Supports DMR, P-25, D-Star and systemFully testedOnboard LED to show status (TX,RX,PTT,Mode)SMA antenna connector, antenna includedClean mounts on all raspberry current pi including pi zero with /2wMode: support both duplex mode and single modeDifferences in duplex and simple: in duplex mode, it has 2 time slots, and tx and rx can do at the same timeRadio Frequency: in duplex mode, support uhf 430-440mhz, in single mode support uhf 430-440mhz and vhf 140-150mhzBest fit: tx = 0, rx = 0, no offset needed.Modem select: STM32-DVM/MMDVM_HS- hat (gpio)Antenna: onboard two antennasLEDs: Onboard LEDs to show status, with status words on shieldHow to write wifi details to hotspot: 1: generate wifi configuration file and connect it to tf card.We need a TF reader. Put our TF card into this TF reader and plug that into our computer.Go to http://.pistar.uk/wifi_builder.phpand then fill in your wifi name in ssid, password in psk, click submit. Then the wwpa_supplicant.conf file. is generated. Drag this file to the boot path of your tf card. And plug the card into your hotspot. Turn on your hotspot and wait 1-2minutes.then let's go tohttp://pi-starand play with the settings. Please keep this in mind that gadget only supports 2.4Gigahertz router, and does not work with 5.8G router.Model Number: MMDVM Hotspot BoardType: moduleType: Voltage RegulatorType: For MMDVM color:WhiteMaterial:PCBPackage Contents:1 x MMDVM Hotspot BoardOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.