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Aurora 2400 RF power amplifier voltage detector

RF out put power goes low and no power amplifier voltage detector.

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Re: Aurora 2400 RF power amplifier voltage detector

Sounds like it may be the finals on your radio...or else the power transistors on the amp are bad.

Posted on Feb 01, 2008

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Midland 75-785 gets very hot within minutes of powering on

The radio is either stuck in transmit or the RF power output section has a short in it. If there is no RECEIVE audio and the squelch is open, and the radio is not in transmit, the chances are pretty good that the audio power amplifier is shot.

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VX-5500 LowBand change power to 20 or 50 watt to suit power amplifier.

The channels can be programmed for either low or high power on a per channel basis. Perhaps I do not understand what you are doing? It would be easy to program each channel to 20 watts. I would take the high power and turn it down since the low power setting from the factory is usually under 20 watts.

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On a kenwood ts-700a, is there a output power adjustment and where is it

Hi Joe,

If you're putting out 7 watts of RF power, you shouldn't need more to hit a repeater within 15 miles of your location, however, if there are no repeaters within range, then you must be in a rural location.

If this is so, then unless there is a repeater within reasonable range, you're not going to have much luck no mater the RF power your radio put out.

The more RF power your radio chuffs out, the shorter the battery life can be expected, 7 watts is enough to drain the battery quickly as it is.

If on the other hand this is a base set, I doubt it, then with a properly installed out door antenna, you should be making contacts with ease on 7 watts, depending on location as I've stated.

I hope this has answered your query.


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Kenwood TS 2000X: Low HF TX power output on HF bands ONLY.

Hello, this problem is solved and how?
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If the swr does not deflect even you press the PTT it might be the power amplifier has the problem,pls check also your power supply it should be regulated nor constant voltage output....

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1 Answer

No output

If you antenna SWR are way out ( too high ) you may have burrned the final or driver up when you hooked it up to do the antenna adjustment. Also be sure to turn the high power switch on to adjust the antenna SWR or the SWR meter won't read correctly, if the RF power is too low. Good Luck
NC Electronic
Mills, Wyoming

Dec 13, 2007 | Two-Way Radios

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