Search found 2 matches

by PU4RON
Sat Aug 01, 2020 1:18 pm
Forum: Other MMDVM Modem Boards
Topic: SOLVED: MMDVM_POG REPEATER LOCKING PROBLEM
Replies: 2
Views: 554

Re: SOLVED: MMDVM_POG REPEATER LOCKING PROBLEM

The RPI is more susceptible to failure than an arduino for this type of function. If for any reason the SD card fails or an error occurs on the RPI's i2c, the MMDVM card will lock up and the PTT will be active.
by PU4RON
Mon Jul 13, 2020 3:38 pm
Forum: Other MMDVM Modem Boards
Topic: SOLVED: MMDVM_POG REPEATER LOCKING PROBLEM
Replies: 2
Views: 554

SOLVED: MMDVM_POG REPEATER LOCKING PROBLEM

Hello! The problem of the MMDVM_POG card that crashes and stops working after a certain time when receiving transmissions via RF was solved using a SI5351 module and an aduino pro micro to manage the module. The problem is related to the TCXO at 19.2 MHz. The entire circuit was removed from the txx ...