Simplex repeater

Its a repeater to be aplied to the same and in any type of radio. Receives audio, and then retransmits it!! It’s connections are output audio that goes to the radio, and PTT. How it works: when connected to the radio, it gives us the possibility to talk 20 secs max. If the 20 secs are over or not, when we stop talking, it retransmits what we said. In the same frequency or shifted, the most pratical side, is when connected to the same readio, including handhelds, becoming very portable and with its use eased anywhere.

it repeats what we say...

PCB ready to connect to the radio

Power supply is between 5VDC and 12VDC. Audio connections are straight. Just connect to Speaker Out and Mic In, and also PTT. In the end of every transmition it transmits a short “QSL ??” “bip”. :-) It consumes 10mA standby, and 30mA full operation. So, it ca

The binary to program the PIC, schematic and PCB , of the Repeater simplex, are available here !!

Interested to know how much would it cost you ??  click here !!

[electronics]

[Beacon] [DTMF] [Repeater]
escrevam-me !