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XPR8300 info

Moderator: Queue Moderator

Max
Posts: 589
Joined: Wed Sep 05, 2001 4:00 pm

XPR8300 info

Postby Max » Sat Oct 18, 2014 3:01 pm

Hi

I am trying to find out what a "TRBO RPTR U1 40W XCVR Service Kit (PMTE4004AS)" is and why it would have been put on a XPR 8300 UHF as a repair ?

Thanks
Max

com501
Posts: 1000
Joined: Fri Nov 02, 2001 4:00 pm
What radios do you own?: Over 50 - All Motorola

Re: XPR8300 info

Postby com501 » Thu Oct 23, 2014 1:34 pm

The PA was blown and that is the repair kit.

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escomm
Queue Moderator
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Joined: Fri Mar 24, 2006 8:24 pm

Re: XPR8300 info

Postby escomm » Thu Oct 23, 2014 1:57 pm

Or the receiver was no good. TX and RX bricks are the same part number.

Max
Posts: 589
Joined: Wed Sep 05, 2001 4:00 pm

Re: XPR8300 info

Postby Max » Fri Oct 24, 2014 5:27 am

Thanks for the replies.
Were there any other special upgrades in this repair kit (other then just replacing the PA)that addressed the on going problem with over heating in the 8300's ?


Thanks
Max

com501
Posts: 1000
Joined: Fri Nov 02, 2001 4:00 pm
What radios do you own?: Over 50 - All Motorola

Re: XPR8300 info

Postby com501 » Fri Oct 24, 2014 10:31 am

No, not really, but I understand they did somewhat rework the replacement kits somewhat. Regardless of what the documents say, it still looks like a medium power mobile to me, and I would treat it that way, 25 watts continuous, no more.

RFguy
Posts: 1294
Joined: Wed Dec 21, 2005 6:17 am

Re: XPR8300 info

Postby RFguy » Fri Oct 24, 2014 12:15 pm

com501 wrote:Regardless of what the documents say, it still looks like a medium power mobile to me, and I would treat it that way, 25 watts continuous, no more.


And it you want it to last, run it at 1/2 power MAX. You shouldn't notice a significant reduction in the range (10% or so).

Max
Posts: 589
Joined: Wed Sep 05, 2001 4:00 pm

Re: XPR8300 info

Postby Max » Fri Oct 24, 2014 12:27 pm

Thanks com501 and RFguy.

Max
Posts: 589
Joined: Wed Sep 05, 2001 4:00 pm

Re: XPR8300 info

Postby Max » Sat Nov 01, 2014 8:28 am

One reason i was asking if there were any other upgrades with the kit replacement was i see there is a "Main Fan speed regulation switch" on the board now.I thought XPR 8300 models did not come with the option.

Thanks Max

com501
Posts: 1000
Joined: Fri Nov 02, 2001 4:00 pm
What radios do you own?: Over 50 - All Motorola

Re: XPR8300 info

Postby com501 » Sat Nov 01, 2014 11:09 am

8300s shipped with the fan speed controlled by the board. It was always in 'quiet' mode, which provided inadequate airflow most of the time.

The 8400 board ships default at max speed, which we used to have to do to the 8300s by clipping the brown wire on the fan lead of the 8300s.
Flipping the switch on the 8400 to the slower speed just quiets the fan down to make it tolerable if the repeater is in a controlled environment on someone's desk or office.

I still run them max out and put up with the noise, even on the bench. Put a coffee cup on your notepad.

Max
Posts: 589
Joined: Wed Sep 05, 2001 4:00 pm

Re: XPR8300 info

Postby Max » Sat Nov 01, 2014 12:44 pm

http://jeffcomm.com/XXPR8400_FAQ.PDF I was asking based on the following document
It say's they are variable speed controlled and a fan speed regulation switch position can be moved from Full Speed (F) to Temperature Regulated (N).

So are you saying the switch on my 8300 that has the same with the (F) and (N) is not regulated ?


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Max

Max
Posts: 589
Joined: Wed Sep 05, 2001 4:00 pm

Re: XPR8300 info

Postby Max » Sat Nov 01, 2014 4:02 pm

I'll try to explain this now that i opened up the repeater.
Attached is a invoice of work that was done at Motorola Depot to a XPR 8300 i bought.
I was trying to find out what the part numbers were and what work was done at Motorola.
Now i can see the part number on the pictures i took.
I am also wondering if this repair kit would have upgraded the unit to 32MB.Image
Image
Image


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