
Copyright and licensing information
======================================

This is a collection of vectorized symbols for use on the APRS system.

The copyright status of this collection is a bit complicated, since the
symbols come from various sources, each having different copyright owners.

Most of the vectorized symbols are loosely based on the low-resolution
"standard" bitmap symbol set as distributed by Stephen Smith, WA8LMF.  That
set is used by most APRS software around the world.  The low resolution of
those symbols does not allow direct vector conversion, so I've drawn new
symbols in a similar layout.  The vector versions try to mimic the original
appearance and colours, with the intention of keeping the set recognizable
and familiar to existing users.  In some cases the vector versions are
probably similar enough to the originals, so that they cannot be considered
"original work" by myself.  In some of these cases, the originals are
probably also mimicking someone else's design.

The original symbols do not come with any information on their licensing.
They've been distributed with a lot of APRS software over time, but I don't
know who designed which symbol originally. Most likely all of them are
drawn by one of:

  * Roger Barker, G4IDE, "original set provided with UI-View" (SK)
  * Steve Dimse, KH4G, "U.S. customary set"
  * Stephen Smith, WA8LMF

The Adobe Illustrator (.ai) file contains a copy of the original bitmaps
as a hidden layer, just for reference.

Some symbols I obtained from other sources, such as Wikipedia. In those
cases I picked SVG versions which allow commercial reuse (source known, and
the work is placed on public domain, or with a CC license which allows
adaptation and commercial reuse).

Some symbols are vectorized versions of product or brand logos. The
copyright of those is owned by the respective companies (Apple, Microsoft,
Kenwood), and each of those may have some opinions on how the logos are
used.  Please check for yourself if you can use them or not.

In the list below I try to summarize the licensing status for each symbol.


Shorthand notation for common licensing status
-------------------------------------------------

* *VEC-OH7LZB* - Vectorized by OH7LZB, based on original APRS symbol set
  * Source of original bitmap: http://wa8lmf.net/aprs/APRS_symbols.htm
  * Original designer of individual symbol unknown at this time, but one of:
    * Roger Barker, G4IDE
    * Steve Dimse, KH4G
    * Stephen Smith, WA8LMF
  * Vectorized versions are designed to look similar
  * Licensing: Unknown
* *OH7LZB* - Original vector design by Heikki Hannikainen, OH7LZB
  * Different enough (by author's opinion) to make it a new original work,
    instead of a copy of the old symbol
  * License: CC BY-SA 2.0
  * https://creativecommons.org/licenses/by-sa/2.0/


