Order Tray | Contact Us | Home | SIG Lists

[aprssig] 20th century radio (was: APRS MileMark data base)

Stephen H. Smith wa8lmf2 at aol.com
Mon Apr 14 17:37:07 UTC 2008


Robert Bruninga wrote:
>
> Back to the original thread...  I think it would be hard to tell
> all the local governments that using Mile-marks for locations
> along major interstates is old out-dated technology.  Because
> most of them are spending millions of dollars to maintain and
> update their milemarkers now every TENTH of a mile because of
> their tremendous value to location information for first
> responders.  It ain't high tech, but it works.  And 100% of
> every human with at least one eye can use it, not just those
> with GPS...
>
> Bob, Wb4APR
>
>
>   

Except in California where CalTrans has intransigently refused to number 
freeway exits and place milemarks on the Interstate highways for 
decades.  (They actually had some sort of grandfathered exemption from 
the Feds from the requirement to post them until recently.)  

Now they are belatedly adding exit numbers in the form of small stick-on 
"patches" in  the lower right corners of SOME of the exit signs.   


What's really funny is that my Garmin Nuvi 680 car-navigator display 
GPS  DOES show the exit mile-mark numbers in it's display of    "Next 
Exit Name   NN Miles ahead"   that don't show on the actual signs!     
As does Microsoft MapPoint & Streets 2008 on my mobile APRS laptop.

[ In other words,  in California at least,  you DO need a GPS to use 
mile marks..... ]





--

Stephen H. Smith    wa8lmf (at) aol.com
EchoLink Node:      14400    [Think bottom of the 2M band]
Home Page:          http://wa8lmf.com  --OR--   http://wa8lmf.net

NEW!   World Digipeater Map
  http://wa8lmf.net/APRSmaps

JavAPRS Filter Port 14580 Guide
  http://wa8lmf.net/aprs/JAVaprsFilters.htm

"APRS 101"  Explanation of APRS Path Selection & Digipeating
  http://wa8lmf.net/DigiPaths

Updated "Rev H" APRS            http://wa8lmf.net/aprs
Symbols Set for UI-View,
UIpoint and APRSplus:









More information about the aprssig mailing list