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jrstone(at)insightbb.com
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 Posted: Tue Oct 09, 2007 6:20 am Post subject: The latest difficulties |
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HRII
Today during postflight I discovered a hole in the upper side of the air intake tube to the fuel servo. This thin fiberglass Y shaped tube was fiberglassed into the bottom cowl. The hole was caused by not enough clearance between the tube and the starter. I plan to make a small blister in the tube but can foresee some difficulty trying to sand that area on the inside of the tube. Anyone else have this problem?
The second problem is an ongoing one in which I would like to correct. When I transmit on either com radio, the sidetone is way too loud, not so much my voice but the noisy background of the engine at cruise power. On the ground it is fine, airborne it is terrible. My senhouser book may have mentioned an adjustment screw on the mic and I will check that tomorrow.
BTW, my sidetone adjustments in the Audio adjustment section are at the minimum level for the GNS-480. The SL-40 has an adjustment in the System setup.
Thanks for any and all help.
Jim Stone
Louisville
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stubiker(at)hotmail.com
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| Posted: Tue Oct 09, 2007 10:38 am Post subject: The latest difficulties |
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Hi Jim,
I can't help with the air intake problem, but I have dealt with the com problem before. The fast easy solution is what we call a "Mic Condom". It is a foam rubber cover for the microphone that David Clark sells. They are very inexpensive and only take a second to slip over the microphone of your headset. They also make one that has a little leather cover on it. Both work well. We were getting terrible cockpit noise in the radios in our helicopters until we installed these on the crew's mics. I hope this helps.
Stuart
HRII
Today during postflight I discovered a hole in the upper side of the air intake tube to the fuel servo. This thin fiberglass Y shaped tube was fiberglassed into the bottom cowl. The hole was caused by not enough clearance between the tube and the starter. I plan to make a small blister in the tube but can foresee some difficulty trying to sand that area on the inside of the tube. Anyone else have this problem?
The second problem is an ongoing one in which I would like to correct. When I transmit on either com radio, the sidetone is way too loud, not so much my voice but the noisy background of the engine at cruise power. On the ground it is fine, airborne it is terrible. My senhouser book may have mentioned an adjustment screw on the mic and I will check that tomorrow.
BTW, my sidetone adjustments in the Audio adjustment section are at the minimum level for the GNS-480. The SL-40 has an adjustment in the System setup.
Thanks for any and all help.
Jim Stone
Louisville
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CalBru(at)aol.com
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| Posted: Tue Oct 09, 2007 12:21 pm Post subject: The latest difficulties |
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Also, I think there is a sidetone adjustment on the intercom.
Cal
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