Koden CVS-128 - Change the Frequency

Change the frequency CVS-128/128B
xiv 0093112802-06
Change the frequency
CVS-128B is used with the other transducer please make sure to set the below items manually in line
with the transducer installed.
Caution: The transducer may be damaged if the settings are wrong.
Caution: There are occasions too much noise is generated in a particular frequency to
be connected.
Caution: Fish symbol operation cannot be generated at the other frequencies than the
high frequency of 200 kHz and the low frequency of 50 kHz.
Setting of Output Frequency (CVS-128B)
1 Press the [MENU] key.
2 Select [Freq]  [Freq select (L)]. (See [2.1 How to operate the menu])
3 Press the [ ] key.
4 Set the output frequency at the low frequency side. (Press the [ ] key or [ ] key)
5 Set the high frequency also in the same way as for the low frequency side, in reference to the step
2 to 4.
6 Press the [MENU] key. Then, the edit is finished.
Caution: When single transducer is connected, set the same frequencies for low and
high.
Setting of Power Frequency (CVS-128B)
1 Press the [MENU] key.
2 Select [Freq]  [Power freq adj]. (See [2.1 How to operate the menu])
3 Press the [ ] key.
4 Set the power supply frequency. (Press the [ ] key or [ ] key)
The recommended power supply frequency for Dual frequency (50 kHz/200 kHz): 107.0 kHz
Transmit
frequency
Recommended
power supply
frequency
Transmit
frequency
Recommended
power supply
frequency
28 kHz 115.0 kHz 70 kHz 106.5 kHz
38 kHz 105.0 kHz 75 kHz 103.5 kHz
40 kHz 123.0 kHz 120 kHz 109.0 kHz
55 kHz 107.0 kHz - -
Caution: There may be much noise on the screen even for the recommended power
supply frequency depending on the transducer. In this case, set the power
supply frequency to reduce the noise on the screen.
Caution: Set the power supply frequency to reduce the noise on the screen, when the
other transmission frequency than above is used.