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It would be interesting to know where the advantage is most apparant on a A99 as to where you mount the quarter wave ground planes. Do you go for the proximity to the radiator by mounting it underneath the tuning rings or do you mount it at the base of the mounting section near the SO239?
The A99 is difficult because of the length of coax inside and as mentioned before this will increase your electrical length of your GP kit before you even attach it. It would be interesting to know if the electrical length or proximity to the driven element is the most important. It may benefit owners of the A99 to scrap the existing SO239 socket and solder their coax direct to the tuning section. While your at it, solder a jumper from the outer shield of that connection to the very top of the mounting tube. That would make it easier all round but would mean a total stripdown.

[QUOTE="nav2010, post: 347161, member: 14757"] It would be interesting to know where the advantage is most apparant on a A99 as to where you mount the quarter wave ground planes. Do you go for the proximity to the radiator by mounting it underneath the tuning rings or do you mount it at the base of the mounting section near the SO239? The A99 is difficult because of the length of coax inside and as mentioned before this will increase your electrical length of your GP kit before you even attach it. It would be interesting to know if the electrical length or proximity to the driven element is the most important. It may benefit owners of the A99 to scrap the existing SO239 socket and solder their coax direct to the tuning section. While your at it, solder a jumper from the outer shield of that connection to the very top of the mounting tube. That would make it easier all round but would mean a total stripdown. [/QUOTE]

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