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crazy question - dual transducer with two single garmin GPS series xs

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crazy question - dual transducer with two single garmin GPS series xs

Old 07-12-2014, 04:28 PM
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Default crazy question - dual transducer with two single garmin GPS series xs


Could I use one dual transducer and separate the two band by one Y wire, one branch to 721xs and other to the 1020xs (one gps with low frequency and other gps with high frequency)?

This is a crazy question but is it possible?

Thank you

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Last edited by josman2001; 07-12-2014 at 04:41 PM.
Old 07-12-2014, 04:50 PM
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Garmin single channel CHIRP don't accept the XID of a dual channel CHIRP transducer, and they don't CHIRP without recognising the XID of a supported single channel CHIRP transducer. (I've tried and got the message unsupported transducer connected)

It's possible with two Simrad NSS Evo2, two SonarHub or a NSS Evo2 and a SonarHub. I tried with a TM265LH connected to SonarHub and NSS 9 Evo2 a couple of weeks ago. I would not recommending doing it, there is a risk for problematic grounding causing noise issues and since the dual channel transducers are not officially supported, it may not work with future software updates. Since there is only one XID, this has to be wired to the sounder using the High channel to get the correct CHIRP frequencies, the Low element will get the correct frequencies when selecting Low CHIRP in the transducer installation menu. A CHIRP sounder is monitoring the temperature in the transducer and reduces the transmit power if needed to avoid overheating, this information is available over the XID line, since the sounder driving the Low channel would not have XID there would also be a risk of damaging the transducer.

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