Nearly all C-band communication satellites use the band of frequencies from 3.7 to 4.2 GHz for their downlinks, and the band of frequencies from 5.925 to 6.425 GHz for their uplinks. Note that by using the band from 3.7 to 4.0 GHz, this C-band overlaps somewhat into the IEEE S-band for radars.
A ventral hernia occurs when a weak spot in the abdomen enables abdominal tissue or an organ (such as an intestine) to protrude through a cavity muscle area. These hernias are visibly identified by a bulge in the belly area. The most common sites for ventral hernias are the site of a previous abdominal procedure (an incisional hernia), the navel (an umbilical hernia), and the groin (an inguinal hernia). About 90,000 ventral hernia repairs are performed in the United States each year.
Inguinal Hernia. This is the most common hernia (about 70% of all hernias are inguinal hernias). They occur in the groin, the small area of the lower abdomen on each side just above the line separating the abdomen and the legs, and around the pubic bone. Why do they occur? They occur through the inguinal canal, a conduit where the testicle comes through on its way to the scrotum during the development of males. Men and women develop from the same basic pattern so there are anatomical similarities between men and women, meaning that women also have the inguinal canal.