Here is a homebrew radio repeater controller. The controller is based on an Atmel 8051 processor.
Amazon.com: Gam3Gear Surecom 48-T1 + 50-Q1 Repeater Controller Cable for QYT WACCOM KT-UV980 Mobile FT-2800 T-8800 FT-7800 Radio Walkie Talkie : Electronics
Surecom Sr-112 Simplex Controller D.i.y. Pcb For Repeater Controller - Buy Simplex Controller,Repeater Controller Pcb,Repeater Controller Product on Alibaba.com
picaxe 18X repeater controller under Repository-circuits -29799- : Next.gr
Microchip PIC16F84A & MT8870 DTMF repeater controller
RPTC - Repeater controller | Microsat APRS
RPi Repeater Project Archives - OpenRepeater Project
ID-O-MATIC 4 repeater controller VOICE BOARD w/WIRES - MUST READ AD! | eBay
Amateur Radio ID-O-Matic IV 4 CW Repeater Controller Motorola GM CDM USB | eBay
Προϊόντα surecom sr 629 duplex repeater controller cross, | Zipy - Απλές αγορές από AliExpress
Amazon.com: Mcbazel Surecom SR-328 Cross Band Radio Duplex Repeater Controller with 2 pcs K Plug Cable for Kenwood BF-888S WouXun BAOJIE HYT Linton : Electronics
SURECOM SR-629 2 in 1 Duplex Repeater Controller
RPTC/GSM - Repeater controller with GSM | Microsat APRS
REPEATER CONTROLLER FOR TRANSCEIVER - Share Project - PCBWay
Αγορά Εξοπλισμός επικοινωνίας | Surcome SR-628 Cross Band Duplex Repeater Controller for TYT Baofeng Ham Walkie Talkie with 2 connection cables
Simple FM repeater controller and morse coded ID message generator by Aleksander Stare S56AL
Elektra 2000CW - Repeater Controller - Hamtronix
Duplex Repeater Controller Sr-628 For Surecom Controller Cross Band Duplex Repeater For Walkie Talkie Two Way Radio - Walkie Talkie Parts & Accessories - AliExpress
Duplexer Repeater Controller – Hotdeal Store
Mk1 Repeater Controller - G1SLE .
EMCO - Portable Repeater Controller
Repeater controller
PICAXE-18X Repeater Controller
Αγορά Γουόκι-το | RF-TDR1 Cross band Full Duplex repeater controller for baofeng walkie talkie portable two way radio
JB Systems - LED REPEATER - Controller and PSU
