# Talk Group 3100 The intent of this talk group is a place for **USA Based Amateur Radio Operators** to have a channel to call to other USA based stations, ask questions, have general conversations and of course use as a calling channel to find other hams to communicate with. This talk group is bridged with several CBridge systems in the USA. This talk group is fairly popular and is carried by a large number of repeaters and a large number of hotspot users. All Amateur Radio Stations are welcome to talk on this channel. **We ask non-USA based Stations** when making a call and have established communication with a station to please move to a TAC or another talk, specially when it is another non-USA based station. This will free up the talk group to allow other USA based stations to make a call. **This channel is a DMR only mode talk group.** Bridges to other modes are not permitted. This also includes any devices (hotspots, repeaters, etc.) which are not DMR Based are not permitted. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://help.brandmeister.us/operating/talk-group-3100.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.