ZETRON 30 Worldpatch, Инструкция по эксплуатации

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Section 3. Operation
3-8
Simplex Timers
VOX Hold Time
Sets the VOX hold time, or the time that the VOX detection must be gone before
the telco side of the conversation is assumed over. This time should be set to the
minimum required as it slows down the conversation, but a time too short will
cause the conversation to flip to the mobile side prematurely. This timer only
affects the VOX simplex modes.
COR Hold Time
A hold time may be added to the receive carrier detector in simplex mode to
reduce the effects of “picket fencing.” When mobiles operate in fringe areas, or
through multi-path zones, the carrier may momentarily drop. When it does, the
patch will assume that the mobile unkeyed, and could key the transmitter to
allow the phone party to begin speaking. The COR hold time will allow the
receive audio to be muted to the phone party, but won’t assume the mobile has
unkeyed until the COR hold time expires.
Sample Rate
Sets the rate that the Model 30 will sample for carrier. This is NOT the amount of
time that it looks for carrier, but how often it looks. The sample rate timer is used
for simplex sampling, and simplex sampling w/VOX extend. Note that simplex
Intelligent mode does not use this timer.
Auto Sample Setup
This command allows the simplex sample window duration to be set
automatically for any radio. Once the command is executed, the Model 30 will
key the radio for 2 seconds allowing time to generate a DTMF digit into the
receiver using a DTMF equipped radio. The Model 30 will unkey the transmitter
and time how long it takes to decode the DTMF. This is saved as the sample
width time. Commands are available to increment and decrement the sample
window in 10-millisecond increments for fine tuning.
OPTIONS
A Digital Voice Option is available for premium simplex operation.