Clark1961
Touchdown! Greaser!
- Joined
- Jun 7, 2008
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- 17,737
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Flew a bit yesterday. First time in a couple months. Landings were smooth and right on the thousand foot marks. After two landings and three take-offs I left the airport vicinity for a little airwork. As is my usual practice I set up the nav radios for the ILS on the way back to the airport. Lots of folks flying so eyes needed to be out of the cockpit. I quickly set the course on the Aspen without bothering to check it.
I set course to intercept the localizer on nav 1 then switched the Aspen to nav 2. It showed I should turn 90 degrees to intercept. Nav 2 also has a CDI and it agreed with what nav 1 had shown on the Aspen. I muttered under my breath that I haven't had a problem with nav 2. I did recheck the tuning and station id on nav 2. I should have rechecked the course setting on the Aspen but didn't. Nav 1 is a 430w and nav 2 is a SL-30.
I rechecked the setup today and found that I had set the course wrong by 180 degrees on the Aspen. That setting caused the apparent reverse sensing on nav 2. The 430w handled it without a problem. Somewhere an avionics tech and/or designer is laughing at me I'm sure.
So I thought I'd share this story so other folks using an Aspen may be aware of this little bit of unfortunate display behavior which may occur if the nut behind the yoke is 180 degrees off.
I set course to intercept the localizer on nav 1 then switched the Aspen to nav 2. It showed I should turn 90 degrees to intercept. Nav 2 also has a CDI and it agreed with what nav 1 had shown on the Aspen. I muttered under my breath that I haven't had a problem with nav 2. I did recheck the tuning and station id on nav 2. I should have rechecked the course setting on the Aspen but didn't. Nav 1 is a 430w and nav 2 is a SL-30.
I rechecked the setup today and found that I had set the course wrong by 180 degrees on the Aspen. That setting caused the apparent reverse sensing on nav 2. The 430w handled it without a problem. Somewhere an avionics tech and/or designer is laughing at me I'm sure.
So I thought I'd share this story so other folks using an Aspen may be aware of this little bit of unfortunate display behavior which may occur if the nut behind the yoke is 180 degrees off.