MyFishFinder.com Just like iceshanty but warmer
Used TriBeam may be the problem...does yours have a red band around it ..Vexilar had some issues with a batch and were swapping them out .These are what the defective ones looked like ...you may see small cracks/fractures on the red parthttps://fishingoutings.com/wp-content/uploads/2014/11/Vexilar-TB0033-Ice-Ducer-Tri-Beam-Transducer-White-0.jpgThankfully I purchased the newer version of the TB ducer from a well respected Iceshanty member although he seems to not have very good luck with Lithium Vex Batteries he sent me a satisfactory transducer I got mine new used it a season or so ..when other IS members pointed out the defect issues ...after some checking noticed the cracks and some wonky readings .
The display on the 28s that I’ve seen have always been a big ol red/pink mark for the jig. According to the display, the jig or spoon usually takes up about a foot of depth. Even with the gain turned down all the way. I don’t think it is a ducer issue, I think it’s just the way the 28s are.
That is not the case on mine.i would never fish with a huge blob screen.if the jig or spoon is marking a ft in size whoever is using it has no clue on using it.either gain,wrong depth setting or not using lp when needed.ive posted numerous pics throughout the years of a clean crisp display.thats with the proview in shallow water too.
I think they all run at 400 watts.not anymore powerful than other models.i have them all but a fl8se and 12.and all the ducers also.i have my gain half way with tribeam and even the proview in lp mode to get a nice fading green line...strange yours wont tune.you have a option of trying a different ducer?
According to the Vexilar website- http://www.vexilar.com/pages/product-comparisonThe fl-8se and the FL-18 have 400 watt output. All the rest have 1000 watt output.