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Well here we go again.
I will not quit until I get this right.
Needing a good base line I decided to assemble the original Astroplane and take good baseline readings from that. I assembled the antenna following the instructions exactly.
The coax used is a half wavelength LMR 400 VF=.85 as measured with the MFJ 259B antenna analyzer. The MFJ instructions recommend a coax length in multiples of ¼ wavelength The coax was made to a length of 30’ 9” so it should be close to 27.205.
The coax runs down the mast centered between the down leg elements.
The mast is approximately 19’ in length and the nonmetallic guy are attached about 49” below the loop. There is about 112” of mast between the loop and the top of a 3’ tripod.
The whole assembly sits on top of the garage roof in as much free air as possible.
The results are as follows:

<blockquote data-quote="Starduster" data-source="post: 208561" data-attributes="member: 6264">Well here we go again. I will not quit until I get this right.Needing a good base line I decided to assemble the original Astroplane and take good baseline readings from that. I assembled the antenna following the instructions exactly. The coax used is a half wavelength LMR 400 VF=.85 as measured with the MFJ 259B antenna analyzer. The MFJ instructions recommend a coax length in multiples of ¼ wavelength The coax was made to a length of 30’ 9” so it should be close to 27.205.The coax runs down the mast centered between the down leg elements.The mast is approximately 19’ in length and the nonmetallic guy are attached about 49” below the loop. There is about 112” of mast between the loop and the top of a 3’ tripod. The whole assembly sits on top of the garage roof in as much free air as possible.The results are as follows:</blockquote>

[QUOTE="Starduster, post: 208561, member: 6264"] [FONT=Arial]Well here we go again. [/FONT] [FONT=Arial]I will not quit until I get this right.[/FONT] [FONT=Arial]Needing a good base line I decided to assemble the original Astroplane and take good baseline readings from that. I assembled the antenna following the instructions exactly. [/FONT] [FONT=Arial]The coax used is a half wavelength LMR 400 VF=.85 as measured with the MFJ 259B antenna analyzer. The MFJ instructions recommend a coax length in multiples of ¼ wavelength The coax was made to a length of 30’ 9” so it should be close to 27.205.[/FONT] [FONT=Arial]The coax runs down the mast centered between the down leg elements.[/FONT] [FONT=Arial]The mast is approximately 19’ in length and the nonmetallic guy are attached about 49” below the loop. There is about 112” of mast between the loop and the top of a 3’ tripod. [/FONT] [FONT=Arial]The whole assembly sits on top of the garage roof in as much free air as possible.[/FONT] [FONT=Arial]The results are as follows:[/FONT] [/QUOTE]

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