Here's an example of the use of the Modulate component.

Very nice! Loads instantly. I want to test some filter and limiter circuits without building them and this makes it bearable.
1) The frequency band is what I was looking for but what about transmission power expressed as voltage to the receiver? The values given by radio stations are in power and vary by distance.

2) How reliable overall is this simulation? It doesn't appear to exhibit user induced aliasing because you didn't use the maximum time step function.

3) I want to learn how to use the math functions better because they look powerful. Can you recommend a resource? I suspected difficult calculations were causing the slow down rather than my computers processing speed. The biggest trend I noticed is very large values are proportional to simulation speed. I must have crashed LTspice 50 times already.. is that a lot? Lol

 

1) V2 defines the output voltage amplitude of the Modulate component. You can apply that voltage to a 50Ω or 300Ω or whatever load and plot the power in the load (left-click Alt while hovering the cursor over the load component).
2) LTspice is very reliable, if you give it reliable/realistic inputs. The Modulate component is proprietary to LT, so its internal workings are a mystery.
3) LTS Help for the behavioral devices is concise but good.

In my experience LTS crashes and slow-downs are generally caused by attempted infinite rates of change of values. It's usually a good idea to use non-ideal components, e.g. to give an inductor or capacitor a small series resistance value.

 

1) V2 defines the output voltage amplitude of the Modulate component. You can apply that voltage to a 50Ω or 300Ω or whatever load and plot the power in the load (left-click Alt while hovering the cursor over the load component).
2) LTspice is very reliable, if you give it reliable/realistic inputs. The Modulate component is proprietary to LT, so its internal workings are a mystery.
3) LTS Help for the behavioral devices is concise but good.

In my experience LTS crashes and slow-downs are generally caused by attempted infinite rates of change of values. It's usually a good idea to use non-ideal components, e.g. to give an inductor or capacitor a small series resistance value.

Is there a way to stop a simulation say when resources are at say 80%? Eventually it reaches the memory limit and the CPU hangs at 99-100%. I wonder if there is a way to prevent this.

 

Is there a way to stop a simulation say when resources are at say 80%?

No that I know of, but someone else here may know a way.

 

Is there a way to stop a simulation say when resources are at say 80%? Eventually it reaches the memory limit and the CPU hangs at 99-100%. I wonder if there is a way to prevent this.

What are the resources in this context?

 

Is there a way to stop a simulation say when resources are at say 80%? Eventually it reaches the memory limit and the CPU hangs at 99-100%. I wonder if there is a way to prevent this.

you can set the RAM limit and number of threads in LTspice control panel.
But I'd be more concerned with finding out why your system crashes. It shouldn't crash (mine never does).