![ZETRON 748 Скачать руководство пользователя страница 207](http://html1.mh-extra.com/html/zetron/748/748_technical-manual_3548519207.webp)
Feature Set Reference
025-9368H
193
Initial TX Hold Time - TX Hold Time
When the Model 748 decodes an enabled sub-audible tone or code or
Carrier squelch
repeat
is
“Enabled”, it keys the transmitter immediately and allows repeat audio. To save the transmitter from
keying and unkeying during mobile fading and regular conversation, the transmitter is “held” up for
a programmed period of time after decode and/or carrier lost. If the same sub-audible is detected
again during the hold time, the transmitter will remain keyed until decode and/or carrier goes away
and the transmit hold timer expires.
The first time the Model 748 keys the transmitter based on an enabled sub-audible tone/code, the
Initial TX hold time
is used to set the transmit hold time. All subsequent times it detects the same
enabled sub-audible tone/code before the transmit hold time expires, the
TX hold time
of the sub-
audible tone/code is used to set the transmit hold time.
How to program it:
Access the Model 748 through your direct connected PC or terminal, or remotely from your PC
connected to a modem via the Model 748's internal modem.
Initial TX hold time
Once connected to the Model 748 and the Main Menu is on the screen, type “2” and press
ENTER
,
and the Repeater Panel Menu will appear. Type “1” and press
ENTER
, the Repeater Panel System
menu will be displayed. Select the item for
Initial TX hold time
and press
ENTER
. The current
setting for
Initial TX hold time
will appear along with a message to enter the new value and the range
of values you may enter. Enter the new user number and press
ENTER
when you have finished.
The default setting for
Initial TX hold time
is 2000 milliseconds.
TX hold time
Once connected to the Model 748 and the Main Menu is on the screen, type “2” and press
ENTER
,
and the Repeater Panel Menu will appear. Type “2” and press
ENTER
, the Repeater Panel User
menu will be displayed using the currently selected user's data. Select the User number you wish to
program (see “User Range” later in this section). Select the item for
TX hold time
and press
ENTER
.
The current setting for
TX hold time
will appear along with a message to enter the new value and the
range of values you may enter. Enter the new user number and press
ENTER
when you have
finished.
The default setting for
TX hold time
is 2000 milliseconds.
TX Hold time
is supported by block or
range programming. See “user Range” later in this section for details.
Application note:
It can be useful to set
Initial TX hold time
to be a longer duration (2 - 4 times) than the per user
TX
hold time
. This gives the called dispatch radio a chance to respond.
Содержание 748
Страница 2: ......
Страница 68: ...Operation 54 025 9368H Notes...
Страница 110: ...Programming 96 025 9368H Notes...
Страница 216: ...Feature Set Reference 202 025 9368H Notes...
Страница 219: ...Repair 025 9368H 205 MODEL 7XX AUDIO BLOCK DIAGRAM 006 0077A...
Страница 225: ...Repair 025 9368H 211 MODEL 7XX CONTROL BOARD 008 9793D Schematic Sheet 1 of 5...
Страница 226: ...Repair 212 025 9368H MODEL 7XX CONTROL BOARD SCHEMATIC 008 9793D Sheet 2 of 5...
Страница 227: ...Repair 025 9368H 213 MODEL 7XX CONTROL BOARD SCHEMATIC 008 9793D Sheet 3 of 5...
Страница 228: ...Repair 214 025 9368H MODEL 7XX CONTROL BOARD SCHEMATIC 008 9793D Sheet 4 of 5...
Страница 229: ...Repair 025 9368H 215 MODEL 7XX CONTROL BOARD SCHEMATIC 008 9793D Sheet 5 of 5...
Страница 230: ...Repair 216 025 9368H MODEL 7XX CONTROL BOARD 702 9793D Silkscreen...
Страница 233: ...Repair 025 9368H 219 MODEL 7XX SINGLE E E CARD 008 9794A Schematic...
Страница 234: ...Repair 220 025 9368H MODEL 7XX SINGLE E E CARD 702 9794A Silkscreen...
Страница 236: ...Repair 222 025 9368H MODEL 4XB VOICE CARD 008 9236F Schematic...
Страница 237: ...Repair 025 9368H 223 MODEL 4XB VOICE CARD 702 9236F Silkscreen...
Страница 239: ...Repair 025 9368H 225 MODEL 4XB DIAL CLICK BOARD 008 9242E Schematic...
Страница 240: ...Repair 226 025 9368H MODEL 4XB DIAL CLICK BOARD 702 9242E Silkscreen...
Страница 254: ...Quick Reference 240 025 9368H Notes...
Страница 258: ...Specifications 244 025 9368H...
Страница 259: ...Specifications 025 9368H 245...