TKR-740
7
OPERATING FEATURES
Programmable Function
Description
Monitor Momentary
The QT/DQT decoder is momentarily disabled.
CW ID On
The CW ID is transmitted.
CW Message 1-8 On
The CW Message 1 to 8 is transmitted, respectively.
TOT Enable
The Time Out Timer is enabled.
TOT Disable
The Time Out Timer is disabled.
TOT Disable/Enable
The Time Out Time is toggled between enabled and disabled.
Hold Time Enable
The parameter of Repeat Hold Time is enabled.
Hold Time Disable
The parameter of Repeat Hold Time is disabled.
Hold Time Disable/Enable
The parameter of Repeat Hold Time is toggled between disabled and enabled.
Scrambler Off
Disables an installed optional voice scrambler board.
Scrambler On
Enables an installed optional voice scrambler board.
Scrambler On/Off
Toggles between enabling and disabling an installed optional voice scrambler board.
Digital Pager PTT
Accepts the external paging encoder
’
s PTT on AUX Input 2.
Digital Pager Data
Accepts the external paging encoder
’
s digital signal on AUX Input 3.
Reset
Resets to default condition set up by FPU.
None
No function.
●
The following Programmable Functions are output functions used to tell the condition of the TKR-740 to an external device.
●
The output functions can be assigned to only AUX Outputs as follows.
Programmable Function
Description
COR(Carrier Operate Relay)
This function becomes valid if an RF carrier is present.
TOR(Tone Operate Relay)
This function becomes valid if an RF carrier and specified QT/DQT are present.
TXS(TX Sense)
This function becomes valid when the transmitter is keyed.
RX Unlock
This alarm function becomes valid if the RX PLL circuitry becomes unlocked.
TX Unlock
This alarm function becomes valid if the TX PLL circuitry become unlocked.
Exciter Temperature
This alarm function becomes valid if the temperature of transmitter
’
s exciter
exceeds approximately 203
˚
F (95
˚
C) while transmitting.
Power Supply Upper Limit
This alarm function becomes valid if the DC power supply voltage exceeds the
preset point. The preset point is selected in the range of 13.9V to 15.9V.
Power Supply Lower Limit
This alarm function becomes valid if the DC power supply voltage becomes less
than the preset point. The preset point is selected in the range of 11.7V to 13.8V.
Exciter Power Upper Limit
This alarm function becomes valid if the transmitter
’
s RF Power output exceeds the
preset point in High power range.
Exciter Power Lower Limit
This alarm function becomes valid if the transmitter
’
s RF Power output becomes
less than the preset point in High power range.
RX Signal Detect (Above)
This function becomes valid if the receive signal strength exceeds the preset
point. The preset point is selected in the range of -120dBm to -80dBm.
RX Signal Detect (Below)
This function becomes valid if the receive signal strength becomes less than the
preset point. The preset point is selected in the range of -120dBm to -80dBm.
Selectable
AUX Outputs which are set up as Selectable appear in the available Function List
for the AUX Input Functions and Key Assignment. This allows AUX Inputs and PF
Keys to be used to control AUX Outputs.
Summary of Contents for TKR-740
Page 97: ...TKR 740 TKR 740 BLOCKDIAGRAM 121 122 ...
Page 99: ...TKR 740 TKR 740 INTERCONNECTION DIAGRAM 125 126 ...
Page 101: ...MEMO 129 ...
