how about this one?

This forum is for the discussions targeted at converting various models of Motorola equipment to operate in the 900MHz Amateur Band.

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batman21
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Joined: Fri May 30, 2003 7:46 pm

how about this one?

Post by batman21 »

http://cgi.ebay.com/ws/eBayISAPI.dll?Vi ... otohosting

anyone know what kind of power supply I'll need for this beast?
CTAMontrose
was grem467
Posts: 1145
Joined: Mon Jul 21, 2003 12:46 pm

Post by CTAMontrose »

without the rest of the nuke transmitter, its pretty useless..

the station control even sets the output power, so unless you have a nuke you want to replace the amp on, wont do much good.
batman21
Posts: 50
Joined: Fri May 30, 2003 7:46 pm

Post by batman21 »

I'm hoping i can just fake the power control input signal. If it's just a voltage. If it's a data stream, then i'm in trouble!
CTAMontrose
was grem467
Posts: 1145
Joined: Mon Jul 21, 2003 12:46 pm

Post by CTAMontrose »

im looking in the nuke book, but the amp will need 28.6v @ 16.4amps... (atleast thats whats coming out of my 300w version)

Also the drive is 13dbm from the exciter to the IPA (1-10w out)and the PA is controlled by the exciter, and looking at the book, the TX power control voltage is a loop from the harmonic filter/coupler back to the exciter (the Tx power control circuitry, which then feeds the IPA and Final AMPs)
batman21
Posts: 50
Joined: Fri May 30, 2003 7:46 pm

Post by batman21 »

Can you give me the part number for the nuke book so i can order it? Thanks!
CTAMontrose
was grem467
Posts: 1145
Joined: Mon Jul 21, 2003 12:46 pm

Post by CTAMontrose »

the service manual was only sent to moto shops, but the user manual gets pretty detailed..

i have the 900Mhz 300w version, but the book covers the low power 900 station as well..

its part num is 68P81000F10-A
batman21
Posts: 50
Joined: Fri May 30, 2003 7:46 pm

Post by batman21 »

Does the user manual have schematics, etc, so i can replicate this power control loop, or do i need the service manual.. the service manual has no part number? thats weird
CTAMontrose
was grem467
Posts: 1145
Joined: Mon Jul 21, 2003 12:46 pm

Post by CTAMontrose »

it has a block diagram, ill dig in there later tonite and see if the connections are labled, i know on the backplane it lists the pinouts..

there was a service manual, but from what ive been told, it wasnt made available to be purchased, and even replacement modules were hard to get.. seems motorola wanted to do things themselves.
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