[TowerTalk] analyzing antenna systems - some questions

[k7wxw]

I am building my own antennas and have a couple of questions about using antenna analyzers properly. Here's the setup:

I have a 133' doublet, fed with  46' of 450 ohm window line, into a Johnson matchbox.  My rig is a FT-897D. I mostly run QRP though I venture up to 100W on SSB.  Because my inline SWR meter is on the repair bench, I depend upon the rig's SWR indicator. 

To characterize the antenna/tuner system from the radio, I've connected a Comet CAA-500 on the radio side of the matchbox to sweep through the bands by hand. Basically I set the frequency on the analyzer, and tune for lowest SWR.  So each measurement consists of the bandswitch/tune/match settings on the matchbox and the SWR and ohmic readings on the analyzer. 

So, three questions: does an analyzer like the CAA-500 have enough drive to properly drive the matchbox/feedline/antenna system?  If it doesn't, what other options do I have for characterizing the antenna system?  

And lastly, can anyone point me to a good tutorial on Smith charts? I'd like to see if I can convert the impedance I am seeing at the matchbox to what is happening up at the dipole feedpoint. 

Thanks and 73 de Bill K7WXW
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