> >>>
> >>>kbednar99 <[EMAIL PROTECTED]> wrote:
> >>>I'm using a Motorla Maxtrac for a 2 meter remote
> base, currently
> >>>running 40 watts. I have a PA from a Mastr II
> cont. duty base, that
> >>>only needs .5 watt for 110 watt output. Anyone
> know of an easy way to
> >>>drop the power down on the Maxtrac? These radios
> wont really go down
> >>>below 10 watts, and get very flaky under that.
> I'm thinking about
> >>>bypassing the final amp stage on the Maxtrac, as
> the 2nd stage maxes
> >>>out at about 3 watts to drive the PA to 30 watts.
> Anyone done this
> >>>before, or have any other ideas? TIA to all.
> >>>Kevin
> >>>K2KMB
> >
There's some good ideas that have been given so far,
and they will probably work fine. My thought is to
look at the PA itself and see if there is a stage or
two you can bypass and run the 40 watt Maxtrax direct
to the finals of the PA.
IIRC, and I'm not a MASTRII man, it seems that the
first board in the PA boosts the 200 mW to 25-40 watts
to drive the final PA transistors. Couldn't you bypass
that board, hooking full Maxtrac power to that point?
Your final output power could then be adjusted by
setting the Maxtrac power.
If this could work, all that should be needed is to
remove the jumper in the PA from the 40 watt stage to
the 100 watt stage, and remove the input and bypass it
to the 100 watt finals.
Some of you MII people chime in here. I'm going to
look for a book today and see if this would work.
If this won't work, no flames please, like I said I'm
not an MII expert, but I do play one on TV. :)
Joe
__________________________________
Do you Yahoo!?
New and Improved Yahoo! Mail - Send 10MB messages!
http://promotions.yahoo.com/new_mail
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/Repeater-Builder/
<*> To unsubscribe from this group, send an email to:
[EMAIL PROTECTED]
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
