Tower Mounted Amplifier - Drawbacks/pitfalls

Drawbacks/pitfalls

  1. If the received signal is not weak, installing a TMA will not deliver its intended benefit.
  2. If the received signal is strong enough, it may cause the TMA to create its own interference which is passed on to the receiver.
  3. In some mobile networks (e.g. IS-95 or WCDMA - aka European 3G -), it is not simple to detect and correct unbalanced links since the link balance is not constant; link balance changes with traffic load. However, other mobile networks (e.g. GSM) have a constant link, therefore it is possible analyse call records and establish where TMAs are needed.
  4. There might be practical room restrictions, visual, or structural weight restrictions to install a TMA at the top of a phone mast.
  5. If the TMA fails, it may render the system unusable until serviced, unless it can be bypassed.
  6. Servicing TMAs is harder than servicing receivers - and thus more expensive - as the TMA may be dangerously near (near field) of the antenna and high up in a tower. The receiver may alternatively be housed in a cabinet or hut at the base of the tower.

Read more about this topic:  Tower Mounted Amplifier

Famous quotes containing the words drawbacks and/or pitfalls:

    “France has neither winter nor summer nor morals—apart from these drawbacks it is a fine country.”
    —Mark Twain [Samuel Langhorne Clemens] (1835–1910)

    “Because relationships are a primary source of self-esteem for girls and women, daughters need to know they will not lose our love if they speak up for what they want to tell us how they feel about things. . . . Teaching girls to make specific requests, rather than being indirect and agreeable, will help them avoid the pitfalls of having to be manipulative and calculating to get what they want.”
    —Jeanne Elium (20th century)