references.html: Fix redirects. A lot of dead links still.

1 files changed, 11 insertions, 11 deletions

diff --git a/www/references.html b/www/references.html
index 09069d04..dfe38eab 100644
--- a/www/references.html
+++ b/www/references.html
@@ -100,21 +100,21 @@ it.  This is the result.</dd>
 <dd>This is one of the sources for the above. Includes some
 information on vendor-specific quirks that we don't.</dd>
 
-<dt><a href='http://www.navcen.uscg.gov/pdf/gps/IS_GPS_200H.pdf'>Navstar
- Global Positioning Interface Specification IS-GPS-200H (2013)</a></dt>
+<dt><a href='https://www.navcen.uscg.gov/pdf/gps/IS_GPS_200J.pdf'>Navstar
+ Global Positioning Interface Specification IS-GPS-200J (2018)</a></dt>
 <dd>This is the official specification for interpreting radio
 transmission from GPS satellites. You do not need to read this
 unless you are trying to make sense of the raw 50BPS subframe
 data.  Be warned: though this specification is not evil, it
 is complex and nasty.</dd>
 
-<dt><a href='http://www.navcen.uscg.gov/pdf/gps/geninfo/2008SPSPerformanceStandardFINAL.pdf'>Standard Positioning Service
+<dt><a href='https://www.navcen.uscg.gov/pdf/gps/geninfo/2008SPSPerformanceStandardFINAL.pdf'>Standard Positioning Service
 Performance Specification</a> (2008)</dt>
 <dd>This document defines the levels of performance the U.S. Government makes
 available to civil users through the GPS Standard Positioning Service
 (SPS).</dd>
 
-<dt><a href="http://en.wikipedia.org/wiki/World_Geodetic_System">World Geodetic System</a></dt>
+<dt><a href="https://en.wikipedia.org/wiki/World_Geodetic_System">World Geodetic System</a></dt>
 <dd>Technical and historical summary of WGS84.</dd>
 
 <dt><a href='http://www.faa.gov/about/office_org/headquarters_offices/ato/service_units/techops/navservices/gnss/library/documents/media/waas/2892bC2a.pdf'>WAAS System Specification</a></dt>
@@ -134,7 +134,7 @@ href='https://www.google.com/search?q=RTCM+10402.3'>"RTCM
 10403.1"</a>.</dd>
 
 <dt><a
-href='http://www.itu.int/rec/recommendation.asp?type=items&amp;lang=e&amp;parent=r-rec-m.823-2-199710-i'>ITU-R M.823-2</a></dt>
+href='https://www.itu.int/rec/recommendation.asp?type=items&amp;lang=e&amp;parent=r-rec-m.823-2-199710-i'>ITU-R M.823-2</a></dt>
 <dd>This specification documents some of the murky depths of
 rtcm-104, the specification used for broadcasting differential-gps
 corrections. Unfortunately, its distribution terms are also evil.</dd>
@@ -165,12 +165,12 @@ information on AIS and its addenda remains otherwise difficult to
 collect from scattered and rather impenetrable standards
 documents.</dd>
 
-<dt><a href="http://www.itu.int/rec/R-REC-M.1371-4-201004-I/en">M.1371
+<dt><a href="https://www.itu.int/rec/R-REC-M.1371-4-201004-I/en">M.1371
 : Technical characteristics for an automatic identification system
 using time-division multiple access in the VHF maritime mobile band</a></dt>
 <dd>The official standard descrcribing AIS.</dd>
 
-<dt><a href='http://www.topografix.com/gpx.asp'>GPX Exchange Format</a></dt>
+<dt><a href='https://www.topografix.com/gpx.asp'>GPX Exchange Format</a></dt>
 <dd>GPX (the GPS Exchange Format) is a light-weight
 XML data format for the interchange of GPS data (waypoints, routes,
 and tracks) between applications and Web services on the Internet. The
@@ -245,7 +245,7 @@ mice.  For comparsion we also have older versions:
 href='http://gpsd.googlecode.com/files/SiRF-SiRF-v1_6.pdf'>1.6</a>
 (April 2005) .</dd>
 
-<dt><a href='http://www.element14.com/community/servlet/JiveServlet/downloadBody/13410-102-1-42402/40.Sirf%20nmea%20ref%20manual.pdf'>SiRF
+<dt><a href='https://www.element14.com/community/servlet/JiveServlet/downloadBody/13410-102-1-42402/40.Sirf%20nmea%20ref%20manual.pdf'>SiRF
 NMEA Protocol Reference Manual</a> (2.2, November 2008) </dt>
 <dd><a href='https://www.sparkfun.com/datasheets/GPS/NMEA%20Reference%20Manual-Rev2.1-Dec07.pdf'>SiRF
 NMEA Protocol Reference Manual</a> (2.1, December 2007) </dd>
@@ -258,7 +258,7 @@ extensions. Notably, it describes the commands for switching to SiRF
 binary mode.</dd>
 
 <dt><a
-href='http://www.linkwave.co.uk/assets/GPS.G2-X-01003-E1.pdf'>TIM GPS
+href='https://www.linkwave.co.uk/assets/GPS.G2-X-01003-E1.pdf'>TIM GPS
 Receiver Macro-Component (offsite link)</a> (version E1, April 2003)</dt>
 <dd> Describes the SiRFstarII chipset used by u-blox and some others.
 <code>gpsd</code> supports it. While obsolete, this file documents certain
@@ -270,7 +270,7 @@ protocol documentation.</dd>
 <code>gpsd</code> supports it.  It's been rendered obsolete by the SiRF 2
 and 3 chips.</dd>
 
-<dt><a href='http://www.ublox.com/images/downloads/Product_Docs/u-bloxM8_ReceiverDescriptionProtocolSpec_%28UBX-13003221%29_Public.pdf'>u-blox M8</a> Rev 08 (December 2014)</dt>
+<dt><a href='https://www.ublox.com/images/downloads/Product_Docs/u-bloxM8_ReceiverDescriptionProtocolSpec_%28UBX-13003221%29_Public.pdf'>u-blox M8</a> Rev 08 (December 2014)</dt>
 <dd>he u-blox M8 support GPS, GLONASS and BeiDou.
 <code>gpsd</code> supports it.</dd>
 
@@ -317,7 +317,7 @@ this very simple textual report format.</dd>
 
 <dl>
 <dt><a
-href='http://www.novatel.com/assets/Documents/Manuals/om-20000077.pdf'>Novatel Superstar II User Manual (2005)</a></dt>
+href='https://www.novatel.com/assets/Documents/Manuals/om-20000077.pdf'>Novatel Superstar II User Manual (2005)</a></dt>
 <dd>Describes the OEM board, include some good general overview
 material on GPS technology. Doesn't describe control or reporting
 commands.</dd>