Insertion Loss: Black Beauty max 80

This choke is optimized for the 80 meter band and exhibits very low loss.

Inherent Loss, which is the dissipative portion of Insertion Loss (the other portion is mis-match loss), on 80m is about 0.029 dB, which is only 0.67%.

This loss is so small that it has no discernable effect on signal strength, either on transmit or receive.  It also means less power is dissipated in the choke, which allows the use of maximum power under almost all conditions. 

The Inherent Loss is also very low on the adjacent bands, making this choke very desirable on those bands too.

Insertion loss on 160m is about 0.018 dB, which is 0.41% .
Insertion loss on 40m is about 0.047 dB, which is 1.08%.