Top Mmdvm Duplex Reviews

AURSINC MMDVM Hotspot Board + Antenna Support UHF VHF Support P25 DMR YSF DSTAR NXDN POCSAG for Raspberry Pi-Zero W, Pi 3 (OLED Board)

  • MMDVM hotspot supports UHF VHF, frequency range: 144MHz-148MHz, 420MHz-475MHz, 842MHz-950MHz (depending on ADF7021 and TCXO, HAT firmware amateur radio brand license restrictions).
  • AURSINC hotspot board supports Raspberry Pi 3B, 3B +, Pi ZERO, compatible with NanoPi NEO, Orange Pi, compatible with BlueDV (requires USBtoTTL or Bluetooth model).
  • Hotspot board saves electricity, High quality TCXO, stable, low BER. Support MMDVM mode DMR / YSF / P25 / NXDN / DSTAR / POCSAG. Support online upgrade, User-friendly OLED and Nextion special design location, reserved for additional installation of Bluetooth modules.
  • If the Raspberry fails to connect the hotspot board, please try update the firmware of the hotspot board by conducting the command: sudo pistar-mmdvmhshatflash hs_hat-12mhz.
  • Compatible with P4 settings:since our mmdvm board is defautly setup for Pi-Zero W, Pi 3. and if you do want to connect it with your Pi 4, you could try below methods. PICK ONE. Method 1: Remove the R1 resistance of the hotspot board(single/dual).
  • Method 2: Cut off the 2 Raspberry Pi pin headers on the corners of the board ( pick one to operate on your MMDVM board, refer to the product image for the R1 and 2 pin headers locations).
Check Stock

MMDVM Duplex Hotspot Module Dual Hat V1.3 Support P25 DMR YSF NXDN DMR Slot 1 + Slot 2 for Raspberry pi with USB Port (Without OLED)

  • if the board fails to work on duplex mode, please run the upgrade command: sudo pistar-mmdvmhshatflash hs_dual_hat.
  • HIGH PERFORMACE: 32-bit ARM processor, up to 10mW RF power, fully tested every piece..
  • WIDELY COMPATIBLE: Supports DMR, P-25, D-Star and System Fusion.
  • WORK with RASBERRY Pi: Mounts cleanly on current Raspberry Pi including the Pi Zero , NOT compatible with Rasberry Pi 4..
  • Update new FW: (pi-star / expert / ssh access / user :pi-star pass:raspberry) then run sudo pistar-mmdvmhshatflash hs_dual_hat set Jumper BOOT0=1,BOOT1=0 and soler JP1 First! After upgraded finished, disconnect JP1.
  • FREQUENCY: Radio Frequency : Freq:144-148,219-225, (Main Band) 420-475,842-950 NOTE: TX =0, RX=0. Modem select: STM32-DVM/MMDVM_HS-Raspberry pi Hat(GPIO) or any other (GPIO board).
Check Stock

All-New Duplex DMR Hotspot Ehternet Port Assembled Radio Station WiFi Voice Modem Support DMR Dstar YSF P25 Fusion Antenna Raspberry Pi Model 2B Two Colors OLED 2 TimeSlots

  • MMDVM hotspot supports D-STAR DMR YSF P25 NXDN POCSAG, enables the different mode of digital two way radio to communicate with each other (YSF2DMR / YSF2NXDN / YSF2P25 / DMR2YSF / DMR2NXDN) and works great with UHF..
  • Two Time Slots: Support receive in one Frequency and transfer in another frequency using Duplex mode.
  • Upgraded Network: support wifi wireless connection and wired connection to the router directly..
  • Power Supply: 5V, Mobile charger or a USB cable connected to your computer or laptop..
  • Best customer services: fully-assembled. The firmware is pre-loaded. Contact us if any question, we will reply within 6 hours. 73.
Check Stock

MMDVM Duplex Hotspot Module Dual Hat with 0.96 OLED Display V1.47 Support P25 DMR YSF NXDN DMR Slot 1 + Slot 2 for Raspberry pi (with OLED)

  • if the board fails to work on duplex mode, please run the upgrade command: sudo pistar-mmdvmhshatflash hs_dual_hat.
  • HIGH PERFORMACE: 32-bit ARM processor, up to 10mW RF power, fully tested every piece..
  • WIDELY COMPATIBLE: Supports DMR, P-25, D-Star and System Fusion.
  • WORK with RASBERRY Pi: Mounts cleanly on current Raspberry Pi including the Pi Zero , NOT compatible with Rasberry Pi 4..
  • EASY OPERATION: The firmware is pre-loaded and is easily upgraded via software. Onboard LEDs showing status (Tx,Rx,PTT,Mode).
  • FREQUENCY: UHF 433-900MHz, VHF 144-220 MHz. NOTE: TX =0, RX=0. Modem select: STM32_HS_GPIO.
  • To leave the screen on all the time In Pi-Star configuration, ensure you have "OLED Type 3" in the display type field at the top of the page, set Port to: modem. Also, in the Expert section, go to MMDVM host, and scroll down to the OLED section. Make sure LogoScreensaver is set to 1. This leaves the screen on all the time. Otherwise, it goes blank when idle.
Check Stock

