Personally I load up 8 comm says and blast into a circular orbit, launch one ( decoupled force will change the orbit of a light satellite) and then burn retrograde to lower my periapsis so after one orbit I arrive at my apoapsis ahead of the first sat, launch another, switch to it and burn prograde to get the orbit the same as the first sat but ahead of it. Keep that up, trail and error and eventually you will have lots of sats up in similar orbits spaces evenly.
If you don't have enough sats to go round the whole planet/moon just do another launch and RV with the leading sat and place move in orbit.
Obviously this is not efficient but with a high enough starting orbit and some trial and error you can get 4 sats in equatorial orbit and 4 sats in polar orbit and cover the whole planet/moon.