Is this the new style 7092 controller or the older 6091? On the 7092 you won't use the knobs at all, they are for pulse mode. For wavemode you hold the auto tune button for 2 seconds until the wavemode light blinks, you are then in wavemode and it will scroll through all the frequency range and you just push the button again when you see a wave. You can then do fine tuning with the + and - buttons.
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Roger Vitko
Tunze USA
"He's for every one of us, stands for every one of us, he'll save every man, woman and child in a mighty Flash!"
Current Tank Info: 210 gallon planted tank with Altum Angelfish
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