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Yes again it was a typo the length is 30’ 9”. I don’t quite understand it but blaming old age will have to do. Normally I am good with accuracy but now days I just can’t seem to get it straight. Oh well on with life.
When I started doing the measurements in earlier post I was basing them on set frequencies and then recording the X, R, Z & SWR. However this was time consuming as many times the values would not change with the next few frequency steps. Also it is not the easiest thing to tune an MFJ analyzer to get the exact frequency that I wanted let alone good repeatability. So as long as I was starting over I decided that I could cut the task by starting at the lowest SWR reading and then tuning to the next jump up in SWR , i.e. 1.1 to 1.2 then record the frequency. I did this both increasing and decreasing the frequency from the lowest SWR reading. The MFJ 259B is just not accurate or user friendly enough to split this down any further. The SWR resolution is only down to the first decimal place (1/10s).
The other day when I was using it the meter started going crazy. This was tracked down to a poor solder connection inside the meter from the 239 connector to the PCB. I now know what people mean about MFJ stuff. But from the reviews I thought that the Analyzers were better than most of their other stuff.
Anyway here are the photos of the NOS Avanti Astroplane main bracket. I was also interested in the Top One to see what they had going so I ordered one. When it came it was the new version with a gamma match. Not even close to the Avanti original so I sold it after taking some photos and measurements.

<blockquote data-quote="Starduster" data-source="post: 208794" data-attributes="member: 6264">Yes again it was a typo the length is 30’ 9”. I don’t quite understand it but blaming old age will have to do. Normally I am good with accuracy but now days I just can’t seem to get it straight. Oh well on with life. When I started doing the measurements in earlier post I was basing them on set frequencies and then recording the X, R, Z &amp; SWR. However this was time consuming as many times the values would not change with the next few frequency steps. Also it is not the easiest thing to tune an MFJ analyzer to get the exact frequency that I wanted let alone good repeatability. So as long as I was starting over I decided that I could cut the task by starting at the lowest SWR reading and then tuning to the next jump up in SWR , i.e. 1.1 to 1.2 then record the frequency. I did this both increasing and decreasing the frequency from the lowest SWR reading. The MFJ 259B is just not accurate or user friendly enough to split this down any further. The SWR resolution is only down to the first decimal place (1/10s). The other day when I was using it the meter started going crazy. This was tracked down to a poor solder connection inside the meter from the 239 connector to the PCB. I now know what people mean about MFJ stuff. But from the reviews I thought that the Analyzers were better than most of their other stuff.Anyway here are the photos of the NOS Avanti Astroplane main bracket. I was also interested in the Top One to see what they had going so I ordered one. When it came it was the new version with a gamma match. Not even close to the Avanti original so I sold it after taking some photos and measurements.</blockquote>

[QUOTE="Starduster, post: 208794, member: 6264"] [FONT=Arial]Yes again it was a typo the length is 30’ 9”. I don’t quite understand it but blaming old age will have to do. Normally I am good with accuracy but now days I just can’t seem to get it straight. Oh well on with life. [/FONT] [FONT=Arial]When I started doing the measurements in earlier post I was basing them on set frequencies and then recording the X, R, Z & SWR. However this was time consuming as many times the values would not change with the next few frequency steps. Also it is not the easiest thing to tune an MFJ analyzer to get the exact frequency that I wanted let alone good repeatability. So as long as I was starting over I decided that I could cut the task by starting at the lowest SWR reading and then tuning to the next jump up in SWR , i.e. 1.1 to 1.2 then record the frequency. I did this both increasing and decreasing the frequency from the lowest SWR reading. The MFJ 259B is just not accurate or user friendly enough to split this down any further. The SWR resolution is only down to the first decimal place (1/10s). [/FONT] [FONT=Arial]The other day when I was using it the meter started going crazy. This was tracked down to a poor solder connection inside the meter from the 239 connector to the PCB. I now know what people mean about MFJ stuff. But from the reviews I thought that the Analyzers were better than most of their other stuff.[/FONT] [FONT=Arial]Anyway here are the photos of the NOS Avanti Astroplane main bracket. I was also interested in the Top One to see what they had going so I ordered one. When it came it was the new version with a gamma match. Not even close to the Avanti original so I sold it after taking some photos and measurements.[/FONT] [/QUOTE]

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