wrote:
A Friend wrote in rec.arts.tv:

In article , Ed
Stasiak wrote:

Interesting pic, showing what tv programs are just now reaching other planets,
up to 70 light years from Earth when the first tv signals were broadcast;

https://blogs-images.forbes.com/star...Ui5TtZZIh7e1wH
61e26RoA.jpg?width=960

All our signals descend into general background noise within a
lightyear and a half. They can't and won't be detected unless
somebody travels pretty damn close to us and is listening carefully for
them.

Is that according to only 1970s or 80s research.

It's hard enough to communicate with Voyager when two dishes converge.
Horizontally omni broadcast has low energy and complex signals. Forget it.

Greg