Well, lets see here. Huntress and Giant Killer are milair, use AM.
However, HF-GCS is the new name for the old Global HF system, and while
they primarily use USB on HF, they also use other digital modes as well.

73s Mike

Robert11 wrote:
Could someone please tell me what modes (AM, USB, etc) the following are.
Want to make sure I have them right.

HUNTRESS

GIANT KILLER

HF - GCS

Thanks,
Bob