Or water cool it ...
Neil
Alexander N Tubonjic wrote:
>
> I quess I forgot the part about the current repeater output, it's
> currently putting out 55 watts and has 3 muffin fans blowing across
> the PA. 110 watts from the Mitrek, wow! I think the PA would be about
> the temperature of the surface of the Sun after a few minutes. I am
> thinking about backing the power back to 35 watts next time I am at
> the repeater site. Thanks.
> Alexander
>
> --- In Repeater-Builder@yahoogroups.com, "skipp025" <[EMAIL PROTECTED]> wrote:
> >
> > > "Alexander N Tubonjic" <[EMAIL PROTECTED]> wrote:
> > > I am going to be changing a repeater setup a bit and
> > > I think it will work, I would like to get some feedback
> > > from you guy's and see what yall think. Here goes:
> > > The current setup is as follws:
> > > Duplexed 110 Watt Mitrek into controller and Duplexer,
> > > Nothing really fancy.
> >
> > Are you really blowing 110 watts out of a same chassis
> > duplexed mitrek mobile and not getting and desense? One
> > would think the in cabinet desense would be pretty
> > brutal. Not to mention the required blowers/fans on
> > the heat sink to try and keep things cool enough.
> >
> > > What I want to do:
> > > Add a second Mitrek in line and have the new one
> > > act as RX only and have the current 110 Watter act
> > > as the TX.
> >
> > A better option if you plan to run the 110 watt tx
> > full tilt with fans on the PA. The 110 watt pa should
> > be stable running from 40 - 110 watts, so you can
> > reduce the output for more sane heat sink temp control.
> >
> > > Now my questions are,
> > > can you run the Mitrek with only one channel element
> > > in it (i.e. can I run the TX Mitrek with only the TX
> > > element and the RX Mitrek with only the RX element
> > > in it?)
> >
> > Sure, not problem
> >
> > > Will I be able to make the Duplexed Mitrek act as
> > > only the TX or would I have to undo the duplex mod?
> >
> > Yes, it should work and you shouldn't have any
> > problems with the duplexed rx side of the tx
> > radio.
> >
> > > Like I said, in my mind it should work but I am
> > > not sure. Any thoughts/comments would be appreciated.
> > > Thanks.
> > > Alexander
> >
> > good luck... Turn the 110 watt pa down to 80 watts
> > and it should run a long time. Yeah it will work at
> > 110 watts, but it's not worth the gamble if you don't
> > have a lot of spare parts and you're not using serious
> > blowers/fans with real bearings (ie not cheap plastic
> > sleeve bearning computer fans).
> >
> > cheers,
> > skipp
> >
>
>
> Yahoo! Groups Links
>
>
>
>
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