Kenwood TKR-850 Service Manual

Also see for TKR-850: Brochure & specs Function reference Instruction manual Instruction manual Programming reference

6TKR-850Programmable Function DescriptionScan Off Inhibits scanning.Scan On Starts scanning.Scan On/Off Scanning is toggled between being enabled or inhibited.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.Squelch Off The Squelch unmutes.Squelch On The Squelch mutes.Squelch On/Off The receiver’s squelch toggles between muted and unmuted.Squelch Momentary The Squelch momentarily unmutes.Take Over On/Off Toggles between disabling and enabling remote wireline control.Test Tone Off The Test Tone is inhibited.Test Tone On The Test Tone is enabled.Test Tone On/Off Toggles between enabling and inhibiting the Test Tone.TOT Disable The Time Out Timer is disabled.TOT Enable The Time Out Timer is enabled.TOT Disable/Enable The Time Out Timer is toggled between disabled and enabled.TX Disable The transmitter is inhibited.TX Enable The transmitter is enabled (normal).TX Disable/Enable Toggles between transmitter inhibited and transmitter enabled (normal).The following Programmable Functions are output functions used to tell the condition of the TKR-850 to an external device.The output functions can be assigned to only AUX Outputs as follows.Programmable Function DescriptionCOR (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 the specified QT/DQT are present.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.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 10.6V to 13.6V.TXS (TX Sense) This function becomes valid when the transmitter is keyed.Selectable AUX Outputs which are set up as Selectable appear in the available Function List for the AUX InputFunctions and Key Assignment.This allows AUX Inputs and PF Keys to be used to control AUX Outputs.RX Signal Detect This function becomes valid if the RX signal level becomes less than the preset point. The preset point isselected in the range of –120dBm to –95dBm.RF Power Down Detect This alarm function becomes valid if the RF Power becomes less than about 10W.Fan Status This alarm function becomes valid when the Fan is turned on, either by sensing a high temperaturecondition or by its operating mode being set to Continuous.OPERATING FEATURES