that may be as good as it gets.   not much you can do about the engine except get a sightline around it somehow.

putting it in a glass wingtip seems to work.

using a commercial whisker on the top of the vstab also works.    It's aesthetically very unpleasing but I think it's down in the 1mph penalty area.

On May 15, 2011, at 8:04 AM, Christian Meier wrote:

>
>> Hi
>> I'm having trouble with my Nav antenna in my 360 airframe.
>> It is mounted above the rear bulkhead as seen in the picture.
>> Reception works fine over 100NM except exactly forward and rearwards (357°- to 3° and about 177° to 183°)I guess it is shielded by the engine and carbon horizontal.
>> First I installed the Bob Archer antenna long wards from front to rear, then I lowered the aluminum strips downwards. Now it works a little better.
>> To the sides I have perfect reception.
>> I really don't want to install an antenna on the outside of the plane, but it would be my last chance to get a good reception.
>> Thank you for your help,
>>
>> Christian
>>
>> P.S.
>> There is an additional bulkhead in the back which is not in the plans to stiffen the tail.
>>
>>
> <IMG_1873.jpeg>
>>
>>
> <IMG_1875.jpeg>
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