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[ui-view] RE: [aprssig] Fixing HID problems on APRS!

Robert Bruninga bruninga at usna.edu
Mon Jul 26 15:46:26 UTC 2004


Sorry, did not mean for it to sound like I was accusing
UIview of anything.  Yes, it only applies if KISS is not
used.  But if those UIview TNC INIT files are used, then 
they should have HID OFF and CWID OFF in them.

Thanks, Bob

>>> ve7gdh at rac.ca 7/26/04 11:33:09 AM >>>
Bob WB4APR wrote 26/07/2004 6:03:03

> Apparently UIview does not do this (*** turn HID off)
> and that is why we are seeing this large growth
> in HID QRM.

Original message was in the APRS SIG. I'm CCing my reply to the UI-VIEW
list as well.

The recommended configuration in UI-View32 is to run the TNC in KISS
mode. For those that don't know, this turns the TNC into just a modem
with all the smarts being in the program, with no regard to the
parameters that would be in effect if the TNC was being used in terminal
mode. Blaming the most popular APRS program (which you probably don't
use) for "a large growth in HID QRM" is an unjustified blanket
statement.

However, if for some reason the user isn't using the TNC in KISS mode,
it's easy to modify the file that sends parameters to the TNC on
start-up and add HID OFF, but again, KISS mode is the much preferred
mode. I will probably never use a TNC with UI-View32 not in KISS mode,
but for what it's worth, I edited all of the "command" files (e.g.
KTRONICS.CMD) to add HID OFF to the list of parameters that would be
sent to the TNC if the file was ever used. Maybe adding CWID OFF would
also be a good idea! (Yes, there is a digi in my area that sends out a
CW identification.) I agree that it would be a good idea if the "stock"
command file came with HID OFF already in there, but again, KISS mode is
the preferred mode. To use the internal digipeater in UI-View32, the
program must be set for KISS, BPQ or AGWPE. I'm not familiar with BPQ or
AGWPE, so I don't know what the implications are there, but if one of
these three modes is not selected, the only way the TNC would digipeat
would be
  if it was commanded to digipeat before the user fires up UI-View32.

If you are seeing "HID QRM" from UI-View users in your area, the real
problem is that they enabled digipeating in their TNC without disabling
HID before starting UI-View. The simple fix is to get them to run the
TNC in KISS mode. There are seldom any good reasons to not run the TNC
in KISS mode in UI-View, but it should take someone that is used to
editing a text file about 30 seconds to add HID OFF to the command file
for their TNC, and changing to KISS mode in UI-View shouldn't take much
more than 10-15 seconds.

Don't blame Henry Ford for all of the traffic fatalities. Blame the
driver. It's an HID problem, not a UI-View problem. Running the TNC in
KISS mode as is recommended, there is no problem.

73 es cul - Keith VE7GDH
--
"I may be lost but I know exactly where I am"



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