Primary table
----------------

* /! - Police station
  * VEC-OH7LZB
* /# - Digipeater / Green star with D in middle
  * VEC-OH7LZB
* /$ - Telephone
  * VEC-OH7LZB
* /% - DX cluster
  * VEC-OH7LZB
* /& - HF gateway
  * VEC-OH7LZB
* /' - Small aircraft
  * https://openclipart.org/detail/27182/topdown-airplane-view
  * Author: Wirelizard (Brian Burger)
  * With color and some other small tuning added by OH7LZB
  * PD: https://openclipart.org/share
* /( - Mobile satellite station
  * OH7LZB
* /) - Wheelchair, handicapped
  * PD wheelchair symbol
  * Vectorized from bitmap by OH7LZB
* /* - Snowmobile
  * https://openclipart.org/detail/15849/snowmobile
  * Author: Mystica (https://openclipart.org/user-detail/mystica)
  * PD: https://openclipart.org/share
* /+ - Red Cross
  * VEC-OH7LZB
* /, - Boy Scouts
  * VEC-OH7LZB
* /- - House
  * VEC-OH7LZB
* /. - Red X
  * VEC-OH7LZB
* // - Red dot
  * VEC-OH7LZB
* /0 to /9 - Numbered circles
  * VEC-OH7LZB
* Fire
  * http://commons.wikimedia.org/wiki/File:FireIcon.svg
  * Author: Piotr Jaworski
  * PD: I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
* Tent
  * https://openclipart.org/detail/174933/green-tent-by-stamps-174933
  * Author: stamps
  * PD: https://openclipart.org/share
* Motorcycle
  * http://commons.wikimedia.org/wiki/File:MUTCD_W8-15P.svg
  * This file is in the public domain because it comes from the Manual on
    Uniform Traffic Control Devices, sign number W8-15P, which states
    specifically on page I-1 that: Any traffic control device design or
    application provision contained in this Manual shall be considered to
    be in the public domain. Traffic control devices contained in this
    Manual shall not be protected by a patent, trademark, or copyright,
    except for the Interstate Shield and any other items owned by FHWA.
  * Colour version by OH7LZB
* /= - Railroad engine
  * http://commons.wikimedia.org/wiki/File:Icon_train.svg
  * Author: http://en.wikipedia.org/wiki/User:Richtom80
  * CC-BY-SA-2.5,2.0,1.0
* /> - Car
  * OH7LZB
* /? - File server
  * https://openclipart.org/detail/163717/file-server-by-lyte
  * Author: lyte
  * PD: https://openclipart.org/share
* /@ - Hurricane predicted path
  * VEC-OH7LZB
* /A - Aid station
  * VEC-OH7LZB
* Mail (BBS)
  * https://openclipart.org/detail/29268/yellow-mail-by-rg1024-29268
  * Author: rg1024
  * PD: https://openclipart.org/share
* /C - Canoe
  * https://openclipart.org/detail/179047/red-canoe-by-rambo-tribble-179047
  * https://openclipart.org/detail/179041/canoe-paddle-by-rambo-tribble-179041
  * Author: Rambo Tribble
  * PD: I, the copyright holder of this work, release this work into the public domain. This applies worldwide.
* /E - Eyeball
  * http://commons.wikimedia.org/wiki/File:Blue_eye.svg
  * PD: "This file is from the Open Clip Art Library, which released it explicitly into the public domain"
  * PD: https://openclipart.org/share
* /F - Tractor
  * https://openclipart.org/detail/191654/farm-tractor-by-tmjbeary-191654
  * Author: tmjbeary
  * PD: https://openclipart.org/share
* /G - Grid square, 3 by 3
  * VEC-OH7LZB
* /H - Hotel
  * VEC-OH7LZB
* /I - TCP/IP
  * VEC-OH7LZB
* /K - School
  * OH7LZB
* /L - PC user
  * OH7LZB
* /M - Mac apple
  * Apple
* /N - NTS
  * VEC-OH7LZB
* /O - Hot air balloon
  * OH7LZB
* /P - Police
  * OH7LZB
* /R - RV
  * OH7LZB
* /S - Space Shuttle
  * https://openclipart.org/detail/814/space-shuttle-by-johnny_automatic
  * PD: Published by the NASA, in "The Brain in Space"
* /T - SSTV
  * https://openclipart.org/detail/48997/flat-screen-by-rg1024
  * Author: rg1024
  * Adjusted by OH7LZB
  * PD: https://openclipart.org/share
* /U - Bus
  * OH7LZB
* /V - ATV, amateur television
  * https://openclipart.org/detail/48997/flat-screen-by-rg1024
  * Author: rg1024
  * Adjusted by OH7LZB
  * PD: https://openclipart.org/share
* /W - Wx, Weather service site
  * VEC-OH7LZB
* /X - Helicopter
  * OH7LZB
* /Y - Sailboat
  * OH7LZB
* /Z - Windows flag
  * Microsoft
* /[ - Human
  * VEC-OH7LZB
* /\ - DF triangle
  * VEC-OH7LZB
* /] - Mailbox, post office, letter
* /^ - Large aircraft
  * https://openclipart.org/detail/183204/plane-red-by-sketchartist-183204
  * Author: SketchArtist
  * PD: https://openclipart.org/share
* /_ - Weather station
  * VEC-OH7LZB
* /` - Satellite dish
  * OH7LZB
* /a - Ambulance
  * OH7LZB
* /b - Bicycle
  * http://commons.wikimedia.org/wiki/File:Bicycle_evolution-numbers.svg
  * Author: Wikipedia user: Al2
  * CC BY 3.0
* /c - Incident command post
  * VEC-OH7LZB
* /d - Fire station
  * VEC-OH7LZB
* /e - Horse, equestrian
  * https://openclipart.org/detail/142627/horse-riding-lesson-by-olku
  * Author: OlKu
  * PD: https://openclipart.org/share
* /f - Fire truck
  * OH7LZB
* /g - Hang glider
  * OH7LZB
* /h - Hospital
  * VEC-OH7LZB
* /i - IOTA, islands on the air
  * http://commons.wikimedia.org/wiki/File:Palm_Island_R.svg
  * PI
* /j - Jeep
  * OH7LZB
* /k - Truck
  * OH7LZB
* /l - Laptop
  * OH7LZB
* /m - Mic-E repeater
  * VEC-OH7LZB
* /n - Node, black bulls-eye
  * VEC-OH7LZB
* /o - Emergency operations center
  * VEC-OH7LZB
* /p - Dog(e)
  * OH7LZB
* /q - Grid square, 2 by 2
  * VEC-OH7LZB
* /r - Repeater tower
  * OH7LZB
* /s - Ship, power boat
  * OH7LZB
* /t - Truck stop
  * VEC-OH7LZB
* /u - Semi-trailer truck, 18-wheeler
  * OH7LZB
* /v - Van
  * OH7LZB
* /w - Water station
  * VEC-OH7LZB
* /x - X / Unix
  * https://commons.wikimedia.org/wiki/File:X11.svg
  * PD
* /y - House, yagi antenna
  * VEC-OH7LZB
* /z - Shelter
  * VEC-OH7LZB


