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
>
>
>
>
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