SCH305 Portable Wireless ComHub


  • DECT7 wireless technology: Crystal-clear, interference-free and secure communication compared to Bluetooth or 2-way radio
  • Up to 5 channels for team use
  • Completely wireless and antenna-free: No external antennas to break, snag, or replace
  • 1,600 ft. line-of-sight range: Over five times the distance and 30 times the area of Bluetooth
  • Long-life battery: Operates up to 24 hours on a 4-hour charge; keeps the system ready for use when you need it
  • Radio Interface: Supports 2-way radio interface to over 400 mobile and portable radios (PR-Adapter sold separately)


The Sonetics wireless DECT7 Portable ComHub™ is the cornerstone of a completely portable team communication system. Housed in a rugged Pelican™ waterproof case, the battery-powered ComHub serves as a portable base station for up to 10 DECT and DECT7 wireless headsets in full duplex and up to 200 DECT7 wireless headsets in broadcast mode. Operating on the 1.9GHz DECT standard, the system provides secure, interference-free, full-duplex communication with Sonetics wireless headsets up to a 1,600-foot line-of-sight radius from the ComHub. For extended communication beyond the local work team, the ComHub interfaces with virtually any portable or mobile radio using a Sonetics radio interface cable. When connected to a radio, the ComHub supports push-to-talk communication through the radio from a properly configured Sonetics wireless headset. The ComHub is fully programmable to user specifications and is supplied with a water-resistant padded nylon bag for easy operation and transport.



  • Team Wireless DECT7, 1,600 ft. line-of-sight range
  • Multi-Channel DECT7, Up to 2 channels
  • DECT7 Broadcast Mode, Up to 100 users in listen-only mode



Our DECT7 wireless communication technology was created from years of experience in the field in the harshest environments.


  • Adjustable Volume Control – The ComHub has an adjustable input and volume control for interfacing with any external source.
  • Extreme Environmental Design – The ComHub has an IP-67 dust and water egress rating. This ensures that even when dropped into water, the ComHub will still be useable. We have also verified operation to -22F / -30C for extreme cold weather environments.
  • In ComHub Charging – The powered ComHub has charging circuitry built in and is ready to be charged from multiple sources. These include the supplied AC wall adapter and DC charging options from a variety of sources including most cars, trucks, and aircraft. Refer to specification for charging voltages and power requirements.
  • Long Battery Life – With over 24 hours of battery life on SCH305, the ComHub works whenever the user needs it. 12Hrs battery on the SCH310.
  • Radio PTT – The ComHub interfaces with any portable two-way-radio using the wired AUX input and our Portable Radio Adapter. All users are able to monitor the connected two-way-radio and selectively radio transmit. This effectively makes the ComHub infinity expandable to any communication network.
  • USB Programmable – The Wireless Bases in the ComHub have a built in USB port to configure your settings with a Windows PC. Many of the features may be customized and saved from the program.
  • User Replaceable Battery – The ComHub uses a replaceable battery. This allows the user to replace the battery at end of life.
  • Voice Prompts – The voice guided menu prompt system allows the user to make all adjustments.
  • Wired Line-in – The wired line-in is used to interface with cell phones and hand held radios. This gives the user another source for flexibility in their communication needs. The wired connection features a mono input and output with PTT output.
  • Wireless DECT7 Communications – The ComHub features a wireless DECT7 communication channel enabling full duplex communication, like a conference call, to others on the same channel. The Sonetics wireless DECT7 headsets connect with standalone Sonetics DECT7 ComHub. This DECT7 communication network gives the user up to 1600ft line-of-sight range to the wireless base.
  • Wireless DECT Backwards Compatibility – The ComHub is backwards compatible with the Sonetics first generation wireless DECT and DECT6 Wireless Headsets and Belt Packs with minimal loss in functionality.
  • Wireless DECT7 Broadcast Mode – The headsets may be paired into a listen only mode of operation, reducing power consumption considerably. This also allows many more headsets to be connected to a ComHub simultaneously. Pressing the Radio PTT button allows the headset to momentarily talk on any available open slot. A tone lets the user know when they can talk. Refer to the Wireless DECT7 ComHub manual for details.
  • Wireless DECT7 Encryption – using the latest digital encryption available, the DECT7 headsets ensure your conversations are private.
  • Wireless DECT7 Radio PTT or Intercom Only Selection – The headset may be configured to send a transmit signal to radios connected to the DECT7 ComHub. This is excellent for teams where some users will need radio transmit and others will not.
  • Wireless DECT7 Multi-Channel System – Up to 5 channels allows large teams to use separate channels for different activities while enabling users to change channels and become one communication team. SCH305 has 2 channels, SCH310 has 5 channels.
  • Wireless DECT7 Proximity Pairing – To enhance security, the Wireless ComHub will only pair to wireless DECT7 units in close proximity. This adds another layer of protection for users.
  • Wireless DECT7 Wide Band Audio – The wireless DECT7 communications are transmitted in a high definition wide band audio format. This allows greater intelligibility of the user and integration with voice activated control systems. This feature is defeatable to allow the user to be in a narrow band audio communication.



  • Length: 8.2in
  • Width: 6.1in
  • Height: 3.4in


Power Voltage

  • Input: 9 VDC to 16 VDC
  • Maximum Current Input: 2A @ 12V



  • IP-Rating: IP-67
  • Operating temperature: -40°F to 140°F / -40°C to 60°C
  • Storage temperature: -40°F to 140°F / -40°C to 60°C



  • FCC ID: V9N950325700V1
  • FCC Part 15: All Models


Industry Canada

  • IC UPN: 7895A-95032570


Common DECT Specifications

  • Carrier Spacing: 1.724 MHz
  • Time Slots: 2 x 12 (up and down stream)
  • Channel Allocation: Dynamic
  • Encryption: DECT Standard Cipher with 35-bit initialization vector
  • Audio Bandwidth: 300 Hz to 3.4 kHz, Narrow Band, G.726 compression; 50 Hz to 7 kHz, Wide Band, G.722 compression


DECT7 Region 1 Specific Specifications

  • Authorized for use in: Canada, USA
  • Frequency Bandwidth: 1919.808 MHz to 1930.176 MHz
  • Number of Carriers: 5
  • Total Time Slots: 60 in G.726(narrow band) / 30 in G.722(wide band)
  • Average Output Power: 4 mW
  • Maximum Output Power: 100 mW
  • Range (line of sight): 1600 feet maximum


View the product sheet:

SCH305/310 Product Sheet

Related Items