[aprssig] APRS for Field Day using TEMPn-N

[Robert Bruninga]

We could really make this FD a true APRS special event!

Remember, a lot of the need for LOTS and LOTS of digi's
is because APRS range is QRM limited, not RF limited in
many areas.  A few well placed TEMPn-N mobiles parked 
on hills or mountains could add hundred miles of coverage.

Back in the early days, it was 3 hops from Virginia to
NY, now there are over 70 digis along the way and
it is nearly impossible.  Also FD sites make an effort
at putting up a good antenna, not operating on a whip
on the ground.  So we really can make an ad-hoc network
wor very well.

There are many many FD sites in my area, and I am 
always torn as to which one to support with APRS.
Maybe this time I should go find a group in the
mountains.  Or take the kids camping and lone it
just to find the best VHF spot (so my TEMPn-N digi
helps the most other statiosn)

On the other hand, maybe all I have to do is find 
those clubs that do go 'high' and remind them to
park a D700 as a TEMPn-N digi.  Yes, that will do
it.  Now, how to get to and find those groups...
We must chat this up, make evreyone aware!

>>> bruninga at usna.edu 05/03/06 11:13 AM >>>
APRS FD: 
http://www.ew.usna.edu/~bruninga/aprs/fd2006.html

Again, this year, I have prepared an APRS FD web
page that recommends all FD stations to do two things:

1) Have a conventional portable station on 144.39
to show them what APRS is all about. (no points, but
it works!)

2) Set up a TEMPn-N system for FD APRS operations
for the 100 bonus points and operate on 145.01 if
available in your area.  And, of course, do these things:

a) Set all D700's to support TEMPn-N (always)
b) Set your home station to 145.01 (if avail) and support
    TEMPn-N
c) Get all old timer packet operators to also place their  
home stations on 145.01 (if avial) and set their 
MYALIAS to TEMP1-1 and BEACON VIA TEMP1-1,TEMP7-7

or TEMP1-1,TEMP1-1,TEMP1-1

Remember, there is no harm in leaving all D700 mobiles
all the time configured to support TEMPn-N.  Normally 
they will do nothing on 144.39.  But if ever needed for
any purpose at any time, then someone can send a
packet via TEMPn-N and get through a well placed D700
mobile.

To set your D700 mobile to support TEMPn-N always,
use a PC on the serial port to set
UITRACE TEMP
UICHECK 10
DIGI ON

Now then also make sure that in the APRS MENU that
you do *NOT* have any items listed at all, because 
they should not be used routinely.  And since you want
to leave DIGI ON all the time to support TEMPn-N, you
do not want to have anything here in UIDIGI.

de WB4APR, Bob





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