--- In [email protected], Mike WA6ILQ <[EMAIL PROTECTED]>
wrote:
"There's an article on that at www.repeater-builder.com on the
Motorola page.
I've heard a few stories third hand - unconfirmed - that getting the
PL decode to work properly is a moire difficult than anything else (at
least one version of the firmware had bugs there), and that adding a
TS32 or TS64 decoder is easier than trying to upgrade / change the
firmware.
Mike WA6ILQ"
___________________________________________________________________-
The article on the Motorola page at repeater-builder.com refers to the
R-1800 programmable CLB station, not the CXB station [so called
'digital' which refers to the 12Kbps securenet digital
capability]which the original poster inquired about.
The issue that some hams have with MSF PL decode is that there is no
circuit point to tie to that is a PL indicator since that function is
performed by the MPU. A logic output can be obtained by decoding the
appropriate MUXBUS bit with a wildcard, an E&M site interface, or a
homebrew circuit, but in most cases that is not necessary.
Just because you want to use PL and your external controller has a PL
input does not mean you have to hook something up to it. All you
really need is a logic signal connected to your controller's COR input
that indicates the station receiver is active.
Any AND / OR squelch audio gating configuration you are trying to
achive can generally be established in the MSF receiver qualifiers
programming.
The easy interface for the CXB stations is still the 600 ohm station
wirelines plus the programmable I/O pins. The MRTI phone patch
interface can be used if you really like to work harder.
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