DB exciter dip switch configuration

FM does it with frequency!
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Mikes89er
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Joined: Mon Apr 30, 2018 4:33 pm

DB exciter dip switch configuration

Post by Mikes89er » Mon Apr 30, 2018 4:45 pm

Can someone help me find the configuration for the dip switch configuration for my exciter i want to configure it to broadcast on the 88.2Mhz ?

Its a DB exciterImage
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IngeManrique
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Re: DB exciter dip switch configuration

Post by IngeManrique » Mon Apr 30, 2018 7:46 pm

Hi
Do you have a pic of the DIPs and the PLL Freq Synth IC

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Deep Thought
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Re: DB exciter dip switch configuration

Post by Deep Thought » Mon Apr 30, 2018 9:17 pm

This is for a different model but I would imagine they use the same frequency synthesizer for most if not all of these. If your switch bank looks like this it should work.
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Mikes89er
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Re: DB exciter dip switch configuration

Post by Mikes89er » Mon Apr 30, 2018 9:49 pm

How would i configure this to the 88.2 fm please
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Mikes89er
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Re: DB exciter dip switch configuration

Post by Mikes89er » Mon Apr 30, 2018 9:53 pm

More pics here if anyone can help me please
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Mikes89er
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Re: DB exciter dip switch configuration

Post by Mikes89er » Mon Apr 30, 2018 9:56 pm

Deep Thought wrote:
Mon Apr 30, 2018 9:17 pm
This is for a different model but I would imagine they use the same frequency synthesizer for most if not all of these. If your switch bank looks like this it should work.
How would i use that to configure my exciter please?

TPT
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Re: DB exciter dip switch configuration

Post by TPT » Tue May 01, 2018 7:13 am

Guessing--but looks like simple bcd setup. Going from Right to Left the first bank of switches--marked 10 mhz. --put the switch marked 8 down/ to the(-) position. Next bank, marked 1 mhz.--the number 8 switch also down. third bank--marked 100 mhz.--the 2 switch down and the final bank of switches are all left in the UP/(+) position for zero.

Normally, these switches are used to ground a lead on an IC that determines the frequency. Hence, I am assuming + means "Off" or not grounded, and - means grounded, that is, the switch is closed shorting that lead to ground. However I've run into set-ups from some manufacturers that are marked to be exactly reversed, so I would try to borrow a counter and a dummy load & check where the exciter actually comes up after you set the switches.

I'm assuming you are out of the US, hence the 88.20 frequency. However, if you type like I do--and that's supposed to be 88.3--you would get the .3 frequency by putting the number 2 and number 1 switches down in that third (100 KC) bank. If you need to move this exciter in the future to a different frequency, that's how you get to different numbers beside 1-2-4-8. Just add the switch numbers in each bank to get that number. For example, for 105.7 the first bank (on the right) would be 2 & 8 (=10), the next bank 4+1 (=5), and the final bank 1+2+4 (=7), with the last bank again left in the (+) or off position for zero.

Good luck

Mikes89er
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Re: DB exciter dip switch configuration

Post by Mikes89er » Tue May 01, 2018 1:19 pm

TPT wrote:
Tue May 01, 2018 7:13 am
Guessing--but looks like simple bcd setup. Going from Right to Left the first bank of switches--marked 10 mhz. --put the switch marked 8 down/ to the(-) position. Next bank, marked 1 mhz.--the number 8 switch also down. third bank--marked 100 mhz.--the 2 switch down and the final bank of switches are all left in the UP/(+) position for zero.

Normally, these switches are used to ground a lead on an IC that determines the frequency. Hence, I am assuming + means "Off" or not grounded, and - means grounded, that is, the switch is closed shorting that lead to ground. However I've run into set-ups from some manufacturers that are marked to be exactly reversed, so I would try to borrow a counter and a dummy load & check where the exciter actually comes up after you set the switches.

I'm assuming you are out of the US, hence the 88.20 frequency. However, if you type like I do--and that's supposed to be 88.3--you would get the .3 frequency by putting the number 2 and number 1 switches down in that third (100 KC) bank. If you need to move this exciter in the future to a different frequency, that's how you get to different numbers beside 1-2-4-8. Just add the switch numbers in each bank to get that number. For example, for 105.7 the first bank (on the right) would be 2 & 8 (=10), the next bank 4+1 (=5), and the final bank 1+2+4 (=7), with the last bank again left in the (+) or off position for zero.

Good luck
Thanks heaps, yes im in New Zealand. Will give it a go!

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