CTI Products TSAM Transmitter Steering & Audio Matrix - Manual (Page 61)

TSAM Installation and Maintenance Rev. 2.10 Chapter 5
CTI Products, Inc. Setting Programmable Options
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5.8.4 Instant Update / End of Receive Update
If the Smart-Steer Integrated vote mode is selected, the TSAM automatically forces the End of Receive
(EOR) Update mode.
If the First Receive steering is selected, you have the option of using Instant Update or End of Receive
Update modes:
First RX / Integrated Vote steering rules (F/I) = (I) I : F
Instant Update or End of RX Update (I/E) = (I) I : I
5.8.5 Fast Steer on C1PTT
This option is described in section 2.2.4. It is recommended that this is option is always turned ON.
5.8.6 Smart-Steer     Steering Mode
The First RX steering method works well in many applications, but is limited by the fact that it uses the
site which a portable/mobile first votes. If the portable/mobile later votes a better site, the First RX
steering method will not take this into account.
To address this limitation, some steering systems make a steering decision based strictly upon the last
receiver voted. This method does not always choose the best receiver, since the last receiver voted could
just have the longest squelch tail or slowest PL decoder. This may not be the best receiver. In the case of
dual-level squelch systems, a receiver with a poor signal will have a longer squelch tail than a receiver with
a strong signal. In this case, the last receiver to quiet could be the one with the worst signal. The TSAM
overcomes this problem by using the Smart-Steer
 method. This picks the receiver voted longest within
the past x seconds, where x is a programmable time period called the integration time.
The TSAM determines the last voted receiver as follows: The TSAM continuously integrates the vote
signals over the programmable integration time. At the end of a portable/mobile transmission, the TSAM
steers to the site that was voted the most for the last x seconds.
5.8.6.1 Integration Time
Integration time is the amount of time (in tenth second increments) over which the RX VOTED Inputs are
integrated. The last Integration Period seconds of the RX VOTED inputs are integrated. The integration
period ranges from 0 to 255 tenth second increments (0 to 25.5 seconds).
5.8.7 Simplex PTT Release Mask Timer Programming
The Simplex PTT Release Mask Timer can be programmed from 0 to 2500 milliseconds, in 1 millisecond
increments. Numbers outside the range of 0 to 2500 will produce an out of range error, and you will be
prompted again to enter a value in the correct range.
To determine the proper settings for your system, measure the time from release of C1PTT until all
receiver voted inputs go inactive. Set the timer for 50 to 100 milliseconds greater than this value.