Loot from NEARfest
May 4, 2012
March 25, 2012
filters with ngspice
I’m learning about RF filters, which is a lot of fun, but it’s math intensive (at least for me it is). I’m trying to work with the gEDA tools like gschem and gattrib along with ngspice so I can simulate circuits before I put them together.
gEDA and ngspice together forever
March 19, 2012
RF Electronics Studies
I had to set aside Experimental Methods in RF Design recently in the middle of chapter two because I needed a refresher in some basic RF electronics. Well, after some external study with the ARRL Handbook, I’m back to plowing through EMRFD. The content is very worthwhile. I’m having some trouble with the typography, but nothing that can’t be figured out. I’ve been experimenting with filters and amplifiers while reading and I’ve been wanting a spectrum analyser to get a better picture of how they work over frequency ranges. Well, my wife agreed to let me plunk down some coin on a new Atten AT6011 spectrum analyser. I hope to receive it this week or next from California. After I get to know it, I’ll write up a review since I haven’t seen a good one online.