Aerobatic-List Digest Archive

Mon 11/03/14


Total Messages Posted: 3



Today's Message Index:
----------------------
 
     0. 12:10 AM - Please Make A Contribution To Support Your Lists (Matt Dralle)
     1. 04:03 AM - Radio Tx poorly on ground, but good in the air (DaveG601XL)
     2. 04:37 AM - Re: Radio Tx poorly on ground, but good in the air (=?iso-8859-1?Q?Georg_Isenb=FCrger?=)
 
 
 


Message 0


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    Time: 12:10:34 AM PST US
    From: Matt Dralle <dralle@matronics.com>
    Subject: Please Make A Contribution To Support Your Lists
    Dear Listers, There is no advertising income to support the Matronics Email Lists and Forums. The operation is supported 100% by your personal Contributions during the November Fund Raiser. Please make your Contribution today to support the continued operation and upgrade of these services. You can pick up a really nice gift for making your Contribution too! You may use a Credit Card or Paypal at the Matronics Contribution Site here: http://www.matronics.com/contribution or, you can send a personal check to the following address: Matronics / Matt Dralle 581 Jeannie Way Livermore, CA 94550 Thank you in advance for your generous support! Matt Dralle Matronics Email List and Forum Administrator


    Message 1


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    Time: 04:03:00 AM PST US
    Subject: Radio Tx poorly on ground, but good in the air
    From: "DaveG601XL" <david.m.gallagher@ge.com>
    I have a gremlin that I don't know how to troubleshoot. I have a 601XL all-metal airplane with an Icom A-200 radio, a RAMI com antenna mounted on the top skin and connected with RG-400 cable. I did all the installation myself. I have had this flying for 6 years now. It transmits just fine in the air. When I initially installed it, I would get comments that it was a bit garbled while transmitting on the ground. But it was always good enough to be able to operate out of tower controlled airports from time to time. Receiving wise, I hear just fine whether on the ground or in the air. Just this summer, I started to get comments from fellow pilots that I was totally unreadable while transmitting on the ground. It would become crystal clear as soon as I took off. Does anyone have any thoughts of why this could be occurring or any place in particular I should start my troubleshooting?? Thanks, -------- David Gallagher Zodiac 601 XL-B: flying, 280+ hours now Next project under construction: Finish my father's Aircamper Read this topic online here: http://forums.matronics.com/viewtopic.php?p=432801#432801


    Message 2


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    Time: 04:37:41 AM PST US
    Subject: Re: Radio Tx poorly on ground, but good in the air
    From: =?iso-8859-1?Q?Georg_Isenb=FCrger?= <gi@av8r.de>
    David, is the antenna grounded at the base (contact to the fuselage / metal on metal). It sounds to me like a grounding problem... Maybe there is corrosion around the base of the antenna. Regards Georg Am 03.11.2014 um 13:01 schrieb DaveG601XL <david.m.gallagher@ge.com>: I have a gremlin that I don't know how to troubleshoot. I have a 601XL all-metal airplane with an Icom A-200 radio, a RAMI com antenna mounted on the top skin and connected with RG-400 cable. I did all the installation myself. I have had this flying for 6 years now. It transmits just fine in the air. When I initially installed it, I would get comments that it was a bit garbled while transmitting on the ground. But it was always good enough to be able to operate out of tower controlled airports from time to time. Receiving wise, I hear just fine whether on the ground or in the air. Just this summer, I started to get comments from fellow pilots that I was totally unreadable while transmitting on the ground. It would become crystal clear as soon as I took off. Does anyone have any thoughts of why this could be occurring or any place in particular I should start my troubleshooting?? Thanks, -------- David Gallagher Zodiac 601 XL-B: flying, 280+ hours now Next project under construction: Finish my father's Aircamper Read this topic online here: http://forums.matronics.com/viewtopic.php?p=432801#432801




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