Introducing the RadioGrid RG-4 Radio Gateway.
NHRC Repeater Controllers and RadioGrid LLC are pleased to introduce the RadioGrid RG-4 Radio Gateway.
The RadioGrid RG-4 Radio Gateway
The RadioGrid RG-4 Radio Gateway allows Radio traffic to tunnel through the Internet using industry-standard VoIP technology.
Each RG-4 can control up to four repeaters or link radios. Each repeater or link radio can be linked to any other port on the RG-4, or, through the internet, to repeater or link radio ports on other RG-4 Radio Gateways. Any port can operate independently or be linked to one or more ports, on the same RG-4, another RG-4 on the same LAN, or to other RG-4s through public or private IP networks. Your network can support a very large number of radios, limited only by available network bandwidth.
The RG-4 is built around Asterisk open source PBX technology. Telephony integration is built-in, and fully integrated. Radios gatewayed through the RG-4 can be allowed to originate and receive VoIP telephone calls from your local network, and (with appropriate external hardware or by using an internet telephony provider) to and from the public telephone network. This means you can dial into your repeater or remote base from anywhere there is a telephone, or Internet access.
The RG-4 uses industry-standard protocols and CODECs. It can interoperate with a variety of hardware and software platforms, including Asterisk, SIP and IAX-based soft-phones, and a wide variety of VoIP Service Providers. The RadioGrid RG-4 can be easily managed and upgraded with its built-in web configuration utility.
Because the RG-4 is built with 100% open source software, the entire software platform can be modified by experienced end users. New functionality can be added by editing the supplied scripts, or writing new applications to run on the RG-4.
Security is built in. Connections to the RG-4 can be limited to specific IP addresses, hostnames, and/or require authentication using conventional passwords or asymmetric encryption, using RSA keys.
Specifications
VoIP Protocols
- SIP
- IAX2
VoIP CODECS
- G.711 (μ-law)
- G.726
100% Open Source
- uClinux, including Linux 2.6.16 kernel
- Asterisk 1.4.19
- RadioGrid drivers and scripts
- All source code is available
True Peer-to-Peer
- No central server required.
- Failure of one device will not take down the entire network.
Web-based setup and management
- No expensive proprietary programs to buy!
- Web-based Software Update keeps you current.
Digital Voice Storage
- All prompts are stored voice
- ID messages
- User-recordable messages
- record over phone
- record over the air
- record offline and upload
- Time-of-day messages (Internet access required to set the clock)
Hardware Features
- 500 MHz Blackfin processor provides about 1,000 integer MIPs
- 64 MB RAM
- 4 MB Flash memory
- 1 GB SD Card
- LEDs indicate radio interface status, PTT, COR, CTCSS
- All audio routing and mixing is performed in the digital domain.
- Digital potentiometers allow audio level adjustments without physical contact with the RG-4.
- Two RS-232 ports allow remote control of HF and other frequency-agile radios, including the popular Icom IC-706 and Yaesu FT-897.
- Radio interface is standard DB-9 connector.
Requirements
- Internet connection with at least 128 KBPS inbound and outbound. More (much more!) is better.
- Static IP address or reliable dynamic DNS service
- Ability to "port-forward" at the router if the RG-4 is on a private IP address.
- 12 volt DC power, at 200 mA.
- Computer with working web browser for configuration and setup.
NHRC / RadioGrid Synergy
About NHRC Repeater Controllers
About RadioGrid, LLC
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