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Doboy
Posted on Tuesday, August 06, 2002 - 10:27 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I have RCI-2970dx that on the lowest power it keys 5 watts and swings 65 watts, is this to much for a galaxy 350, if so is there a way to turn the modulation down?
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Tech671
Posted on Wednesday, August 07, 2002 - 6:00 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Input should be 2w carrier and 12-35w peak.
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2600
Posted on Wednesday, August 07, 2002 - 11:42 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

The 2970 is WAY too big for that amplifier. If you can get a "standby" switch installed in the radio to turn off the keying wire that goes to the (internal) amplifier, you'll have a barefoot radio that matches this amp pretty well. With the radio running full power, I predict parts will FRY in the amplifier for sure, and maybe in the radio.
73
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Doboy
Posted on Thursday, August 08, 2002 - 6:05 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

what kind of amplifier would you suggest that will work well with the 2970, i want a ssb delay, and it is mobile so about 70 amps is all I can handle.
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2600
Posted on Friday, August 09, 2002 - 12:08 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Seriously, the output from a 2970 is about right for eight transistors. The four-to-one rule is hard to get around. One driving four, Two driving eight, Four driving sixteen usually turns out to be the "sweet spot" matching drive out of one stage to what the next stage (amplifier) really can take.
73

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