bferrer2000
Member
Hello,
I have an RV6 with appx 900 engine hours, based out of Colorado Air and Spaceport KCFO. My father built it in 2003 and I have been flying it regularly since 2014. In Fall 2020 I began my IFR training and began to rely on the Garmin GI106A VOR LOC GS GPS-CDI for approaches including VOR, ILS (Localizer and Glideslope), and GPS (input from GNS430). During my training I noticed the following two issues which I am trying to understand and fix.
First, when performing a VOR test at the ground facility at Centennial Airport, after tuning the VOR and centering the needle at 180, I expected to see the From flag and when centering the needle at 360 I expected to see the To flag. Strangely the flag did not give any indication, neither to or from flag.
When performing a VOR check from the air (at a different VOR) the CDI has given the expected to/from flag when tuned into the VOR.
The other issue I’ve experienced is when doing an ILS approach (specifically at KCFO ILS RWY 26). I have found the ILS signal to be sporadic based on the following observations. The Lateral flag appears while the needle reflects deviations as expected, although I do not know how accurate. Also, the
Vertical flag appears while the needle reflects what I believe are accurate glide slope deviations. It is my understanding that the appearance of these flags (a two headed arrow) indicates that no signal is being received.
As a side note, the GI106A behaves accurately when the CDI soft key is set as GPS. It is only when it is set at VOR when I’ve noticed these issues.
My CFII suggested that I inspect the connections between the GI106A and the antennae. I have called Garmin but have had a hard time reaching a knowledgeable resource via their phone support although I am planning to call again and see what help I can get.
However, I would like to know if any of you folks at Vans Airforce have run into this issue and have any ideas for me. Is there a connection issue, a mechanical issue with the instrument, or could it be user error?
Thank you
Bryan
I have an RV6 with appx 900 engine hours, based out of Colorado Air and Spaceport KCFO. My father built it in 2003 and I have been flying it regularly since 2014. In Fall 2020 I began my IFR training and began to rely on the Garmin GI106A VOR LOC GS GPS-CDI for approaches including VOR, ILS (Localizer and Glideslope), and GPS (input from GNS430). During my training I noticed the following two issues which I am trying to understand and fix.
First, when performing a VOR test at the ground facility at Centennial Airport, after tuning the VOR and centering the needle at 180, I expected to see the From flag and when centering the needle at 360 I expected to see the To flag. Strangely the flag did not give any indication, neither to or from flag.
When performing a VOR check from the air (at a different VOR) the CDI has given the expected to/from flag when tuned into the VOR.
The other issue I’ve experienced is when doing an ILS approach (specifically at KCFO ILS RWY 26). I have found the ILS signal to be sporadic based on the following observations. The Lateral flag appears while the needle reflects deviations as expected, although I do not know how accurate. Also, the
Vertical flag appears while the needle reflects what I believe are accurate glide slope deviations. It is my understanding that the appearance of these flags (a two headed arrow) indicates that no signal is being received.
As a side note, the GI106A behaves accurately when the CDI soft key is set as GPS. It is only when it is set at VOR when I’ve noticed these issues.
My CFII suggested that I inspect the connections between the GI106A and the antennae. I have called Garmin but have had a hard time reaching a knowledgeable resource via their phone support although I am planning to call again and see what help I can get.
However, I would like to know if any of you folks at Vans Airforce have run into this issue and have any ideas for me. Is there a connection issue, a mechanical issue with the instrument, or could it be user error?
Thank you
Bryan