Kenwood TS-450S Instruction Manual page 73

(3) Operation
1. Set the desired transmit frequency.
2. Press the AT TUNE key. CW mode is entered, the AT
TUNE indicator lights, and tuning starts.
| Note |
| The tuner will not function when the CAR control is turned
fully counterclockwise.
3. When tuning is complete, the AT TUNE indicator goes off,
and the mode returns to the original mode automatically.
AT TUNE indicator 4. If tuning does not finish within about 20 seconds, a warning
beep sounds.
| Note
| If an alarm sounds, the antenna system may be defective,
| so check it. [
5. Make sure the antenna system is not defective, and press
the AT TUNE key again.
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