I’m in the process of selecting locations for one or more “MOAN” relay nodes in Sacramento, CA.
I have used the engine at “Radio Mobile Online” to produce coverage plots for a couple of our possible sites, and have gotten some awesome results - but I want to make sure I’ve done it correctly.
Specifically, the engine asks for certain parameters of the receiver and transmitter that I’ve just guessed at so far, including:
- Tx power. I have this at 1 Watt.
- Tx line loss. I have this at .1 dB, to be on the conservative side.
- Rx line loss. Again, I have set this at .1 dB.
- Rx threshold in uV. I have this at .25 microvolts.
- Required reliability. Totally guessing here. I put it at 60%.
I’m also working with an assumption that narrowband data is more robust and reliable than voice transmission. This based on experience with HAM radio, where data transmission is able to “get through,” even at relatively lower power levels, under atmospheric conditions that render voice communications literally impossible. Don’t know if the same applies to the mode of data transmission utilized by goTenna operating at UHF. Hence the “reliability” at 60% (the default for voice in this program is 70%).
Any help here would be greatly appreciated. Thanks!