Secondary table
------------------

* Emergency
  * VEC-OH7LZB
* Numbered digipeater / Green star
  * VEC-OH7LZB
* Bank
  * VEC-OH7LZB
* Numbered gateway / Black diamond
  * VEC-OH7LZB
* Crash site
  * OH7LZB
* Cloudy
  * OH7LZB
* MEO
  * VEC-OH7LZB
* Snowflake
  * http://commons.wikimedia.org/wiki/File:Snowflake_01.svg
  * Author: Wikipedia user: Amada44
  * Public Domain
* Church
  * VEC-OH7LZB
* Girl Scout
  * VEC-OH7LZB
  * Looks slightly like the common USA girl scouts logos. Should be different
    enough to not infringe on "Girl Scouts of the USA" copyrights.
* Home (HF antenna)
  * VEC-OH7LZB
* Unknown position
  * VEC-OH7LZB
* Destination
  * VEC-OH7LZB
* Numbered circle
  * VEC-OH7LZB

* Petrol Station
  * OH7LZB
* Hail
  * VEC-OH7LZB
* Park
  * VEC-OH7LZB
* Gale Flag
  * VEC-OH7LZB
* Red car from above
  * OH7LZB
* Info Kiosk
  * VEC-OH7LZB
* Hurricane
  * OH7LZB

* Numbered white box
  * VEC-OH7LZB
* Snow blowing
  * VEC-OH7LZB
* Coast Guard
  * VEC-OH7LZB
* Drizzle
  * VEC-OH7LZB
* Smoke / Chimney
  * VEC-OH7LZB
* Freezing rain
  * VEC-OH7LZB
* Snow Shwr
  * VEC-OH7LZB
* Haze
  * VEC-OH7LZB
* Rain Shower
  * VEC-OH7LZB
* Lightning
  * OH7LZB
* "Kenwood radio"
  * Kenwood logo, vectorized
* "Lighthouse"
  * CC BY-SA 2.0
  * http://wiki.openstreetmap.org/wiki/File:Lighthouse.svg
* Nav Buoy
  * OH7LZB
* Rocket
  * http://www.clker.com/clipart-gglkuglug.html
  * PD according to clker.com license
* Parking
  * VEC-OH7LZB

* Earthquake, Restaurant
  * VEC-OH7LZB
* Satellite
  * OH7LZB
* Thunderstorm
  * OH7LZB
* Sunny
  * OH7LZB
* VORTAC, Numbered WXS
  * VEC-OH7LZB
* Pharmacy Rx
  * OH7LZB
* Wall Cloud
  * OH7LZB
* Numbered plane
  * https://openclipart.org/detail/183204/plane-red-by-sketchartist-183204
  * Author: SketchArtist
  * PD: https://openclipart.org/share
* Numbered WX Station
  * VEC-OH7LZB
* Rain
  * Source: http://commons.wikimedia.org/wiki/File:Heavy-rain-shower-transparent.svg
  * Author: Wikipedia user: Peepo
  * Public Domain
  * With modifications by OH7LZB

* Numbered diamond
  * VEC-OH7LZB
* Dust blowing
  * NA
* Numbered civil defence
  * VEC-OH7LZB
* DX spot
  * VEC-OH7LZB
* Sleet
  * NA
* Funnel Cloud
  * NA
* Gale
  * VEC-OH7LZB
* Store
  * https://openclipart.org/detail/89299/cart-medium-by-martins.bruvelis
  * Author: martins.bruvelis
  * Public Domain
  * Adjustments by OH7LZB
* Numbered black box
  * VEC-OH7LZB
* Work zone / Excavator
  * Based on http://www.clker.com/clipart-292480.html PNG version
  * Vectorized and colors adjusted by OH7LZB
  * PD according to clker.com documentation, uploader KURSVEIAL
* SUV
  * OH7LZB
* Milepost, Numbered triangle, Circle sm
  * VEC-OH7LZB
* Partly cloudy
  * OH7LZB

* Restrooms, Numbered boat
 * VEC-OH7LZB
* Tornado (also used in Funnel cloud, Skywarn)
  * https://openclipart.org/detail/104887/tornado-by-laabadon
  * Author: Laabadon
  * Public Domain
* Numbered truck
  * OH7LZB
* Numbered van
  * OH7LZB
* Flooding
  * NA
* Sky warn, Numbered shelter, fog
  * VEC-OH7LZB
