MMDVM digital walkie talkie modem (hotspot) box, using ordinary digital walkie talkies to achieve nationwide connectivity, solves the limitation of the connection distance of ordinary digital walkie talkies!
MMDVM motherboards all use imported components, temperature compensated crystal oscillators, stable long-term startup performance, and low error rate!
The new version of MMDVM duplex dual time slot digital hotspot board has optimized wiring, perfect component layout, low heat generation, fast heat dissipation, and other advantages, suitable for long-term startup work. The board reserves two (old and new version interfaces) OLED screen interfaces and one NXT serial port screen interface, allowing for more personalized screen installation in multiple directions! The small boards all use PCB antennas, and of course, external antenna interfaces are also reserved! Duplex boards have the advantage of dual time slots for DMR. All debugging parameters are carefully adjusted based on the DMR standard for each board. The calibrated DMR standard will be more stable in use, greatly improving sound quality reproduction. As for other standard users, they only need to slightly adjust the frequency offset to use the same stability. Interested users can leave a message,
This version needs to be used in conjunction with Raspberry Pi! (The default connection to the Raspberry Pi socket is soldered. For the convenience of DIY, the antenna base of the board is not soldered. If welding is required, please contact us in advance or leave a note. Thank you!)
Duplex boards have the advantage of dual time slots for DMR. All debugging parameters are carefully adjusted based on the DMR standard for each board. The calibrated DMR standard will be more stable in use, greatly improving sound quality reproduction. As for other standard users, they only need to slightly adjust the frequency offset to achieve better performanceDMR,D-Star,YSF(C4FM),P25,NXDN,POCSAG, the mode is used on the same stability, interested can leave a message!
Parameter introduction:
Frequency: U-band (420.000-434.900/438.100-470.00/)
Free antenna: center frequency 433MHz
ò¨ò¥Ù¼ãÒ:DMR,D-Star,YSF(C4FM),P25,NXDN,POCSAG
Power: 20 milliwatts
Size: The small plate is 65mm long * 30mm wide, and the large plate is 65mm * 56mm wide
Support Raspberry Pi:2B,3B,3B+,4B,5,ZeroWRaspberry Pi(Raspberry Pi can be installed directly, and the female row is welded)
Capable of supporting BlueDV for connecting computers with Type-C interface
Hot motherboard: simplex/duplex![](https://ae01.alicdn.com/kf/S383662316d0d4c5f82a257c1350fe6e1Q.jpg?width=3500&height=2449&hash=5949)
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