ojrupload.blogg.se - Ferrite rod inductor calculator

Make sure to get ferrite rated to a frequency well beyond the one you want it to resonate at. The Q can be fairly high since it is limited only by the resistance in the inductor coil and any losses in the ferrite.

The ferrite rod and the coil wrapped around it form the inductor, and you connect a deliberate capacitor accross it. You asked a bunch of questions that are really too broad taken together, so I'll just answer what seems to be the underlying question about how to make a tuned ferrite rod antenna.īasically a ferrite rod antenna is a resonant L-C circuit. I'm having a hard time tracking down an info and I think that's because I just don't know what search terms to use.

Any resources for this sort of stuff will be useful.

If it is trial and error, once I have my ferrite rod wrapped in wire, how do I quickly test it? Do I need an oscilloscope or some other piece of equipment? I have an avalanche beacon I can set to transmit, but I guess my question is how do I know my antenna designed to pick it up?.

Given 2) How do I know how much wire to wrap? It seems like it's almost trial and error and I haven't been able to find any good resources for such calculations.

I only need it for one frequency and it is below AM, right?

Everything I find on the net involves building an antenna for AM frequency radios.

If I get a ferrite rod from here -> do I want the 125u ferrite or the 2000u ferrite? They seem to both cover the frequency I need.

While I am pretty technical, hardware and especially radio are completely new to me. Avalanche beacons transmit at 457 kHz and from the bit of research I've done it seems a ferrite rod antenna is the first piece I need.

I'd like to build something that is basically the equivalent to a home made avalanche beacon finder. I am trying to piece together what I'd need for a small hobby project.