No problem Alex, you should normal up the system
and route the output of tx 6 to another lower test
antenna through/from its respective combiner bp
cavity before the N-way box (& cap the unused box
port). Don't forget to disable the rx system preamp.
****
I was an FTR for "big M Radio Company" Service
Stations for man years.
One thing we all knew was how quick the sales folks
would sign off on a project that promissed the moon.
... as long as the sales (and engineering) person got
paid or made the sale possible. After that it was
all finger pointing...
The pain in the a$$ is when there are lots of
problems to point your fingers at. You probably have
more than one gator by the tail. If the numbers
don't score any direct imd or mix hits, you can
have better hope for a practical solution...
cheers,
skipp
> "vintageaudio2004" <[EMAIL PROTECTED]> wrote:
> > "skipp025" <[EMAIL PROTECTED]> wrote:
> > I've had some time to think about your VHF Tx/Rx
> > trunking system problems. It appears from a distance
> > you bought a turnkey system put together from
> > Commercial Antenna Combiner System Packages (ie
> > the typical Tesco or Talley Catalog method). The
> > Telewave hardware in the transmit path and the
> > Sinclair unit in the receive path. It's my opinion
> > the equipment was probably picked from catalogs by
> > spec and probably not specifically engineered as a
> > high performance system.
>
> Hi Skipp,
>
> Just wanted to let you know that altough the design of
> the system was put togheter pretty much as you mention,
> a full schematic drawing of the whole system design
> was submitted to each vendor, and all of their engineering
> dept. gave us the ok to use the chosen components. They
> also independently ran a IM analysis test and stated that
> there where no low order hits. Not trying to be defensive
> in any way, but just wanted to make it clear that this
> was not some kind of half-blind catalog shopping spree.
>
> Anyway we apreciate very much your suggestions and comments,
> and will probably go with additional filtering. Still
> any other aditional suggestions and comments from you or
> the group will always be very welcomed.
>
> Thanks again.
> Alex
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