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BridgeCom Official Blog

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  • September 17, 2015 Tim King

    How to Use RoIP in Commercial Communication

    "Hey boss, I tried to call Jimmy on the radio but he didn't respond. I called him on his cell phone and he said he didn't get the radio call. Can you fix our radios to help us talk when we need to?"


    Little Construction Guy on RadioHow can the boss help out Jimmy, Frank and the rest of the radio users communicate when necessary? The solution is as simple as RoIP (Radio over IP). 
    "Frank, I'll see what I can do to help you and Jimmy communicate. Do you know anything about this RoIP communication deal?"

    What is RoIP? In our past blog, Radio over IP - What is it?, we defined Radio over Internet Protocol (RoIP) as a two-way communication method which involves trans-reception of radio communication signals over internet protocol (IP).

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  • September 9, 2015 Tim King

    BridgeCom Systems Adds Pinterest

    The world of Pinterest has come to BridgeCom Systems. We will be adding product photos, videos, install photos and much more to our Pinterest page.  "Now you can easily pin BridgeCom photos and other content to our Pinterest page. We...

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  • Why 220 MHz for Amateur Ham Radio, V2.0?
    June 19, 2015 Ron Kochanowicz

    Why 220 MHz for Amateur Ham Radio, V2.0?

    220 MHz amateur radio boasts of a long and colorful history, affording it a special place in the hearts of amateur radio enthusiasts. 

    Conceptually, amateur radio repeaters are not too different from public safety devices (fire, first response, police) or those in use at federal, business or military services. However, they are often assembled (power supplies, transmitter, receivers, antenna etc.) or commercially packaged to operate only within amateur RF (radio frequency) bands, like 222-224.995 220 MHz band.

    History

    The Federal Communications Commission (FCC) approved VHF bands as early as 1938, one of them being 1.25 meters (224 MHz) band. Amateur radio activity spiked rapidly in 1960s and 1970s, as 2m and 70cm bands swiftly rose to prominence in the hobby. The commercial spectrum of the VHF and UHF bands became the backbone of emergency service communications like police, fire and ems. The 1.25m band however, escaped the commercial popularity - partly due to lack of enough commercial frequency allocations. Add to it, commercial radio equipment for the band has been scarce. Amateurs willing to go live on this band have had to build their own equipment or buy specialized amateur radio equipment from designated manufacturers.

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  • Duplexer and Repeaters: Basic Information
    May 21, 2015 Tim King

    Duplexer and Repeaters: Basic Information

    Duplexers and Repeaters Some Basic Information BY ROBERT A. LEHNING*, WA2YSJ All across the country there are many amateur repeate  stations operating on 2 meters, 220  and 440 MHz, and to some extent on 1.2 GHz.  Several  modes of operating such as FM, ATV, and packet (digital) have also become...

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