[aprssig] Re: UIDIGI vs KPC-3+
Ron Perry
ronk at sunlinux.com.au
Sun Aug 1 23:03:58 EDT 2004
Also Site Alert can be used with uidigi
http://www.aprs.net.au/Site%20Alert%203%20Web_2.htm
Regards
Ron
On Fri, 2004-07-30 at 13:58, Stephen H Smith wrote:
> Dave Kaplan wrote on 7/29/2004, 8:03 PM:
>
> > Anyone want to help me come up with a "Top 10 List with to use UIDIGI
> > rather than a KPC-3+"
> >
> > Dave
> > WB0WNX
>
> I can't think of TEN reasons but the major ones are:
>
> 1) Cheaper if you can pick up an old MFJ1270 at a swapmeet (I've got
> three for an average of $30 each.)
>
> 2) Custom settings (callsigns, paths, beacon texts, etc) are "frozen in
> stone" in the eprom (can't get lost from power failures, accidental
> resets, etc).
>
> 3) More comprehensive dupe supression and "preemptive" digipeating
> algorithms.
>
> The main downsides to TNC2/ui-digi:
>
> 1) Higher DC power consumption (100s of mA compared to under 10mA for a
> KPC3+). May be relevent if you are trying to run a digi from batteries
> and solar panels in a remote location.
>
> 2) No true DCD that distinguishes data from voice or noise on a channel
> (makes it very difficult to run a TNC2 open squelch, or on a mixed
> voice/data Mic-E repeater -- KPC3 or KAM works perfectly on open squelch).
>
> 3) Can't use the TNC to monitor channel activity; UI-digi doesn't echo
> received data out the serial port. If you want to see what the
> UI-digi system is hearing, you have to connect a second TNC with
> conventional firmware in parallel across the receive audio. (KPC3+ can
> function as a digipeater, and be used with a program like UI-View,
> APRSplus, etc at the same time.)
>
>
>
> Stephen H. Smith wa8lmf (at) aol.com
> Home Page: http://wa8lmf.com
>
>
>
>
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