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10-12-2014, 12:05 PM
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Join Date: Mar 2012
Location: San Diego, CA
Posts: 133
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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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10-12-2014, 01:11 PM
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Join Date: Jul 2005
Location: lexington, KY
Posts: 330
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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.
__________________
Thanks,
Jarvis
Purchased flying RV-7A 
RV-7A emp finished, wings next.
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10-12-2014, 02:45 PM
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VAF Moderator / Line Boy
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Join Date: Jan 2005
Location: Dayton, NV
Posts: 12,256
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Quote:
Originally Posted by jarvis
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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Yup - we have an antenna like this on both our RV-8 and the RV-3 - both work great!
__________________
Paul F. Dye
Editor at Large - KITPLANES Magazine
RV-8 - N188PD - "Valkyrie"
RV-6 (By Marriage) - N164MS - "Mikey"
RV-3B - N13PL - "Tsamsiyu"
A&P, EAA Tech Counselor/Flight Advisor
Dayton Valley Airpark (A34)
http://Ironflight.com
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10-12-2014, 03:08 PM
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Join Date: Jun 2005
Location: Cedar Park, TX
Posts: 3,156
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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.
__________________
Scott Card
CQ Headset by Card Machine Works
CMW E-Lift
RV-9A N4822C flying 2200+hrs. / Cedar Park, TX
RV8 Building - fuselage / showplanes canopy (Done!)
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10-12-2014, 03:17 PM
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Join Date: Mar 2012
Location: San Diego, CA
Posts: 133
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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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10-12-2014, 03:52 PM
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Join Date: Jan 2005
Location: Ontario, Canada
Posts: 1,544
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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
__________________
Tom Martin RV1 pilot 4.6hours!
CPL & IFR rated
EVO F1 Rocket 1000 hours,
2010 SARL Rocket 100 race, average speed of 238.6 knots/274.6mph
RV4, RV7, RV10, two HRIIs and five F1 Rockets
RV14 Tail dragger
Fairlea Field
St.Thomas, Ontario Canada, CYQS
fairleafield@gmail.com
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10-12-2014, 04:38 PM
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Join Date: Jun 2005
Location: Cedar Park, TX
Posts: 3,156
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Quote:
Originally Posted by hlangebro
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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Just search "Glide Slope Antenna" here. We hashed this out back in 2009.
__________________
Scott Card
CQ Headset by Card Machine Works
CMW E-Lift
RV-9A N4822C flying 2200+hrs. / Cedar Park, TX
RV8 Building - fuselage / showplanes canopy (Done!)
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10-12-2014, 05:01 PM
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Join Date: Mar 2012
Location: San Diego, CA
Posts: 133
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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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10-12-2014, 10:51 PM
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Join Date: Dec 2011
Location: Livermore, CA
Posts: 6,797
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Quote:
Originally Posted by hlangebro
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.
?
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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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10-12-2014, 11:00 PM
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Join Date: Dec 2011
Location: Livermore, CA
Posts: 6,797
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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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