Author Topic: Vex FL8-SLT gain control knob  (Read 330 times)

Offline Brian A

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Vex FL8-SLT gain control knob
« on: Feb 15, 2021, 07:51 AM »
Hey guys. I have had this flasher for over 20 years now. It works great

I have always wondered about something, its not in the manual that I can find.

I am sure some of you guys know the answer to this

Its the gain control knob. You can push in on it and it clicks, display changes. Click again it goes back to where it was before clicking it

What is this for? More gain resolution is all I can figure. I dont really understand how it works. Or how to use it


Thanks

Offline hardwater diehard

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Re: Vex FL8-SLT gain control knob
« Reply #1 on: Feb 15, 2021, 08:42 AM »
It is the Interference Rejection function ..used when running two units in close proximity..when pressed/cycled it reduces the cross signal interference between the units ..note only one angler/unit should cycle through this function ..you may not get rid of all the interference but should get rid of most and enough to fish.

 https://www.manualslib.com/manual/657373/Vexilar-Fl-8slt.html?page=10#manual


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Offline Brian A

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Re: Vex FL8-SLT gain control knob
« Reply #2 on: Feb 15, 2021, 08:43 AM »
Thanks

But I have the yellow IR button underneath the gain.


Offline hardwater diehard

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Re: Vex FL8-SLT gain control knob
« Reply #3 on: Feb 15, 2021, 08:44 AM »
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Offline Brian A

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Re: Vex FL8-SLT gain control knob
« Reply #4 on: Feb 15, 2021, 08:47 AM »
Thanks I have seen that video thats not what I have

I am trying to post a pic of it

Offline DR.SPECKLER

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Re: Vex FL8-SLT gain control knob
« Reply #5 on: Feb 15, 2021, 08:47 AM »
Hes talking slt model.the ir button turns ir on and the pushing gain in cycles thru 10 interference rejections.a little history the fl8 had no ir,the slt came out with ir and that ir button turns it on or off and pushing gain cycles ir and then the se came out with brighter lights and better ir.

Offline Brian A

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Re: Vex FL8-SLT gain control knob
« Reply #6 on: Feb 15, 2021, 08:49 AM »
Hes talking slt model.the ir button turns ir on and the pushing gain in cycles thru 10 interference rejections.

Ok I see. So the yellow button turns it on and off. Makes sense since the red light comes on.

Yeah thats gotta be it

Thanks!!!

Offline DR.SPECKLER

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Re: Vex FL8-SLT gain control knob
« Reply #7 on: Feb 15, 2021, 08:51 AM »
Yes.it was vexilars first flasher that had ir so its a tad goofy with a button to turn it on and pushing the gain button.

Offline hardwater diehard

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Re: Vex FL8-SLT gain control knob
« Reply #8 on: Feb 15, 2021, 08:52 AM »
It looks like the pressing gain knob turns the IR on/off (default is on upon power up red light) the yellow IR button when pressed cycles through the 10 IR modes.

https://www.manualslib.com/manual/657369/Vexilar-Fl-8se.html?page=6#manual
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Offline Brian A

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Re: Vex FL8-SLT gain control knob
« Reply #9 on: Feb 15, 2021, 09:11 AM »
Yes thanks again Dr.  !!

Offline DR.SPECKLER

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Re: Vex FL8-SLT gain control knob
« Reply #10 on: Feb 15, 2021, 09:19 AM »
It looks like the pressing gain knob turns the IR on/off (default is on upon power up red light) the yellow IR button when pressed cycles through the 10 IR modes.

https://www.manualslib.com/manual/657369/Vexilar-Fl-8se.html?page=6#manual
hd no disrespect but its a fl8slt not se.little differences between the two.

Offline hardwater diehard

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Re: Vex FL8-SLT gain control knob
« Reply #11 on: Feb 15, 2021, 09:46 AM »
Getting it from the manual ..Is the manual incorrect ..I dont own a FL8 of any model so no hands on experience

https://drive.google.com/drive/folders/0B6O6hqT9O0J6OVY5bnRRMjRWWTQ

The yellow button in the middle of the panel controls the Interference
Rejection feature. The red LED to the upper left of the I.R. button tells

you if the rejection circuitry is on. The I.R. feature has eight steps of rejec-
tion to let you eliminate unwanted interference from another nearby

depth finder. When you turn on the FL-8SLT on, the I.R. automatically
comes on to the first step. If necessary, press the I.R. button repeatedly
until the interference is eliminated. You can press the button seven times
before you get back to the first step again. Turning the unit off and then

on again will also reset the I.R. back to the first step. To turn the I.R. fea-
ture off press the Gain control knob. The red LED will also go off.

TIP - If running two SLTs, it is best to turn the I.R. off on one unit
and then eliminate the interference on the other unit.
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Offline DR.SPECKLER

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Re: Vex FL8-SLT gain control knob
« Reply #12 on: Feb 15, 2021, 11:27 AM »
Been awhile since i had a fl8slt or se.either way its all related to interference rejection.i thought hitting gain switched thru interference on the slt.

Offline DR.SPECKLER

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Re: Vex FL8-SLT gain control knob
« Reply #13 on: Feb 15, 2021, 11:37 AM »
Hd is right.i am wrong as i just read the fl8slt manual and it states the gain button is for turning ir on/off and the ir button cycles thru 8 ir settings.think i would remember since ive had 4 fl8slt and se units.age getting to me..

 



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