The phrase "positive indication" means receiving a clear sign or evidence that supports or confirms something in a good or favorable way. Full definition
The system is always operating and removing heat from the reactor module, thereby providing positive indication this system is working. (gehitachiprism.com)
I would not take this as a very positive indication but it is a ray of light in these dark days. (canadianmortgageadvisor.ca)
There were positive indications in early court decisions that, in recognising Indigenous relationships to land, the law of native title would retain the essential identity of these relationships as Indigenous. (humanrights.gov.au)