Basic Antenna Question
Basic Antenna Question
(OP)
I am not really familiar with antennas but I was wondering if someone could run me through the dBi system... More specifically does a higher dBi value make a better antenaa or a lower one? Thanks





RE: Basic Antenna Question
This should answer your question.
RE: Basic Antenna Question
If you want to receive from all directions you want a lower gain antenna!
RE: Basic Antenna Question
from one point to another high gain is good, more signal gets to the other end. Cell phones have low gain and transmit everywhere because you don't know where the cell towers are located.
Lots of good reading material out there. Just Google antennas.
kch
RE: Basic Antenna Question
DBi alludes to a radiator which illuminates equally in all directions. Equal apeture...
The 'i' stands for Isotropic, the closest demonstration being a lightbulb but even the base keeps it from being a perfect ISOTROPIC radiator...
A simple dipole has some gain over a isotropic because it is somewhat directional...
The isotropic number is higher than a dipole so 'looks' like a better antenna...
It's all relative to whichever system you keep your numbers in...
73s from DaveAA1A