Description
Raspberry Pi Duplex Board Hotspot Board Kit P25 DMR YSF for Raspberry pi MMDVM Mobilepower
Features
1、Pi-star general configuration for MMDVM_DUPLEX 2、Set Controller Mode: Duplex Repeaters or Simple 3、Radio Frequency: Freq: 144-148, 219-225, (primary band) 420-475, 842-950 4、Duplex Mode: Example: RX:438.000000 TX:433.000000 5、Duplex Mode: Example: RX:145.000000 TX:433.000000 6、Simplex Mode: Example: RX:438.000000 TX:438.000000 7、Radio/Modem Type: STM32-DVM/MMDVM_HS-Raspberry pi Hat (GPIO) or any other (GPIO board) 8、Options: (not required now, some older boards need to be set) 9、Admin-/u003eExpert-/u003eEdit MMDVMHOST-/u003eRXOFFSET/u003d0 TXOFFSET/u003d0 (default value in pistar) 10、(Update: 2019/2 New 3225 TCXO so offset is 0 ) Update new firmware: (pi-star / Expert / ssh access / user :pi-star pass:raspberry) 11、sudo pistar-mmdvmhshatflash hs_dual_hat The default BER is less than 5% and the default offset is 0. If the BER is greater than 5%, it can be corrected by offset as long as the signal can be received.
Specification
This link is only available for Mini Duplex MMDVM boards. Setting up Pi-star software and raspberry hardware (rpi 0-3) New pi4b requires removal of Right Socket.
Features:
Pi-star general configuration for MMDVM_DUPLEX
Set Controller Mode: Duplex Repeaters or Simple
Radio Frequency: Freq: 144-148, 219-225, (primary band) 420-475, 842-950
Duplex Mode: Example: RX:438.000000 TX:433.000000
Duplex Mode: Example: RX:145.000000 TX:433.000000
Simplex Mode: Example: RX:438.000000 TX:438.000000
Radio/Modem Type: STM32-DVM/MMDVM_HS-Raspberry pi Hat (GPIO) or any other (GPIO board)
Options: (not required now, some older boards need to be set)
Admin->Expert->Edit MMDVMHOST->RXOFFSET=0 TXOFFSET=0 (default value in pistar)
(Update: 2019/2 New 3225 TCXO so offset is 0 )
Update new firmware: (pi-star / Expert / ssh access / user :pi-star pass:raspberry)
sudo pistar-mmdvmhshatflash hs_dual_hat
The default BER is less than 5% and the default offset is 0. If the BER is greater than 5%, it can be corrected by offset as long as the signal can be received.
Specifications:
Name: Hotspot Board
Material: printed circuit board
Package size: 80 * 50 * 20mm / 3.15 * 1.97 * 0.79in
Package weight: 10g / 0.35ounce
Packing List:
1 * Hotspot Board
Package List
1 * Hotspot Board
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Fruugo ID:
351835003-766550968
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EAN:
9308869048395
Product Safety Information
Please see the product safety information specific to this product outlined below
The following information is provided by the independent third-party retailer selling this product.
Product Safety Labels
Safety Warnings:
Please do not allow your child to handle this product alone to avoid swallowing or other injuries; adult supervision is recommended.
Delivery & Returns
Dispatched within 2 days
Shipping from China.
We do our best to ensure that the products that you order are delivered to you in full and according to your specifications. However, should you receive an incomplete order, or items different from the ones you ordered, or there is some other reason why you are not satisfied with the order, you may return the order, or any products included in the order, and receive a full refund for the items. View full return policy
