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  #1  
Old 10-12-2014, 12:05 PM
hlangebro's Avatar
hlangebro hlangebro is offline
 
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Location: San Diego, CA
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Default dedicated glideslope antenna

I have the Archer VOR antenna in the right wingtip. It works ok for VOR and LOC, but very intermittent on glideslope, no matter how many changes and improvements I have made. Part of the issue is probably the HID light and strobes etc.
Anyway, I was thinking about installing a dedicated glideslope antenna. I found this internal antenna and would like to know if anyone has used it?

http://www.chiefaircraft.com/ci-193.html

Here are some pics of where I was thinking about installing it; upper canopy area or lower canopy area:

http://www.mykitlog.com/users/displa...g=198301&row=1

I have the SL-30, and according to the manual you can use a splitter, not diplexer, for the split input signal.

Any input/ideas?
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RV-7A, slider
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http://www.mykitlog.com/hlangebro/
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  #2  
Old 10-12-2014, 01:11 PM
jarvis jarvis is offline
 
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Default Do a search...

Several have simply stripped a piece on coax (I believe) and run it under a gear leg fairing. If my feeble memory serves me correctly, I believe Paul Dye (Ironflight) wrote it up one time.
Save yourself 200 bucks.
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  #3  
Old 10-12-2014, 02:45 PM
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Ironflight Ironflight is offline
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Quote:
Originally Posted by jarvis View Post
Several have simply stripped a piece on coax (I believe) and run it under a gear leg fairing. If my feeble memory serves me correctly, I believe Paul Dye (Ironflight) wrote it up one time.
Save yourself 200 bucks.
Yup - we have an antenna like this on both our RV-8 and the RV-3 - both work great!
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  #4  
Old 10-12-2014, 03:08 PM
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We have a piece of stripped coax in a wingtip of our -9 that has always flown the GS perfectly . I'm exceptionally happy with it, and we use it often.
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  #5  
Old 10-12-2014, 03:17 PM
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hlangebro hlangebro is offline
 
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Default antenna

Ok..... Can any of you provide me with a link so I can see exactly what you have done? I don't think the location in the wingtip will work, since I have issues with the lighting as it is....but nevertheless, I would like to se how you did yours
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H?kan Langebro
San Diego, CA

RV-7A, slider
Lycoming O-320 D1A, 160hp C/S
First flight 6-11-13

Re-engineering a Lancair 320..!


http://www.youtube.com/watch?v=AJuQ68tccTQ
http://www.mykitlog.com/hlangebro/
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  #6  
Old 10-12-2014, 03:52 PM
Tom Martin Tom Martin is offline
 
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I took Paul's idea but placed the coax antennae in the front of my right gear leg faring. Always has worked well
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  #7  
Old 10-12-2014, 04:38 PM
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scard scard is offline
 
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Quote:
Originally Posted by hlangebro View Post
Ok..... Can any of you provide me with a link so I can see exactly what you have done? I don't think the location in the wingtip will work, since I have issues with the lighting as it is....but nevertheless, I would like to se how you did yours
Just search "Glide Slope Antenna" here. We hashed this out back in 2009.
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  #8  
Old 10-12-2014, 05:01 PM
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hlangebro hlangebro is offline
 
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Location: San Diego, CA
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I found some, however, if I wanted to go with the antenna I listed in the first post, where would be the best location??
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H?kan Langebro
San Diego, CA

RV-7A, slider
Lycoming O-320 D1A, 160hp C/S
First flight 6-11-13

Re-engineering a Lancair 320..!


http://www.youtube.com/watch?v=AJuQ68tccTQ
http://www.mykitlog.com/hlangebro/
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  #9  
Old 10-12-2014, 10:51 PM
BobTurner BobTurner is online now
 
Join Date: Dec 2011
Location: Livermore, CA
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Quote:
Originally Posted by hlangebro View Post
I have the Archer VOR antenna in the right wingtip. It works ok for VOR and LOC, but very intermittent on glideslope, no matter how many changes and improvements I have made. Part of the issue is probably the HID light and strobes etc.
?
1. Did you try turning the HID and strobes off, and/or re-routing their wires?
2. Have you checked out the SL30's glide slope? I have never heard of anyone else having a similar issue with an Archer.
3. I have seen a few other installations with "changes and improvements". They usually make things worse.
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  #10  
Old 10-12-2014, 11:00 PM
BobTurner BobTurner is online now
 
Join Date: Dec 2011
Location: Livermore, CA
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Just strip a coax to make a half wave dipole (45 cm total length, 22.5 cm each leg), tape it horizontally near the top of your windscreen, plug it into the SL30 and see if the GS works. If it does not, then the issue is inside the radio.
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