--- In Repeater-Builder@yahoogroups.com, "Kevin Bednar" <[EMAIL PROTECTED]>
wrote:
> Scott,
> After you pulled and bypassed the final, what was the lowest
power you
> could get out of it while still being stable? I'm thinking about
doing
> the same to a VHF maxtrac to use as an exciter for a cont duty PA,
but
> it only needs about 400mw to drive it to full output. Thanks.
>
> Kevin
> K2KMB
>
Hi Kevin,
That is a very good question. I didn't try adjusting the PO as it
fell right about where I wanted it. I received the service manual
and schematic for it yesterday and had just a few minutes to look it
over last night. It would appear that the 1-10 watt version is
basically what I have made, the 45 watt PA up through the driver,
which is now the final. Same transistor but a few capacitor value
changes. If this is the case, Motorola rates this as a 1 to 10 watt
radio. I would think you should be able to lower it to 1 watt. You
may have to go back a stage to get your 500 mW.
I seem to recall someone else's post that indicated thay had used
the input to the PA module which gave them 700 mW. You might want
to look for this post.
73,
Scott Madison, WN1B
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