Check the listing for details. Custom Built Ham Radio AllStar / EchoLink Simplex node, Read Description. Color: Black, Condition: Used. Listed at 399.00 USD. This is a service to custom build an AllStar Link or EchoLink Ham Radio Simplex Node. Follow the steps: 1. Provide me with a commercial radio, such as a Motorola Maxtrac, CDM750, Kenwood TK-880 etc... 2. Provide me with your AllStar Link or EchoLink account information, CW ID, etc.... I will custom build an AllStar or EchoLink node interface on the radio, and INCLUDE a raspberry pi, custom sound card, and all of the necessary software to link your radio system to the AllStar or EchoLink ham radio networks!Please message or e mail me for any questions and to receive the address to ship to when you are ready. Please message me the radio model before you ship, so I can make sure the radio will work. Skyler WØSKY w0sky981 at gmail