There is no single established software or service called "RTNK zip." Depending on what you are looking for, you may be referring to one of two very different things: a regional news application or professional engineering software.
A common download for medical imaging and 3D reconstruction is the RTK-2.7.0.zip found on OpenRTK.org . Download RTNK zip
This is the official app for Radio Television Nikšić . It provides live streams, news reports, and video content focused on the city of Nikšić and the broader Montenegro region. There is no single established software or service
This is typically downloaded as an APK for Android or directly from the Google Play Store rather than a ZIP file. If you found a "RTNK.zip" file on a third-party site, be cautious as it may be an unofficial bundle. Option 2: RTK Software (Engineering & GNSS) It provides live streams, news reports, and video
If you are looking for news from Montenegro, you are likely looking for the application.
Ensure the file inside is what you expect (e.g., a .exe for an installer or .bin for firmware). Be wary of "double extensions" like document.zip.exe .