Filter Threshold Constant T1

(Trunking Wide, Filter Constants)

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Selects a value that creates a timed window that Received Signal Strength (RSS) samples must fall within to be considered valid. This window is centered on the selected Received Signal Strength Indication (RSSI) Filter Constant K1 value (see also the RSSI Thresholds fields). The window size is twice the value of the threshold constant. This T1 constant is used when less than 8 seconds elapses between Received Signal Strength Indication (RSSI) samples. This selection can apply for all Trunking Systems and therefore to all Trunking Personalities.

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Modifications of Filter Constants should only be performed by a Motorola Field Technical Representative.

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When the radio is model / option capable.

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Minimum

Maximum

0 (hex)

FF (hex)

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The Filter Threshold Constants (T1, T2, T3) are hexadecimal numbers ranging from 0 to FF and should only be modified in accordance with the following:

( 00 <= T1 <= T2 <= T3 <= FF )

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T1, T2, and T3 create a window that Received Signal Strength (RSS) samples must fall within to be considered valid. The window is centered on the current RSSI Filter Constant value (K1, K2, or K3). The window size is twice the value of the threshold constant.

  • T1 is used when less than 8 seconds elapse between RSSI samples

  • T2 is used when 8 to 16 seconds elapse between RSSI samples

  • T3 is used when more than 16 seconds elapse between RSSI samples

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