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Dynamic list of radio frequencies while flying


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lve0200
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Tim Dawson - 12/17/2025 12:10:16 PM
SkyDemon issues frequency advice as part of an airspace warning, when we have a frequency attached to that piece of airspace.

We do not currently attach frequencies to French D/R/P areas because the AIP does not give a clear single frequency to those areas.

You make an interesting point that with some work, we could disregard the INFO services, look at the APP service, go through all our radio information for France to find the one with that callsign, and link the areas that way. It is unfortunate that AIP France does not give a simple frequency or at least an ICAO code for the unit providing the service, but there we are.

Hi, IMHO you can ignore D-zones for France, because other than in UK, for D-zones no special request/permission is needed. In F, they are for information only. Same applies for P-zones, There's nothing to communicate, you just have to stay out!

Edited 12/17/2025 1:32:37 PM by lve0200
Tim Dawson
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SkyDemon issues frequency advice as part of an airspace warning, when we have a frequency attached to that piece of airspace.

We do not currently attach frequencies to French D/R/P areas because the AIP does not give a clear single frequency to those areas.

You make an interesting point that with some work, we could disregard the INFO services, look at the APP service, go through all our radio information for France to find the one with that callsign, and link the areas that way. It is unfortunate that AIP France does not give a simple frequency or at least an ICAO code for the unit providing the service, but there we are.

lve0200
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Tim Dawson - 12/16/2025 11:21:05 AM
As pgroell said, the AIP is ambiguous at best. When the AIP doesn't give a clear frequency (or single unit) to call to enter airspace, how is SkyDemon supposed to do so?

OK, we are off-season and I haven't tried, yet. Next flight I will check the following. If I'm not mistaken, SD issues warnings like "xxx ahead/above, call yyy APP on ...."
1) I haven't tried yet, if tapping on the frequency shown in the warning does the trick to set the radio as a work around
2) Obviously for warnings, SD IS capable of determining the right service and frequency; so what's the problem to put'em into the radio tab? (for these, which are already identified in the Flight Details)
3) As in UK, the service of a zone has to be contacted at least 5 min before. Question remains, if the warnings popup does respect such timing requirements.
4)Last not least, what's the ambiguity? If there are 3 services named, that's no ambiguity! There is always only ONE APP service, responsible for the zone. This service might be off, because the zone is not actif. So FIS will know. If the zone lys across 2 FIS services, there are 2 FIS frequencies mentioned, depending from which service side you're coming. This is not a problem for SD, because it is already indicating the right FIS frequency of the zone, in which you're flying. So what left, is just putting the APP service freq into the Radio Tab.
BR
hk


Tim Dawson
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As pgroell said, the AIP is ambiguous at best. When the AIP doesn't give a clear frequency (or single unit) to call to enter airspace, how is SkyDemon supposed to do so?
lve0200
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pgroell - 12/4/2025 4:31:03 PM

Hello, 
I think that the difficulty Skydemon has is that in the french AIP there are no frequencies attached to most of the R and D zones. Ths AIP only shows where you can get informations about the zone.
See the pictures below for the R115 you are referring to, it says you can get information from AQUITAINE INFO, PYRENNEES INFO or MARSAN APP without specifying the frequency to be used !



Hi, frequencies are NOT attributed to zones. Zones are linked to approach services and their frequencies are known to SD.

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Hello, 
I think that the difficulty Skydemon has is that in the french AIP there are no frequencies attached to most of the R and D zones. Ths AIP only shows where you can get informations about the zone.
See the pictures below for the R115 you are referring to, it says you can get information from AQUITAINE INFO, PYRENNEES INFO or MARSAN APP without specifying the frequency to be used !



lve0200
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Tim Dawson - 12/3/2025 10:07:59 AM
The original query here concerned airfield-based frequencies where you already know what airfield you want the frequency for.

Is it not the case that in France, it's the FIS controlled who will know the status of the R zones? The Radio tab should permanently show the current FIS frequency (and the next one) and virtual radar should too.

I give you 2 examples, to make it clear: 
1) Leaving LFBS (southbound) you have to make contact to Cazeau LFBC APP for R31, when above 1000 ft. Usually it's not in the list.
2) Leaving LFBS (eastbound, you  have to make contact to LFBC 1st, as before, then you have a short leg w/ FIS (Aquitaine Info), but soon you'll arrive at R115 and you have to make contact w/ Marsan APP, which is usually also not on the list.
In most cases, when these zones are active (what FIS knows and tells you), FIS will ask you to contact the resp. APP Service and ask (negotiate) permission for transit. In F there a so many zones, stacked into and over each other, so that you cannot go around them w/out major inconveniences in most cases. So FIS will give you a frequ. and the name of the service, but when you're not familiar w/ the region, the name will most likely be not understandable (especially for foreigners like me). Knowing that you will have to penetrate the zone, a name and frequ. of the upcoming service in the Radio Tab would be very helpful. 
BR
hk

Tim Dawson
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The original query here concerned airfield-based frequencies where you already know what airfield you want the frequency for.

Is it not the case that in France, it's the FIS controlled who will know the status of the R zones? The Radio tab should permanently show the current FIS frequency (and the next one) and virtual radar should too.

lve0200
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Hi,
I would like to add my experience from France, where we have an awful lot of mil R-Zones. I frequently end up in the situation, where the resp. APP Radio freq, controlling this RZ is not in the list, because the "home APT" is not in the SD range for displaying the frequency in the list. Moreover, if you are not familiar w/ the region, you don't know, where the controller is located. If we cannot have the list w/ all APTs around, could we have all frequencies of special zones, listed in the Flight Details Tab?
RGDS
hk


Tim Dawson
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That is indeed how it worked before. It made the tab too long to navigate, because you'd still have to look for the one you wanted. Whereas when you're looking for a frequency for an airfield on the map, you already know where it is, and you just have to tap on it.
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