Karl, that's not correct. The PacComm TNCs can easily be modified for open
squelch operation -- There's a version of the TAPR kit available for it, or
even easier, PacComm sells a pre-assembled board for about the same price as
the kit that drops right in -- that's what I use in all the Tiny-2s that I'm
running.
Also, the TCM-3105 chip uses a pure noise-based DCD, so it has horrible
DCD performance without the addition of the "state machine" DCD fix.
John N8UR
[EMAIL PROTECTED]
----
In message <[EMAIL PROTECTED]>, "Karl F.
Larsen" writes:
>
> No, this shows that I own 5 PacComm Tiny-2 TNC's that use the
>Texas Instruments modum that can not be modified. I am NOT lazy or stupid.
>
>
>On Sun, 9 May 1999, Brett Mueller wrote:
>
>} Karl wrote:
>} > Hi John, I have adjusted the RX side of the tnc-2 this way for 12 years
>} > and have great success. Open the squelch on the receiver and with no
>} > signal present on the frequency, decrease the audio level until the DCD
>} > light is just "on" solid. Close the squelch and go home.
>}
>} This shows that you have not bothered to modify your DCD circuits to only lo
>ck
>} in on data transmissions (N7CL mod), thus enabling the use of open squelch o
>n
>} your receivers. For those people who have performed this extremely simple
>} alteration to their TNC-2's (and it *is* a worthwhile mod), your procedure
>} helps not at all...
>}
>} 73,
>}
>} Brett
>}
>
>Best wishes
>
> - Karl F. Larsen, [EMAIL PROTECTED] (505) 524-3303 -
