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how about this one?
Posted: Wed Oct 22, 2003 6:40 am
by batman21
http://cgi.ebay.com/ws/eBayISAPI.dll?Vi ... otohosting
anyone know what kind of power supply I'll need for this beast?
Posted: Wed Oct 22, 2003 11:52 am
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.
Posted: Wed Oct 22, 2003 11:53 am
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!
Posted: Wed Oct 22, 2003 12:07 pm
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)
Posted: Wed Oct 22, 2003 12:27 pm
by batman21
Can you give me the part number for the nuke book so i can order it? Thanks!
Posted: Wed Oct 22, 2003 12:29 pm
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
Posted: Wed Oct 22, 2003 12:31 pm
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
Posted: Wed Oct 22, 2003 12:34 pm
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.