other

#14 Post by BW901 » Thu Jul 01, 2021 12:06 pm

Hi Detlef, Northolt is military so they use both UHF and VHF. 299.8 is the UHF ATIS frequency, 125.125 the VHF frequency for civilian use. The UK Mil AIP is available online in case you wanted to review all comms.
Cheers
Jon

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Ralph
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Re: Navigation data functions for ATIS and other

#15 Post by Ralph » Thu Jul 01, 2021 12:54 pm

We're using an old database, so there will be discrepancy. Updating options will come later.

Detlef
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Re: Navigation data functions for ATIS and other

#16 Post by Detlef » Thu Jul 01, 2021 3:51 pm

Ralph wrote:
Thu Jul 01, 2021 12:54 pm
We're using an old database, so there will be discrepancy. Updating options will come later.
@Ralph,
I understand. I am looking forward to that.

Thanks
Detlef

Detlef
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Location: Bavaria

Re: Navigation data functions for ATIS and other

#17 Post by Detlef » Thu Jul 01, 2021 3:54 pm

BW901 wrote:
Thu Jul 01, 2021 12:06 pm
Hi Detlef, Northolt is military so they use both UHF and VHF. 299.8 is the UHF ATIS frequency, 125.125 the VHF frequency for civilian use. The UK Mil AIP is available online in case you wanted to review all comms.
Cheers
Jon
Hello Jon,
thank you! I was not aware of that. There is no way to tune in 299.8 in a radio I guess. The Saab 340B I am currently flying cannot do that. But looking farther I also found no dataref that would hold the digits after the decimal point.

Detlef

JackZ
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Re: Navigation data functions for ATIS and other

#18 Post by JackZ » Thu Jul 01, 2021 4:53 pm

UHF radios are quite uncommon in traditional airplanes, except for long range communications which is not the case of the SAAB.
They are more used in military airplanes.
125.12 will select the 125.125 frequency in the 8.33 mode.
My YouTube Chanel on the A320 (Real SOPs by an Airline Pilot IRL):
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Detlef
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Location: Bavaria

Re: Navigation data functions for ATIS and other

#19 Post by Detlef » Fri Jul 02, 2021 5:07 pm

JackZ wrote:
Thu Jul 01, 2021 4:53 pm
125.12 will select the 125.125 frequency in the 8.33 mode.
Hello Jacques,

thanks for the clarification. How do I activate that 8.33 mode? For example, I only hear the ATIS at EGPH Edinburgh, if I tune in 131.355, not when 131.35 is set.

Thank you
Detlef

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