Kenwood TM-641A Instruction Manual

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7. Turn off the transceiver’s Power switch before you 1. Press the VFO key to select the VFO mode.turn off the power supply, or in a vehicle, before you 2. Press the F key momentarily. The F indicator shouldstop the engine. light on the display.3. Press the REV/STEP key within 10 seconds ofpressing the F key. The current frequency step size4-2-2. Frequency Selection will be displayed.. Rotate the Tuning control or press the microphoneUP/DWN keys until the desired tuning step sizeappears in the display._You can change the dial frequency while in the VFOmode. The frequency can also be stored in memory, or inthe call channel .1. Press the VFO key to select the VFO mode.2. Rotate the tuning control, or press the microphoneUP/DWN switches to select the desired frequency. 45 ™™ 5 48008REV ecwcisee taiMode selectionYou can select the VFO mode, Memory channel mode, orCall channel mode using the following keys.Step Size [kHz]VFO mode 5210215220212.52252MR | tVFO MR vFof CALL To complete the programming of the step size you canMemory channel mode CALL channel mode press any front panel key or simply wait 10 secondsCALL and the microprocessor will automatically return tothe normal frequency display.on4-2-3. Frequency Step SelectionTo select the desired tuning or scan step size use thefollowing procedure:22