C4Labs JRZ-1SB case Compatible with Raspberry Pi Zero/Zero W & JumboSPOT MMDVM & Waveshare UPS Hat (Black Ice)

  • Full body coverage for Raspberry Pi, Battery Hat, JumboSPOT or LoneStar N5BOC MMDVM Simplex and OLED screen (not waterproof) Note: Raspberry Pi Zero 2 has not been tested for heat issues..
  • Enough room for .96″ OLED screen to be mounted directly to JumboSPOT or LoneStar N5BOC MMDVM Simplex by customer.
  • Cut outs for easy access to SD card and camera ports.
  • Pin-hole access to boot and reset buttons on top of case.
  • No components are included. This is a Case Kit and assembly is required..
  • Designed and Crafted by local artists in Tacoma, WA USA.
  • Comes with 2 tops: one with antenna hole and one without.
  • Compatible with Lonestar N5BOC Board version 03/23/2019 1V8-1.
Check Stock

MMDVM Hotspot Board + Aluminium Case Support UHF VHF Support P25 DMR YSF DSTAR NXDN POCSAG for Raspberry Pi-Zero W, Pi 3 (Raspberry Pi NOT Included)

  • Save electricity, High quality TCXO, stable, low BER. Note: This is NOT a completed or assembled Hotspot, it is just MMDVM Board with Aluminum case..
  • Support Raspberry Pi 3B, Pi ZERO, compatible with NanoPi NEO, Orange Pi, compatible with BlueDV (requires USBtoTTL or Bluetooth model).
  • Support VHF/UHF, frequency range: 144MHz-148MHz, 420MHz-475MHz, 842MHz-950MHz (depending on ADF7021 and TCXO, HAT firmware amateur radio brand license restrictions).
  • Support MMDVM mode DMR / YSF / P25 / NXDN / DSTAR / POCSAG.
  • Support online upgrade, User-friendly OLED and Nextion special design location, reserved for additional installation of Bluetooth modules.
Check Stock

C4Labs JRPi-3.5NSX Nextion Screen Case for Raspberry Pi 4B & 3B+, Jumbospot MMDVM, and 3.5\ Nextion Screen (Included)

  • If you have a Zumspot Brand MMDVM Board there is a new case model: ZRPI-3.5NSX.
  • For Raspberry Pi 4B, 3B+, 3B, 2B, and B+ (not included), JUMBOspot (a generic Chinese MMDVM board - Not included), and a 3.5″ Enhanced Nextion Touchscreen (included). Carefully designed to precisely fit these components using Laser cut components and stainless steel hardware. Full body coverage for components (not waterproof). Heat sinks and rubber feet included..
  • *Please note that connecting the Nextion screen to your set-up may require additional soldering of pins or wires not covered in these case instructions..
  • Note: This case does not have a fan and the Pi-4 is known to run hot under use. It is not recommended to run the Pi-4 at full power for extended periods as performance problems can arise at higher temperatures.* The new inner layers have been designed to fit the Pimoroni Fan SHIM (not included).
  • Engineered and manufactured with Pride in Tacoma, WA USA.
Check Stock

C4Labs ZRPi-3.5NSX Nextion Screen Case – Raspberry Pi 3 B+, ZUMspot MMDVM, and Enhanced 3.5\ Nextion Screen (Included) ~ Black Ice

  • If you have a Generic Chinese MMDVM Board (Jumbospot) there is a new case model: JRPI-3.5NSX.
  • For Raspberry Pi 4B, 3B+, 3B, 2B, and B+ (not included), ZUMspot Brand MMDVM Board (Not included), and a 3.5" Enhanced Nextion Touchscreen (included). Carefully designed to precisely fit these components using Laser cut components and stainless steel hardware. Full body coverage for components (not waterproof). Heat sinks and rubber feet included..
  • *Please note that connecting the Nextion screen to your set-up may require additional soldering of pins or wires not covered in these case instructions..
  • Note: This case does not have a fan and the Pi-4 is known to run hot under use. It is not recommended to run the Pi-4 at full power for extended periods as performance problems can arise at higher temperatures.* The new inner layers have been designed to fit the Pimoroni Fan SHIM (not included).
  • Engineered and manufactured with Pride in Tacoma, WA USA.
Check Stock

TRENDnet 8-Port 10G Switch, 8 x 10G RJ-45 Ports, 160Gbps Switching Capacity Rack mountable, 10 Gigabit Network Connections, Lifetime Protection, Black, TEG-S708

  • DEVICE INTERFACE: 8 x 10GBASE-T Ports (100Mbps/1Gbps/2.5Gbps/5Gbps/10G).
  • 10 GIGABIT PORTS: This 8-port 10G switch offers eight 10G ports with 160Gbps switching capacity for high-speed network connections providing a cost-effective solution in adding 10G link capability..
  • 2.5/5G SUPPORT: The network switch supports 2.5G/5GBASE-T RJ-45 multi-gigabit speeds capable of up to 2.5Gbps or 5Gbps over existing Cat5e or better cabling..
  • DATA TRANSFER RATE: Ethernet: 10 Mbps (half duplex).
  • RACK MOUNTABLE DESIGN: The sturdy metal 10G Ethernet Switch has a rack mountable design for greater installation flexibility..
Check Stock

