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Optimus 900MHz Pro 100 wireless audio

I do not remember how to adjust the frequency to get the head set to work I have not used it since my husband died and I just plain forget, I need a refresher on this. I have been trying to get it to work and all I get is alot of static, and it is charged. Thank You Bonnie

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Anonymous

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Where's the headset battery located?

Posted on Feb 16, 2010

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Anonymous

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There is an adjustment on the back middle. If it is connected to a audio source, the red light should light up on the front.
Then there is an adjusting dial next to the volume turn that until you get the sound you want.

Good luck

Posted on Nov 21, 2008

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I just received for my birthday, a RCA 900 MHz headphones. Followed the instructions but cannot get it to work. I tried to install it on a Hitasha TV. Can you help me?


Hi,
First you need to make a test to adjust your headphones wireless system..
.pls follow the step below:
  • "Connect the RCAheadphone base" TO " headphones output of TV" with 3.5mm stereo headphone jack cable (than Tv should mute ) RCA pilot lamp should flicker in parallel to voice coming from TV
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  • .After this pls do not touch Frequency dial any more..Just Turn it on ,and Volume adjustment ..Thats it..
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What frequency do i need to have my speakers on??


Different speakers perform better under different frequencies.
The sound you receive also depends on the box you use, and the type of car its in. In my opinion the best sound is what "I like" not what others set.
There is two ways of finding your optimum settings.
But my favorite way is to do the following.
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7)Adjusting the equalizer or EQ on the sterio will depend on the song your playing.
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It's probably best to allow the amp that is powering the subs to control the frequencies going to the sub(s). I would not use the lpf on both the head unit and the amp in any case. The control settings are not completely precise and you could end up with a lot of tweaking between the units to get the sound you want. I'd send full range to the amp and with it playing something with a lot of bass, set the 401s to "LP", the crossover slope to near maximum, and then adjust the frequency until it sounded best to me. Starting on page 11 of your manual are the Rockford-Fosgate recommended adjustment procedures, including setting the gains and the filter frequency.

Those numbers for the lpf on your head unit sounds like it allows you to decrease (-24dB), as well as increase (+6dB) the bass at the specific frequencies of 50, 63, 80 and 100Hz. You probably don't want to decrease the bass boost for subs. And the 401s will allow a boost up to 12dB and is variable from 50-250Hz.

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1 Answer

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It may be possible that the FM frequency chosen during setup, is in use in your area by a strong signal from a local station. Change to another frequency and see if the situation improves.


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FM Modulator Setting
You can adjust FM Modulator frequency and output level.
7 Frequency
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