Repeaters can be linked together by way of many different modes. This may include RF, EchoLink, AllStar, etc. This article is not intended for DMR linking.

Repeaters may be linked to a single repeater, multiple repeaters, or a simplex frequency. Repeaterbook tracks this linking and displays it back on a repeaters Detail page with links so that users can quickly navigate to the Detail pages of each of the repeaters and learn about the nature of the linking. If a repeater linking system has been created, clicking on the name of the linked system open a new search window that displays all of the repeaters in that system, including an option to map the system.

Admins and repeater custodians can manage the repeater linking information. Only repeaters that are linked routinely should be listed. This is not intended for dynamic links between repeaters, like a temporary link between to EchoLink repeaters.

To add a link to a repeater, go to the repeater's Detail page and click the “SUBMIT UPDATE” menu item. Click the submenu item to “MANAGE LINKS”. A pop-up window appear with three options to select from:

• Link to Repeater
• Link to System
• Link to Simplex

This type of link is preferred when only one or two repeaters are linked together. You will need to enter the following information:

1. Persistence: This is the nature of the link. Is it full-time, part-time, linkable, or On-Demand? Choose “full-time” if the repeaters are always linked to each other. Select full-time of they are only linked part of the time, such as for nets. Select linkable if there is a pre-configured link that a repeater sysop can activate to link the repeater. Select On-Demand if the repeater linking can be completed by someone other than a sysop via a DTMF code, for example.
2. Reciprocity: Is the repeater transmitting and receiving the other repeater in full-duplex? If it is just listening to the other repeater, this is half-duplex and that option should be selected.
3. Internet-Linked: If the repeater is RF-linked, select No. It's helpful to know if the repeater is Internet-linked as those links tend to be more fragile during serious natural disasters. Internet links tend to be linking via IRLP, EchoLink, AllStar, and WIRES.
4. State/Province: Which state or province is the repeater be linked to assigned to?
5. Repeater ID: is the repeater ID of the repeater. This can be located by searching for the repeater and viewing its Detail page. Under the menu is a header that includes the repeater's location and call sign in bold, large font. Under that is the “Repeater ID.” This is a set of characters followed by a dash followed by numbers. The Repeater ID is the portion after the dash. For example 48-12345, the value 12345 is what is desired.
6. Display as: indicates how the link will be displayed on the Details page. Location, Frequency is preferred for a repeater in the United States. All other parts of the world tend to provide an independent call sign for a repeater and selecting “Call Sign, Frequency” may be the preferred display.