I wasn't really sure the right forum to put this topic in. But "Ham Radio Life" seemed appropriate as it is more about those tough decisions on property purchases than about ham radio. Soil conductivity and the various maps has been discussed in various threads over the years. Never having had a real station, I had made due over the years with whatever I could. My wife and I will soon be entering the market to buy our first home (Planning to start the real search in October). For us there are three key drivers: 1) We want to start having kids in the next year or two and therefore desire the extra space. 2) I want to be able to have some place where I can play radio in some fashion 3) My wife wants a place where she can entertain her friends. As those who have been on QRZ.com for years know, sometimes I get into my "thinking/planning" moods where I start pondering things. I lurk in the antenna threads and today spotted a discussion which mentioned several vertical antennas. I had recently come across K3LC's article from 2004 in NCJ which talks about antenna performance over various ground systems (http://ncjweb.com/bonus-content/k3lcmaxgainradials.pdf). The article talks about optimum radial systems under various soil conditions. I heard several locals complain about the ground conductivity around here, and it is true much of the area west of IH-35 has a rating of 8 millisiemens. Much of East Austin has a rating of 15 millisiemens. However, there is a section in Williamson County which includes a large part of the area that I am looking at which has a rating of 30 millisiemens. I am no expert in any of this, from what I have read the only real difference here is vertical antenna performance will need far more radials and longer radials to reach maximum gain with the poorer soil. Of course it will already be enough of a challenge to find some place without an HOA or CC&R's so we will take what we can get. It does beg the question if I would consider soil conductivity at all when purchasing the home. I have read it can make a different with other antenna systems as well though it would seem a no brainer if there was a larger lot in the area with the poorer soil that I would still likely go with the larger lot as that gives me more flexibility with antennas. This is a completely hypothetical discussion. There are far more important things on our home list, but I finished up my work early today and clearly have too much time on my hands. I would be curious who has considered soil conductivity when buying a house or property. So much of the east would have what is considered poor soil conductivity so many practically it doesn't make a huge difference.