Author Topic: Is it possible to make the transducer cable shorter?  (Read 9437 times)

0 Members and 1 Guest are viewing this topic.

Offline tmx

  • Newbie
  • *
  • Joined: Nov 2009
  • Location: Munich / Germany
  • Posts: 12
  • Unit(s): 898cx SI
Is it possible to make the transducer cable shorter?
« on: March 08, 2010, 03:43:50 PM »
for example 0.5 to max. 1m lenght, without any significant negative effect on the side of the operating mode?
« Last Edit: March 08, 2010, 03:51:54 PM by tmx »


Offline sonar2000

  • Chief
  • Global Moderator
  • *
  • Joined: May 2009
  • Location: Kerr Lake NC
  • Posts: 5970
  • It is not lost ...it has been misplaced.
  • Unit(s): (1) 1197 (1) 1198
  • Software: 6.6
  • Accessories: Tow Fish
Re: Is it possible to make the transducer cable shorter?
« Reply #1 on: March 08, 2010, 04:26:11 PM »
I dont see any reason you cant shorten the cable.  Remember that soldering the connections are the whole deal.   guys have in fact lengthened the cable for towfish operation. Just be very careful in the connecton of the wires again. Maybe have an electronics guy do the soldering.  Chuck

Offline Jolly Roger

  • Hero Member
  • *****
  • Joined: Mar 2009
  • Location: Germany, Lake Constance
  • Posts: 804
  • HB Addicted
  • Unit(s): HELIX 9 G3N, 998Cx SI, 959DI
  • Software: latest (mostly)
  • Accessories: AS GR50, custom towfish and: A boat!!
Re: Is it possible to make the transducer cable shorter?
« Reply #2 on: March 09, 2010, 02:02:09 PM »
Chuck,
Jakob wants to get rid off the unnecessary cable to safe space / weight in the bait boat, remember?

Jakob,
reducing the cable length is not the problem, but getting the wires soldered AND shielded is the key to success here as Chuck already pointed out.  But looking on your website I guess that this is no biggie for you and your guys, right?

Regards / Harry
YES,......
WE SCAN!

Offline keizerh

  • Full Member
  • ***
  • Joined: Mar 2009
  • Location: Wildervank
  • Posts: 201
  • Unit(s): none
  • Accessories: ASHH and VC cable
Re: Is it possible to make the transducer cable shorter?
« Reply #3 on: March 09, 2010, 02:11:29 PM »
baitboat?
Website?

hendrik

Offline RGecy

  • Administrator
  • *
  • Joined: Mar 2009
  • Location: Beaufort, SC
  • Posts: 1981
    • SideImagingSoft.com
  • Unit(s): 1197c SI, 997c SI & 785c2
  • Software: 4.950 & 4.510
  • Accessories: Interlink & GRHA
Re: Is it possible to make the transducer cable shorter?
« Reply #4 on: March 09, 2010, 02:29:10 PM »
I just coil mine up behind the unit nice and neat and put a tie wrap on it!  ;)

Why risk messing something up!

Robert
Humminbird Guru and Forum Administrator

Offline keizerh

  • Full Member
  • ***
  • Joined: Mar 2009
  • Location: Wildervank
  • Posts: 201
  • Unit(s): none
  • Accessories: ASHH and VC cable
Re: Is it possible to make the transducer cable shorter?
« Reply #5 on: March 09, 2010, 03:53:17 PM »
It's for a small bait boat Robert, only about 2 feet long.
So ample space for cable

hendrik

Offline tmx

  • Newbie
  • *
  • Joined: Nov 2009
  • Location: Munich / Germany
  • Posts: 12
  • Unit(s): 898cx SI
Re: Is it possible to make the transducer cable shorter?
« Reply #6 on: March 09, 2010, 06:15:09 PM »
I guess that this is no biggie for you and your guys, right?

yes, that's right. it's not a big deal to short the cable the right way. i just wanted to know if there are maybe some requirements for the cable lenght refers to the transducer frequency..

Offline sonar2000

  • Chief
  • Global Moderator
  • *
  • Joined: May 2009
  • Location: Kerr Lake NC
  • Posts: 5970
  • It is not lost ...it has been misplaced.
  • Unit(s): (1) 1197 (1) 1198
  • Software: 6.6
  • Accessories: Tow Fish
Re: Is it possible to make the transducer cable shorter?
« Reply #7 on: March 09, 2010, 06:24:13 PM »
I think the cable can be shortened.  if you were to lengthen then you might need to change the impedence.  as if in a tow fish.  I am starting on a 5 foot bait boat.  we need to stay in touch.   chuck 

Offline Humminbird_Greg

  • Humminbird Helper
  • Humminbird Staff
  • *
  • Joined: Mar 2009
  • Location: Eufaula, AL.
  • Posts: 6546
  • I help because I can
    • Humminbird Web Site
Re: Is it possible to make the transducer cable shorter?
« Reply #8 on: March 10, 2010, 03:27:15 PM »
Last time I had checked on this guys I was told that shortening the cable could cause enough of an impedance mis-match that it could throw off the tuning of the unit.  We tune based on a 20 foot cable length.  I was also told that this is not as much of a factor when adding to the length of the cable… not sure why as you would be adding impedance which could still throw off the tuning.  I’ll have to catch one of the sonar engineers sometime and ask about this again but that could take weeks or months.

Greg Walters at Humminbird
gwalters@johnsonoutdoors.com

Offline sonar2000

  • Chief
  • Global Moderator
  • *
  • Joined: May 2009
  • Location: Kerr Lake NC
  • Posts: 5970
  • It is not lost ...it has been misplaced.
  • Unit(s): (1) 1197 (1) 1198
  • Software: 6.6
  • Accessories: Tow Fish
Re: Is it possible to make the transducer cable shorter?
« Reply #9 on: March 10, 2010, 04:34:07 PM »
Greg,we ask about this last friday but in the other direction,  adding length for a tow fish.  the answer was that the impedence would change for the lengthening. I seem to recall (kinda of hazy) that shortening would not be a problem. another idscussion we had was for future transducers to have a stubby short cable with a connector near the transducer and then a person could determine the length of cable need for the particular.  This way   transducer to unit could hsve different lengths and impedence match for the length.  but that is a way off venture and not short term.  chuck


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo

 

Related Topics

  Subject / Started by Replies Last post
1 Replies
11044 Views
Last post April 27, 2009, 10:16:31 PM
by RGecy
2 Replies
10364 Views
Last post October 31, 2009, 02:01:14 PM
by Drifter
1 Replies
5861 Views
Last post January 08, 2010, 04:43:37 AM
by Rickard
0 Replies
2902 Views
Last post April 29, 2011, 09:17:57 PM
by gofission
6 Replies
5257 Views
Last post January 16, 2012, 06:11:11 PM
by sonar2000
11 Replies
10337 Views
Last post April 09, 2012, 05:18:50 PM
by Humminbird_Greg
1 Replies
2853 Views
Last post February 05, 2013, 07:54:30 PM
by Bob B
6 Replies
17454 Views
Last post April 14, 2014, 04:24:31 PM
by bobcoy


anything
SimplePortal 2.3.3 © 2008-2010, SimplePortal