Ah, ok. You're covered.
Neil
Eric Lemmon wrote:
>
> Neil,
>
> Yes, I bought as many MICOR manuals as I could before they went out of
> print. Fortunately, though, the TLD1692D info is available in MICOR
> manuals that Motorola Parts still has in stock.
>
> 73, Eric Lemmon WB6FLY
>
> Neil McKie wrote:
> >
> > Hey Eric,
> >
> > You have the manual on the TLD1692D PA Deck?
> >
> > If so, good.
> >
> > If not lemme know ...
> >
> > Neil
> >
> > Eric Lemmon wrote:
> > >
> > > Mike,
> > >
> > > If you're looking for a "commercial-grade" repeater, buy a TKR-740
> > > rather than a TKR-750, or a TKR-840 instead of a TKR-850.
> > >
> > > The Kenwood TKR-x50 repeaters are their economy, low-tier repeaters that
> > > do quite well at construction sites and non-demanding applications. As
> > > integrated, full-duplex transceivers, they are comparable to Motorola's
> > > GR-1225 repeaters. While they ARE offered commercially, they are of
> > > modest quality. Such repeaters have a number of useful features and are
> > > fairly reliable, but neither Kenwood nor Motorola is even suggesting
> > > that they are their "top-of-the-line" offerings. I wince at any
> > > suggestion that such repeaters are even considered for public-safety
> > > service.
> > >
> > > I have experience with both TKR-750 and TKR-740 repeaters, and there is
> > > NO comparison. The TKR-740K3 is a fantastic machine in Kenwood's
> > > high-tier line, light years ahead of the TKR-750K2, for 2m service. The
> > > TKR-740 is a 1U rack-mount unit that does NOT contain a power
> > > amplifier. It is essentially a full-duplex receiver and exciter that
> > > can output a drive signal between 100mW and 5W. Most of the
> > > public-safety agencies in my county use TKR-840 repeaters in a simulcast
> > > system, since it has a an input for a 10 MHz GPS reference signal. My
> > > current project is the marriage of a Kenwood TKR-740K3 repeater with a
> > > Motorola TLD1692D 100W power amplifier. It was an easy task to adjust
> > > the power output of the TKR-740 to 500mW (+26.99 dBm) to drive the PA,
> > > and there is a TXS output already in place to key the A- line input on
> > > the PA. Unfortunately, the TKR-740 receiver cannot properly respond to
> > > a Motorola reverse burst, but that is a deficiency that I can live
> > > with. (Geez, I wish Ham radios could encode and decode reverse burst!)
> > >
> > > It's true that a TKR-740K3 costs about $2,200 to the TKR-750K2's $1,100,
> > > and the former does not include a power amplifier, but the quality and
> > > feature differences are significant. Caveat Emptor!
> > >
> > > I personally prefer Motorola products, and the MTR2000 is my preference
> > > for an excellent repeater, but I have to give Kenwood credit for the
> > > excellent design and execution of the TKR-740 and TKR-840 repeaters.
> > >
> > > 73, Eric Lemmon WB6FLY
> > >
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> > >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
>
>
> Yahoo! Groups Links
>
>
>
>
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