I am embedding a LEA M8T module into a timing measurement system. Since maintaining a good sky view will be problematic, I have opted to use an active antenna instead of a passive one. In looking over the LEA-M8T Hardware Integration Manual, there are two circuits that appear applicable. They are shown in figures 9 and 11 (pages 16 and 18). - both use VCC_RF to provide antenna power. The circuit shown in figure 11 is simpler - no blocking cap and no inductor. But, if I understand the manual correctly, the antenna power supervisor circuit needs to be enabled for this circuit to work. I have an M8T eval kit and have looked over the schematic carefully. It seems to be wired as per figure 11 - but instead of using VCC_RF, it implements a separate regulated voltage source. Does that imply that the eval kit has antenna power supvervisor enabled? or maybe I don't have the correct picture of just what the supervisor does......
=> So, my question is the following: If I want to use the default LEA M8T configuration on power up, can I use the circuit shown in fig. 11? (in other words, is the antenna power supervisor active by default...if I understood that correctly?)
Or, is there a reason to prefer the circuit shown in fig. 9 for a simple embedded solution using an active antenna?