# How to make ELF-ULF antenna myself?

I want to check the EM pulse between 3HZ-3kHZ with N9041B UXA Signal Analyzer,it seemed the only antenna I can use is Aaronia MagnoTRACKER,but the price is not affordable.

Then I plan to make ELF-ULF antenna myself,could you pls give me some thought to start with?

• Sounds like an XY problem. The antenna cost is a rounding error on the N9041B analyser. What signals are you hoping to receive - natural background from the earth and sun, or artificial signals, like a mine rescue system, etc? Sep 29 at 15:27
• Those two cylinders likely house ferrite loop antennas. Sep 30 at 13:50
• @tomnexus,ELF-ULF natural background pulse. Oct 4 at 21:20

If you need calibrated output then you probably won't be able to do it. That's why they are so expensive. It's like a \$20 SDR dongle versus a \$2,000 spectrum analyzer, with the most notable difference being that the spectrum analyzer is calibrated and tells you how much power is at each frequency. If you don't need calibrated output and just want to get a pretty good feel of what's there, then you should totally build your own antenna.