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CPS 11/POWER SETTING

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hamoper

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I have a xpr 5550 high power radio. The problem I am having is with the power setting in CPS 11. Is there any special way I should be entering the power setting? I have the low setting at 25 watts and the high setting at 40 watts but does not appear to make a difference.....

Appreciate any assistance.

Thanks
 
Mars

Mars

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I'm not sure what you're asking. The code plug is hard coded so you cannot go below 20 W for low-power. That said, the code plug can be modified to allow lower power output.
 
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Jutod

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I think you are saying that no matter what you set it too, you have the same power out reading on a watt meter? If that is what you are saying..... then you need to consider that you can't read proper power out of wattage on a bird meter (or whatever) if you are using a digital channel that is programmed for a repeater split. The radio will be in a TDMA time slot mode and will be keying and un-keying so fast (every 30ms) that the watt meter will not correctly show the wattage of the PA. You can however use a digital talk around channel (that won't be using TDMA), or better yet an analog channel to test and verify the power output of the mobile on a traditional watt meter. The analog channel method would be the preferred way to test the output wattage of the radio.
 
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hamoper

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Sorry for not being clear with my question, that is what happens when one is tired and in a hurry.....Yes, I am using an analog frequency and the power out is low. I have the XPR5550 set at 25 watts for low power but it reads about 5. The meter I used is a 15 year old micronta. I am going to try a diawa swr/pwr meter tonight. I hope it's a defective micronta meter!

Thanks
 
Mars

Mars

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Try a BIRD or Telewave meter :)

Also check current draw from your power supply between high/low power, and verify the model/sticker on bottom of radio, matches what you're seeing in CPS. It's always possible someone put a high-power codeplug in to a low-power radio.

The XPR5550 is a fine radio.
 
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hamoper

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Ok, turns out I had a bad micronta meter. I used a daiwa meter and it showed approx 27 watts out low PWR and 40 out for high PWR.

Thanks everyone for the help!
 
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