Author Topic: Helix 10 MEGA SI ADD TRANSDUCER FOR HIGH SPEED?  (Read 10536 times)

0 Members and 1 Guest are viewing this topic.

Offline Stickfish36

  • Newbie
  • *
  • Joined: May 2017
  • Location: Va
  • Posts: 4
  • Unit(s): Helix 10 Chirp SI Super Sixties
  • Accessories: Ipilot Link
Helix 10 MEGA SI ADD TRANSDUCER FOR HIGH SPEED?
« on: June 03, 2017, 11:23:15 PM »
Recently upgraded to a Helix 10 Mega SI, as I suspected the large SI transducer does not perform well at high speed with 2D plus I don't really like having it that low in the water. I need the 2D Chirp as clear as possible as I mainly run the lake around 20 mph looking for schools of stripers. The Chirp feature is awesome as I can run it along with old technology 200khz flashers Ray Jefferson etc. with no cross talk. (Old technology works really well for locating schools at high speed) I am looking for guidance or anyone with experience at using the Helix at high speed with an additional transducer. I will be transom mounting the additional transducer because I only had one sweet spot inside my hull and it is occupied. Does anyone know if I will sacrifice any Chirp qualities with the high speed transducer? I see humminbird recommends the XNT 9 20T (83 200khz)and the MSIDB cable. But I saw another transducer 9 XNT 28T (455/200khz) I realize the beam is more narrow but that may help me. Would the 455/200khz help? Any experience or guidance on transducers or settings will be appreciated.


Offline rnvinc

  • Hero Member
  • *****
  • Joined: Nov 2009
  • Location: Western KY
  • Posts: 4382
  • Unit(s): 1197c SI Combo, SOLIX G2 MSI
  • Software: Dependent on whim
  • Accessories: AS GRHA, MEGA 360, LowBird LSS 1 & 2
Re: Helix 10 MEGA SI ADD TRANSDUCER FOR HIGH SPEED?
« Reply #1 on: June 03, 2017, 11:56:42 PM »
The CHIRP frequency range of the individual piezo is more important than the beam angle of the piezo in a CHIRP system  ...

HB recommends the XNT 9 20 because it is 83/200kHz and the CHIRP frequencies are centered around those 2 frequencies  ... Making the XNT 9 20 more effective with the CHIRP transmit pulse frequencies available  ...

Pushing a CHIRP frequency of 75kHz-95kHz thru a piezo designed for 455kHz just will not give very good results  ...

The piezo frequency range design (in the xducer) and the CHIRP transmit frequency design (in the sounder) have to match to give satisfactory results  ...

Rickie
« Last Edit: June 04, 2017, 12:00:46 AM by rnvinc »

Offline Stickfish36

  • Newbie
  • *
  • Joined: May 2017
  • Location: Va
  • Posts: 4
  • Unit(s): Helix 10 Chirp SI Super Sixties
  • Accessories: Ipilot Link
Re: Helix 10 MEGA SI ADD TRANSDUCER FOR HIGH SPEED?
« Reply #2 on: June 04, 2017, 09:08:36 PM »
Thanks for the information.


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo

 

Related Topics

  Subject / Started by Replies Last post
22 Replies
26574 Views
Last post March 05, 2012, 07:38:21 AM
by Doc Stressor
2 Replies
4395 Views
Last post July 05, 2014, 06:41:00 PM
by Trout Bum
5 Replies
6582 Views
Last post June 20, 2015, 11:33:01 AM
by starkyb
15 Replies
21672 Views
Last post July 05, 2017, 12:05:04 AM
by rnvinc
13 Replies
9828 Views
Last post March 31, 2017, 04:24:54 AM
by Terrible45
2 Replies
3967 Views
Last post June 14, 2017, 11:02:36 PM
by Stickfish36
0 Replies
14641 Views
Last post September 16, 2018, 03:15:09 AM
by cade
1 Replies
3395 Views
Last post July 18, 2019, 12:34:10 AM
by rnvinc


anything
SimplePortal 2.3.3 © 2008-2010, SimplePortal