FDM vs. FDMA. Frequency Division Multiplexing, or FDM, is a multiplexing technique for the physical layer that allows multiple low bandwidth signals to share the same high bandwidth frequency range.It is achieved by allocating a smaller frequency range to each signal that is using the same channel.ummary: 1. FDM is a physical layer multiplexing technique, while FDMA is a data link layer access method. 2. Using FDM to allow multiple users to utilize the same bandwidth is called FDMA.
Checking your iron levels is one of the most important tests that everyone should have done on a regular basis as part of a preventive, proactive health screen; it can be done with a simple blood test called a serum ferritin test; your ferritin level should be between 20 and 80 ng/ml, and 40 to 60 is ideal.
Hemochromatosis is an inherited blood disorder that causes the body to retain excessive amounts of iron. This iron overload can lead to serious health consequences, most notably cirrhosis of the liver.he most common diagnostic methods for hemochromatosis are blood studies of iron, genetic blood studies, magnetic resonance imaging (MRI), and liver biopsy. Blood studies of transferrin-iron saturation and ferritin concentration are often used to screen for iron overload.