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How to move CDI on g1000 in TBM?!

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My CDI does not move when turning it on the AP panel. I have VOR1 selected as source and the VOR is alive but the CDI needle wont turn. 

 

Also are there any keyboard mappings for it? I couldnt find it 

 

 

i9 11900K @ 5.3
RTX 3070TI 8GB
32 GB RAM @ 4200 GHZ
1 TB SSD
1080p G-Sync 27" Monitor

Look at the Baro/Course knob on the right side of the screen. There is an outer an inner knob.

Edited by driver101

Cheers Jan 
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  • Author
1 hour ago, driver101 said:

Look at the Baro/Course knob on the right side of the screen. There is an outer an inner knob.

it doesnt appear to work so I found the OBS binding and did it there instead. Works for now but I think its buggy. 

i9 11900K @ 5.3
RTX 3070TI 8GB
32 GB RAM @ 4200 GHZ
1 TB SSD
1080p G-Sync 27" Monitor

On 8/18/2020 at 9:56 AM, atlflyer said:

it doesnt appear to work so I found the OBS binding and did it there instead. Works for now but I think its buggy. 

Can you better explain what you did?  I have the same issue in the DA62.  Select LOC1 or LOC2 with the CDI key but rotating the CRS button does not change the radial.

Frank Patton
Corsair 5000D Airflow Case; MSI B650 Tomahawk MOB; Ryzen 7 7800 X3D CPU; ASUS RTX 4080 Super; 
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Former USAF meteorologist & ground weather school instructor. AOPA Member #07379126
                       
"I will never put my name on a product that does not have in it the best that is in me." - John Deere

47 minutes ago, fppilot said:

Can you better explain what you did?  I have the same issue in the DA62.  Select LOC1 or LOC2 with the CDI key but rotating the CRS button does not change the radial.

If, when setting up a flight on the world map planner, you choose a specific ILS approach for your destination airport, that ILS will be preloaded, as will the course setting of the runway. In this case, you cannot adjust the Nav receiver course. If you do a flight without creating a flight plan - specifying only a departure airport but not a destination, then the course knob will work.

Edited by JRBarrett

Jim Barrett

Licensed Airframe & Powerplant Mechanic, Avionics, Electrical & Air Data Systems Specialist. Qualified on: Falcon 900, CRJ-200, Dornier 328-100, Hawker 850XP and 1000, Lear 35, 45, 55 and 60, Gulfstream IV and 550, Embraer 135, Beech Premiere and 400A, MD-80.

11 minutes ago, JRBarrett said:

If, when setting up a flight on the world map planner, you choose a specific ILS approach for your destination airport, that ILS will be preloaded, as will the course setting of the runway. In this case, you cannot adjust the Nav receiver course. If you do a flight without creating a flight plan - specifying only a departure airport but not a destination, then the course knob will work.

Who thought that one up?  800 mile trip and the radial cannot be adjusted?

Edited by fppilot

Frank Patton
Corsair 5000D Airflow Case; MSI B650 Tomahawk MOB; Ryzen 7 7800 X3D CPU; ASUS RTX 4080 Super; 
NZXT 360mm liquid cooler; Corsair Vengeance 64GB DDR5 4800 MHz RAM; RMX850X Gold PSU;; ASUS VG289 4K 27" Display; Honeycomb Alpha & Bravo, Crosswind 3's w/dampener.  
Former USAF meteorologist & ground weather school instructor. AOPA Member #07379126
                       
"I will never put my name on a product that does not have in it the best that is in me." - John Deere

  • Author
1 hour ago, fppilot said:

Can you better explain what you did?  I have the same issue in the DA62.  Select LOC1 or LOC2 with the CDI key but rotating the CRS button does not change the radial.

Also note that if your nav radio is tuned to an ils frequency,  the Garmin automatically puts the cdi on track for the ils heading.

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VOR?  Just use GPS waypoints problem solved 🙂

 

SAR Pilot. Flight Sim'ing since the beginning.

