I got my X-70 last week just in time for a weekend of flooding. This week's weather looks to be more cooperative. Therefore, I did some air testing. This test was outside with the targets on the ground. A wooden yard stick was standing vertically to give the measurement. I was in coin and treasure mode in all metal with a sensitivity of 23. I did it mainly to compare the responses of the two coils. Here are the results in inches.
Nickel: MF-10, HF-11.5
Dime: MF-9.5, HF-9.5
Silver Quarter: MF-10, HF-10
Franklin Half: MF-11, HF-11
Three Ringer: MF-10, HF-11
I understand that air testing must be taken with a grain of salt. I thought the comparison of the two coils made it a more valuable test, so I decided to share the results.
Nickel: MF-10, HF-11.5
Dime: MF-9.5, HF-9.5
Silver Quarter: MF-10, HF-10
Franklin Half: MF-11, HF-11
Three Ringer: MF-10, HF-11
I understand that air testing must be taken with a grain of salt. I thought the comparison of the two coils made it a more valuable test, so I decided to share the results.