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Reply To: TA Not stable


Conducted a lot of tests about this over long time. The conclusion come to based upon all or combination of the following, TA can be influenced by:

a) different terrains/clutter
b) antenna tilt (service area)
c) reflection
d) internal/external MS antenna
e) etc

eg: 2400m from mast got TA fluctate TA22, TA24, TA25, TA28. Location in car park area with two-storey buildings surround MS. Antenna height on mast 21M. Mast located in semi rural area

eg: LOS 500m from mast on school buidling MS in open school playing fields TA1 and TA2

Maybe this helpful?