Set correct NAV frequency and nav source. Hover mouse over center of CRS/BARO knob ( G1000). Scroll mouse wheel up and down to change course on you HSI.

Note: in CDI you rotate OBS heading :

6dhv3.jpg

in HSI your rotate course needle . You magnetic heading is saved to compass. G1000 is mimics HSI not CDI

 

a36_hsi_gif.gif?w=320

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2 hours ago, JRBarrett said:

If, when setting up a flight on the world map planner, you choose a specific ILS approach for your destination airport, that ILS will be preloaded, as will the course setting of the runway. In this case, you cannot adjust the Nav receiver course. If you do a flight without creating a flight plan - specifying only a departure airport but not a destination, then the course knob will work.

Can you just include the destination airport in the FP without picking the approach and have control over the Nav receiver course? In any case, why would the Nav receiver lock on an ILS approach course while still possibly hundreds of miles from the destination?

EDIT: To clarify, when I say "lock on an ILS approach course" above, I mean why would the Nav receiver course setting be locked to the ILS course setting while far from the destination? You should be able to use the Nav receiver to Navigate from VOR to VOR while enroute if you so chose to do so.

Al

Edited by ark

58 minutes ago, ark said:

In any case, why would the Nav receiver lock on an ILS approach course while still possibly hundreds of miles from the destination?

Agree; The receiver should not lock or even get the signal from a LOC, unless You are within signal range (usually < 20 nm out in SIM).

Edited by RamonB
Typo

Ramón.
Time, is the one thing no one can buy.
ovbe94a9nab0bbc6g.jpg

 

So, I tested the G1000 and it works as expected. If you tune a VOR frequency, the CRS can be adjusted. If you tune an ILS frequency and a signal is not being received and it is therefore not identified, you can slew the CRS (to no effect since there's no signal). If an ILS frequency is tuned and has been identified by the G1000, the CRS value has no effect because the CDI is automatically slewed to the correct inbound course published in the navdata. This worked whether I preloaded an ILS or not, and in fact on the G1000 in the C208, the ILS frequency wasn't auto populated for me.

So then I tested the G3000 in the TBM. First, even with an ILS approach selected in the flight planning page, the ILS frequency was not pre-loaded for me. With a VOR frequency tuned, but with no signal, I was able to slew the CRS no problem (SEA VOR). With an ILS frequency tuned but out of range (KTIW ILS 17), I was also able to slew the CRS with no effect. With a VOR frequency tuned, I was able to slew the CRS as expect to find a radial. Finally I tested an ILS that was within range, but no signal (I was on the ground at a nearby airport - at KBFI tuning ILS 16C for KSEA), I was not able to slew the course. Once I took off and climbed to a few hundred feet, the signal came in and the CDI was showing the proper inbound course.

So, I guess this all works basically as it should. I honestly haven't tried to select a CRS for an ILS before in my real airplane because it does it automatically, and the avionics know what an ILS frequency is and what a VOR frequency is because there's no overlap. In my real plane, the CRS has no effect with a LOC tuned, only with a VOR tuned. This seems to be the case in sim also.

For the interested, there's no overlap between VOR frequencies and ILS frequencies. Frequencies 112.00-117.95 are all VORs. Between 108.00 and 111.95 alternate, with odd starting decimals being used only for LOCs and even starting decimals only being VORs. That's how nav equipment knows whether you've tuned a VOR or ILS without even having a signal. So 108.00, 108,05, 108.20, 108.25, and so on are all VORs, while 108.10, 108.15, 108.30, 108.35 and so on are all LOCs.

The only other time we use the OBS/CRS setting is when setting a specific inbound or outbound course to a GPS fix, which is definitely not simulated in MSFS at this time. But in the real plane, you can tell the GPS (even an old GNS series) that you want to arrive at a waypoint on a specific course; we use this for manually setting up a hold entry and a few other rarely/never used activities. However, it can also be used in the GNS series to setup a virtual localizer for an airport with no instrument approaches. The GTN series will do this automatically with the Visual Approach function, but in the GNS series I have used this to get aligned on a long straight-in final, especially helpful if coming off an instrument flight plan into low(er) visibility conditions to an airport with no instrument approaches.

