Solutions by Industry

Optimize over-the-air bandwidth usage with WMX modem status

Raveon’s WMX protocol is the preferred way to communicate over-the-air in advanced or tightly-integrated configurations. As of version D4 of the protocol, it is now possible to closely monitor message queuing, transmission and acknowledgement. This allows bandwidth usage to be optimized for the communication application. Bit 5 in the WMX control field indicates whether the […]

Filed under: Data Radio Technology, System Design | Posted on July 31st, 2013 by Adam Hickerson | No Comments »

Coax Cable Comparison

The following charts compare various type of coaxial cable used in VHF and UHF data radio systems.  All coax cable has a certain amount of signal loss.  When an antenna is connected to a radio modem using any type of coax cable, the transmit signal is attenuated as it passes through the cable, so the […]

Filed under: Data Radio Technology, Installation Information | Posted on February 22nd, 2011 by John Sonnenberg | No Comments »

How to Obtain an FCC License for Narrow-band Data Radio

Obtaining an FCC license to use a narrow-band radio channel is not difficult at all.  In fact, the FCC has listed over 300 ,000 license holders in the Land Mobile Radio service alone. Raveon’s M7 radio modem operate on radio frequencies that are regulated by the Federal Communications Commission (FCC).  In order to transmit on […]

Filed under: Data Radio Technology, Industry information, Installation Information | Posted on December 1st, 2010 by John Sonnenberg | No Comments »

TDMA Transmission Overview

TDMA, or Time-Division-Multiple-Access is a very effective way of allowing a lot of radios to share one radio channel.  Used extensively in GSM cellular and APCO public-safety systems, TDMA excels at allowing quick and reliable access to radio channels.  Raveon’s M7 series of GPS tracking radios use TDMA to send GPS position information, status, and […]

Filed under: Data Radio Technology | Posted on March 24th, 2010 by John Sonnenberg | No Comments »

Dual Bandwidth Capable. Wide and narrow-band explained.

Raveon Technologies data radio modems can have either wide band IF filters, which are used on 25kHz or 30kHz spaced channels, or narrow-band IF filters, which are used on 12.5kHz spaced channels.  As the picture above illustrates, it is possible to have twice the number of radio channels, when everyone uses 12.5kHz narrow band radios.  […]

Filed under: Data Radio Technology | Posted on January 26th, 2010 by John Sonnenberg | No Comments »