XTL 5000 Powers Down

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tuckerm
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XTL 5000 Powers Down

Post by tuckerm »

I have a mid power XTL 5000 with legit tags and everything that powers down upon transmitting on a 158.xxxx channel. It does not power down on any other simplex or repeater channels. Thoughts?
Schrodinger's Radio: It is simultaneously too loud and too quiet, but you will never know which until someone transmits.
Will
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Re: XTL 5000 Powers Down

Post by Will »

Drawing enough current and resulting voltage drop to trigger a low voltage which will shutdown the radio.

Check:
Proper size wire and fuse/fuse holder for the main power direct from the battery to the radio. 12 ga minimum.
Ground to the vehicle body near the radio.
High VSWR and incorrect transmitter calibration/alignment.
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tuckerm
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Re: XTL 5000 Powers Down

Post by tuckerm »

Wiring is good and radio was tuned and aligned before I received it. I bet it's the power supply. It's mounted in the house with an Astron power supply, I think 7 Amps. I'll have to look. The XTL replaced a 25w VHF radio that did just fine on the existing power supply.
Schrodinger's Radio: It is simultaneously too loud and too quiet, but you will never know which until someone transmits.
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escomm
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Re: XTL 5000 Powers Down

Post by escomm »

Are you using a secure module?

Radio firmware version?
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tuckerm
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Re: XTL 5000 Powers Down

Post by tuckerm »

No secure, firmware is latest I believe.

It is the power supply though...Astron SL-11MG. I'll have to upgrade the power supply at some point...but this is a glorified scanner at this point. Rarely do I have to transmit from my office.

Thanks everyone.
Schrodinger's Radio: It is simultaneously too loud and too quiet, but you will never know which until someone transmits.
Will
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Re: XTL 5000 Powers Down

Post by Will »

As I mentioned on another forum, adjust the TX power down some.
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escomm
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Re: XTL 5000 Powers Down

Post by escomm »

Agree with Will, that power supply can't handle the load
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tuckerm
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Re: XTL 5000 Powers Down

Post by tuckerm »

I'll adjust the TX down until I can find a suitable power supply. I'm not really in a rush and this thing is more of a scanner / spare VHF radio for me. Couldn't pass up the good deal on it. Thanks again everyone.
Schrodinger's Radio: It is simultaneously too loud and too quiet, but you will never know which until someone transmits.
Will
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Re: XTL 5000 Powers Down

Post by Will »

I think the power supply you already have is good. Any way you probably do not need all that 50 watts anyway.
Save some money for the Holidays....
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tuckerm
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Re: XTL 5000 Powers Down

Post by tuckerm »

Yeah, that's the plan.
Schrodinger's Radio: It is simultaneously too loud and too quiet, but you will never know which until someone transmits.
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escomm
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Re: XTL 5000 Powers Down

Post by escomm »

Disagree and I think you will find the current draw at 50 watts is about 3/4 of the current draw at high power. Spec on the unit is 20 amps for full power. Hope it doesn't blow up your power supply.
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tuckerm
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Re: XTL 5000 Powers Down

Post by tuckerm »

escomm wrote:Disagree and I think you will find the current draw at 50 watts is about 3/4 of the current draw at high power. Spec on the unit is 20 amps for full power. Hope it doesn't blow up your power supply.
It's a mid power, 50w XTL...not 110w full power.
Schrodinger's Radio: It is simultaneously too loud and too quiet, but you will never know which until someone transmits.
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escomm
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Re: XTL 5000 Powers Down

Post by escomm »

Completely missed that part, my bad.
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tuckerm
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Re: XTL 5000 Powers Down

Post by tuckerm »

Turned lower power on and was able to transmit flawlessly on the 158s. I'll leave it on Low power for now, I really don't need the full 50 watts. Thanks again everyone.
Schrodinger's Radio: It is simultaneously too loud and too quiet, but you will never know which until someone transmits.
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