Still learning how to use the VNA. Grabbed a handful of Crystals and clipping them to the VNA fixture described in my previous post, I collect the following information:
I am not sure that I am doing things correctly, and certainly am not yet in a position to interpret the results seen above. More study and experimentation will be required, but it looks like I will certainly have the necessary information to design filters.
More to come...
The post yesterday delivered my bag-o-rocks from China. I ordered on eBay 100, 20 Mhz surface mount crystals for building crystal filters.
I am going to have to convince my buddy Eldon, WA0UWH to help me categorize these using his AIM-4170B analyzer before I solder them into a circuit. $10 delivered from China is pretty good, but it remains to be seen how these crystals operate.
