Kenwood TS-890S Operation Manual - Page 56

4 BASIC OPERATIONS Preset The tuning results can be stored as preset information in the builtin antenna tuner according to the preset frequency categories. When the built-in antenna tuner is ON, the preset information that corresponds to the current TX frequency is automatically configured for the built-in antenna tuner. Press [AT]. • > appears on the screen. When the antenna tuner is ON while receiving, > is displayed. The preset information that corresponds to the current TX frequency is configured for the built-in antenna tuner. • When the TX frequency is altered, the preset information that corresponds to the preset frequency category is automatically configured for the built-in antenna tuner. • To turn off the built-in antenna tuner, press [AT] again. Preset Frequency Categories for Built-in Antenna Tuner (MHz) 0.030 ≦ f < 1.850 14.100 ≦ f < 14.500 1.850 ≦ f < 2.500 14.500 ≦ f < 18.500 2.500 ≦ f < 3.525 18.500 ≦ f < 21.150 3.525 ≦ f < 3.575 21.150 ≦ f < 21.500 3.575 ≦ f < 3.725 21.500 ≦ f < 25.500 3.725 ≦ f < 4.100 25.500 ≦ f < 28.300 4.100 ≦ f < 6.900 28.300 ≦ f < 29.000 6.900 ≦ f < 7.050 29.000 ≦ f < 30.000 7.050 ≦ f < 7.100 30.000 ≦ f < 51.000 7.100 ≦ f < 7.500 51.000 ≦ f < 52.000 7.500 ≦ f < 10.500 52.000 ≦ f < 53.000 10.500 ≦ f < 14.100 53.000 ≦ f < 60.000 60.000 ≦ f < 74.800 (E type) Holding Transmission at the End of Antenna Tuning Transmission can be held after antenna tuning has ended. Configure in Advanced Menu [7] "TX Hold After Antenna Tuning" Setting Value Off (default)/ On Off: Returns to receiving state after antenna tuning has ended. On: Continues 10 [W] transmission in the CW mode after antenna tuning has ended. ● When transmission is held after antenna tuning has ended, the held status will be canceled when transmission operations such as [SEND] or PF [DATA SEND] is performed or when [AT] is pressed. Switching Antenna Tuner Behavior during Reception Signals received may be made to pass through the built-in antenna tuner. Turning ON this function may help to reduce reception interference from other distant frequencies. Configure in Advanced Menu [8] "Antenna Tuner during RX" Setting Value Off (default)/ On Off: Signals received do not pass through the built-in antenna tuner. On: Signals received pass through the built-in antenna tuner. ● When full break-in is ON in the CW mode, the antenna tuner will function during reception regardless of the above setting. ● If the TX and RX frequencies are different during split operation, the antenna tuner will not function during reception regardless of the above setting. Configuring the Built-in Antenna Tuner Behavior for Each Band Two options to either store the ON/OFF status of the built-in antenna tuner separately for each band category or to store the same status for all bands are available. Configure in Advanced Menu [9] "Antenna Tuner Operation per Band" Setting Value Off (default)/ On Off: Stores the same ON/OFF status of the built-in antenna tuner for all bands. On: Stores the ON/OFF status of the built-in antenna tuner for each band category. Connecting the External Antenna Tuner AT-300 To use the external antenna tuner AT-300, connect it to the ANT 1 connector and AT connector. • AT-300 will not function if it is connected to the ANT 2 connector. AT connector is a control terminal that is used exclusively for AT-300. It cannot be used to control other external antenna tuners. When an external antenna tuner other than AT-300 is connected, make use of TX tuning. ● AT-300 cannot be used with the 50/70 MHz band. When using a 50/70 MHz band antenna, connect it to the ANT 2 connector. ● When AT-300 is connected to the AT connector and ANT 1 is used, the signal bypasses the built-in antenna tuner circuit. ● Production of the AT-300 has been discontinued. TS-890S ANT 1 Connector . AT-300 4-12