Details
Product Features:
1. This product MMDVM is designed to be an open source multimode digital voice modem that utilizes the functionality of an ARM processor and a simple analog interface board.
2. The multimode digital voice modem is a combination of modem hardware and software developed to handle all amateur digital voice modes.
Initially it will support D-Star and DMR, later it will support other versions, as well as the built-in FM repeater controller.
4. For all modes except DMR and FM, the modem can be used in simplex or duplex mode, while for DMR and FM full duplex must be used.
5. This board needs to be used with Raspberry Pi3, Orange Pie and many kinds of school development boards.
1. This product MMDVM is designed to be an open source multimode digital voice modem that utilizes the functionality of an ARM processor and a simple analog interface board.
2. The multimode digital voice modem is a combination of modem hardware and software developed to handle all amateur digital voice modes.
Initially it will support D-Star and DMR, later it will support other versions, as well as the built-in FM repeater controller.
4. For all modes except DMR and FM, the modem can be used in simplex or duplex mode, while for DMR and FM full duplex must be used.
5. This board needs to be used with Raspberry Pi3, Orange Pie and many kinds of school development boards.
Parameter description:
1. This board needs to be used with Raspberry Pi3, Orange Faction, many kinds of school development boards, running pi-star
2. The board has been applied to GM300, GM3188, 3688, 950I, 338, DR-1X, other types of repeaters and bus stations need to study themselves
3. For self-developed programming, Teensy 3.1/3.2 and mbed platforms, the only hardware requirements are based on ARM M3, M4 or M7, and access to raw interrupts and ADC and ADC ports as well as digital signaling ports.
4.MMDVM open source multi-mode digital voice modem for Raspberry Pi
1. This board needs to be used with Raspberry Pi3, Orange Faction, many kinds of school development boards, running pi-star
2. The board has been applied to GM300, GM3188, 3688, 950I, 338, DR-1X, other types of repeaters and bus stations need to study themselves
3. For self-developed programming, Teensy 3.1/3.2 and mbed platforms, the only hardware requirements are based on ARM M3, M4 or M7, and access to raw interrupts and ADC and ADC ports as well as digital signaling ports.
4.MMDVM open source multi-mode digital voice modem for Raspberry Pi
Product List:
1X module
1X connection cable
2X terminal
1X module
1X connection cable
2X terminal
FAQ.
After connecting the GM 3, the LED blinks fast when powered on, if your MD 380 PTT presses, the COS LED will light up, then you have to use the debug port to check the BER, or in the pi-star panel, adjust the RX_R BER to <=2%, then test in Parrot you can hear yourself and the PTT LED lights up, test done! It's easy, I tested it many times.
After connecting the GM 3, the LED blinks fast when powered on, if your MD 380 PTT presses, the COS LED will light up, then you have to use the debug port to check the BER, or in the pi-star panel, adjust the RX_R BER to <=2%, then test in Parrot you can hear yourself and the PTT LED lights up, test done! It's easy, I tested it many times.
FAQ:What mode did you test?
The DMR or YSF or P25 I tested is the same.
FAQ:Do I need to use the MMD VMCal program for testing?
If the test fails, it is best to use MMD VMCal to test the GM3XX TX-> move function. the GM3XX RX-> function is easy to check just the cos (receive signal) LED and the mode LED, if both LEDs are on, the GM3XX Rx is working!
FAQ:Do I need to change the MMDVM. ini->TX invention and RX invention, which is also imported, in MMDVMCal TX test mode, you can press I to fabricate TX,to make sure if your GM3xx is fabricated successfully.
The DMR or YSF or P25 I tested is the same.
FAQ:Do I need to use the MMD VMCal program for testing?
If the test fails, it is best to use MMD VMCal to test the GM3XX TX-> move function. the GM3XX RX-> function is easy to check just the cos (receive signal) LED and the mode LED, if both LEDs are on, the GM3XX Rx is working!
FAQ:Do I need to change the MMDVM. ini->TX invention and RX invention, which is also imported, in MMDVMCal TX test mode, you can press I to fabricate TX,to make sure if your GM3xx is fabricated successfully.
