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Can 83 Hz Damage a 50 Hz Transducer?

Old 07-06-2012, 06:12 AM
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Default Can 83 Hz Damage a 50 Hz Transducer?

I run a Humminbird 998 head unit with both the stock XHS 9 HDSI 180 mounted on the transom and an Airmar B60 mounted through the hull. I have a switch that selects either transducer connection. The stock HDSI runs at 83/200 Hz (in addition to the side imaging function) while the Airmar runs at 50/200 Hz. I can select each type of transducer frequency from the head unit. However, this requires scrolling through several menu pages and is awkward to do on the fly.

I have observed that as long as only the 200 Hz readout is used, the screen image is the same whether the 83/200 or 50/200 transducer is selected on the head unit menu system.

I use both transducers quite often. Selecting the transducer by just flipping the switch is a lot easier than also having to select the transducer type on the screen.

So would I be doing any harm to the Airmar transducer by running it with the 83/200 head unit setting?
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Old 07-06-2012, 07:12 AM
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No...no damage.
The voltage and power level remains the same.
Being a 50/200 kHz transducer.....the B60 will use the 200 kHz but cannot transmit the 83 kHz..it won't even know its there.
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Old 07-06-2012, 08:18 AM
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Thanks Gil!

Just flipping the switch is a lot easier than screwing around with the settings.

The B60 is more sensitive and the narrow 200 Hz beam is better at seeing small ledges. But ever since I installed the Transom Mate, the Humminbird transducer tracks bottom at speed better than the B60.
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