The 999ci HD SI Combo comes with the XHS 9 HDSI 180 T (Hi-Def SideScan xducer) … 200kHz/83kHz 2d and 455kHz/800kHz SI/DI…

The 899ci HD SI Combo comes with the XNT 9 SI 180 T (Compact SI xducer)…200kHz/83kHz 2d and 455kHz SI/DI …

HB has a transducer trade in program to upgrade the XNT 9 SI 180 T to the XHS 9 HDSI 180 T …which will give the 899 the same frequency options as the 999ci HD SI Combo …

http://www.humminbird.com/Category/Support/FAQ/TransducerExchange/
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Not only will the XHS 9 HDSI 180 T allow the added 800kHz frequency …the SI DI images will be somewhat crisper simply because of the longer SI piezo elements in the XHS 9 HDSI 180 T (longer piezo = thinner SI beam = more detail) …

Rickie

red89 wrote:

My question is, is there a way to delete all waypoints on your unit? I have hundreds of waypoints from previous owner that I don’t want on there. I have an old 757c, and it seems i can only select one way point at a time which would take hours.

For some reason I thought if I deleted them on humminbird PC, then plugged the SD card back into my unit it would wipe out the previous data and just load the new data, but apparently that is not the case.

Thanks,

For your 757 … Look under the Setup tab for “Format Nav Directories” …

Rickie