Copper Talk » Open Forum » Archived Messages » 2004 » 12/01/2004 to 12/31/2004 » Over modulating texas star modulator « Previous Next »

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Delerius
Junior Member
Username: Delerius

Post Number: 21
Registered: 7-2002
Posted on Thursday, December 23, 2004 - 7:09 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

What would be the cause of a over modulating T.S. modulator V plus? I have tryed the amp with two radios, one of them is a peaked out 29 nw st and the other a magnum m-1. With the 29, I get reports of myself being all broken up (audio cutting in and out) when I have the power knob around half way and when the knob is all the way up, I'm over-modulated. I have also noticed when I have the power knob all the to the max, there is barely any swing. My dead keys are set below 1 watt. Any ideas?
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Bob_newhouser
New member
Username: Bob_newhouser

Post Number: 5
Registered: 11-2004
Posted on Friday, December 24, 2004 - 11:30 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

How much audio are you feeding the mod v? try turning the mic gain back and see how it is.
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Patzerozero
Intermediate Member
Username: Patzerozero

Post Number: 288
Registered: 7-2004
Posted on Monday, December 27, 2004 - 12:08 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

ouch!
the m-1 is swinging 1/2 of what the mod-v swings when driven properly. forget the m-1, it ain't gonna work.
the 29 ain't gonna work much better if it's keying more then 3 or 4 watts, or swinging more then 10 watts. if dead key is ok, try turning down mic gain to get swing under 10.
when radio drive is right, and mod-v is set right, should see 25-40 dk and 80-100 swing. or thereabouts. too much radio=much crunch in the audio. keep it low.

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