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MMDVM Open-Source Multi-Mode Digital Voice Modem Board Module For Raspberry Pi3
DESCRIPTION
Product Features:
1. This product MMDVM is designed to be an open source multimode digital voice modem that utilizes the functionality of an ARM processor and a simple analog interface board.
2. The multimode digital voice modem is a combination of modem hardware and software developed to handle all amateur digital voice modes.
Initially it will support D-Star and DMR, later it will support other versions, as well as the built-in FM repeater controller.
4. For all modes except DMR and FM, the modem can be used in simplex or duplex mode, while for DMR and FM full duplex must be used.
5. This board needs to be used with Raspberry Pi3, Orange Pie and many kinds of school development boards.
1. This product MMDVM is designed to be an open source multimode digital voice modem that utilizes the functionality of an ARM processor and a simple analog interface board.
2. The multimode digital voice modem is a combination of modem hardware and software developed to handle all amateur digital voice modes.
Initially it will support D-Star and DMR, later it will support other versions, as well as the built-in FM repeater controller.
4. For all modes except DMR and FM, the modem can be used in simplex or duplex mode, while for DMR and FM full duplex must be used.
5. This board needs to be used with Raspberry Pi3, Orange Pie and many kinds of school development boards.
Parameter description:
1. This board needs to be used with Raspberry Pi3, Orange Faction, many kinds of school development boards, running pi-star
2. The board has been applied to GM300, GM3188, 3688, 950I, 338, DR-1X, other types of repeaters and bus stations need to study themselves
3. For self-developed programming, Teensy 3.1/3.2 and mbed platforms, the only hardware requirements are based on ARM M3, M4 or M7, and access to raw interrupts and ADC and ADC ports as well as digital signaling ports.
4.MMDVM open source multi-mode digital voice modem for Raspberry Pi
1. This board needs to be used with Raspberry Pi3, Orange Faction, many kinds of school development boards, running pi-star
2. The board has been applied to GM300, GM3188, 3688, 950I, 338, DR-1X, other types of repeaters and bus stations need to study themselves
3. For self-developed programming, Teensy 3.1/3.2 and mbed platforms, the only hardware requirements are based on ARM M3, M4 or M7, and access to raw interrupts and ADC and ADC ports as well as digital signaling ports.
4.MMDVM open source multi-mode digital voice modem for Raspberry Pi
Product List:
1X module
1X connection cable
2X terminal
1X module
1X connection cable
2X terminal
FAQ.
After connecting the GM 3, the LED blinks fast when powered on, if your MD 380 PTT presses, the COS LED will light up, then you have to use the debug port to check the BER, or in the pi-star panel, adjust the RX_R BER to <=2%, then test in Parrot you can hear yourself and the PTT LED lights up, test done! It's easy, I tested it many times.
After connecting the GM 3, the LED blinks fast when powered on, if your MD 380 PTT presses, the COS LED will light up, then you have to use the debug port to check the BER, or in the pi-star panel, adjust the RX_R BER to <=2%, then test in Parrot you can hear yourself and the PTT LED lights up, test done! It's easy, I tested it many times.
FAQ:What mode did you test?
The DMR or YSF or P25 I tested is the same.
FAQ:Do I need to use the MMD VMCal program for testing?
If the test fails, it is best to use MMD VMCal to test the GM3XX TX-> move function. the GM3XX RX-> function is easy to check just the cos (receive signal) LED and the mode LED, if both LEDs are on, the GM3XX Rx is working!
FAQ:Do I need to change the MMDVM. ini->TX invention and RX invention, which is also imported, in MMDVMCal TX test mode, you can press I to fabricate TX,to make sure if your GM3xx is fabricated successfully.
The DMR or YSF or P25 I tested is the same.
FAQ:Do I need to use the MMD VMCal program for testing?
If the test fails, it is best to use MMD VMCal to test the GM3XX TX-> move function. the GM3XX RX-> function is easy to check just the cos (receive signal) LED and the mode LED, if both LEDs are on, the GM3XX Rx is working!
FAQ:Do I need to change the MMDVM. ini->TX invention and RX invention, which is also imported, in MMDVMCal TX test mode, you can press I to fabricate TX,to make sure if your GM3xx is fabricated successfully.
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