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12 hours ago, fppilot said:

Who thought that one up?  800 mile trip and the radial cannot be adjusted?

It won’t do that unless you have also tuned the ILS frequency in the nav receiver. If the receiver is being used to tune enroute VORS the course selector works. 

Jim Barrett

Licensed Airframe & Powerplant Mechanic, Avionics, Electrical & Air Data Systems Specialist. Qualified on: Falcon 900, CRJ-200, Dornier 328-100, Hawker 850XP and 1000, Lear 35, 45, 55 and 60, Gulfstream IV and 550, Embraer 135, Beech Premiere and 400A, MD-80.

11 hours ago, ark said:

Can you just include the destination airport in the FP without picking the approach and have control over the Nav receiver course? In any case, why would the Nav receiver lock on an ILS approach course while still possibly hundreds of miles from the destination?

EDIT: To clarify, when I say "lock on an ILS approach course" above, I mean why would the Nav receiver course setting be locked to the ILS course setting while far from the destination? You should be able to use the Nav receiver to Navigate from VOR to VOR while enroute if you so chose to do so.

Al

You can. The CDI does not become locked to an inbound ILS localizer course unless the NAV receiver is tuned to the ILS frequency. If the NAV receiver is tuned to a VOR frequency the CDI is still adjustable.

I don’t know if the automatic CDI lock is a feature of the real G-1000. If it is, it would only be available if a specific ILS approach was preloaded in the flight plan for a specific airport, in which case the localizer course would come from the nav database. The radiated ILS signal itself contains no information that would indicate what the inbound localizer course should be set to, unlike a VOR signal where the receiver can automatically determine which radial is currently being received at the aircraft’s location.

Edited by JRBarrett

Jim Barrett

Licensed Airframe & Powerplant Mechanic, Avionics, Electrical & Air Data Systems Specialist. Qualified on: Falcon 900, CRJ-200, Dornier 328-100, Hawker 850XP and 1000, Lear 35, 45, 55 and 60, Gulfstream IV and 550, Embraer 135, Beech Premiere and 400A, MD-80.

Great discussion.  Helpful in general. 

1 hour ago, JRBarrett said:

You can. The CDI does not become locked to an inbound ILS localizer course unless the NAV receiver is tuned to the ILS frequency. If the NAV receiver is tuned to a VOR frequency the CDI is still adjustable.

I don’t know if the automatic CDI lock is a feature of the real G-1000. If it is, it would only be available if a specific ILS approach was preloaded in the flight plan for a specific airport, in which case the localizer course would come from the nav database. The radiated ILS signal itself contains no information that would indicate what the inbound localizer course should be set to, unlike a VOR signal where the receiver can automatically determine which radial is currently being received at the aircraft’s location.


My consternation was that I had selected a departure airport and runway, and a destination airport and runway. However I do not recall the selection of that destination runway including an approach (any approach).  Much less picking up an ILS freq signal from 800 miles away.  So I had done nothing with any ILS frequency.  In fact nothing with any NA

V frequency.  If my NAV was tuned to an ILS frequency then that was totally coincidental.  Does the sim do any form of autotuning when a runway is selected (departure or destination)?

Frank Patton
Corsair 5000D Airflow Case; MSI B650 Tomahawk MOB; Ryzen 7 7800 X3D CPU; ASUS RTX 4080 Super; 
NZXT 360mm liquid cooler; Corsair Vengeance 64GB DDR5 4800 MHz RAM; RMX850X Gold PSU;; ASUS VG289 4K 27" Display; Honeycomb Alpha & Bravo, Crosswind 3's w/dampener.  
Former USAF meteorologist & ground weather school instructor. AOPA Member #07379126
                       
"I will never put my name on a product that does not have in it the best that is in me." - John Deere

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