> "vintageaudio2004" <[EMAIL PROTECTED]> wrote:
> > The above is a bpbr duplexer, not a pre-selector. You
> No, the TPCP-1546C is a preselector, take a look:
> http://www.telewave.com/pdf/TWDS-2006.pdf
> I think you are confused with the TPRD-1546C which is
> indeed a duplexer.
Actually what pops up is how you access Telewaves web
page from google or how they cross part numbers. No biggie,
we're both on the same page now.
> I must have been reading your mind. Yesterday I was going
> again over the specs of the TPCP-1546C, and came across
> that "C" which stands for [Compact]. So I though that since
> we really don't have much of in a way of size constrains,
> why possibly put compact size ahead of better performance,
> and found the TCPC-1556 which is a full size cavity
> Preselector.
Compact used to mean less performance... but everyone is
getting really good at squeezing high specs out of smaller
bottles. If you have enough Q, you have enough...
> So basically we still would rather go one step at a time,
> not that I want to dismiss your great advise, or don't
> fully appreciate and now also understand your suggestions,
> but since this way we are going to be able to apply each
> solution at a time, that would enable us to re-evaluate
> the system, determine how far it improved, and then decide
> if we need additional filtering, by also taking into account
> our customers real needs. Not that I would not love to buy
> all the stuff at once and get it over with, and I would
> also be very happy if this system could be honed to absolute
> perfection.
I understand... when I'm not footing the bill, I'll also be
happy to suggest a full size hot tub for the installers. :-)
> Another important consideration is that we also need to put
> our feet on the ground in respect to the price tags of the
> added filtering,
I was about to offer up that you include an expresso bar at
the site. Won't do much for the radio system but you'd work
a lot faster.
> so going in steps seems also to be the right decision in that
> angle. Don't really want to add it up unless it would be
> strictly required, as any additional expenses, unforeseen as
> they may have been, will in this case have to come out of our
> own pockets.
Bingo...
> As of now I just placed an order for the TCPC-1556, and asked
> them to close the window to narrowly just let pass our Rx
> range, and put maximum rejection on the Tx range. Also to make
> the skirts as steep as it be practically possible, even if
> insertion losses grow to 3-4dB, or maybe even a bit more. Coping
> with them on the Rx side should be relatively painless, easy
> to compensate, and as you pointed out earlier, well worth. I'll
> keep you posted of any new developments.
The TCPC unit might be enough...
> Have a great day, and thanks again for your excellent advise.
>
> Saludos,
> Alex
Let us know how things work out Alex.
cheers,
skipp
skipp025 at yahoo.com
www.radiowrench.com
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