Yealink Teams Certified Speakerphone Wireless Bluetooth Speaker with Full Duplex Microphone for Conference Meeting CP700 CP900 Noise Reduction Home Office 360° Voice Pickup

  • FULL-DUPLEX SPEAKERPHONE: What’s the Difference Between Half Duplex and Full Duplex ？ a full duplex speakerphone setup allows multiple users to communicate simultaneously，a half duplex system only allows one party to speak at any given time. Just like a walkie-talkie. Yealink CP700&CP900 support built-in full-duplex microphone . so calls sound their best on both ends compare with half duplex speakerphone of another brand in the market ..
  • SPEAK SMOOTH & HEAR CLEAR：More than 2,000,000 users have a good conference experience with YEALINK, Redefine Your Workspace. 2 built-in noise-canceling microphones of YEALINK Bluetooth speakerphone set in a 360° array realize voice pickup could work for a business conference room of 6.5 feet*6.5 feet, and full-duplex audio solution ensures accessible and clearly meeting experience..
  • SIMPLE SETUP & STABLE CONNECTION---YEALINK conference speakerphone could be connected via USB, Bluetooth, dongle without any extra IT required or drivers. Not only connect YEALINK conference speaker in Windows, macOS, plugging USB, but also smartphone, iPad, Samsung S7+ tablet work well by Bluetooth. YEALINK speaker and microphone for computer also have been Certified by Zoom, Microsoft Teams, whatsapp, Skype, etc.
Check Stock

TRENDnet 24-Port Gigabit Switch, TEG-S25, 24 x Gigabit RJ-45 Ports, 48Gbps Switching Capacity, Fanless Design, Metal Enclosure, Internal Power Supply, Lifetime Protection, Black

  • DEVICE INTERFACE: 24 x Gigabit RJ-45 ports.
  • SWITCHING CAPACITY: This 24-port gigabit switch has a 48Gbps switching capacity with a forwarding rate of 35.71Mpps (64-byte packet size).
  • DATA TRANSFER RATE: Ethernet: 10 Mbps (half duplex).
  • KMOUNT DESIGN: Sturdy metal housing with rackmount brackets included for greater installation flexibility and well suited for 19” 1U rack installations.
  • FANLESS DESIGN: The network swich fanless design lowers energy consumption and eliminates operating noise..
Check Stock

Panasonic KV S2087 Sheetfed Document Scanner, 600 dpi Optical/1200 dpi Interpolated, Up to 85 ppm Simplex/Up to 170 ipm Duplex Speed, Up to 200 Sheets Feed Tray

  • Panasonic KV S2087 Sheetfed Document Scanner - Quick Installation Guide - Power Cord - USB Cable - CD-ROM - Panasonic 3 Year Warranty.
  • Scanning Method: Color CIS (600 dpi) / Black or White Background.
  • Scanning Resolution: 100 - 600 dpi (1 dpi step)1200 dpi (Interpolated)Optical: 300 dpi / 600 dpi (Automatic switch).
  • Scanning Speed: Binary Speed Portrait (200 / 300 dpi):Letter:Simplex: 85 ppm.
  • Duplex: 170 ipmColor Speed Portrait (200 / 300 dpi):Letter:Simplex: 85 ppm.
Check Stock

Yealink Bluetooth Speakerphone Conference Microphone Teams Certified CP700 USB Speaker Full Duplex Noise Reduction Algorithm Home Office 360° Voice Pickup (CP900, with Dongle)

  • FULL-DUPLEX SPEAKERPHONE: What’s the Difference Between Half Duplex and Full Duplex ？ a full duplex speakerphone setup allows multiple users to communicate simultaneously，a half duplex system only allows one party to speak at any given time. Just like a walkie-talkie. Yealink CP700&CP900 support built-in full-duplex microphone . so calls sound their best on both ends compare with half duplex speakerphone of another brand in the market ..
  • SIMPLE SETUP & STABLE CONNECTION—YEALINK conference speakerphone could be connected via USB, Bluetooth, dongle without any extra IT required or drivers. Not only connect YEALINK conference speaker in Windows, macOS, plugging USB, but also smartphone, iPad, Samsung S7+ tablet work well by Bluetooth. YEALINK speaker and microphone for computer also have been Certified by Zoom, Microsoft Teams, whatsapp, Skype, etc.
  • IDEAL SOLUTION OF NOISE CANCELING—Yealink Bluetooth speakerphone could eliminate background noise whether working in a shared or public workspace or office. Common noise at work such as air conditioning, mouse or keyboard click, desk and chair friction sound could be reduced efficiently with speaker phone so that the far-end attendees can enjoy the best communication. This mode is optional in YEALINK....
Check Stock