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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?=)
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| Subject: | Please Make A Contribution To Support Your Lists |
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| Subject: | Radio Tx poorly on ground, but good in the air |
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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| 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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