Why don't we see any comm systems developed around low frequency helical resonators (a.k.a. TESLA COILS)?

Some very interesting experiments can be done with a pair of low power matched Tesla coils.....you can have a single wire in between them or if your tuning skills are superb you can use the earth alone as the conductor between them.

Remember, a true Tesla system is designed to not create an electrical discharge, it is designed to suppress it (discharge equals a loss of transmission energy).....although the modern Tesla coiler achieves the exact opposite.

 

I forgot to mention, the lower the frequency the better it works (i.e. in the 30 to 60 kilohertz range). I know that coils for these frequencies would be rather large, and that is the main reason they are not used, but there are still some very interesting properties that have yet to be explored with them.

Thanks in advance.