CPA reading help

[linhkienbodam]

My 1944CBB radar can catch a targerts well, but some time I see a CPA and a of target is not correct. Please advise

View attachment 5625

 

[linhkienbodam]

My 1944CBB radar can catch a targerts well, but some time I see a CPA and a of target is not correct. Please advise

View attachment 5625

I got an answer on Furuno website. Sorry for my noisy