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- APRS SYMBOL OVERLAY and EXTENSION TABLES in APRS 1.2 3 Apr 2017
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- ---------------------------------------------------------------------
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+ APRS SYMBOL OVERLAY and EXTENSION TABLES in APRS 1.2 17 Jun 2018
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+ ------------------------------------------------------------------------
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- BACKGROUND: Since 1 October 2007, overlay characters (36 per symbol)
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- are allowed on all symbols. Since the master symbol document,
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- http://aprs.org/symbols/symbolsX.txt page only has one line per symbol
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- character this overlay list gives us thousands of new symbol codes.
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+ BACKGROUND: Since October 2007, overlay characters (36/symbol) are
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+ allowed on all symbols. This allows thousands of uniquely specified
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+ symbols instead of the original 188 (94 primary and 94 alternate).
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+ But the master symbol document, http://aprs.org/symbols/symbolsX.txt,
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+ only has one line per symbol. So this added overlay list below gives
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+ us thousands of new symbol codes.
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+
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+ 17 Jun19: Added several overlays for RAIL symbol
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03 Apr17: Added Methane Hazard symbol "MH"
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13 Feb17: Added Ez = Emergency Power (shelter), Cars: P> = Plugin
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S> = Solar powered. Moved Ham club C- to Buildings Ch.
@@ -54,8 +58,8 @@ of unique overlay definitions:
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\u - Overlay Trucks. "Tu" is a tanker. "Gu" is a gas truck, etc
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\< - Advisories may now have overlays
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\8 - Nodes with overlays. "G8" would be 802.11G
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- \[ - \[ is wall cloud, but overlays are humans. S[ is a skier.
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- \h - Buildings. \h is a Ham store, "Hh" is Home Depot, etc.
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+ \[ - \[ was wall cloud, but overlays are humans. S[ is a skier.
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+ \h - Was Ham store, Now Overlays are buildings "Hh" Home Depot, etc.
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4 Oct 2007. ORIGINAL EXPANSION to OVERLAYS ON ALL SYMBOLS
@@ -94,8 +98,9 @@ small subset of alternate symbols. Those original overlayable
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alternate symbols were labeled with a "#" and called "numbered"
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symbols. (UIview requires "No." in the symbols.ini file)
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- STATUS OF OVERLAYS 1 OCTOBER 2007: the APRS symbol set only had a
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- few remaining unused symbol codes that had not yet been defined:
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+ STATUS OF OVERLAYS 1 OCTOBER 2007: the APRS symbol set was limited
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+ to about 94 symbols and only had a few remaining unused symbol
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+ codes that had not yet been defined:
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OF THE 94 Primary Symbols. The following were available:
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10 symbols (/0 - /9) that mostly look like billiard balls now
@@ -107,7 +112,7 @@ OF THE 94 Alternate Symbols. The following were available:
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8 series \1 through \8 that can support 36 overlays each
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3 reserved series.
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- ADDITIONAL OVERLAY PROPOSAL : But any of the other 79 alternate
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+ BASIS FOR OVERLAY EXPANSION : But any of the other 79 alternate
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symbols could all have multiple (36) overlays if they can make sense
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with the existing underlying basic symbol that we have been using for
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that basic alternate symbol. That is, any new definition of a
@@ -128,7 +133,7 @@ letting that define a new graphic just for that combination.
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The following tables will attempt to keep track of these and
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any other useful generic applications of overlay characters.
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- AMPLIFIED some existing ALTERNATE SYMBOL Overlays: (new Aug 2014)
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+ AMPLIFIED some existing ALTERNATE SYMBOL Overlays: (Aug 2014)
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change Flooding #W to include Avalanche, Mudslide/Landslide
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Update #' name to crash & incident sites
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Update \D (was available) to DEPOT family
@@ -178,6 +183,7 @@ MO = Manned Balloon (2015)
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TO = Teathered (2015)
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CO = Constant Pressure - Long duration (2015)
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RO = Rocket bearing Balloon (Rockoon) (2015)
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+ WO = World-round balloon (2018)
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BOX SYMBOL: #A (and other system inputted symbols)
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/A = Aid station
@@ -197,8 +203,9 @@ BUILDINGS: #h
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/h = Hospital
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\h = Ham Store ** <= now used for HAMFESTS
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Ch = Club (ham radio)
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+ Eh = Electronics Store
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Fh = HamFest (new Aug 2014)
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- Hh = Home Depot etc..
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+ Hh = Hardware Store etc..
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CARS: #> (Vehicles)
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/> = normal car (side view)
@@ -345,6 +352,26 @@ S% = Solar
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T% = Turbine
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W% = Wind
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+ RAIL Symbols: #=
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+ /= = generic train (use steam engine shape for quick recognition)
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+ \= = tbd (use same symbol for now)
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+ B= = Bus-rail/trolley/streetcar/guiderail
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+ C= = Commuter
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+ D= = Diesel
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+ E= = Electric
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+ F= = Freight
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+ G= = Gondola
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+ H= = High Speed Rail (& Hyperloop?)
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+ I= = Inclined Rail
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+ L= = eLevated
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+ M= = Monorail
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+ P= = Passenger
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+ S= = Steam
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+ T= = Terminal (station)
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+ U= = sUbway (& Hyperloop?)
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+ X= = eXcursion
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+
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+
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RESTAURANTS: #R
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\R = Restaurant (generic)
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7R = 7/11
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