MarCum LX3tci depth reading

Hi I noticed when checking the depth reading on my flashers holding it above my hardwood kitchen floor at about 4’, that it reads 10’ ? Does this mean my transducer is bad? Any suggestions? Thanks

Try it in the water. More then likely it is just fine.

Thanks. I thought the way you test your depth Finder was to hold it over a hard surface and it should read the correct depth? Not sure if that’s correct. When I hold it at 5’ above the hardwood floor it was reading close to 20’? Just doesn’t seem right. Thanks again.

What you are doing is showing that the transducer is sending and receiving the pings. It is not accurate since sound travels at a different speed in air vs water. It is slower in air thus the “deeper” reading. It is about 4 times slower so your unit looks to be accurate using your 5 foot transducer height and 20 foot reading.

Thanks Netguy. I really like this unit and it’sa relief to know I don’t need repairs. Fish on!