Radio interface RI-1 V1.0

Prva verzija modula nastala potrebom spajanja ručnih radio uređaja na računalo radi pokretanja linkova za FreeRadioNetwork. U originalnom stanju se može isključivo koristiti za ručne radio uređaje koji imaju tzv Kenwood plug (3.5mm i 2.5mm stereo utičnice). Uz male korekcije se može koristiti i na drugim uređajima koji nemaju PTT kroz masu. Ovaj modul je zamjenjen verzijom RI-2 V2.0 i V2.1. Shemu ovoga modula možete pronaći u DIY dijelu EB stranica.

This first version of the RI module was created by the need to connect handheld radios to a PC, to launch links for FreeRadioNetwork. As is shown, it can only be used for handheld radios that have “Kenwood plug” (3.5mm and 2.5mm stereo jacks). With small corrections, it can also be used on other devices that do not have PTT through the ground. This module has been replaced by RI-2 V2.0 and V2.1. Schematic diagram of this module is avaliable in the DIY section of EB web.

Info about: Interface board RI-1 V1.0
Only for handheld radios with Kenwood plug

Suitable for:
Echolink, Freeradionetwork, APRS

PTT Trigger from PC:
RS232 port (RTS or DTR)

PTT Trigger to RADIO:
Isolated = optocoupler