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  • #55578 Reply

    Dear all:
    Can I install TMA (Tower Mounted Amplifier ) in MOTOROLA,if I can ,please provide me:which kind of TMA ,what is the setting ,Does it support GSM900,EGSM,and 1800.
    If I cann’t what is the best solution to support Up link in MOTOROLA.
    Many thanks for all

    #55579 Reply

    Hi Ameer,

    a TMA is always compatible with any kind of equipment. As long as there is a cable between the BTS and the antenna 🙂

    So here is how it works:

    TMA is inserted next to the antenna: the BTS feeder is connected to the TMA, then the TMA is connected to the antenna thanks to a shorter feeder.

    The O&M of the TMA is ensured by an external device that you will locate in the BTS shelter or cabinet. The O&M trans is done thanks to the BTS feeder (T bias).

    Perhaps Motorola BTS O&M already supports a specific brand of TMA, in which case the external device I was talking about is not needed anymore. There is a standard protocol to control a TMA called AIS or AISG (if i remember correctly… ok, i think I forgot the exact acronym 😉 ).

    #55580 Reply

    motorola is not a member, so i doubt they support this protocol.

Viewing 3 posts - 1 through 3 (of 3 total)
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