About SMRs

  • SwapMyRigs (SMR) is a product designed and manufactured by AE4S, LLC. After many years of frustrating mobile radio installations, Bill Jordan (AE4S) believed there must be a better way than routing multiple cables from trunk-mounted radios to dash-located controls, microphones, and speakers.

  • Each transceiver model, even from the same manufacturer, seemed to use different con­nec­tors and connecting cables. Changing radios always seemed to involve removing the old cables and running new ones.

  • In recent years, manufacturers have tended to connect components using common registered jacks. Registed jacks originated in the 1980s after the break­up of AT&T. Standardized jacks were required to connect a variety of com­mu­ni­cations devices both to each other and to telephone service providers.

  • Using registered jacks, perhaps a single cable could connect many man­u­fac­turers' mobile transceivers to their remotely located components. The cable should:
    1. Have enough conductors to match the inputs and outputs of most mobile radios;
    2. Be flexible and small enough to route easily through a car or truck's interior;
    3. Have conductor resistance not exceeding that of manufacturers' proprietary cables;
    4. Be readily available and not require special adapters or proprietary input and output jacks; and
    5. Be reasonably priced.

  • A suitable cable should terminate so that it appears at each end as either the radio itself or the remote components. The radio and its remote components should see each other as if directly connected.

  • A 15-conductor VGA cable terminated by two SMRs meets these requirements.


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