The C3S-JK (Tribander) has been re-designed, optimized & Improved from the very popular Force 12 Tribander

Here are the important changes/features from the classic design ....

1. The feed point for 20M, 15M & 10M are connected using a transmission line, the same way as the JK-MidTri & JK-BigTri.

2. The mast mount position is right at the center of the antenna at 72".

3. The overall gain and swr on all bands is consistent & provides excellent performance.