Differences

This shows you the differences between two versions of the page.

--- tech [2026/03/24 06:17] – neds
+++ tech [2026/03/24 06:39] (current) – neds
@@ Line 189: / Line 189: @@
 </WRAP>
-==== Tuning a virtual channel (TECH3-6CC only) ====
+==== Tuning a virtual channel (TECH3-CC only) ====
 <WRAP indent>
@@ Line 497: / Line 497: @@
 </WRAP>
+</WRAP>
 </WRAP>
+===== HTTP Streaming (TECH3-CC only) =====
+<WRAP indent>
+TECH3-CC models can be used to stream via HTTP (unicast only) to VLC or other clients.
+<WRAP indent>
+<code>
+Format: http://<ip address of device>:5004/auto/v<vchannel number>
+Example: http://10.10.10.2:5004/auto/v721
+</code>
+</WRAP>
+</WRAP>
+===== Lineup file (TECH3-CC only) =====
+<WRAP indent>
+TECH3-CC units support virtual channel lineup information transmitted by the cable provider and received via the CableCARD. This is available in XML and JSON format.
+<WRAP indent>
+<code>
+http://<ip address of device>/lineup.xml
+http://<ip address of device>/lineup.json
+</code>
+</WRAP>
+</WRAP>
+===== Datacast operation =====
+<WRAP indent>
+TECH3 units support Datacast TCP/IP over OTA broadcast. Datacasting often provides news, weather, traffic, stock market, and other information which may or may not relate to the program[s] it is carried with. An electronic program guide is usually included. Datacast TCP-IP packets are reassembled and then routed to the LAN port.
+Example:
+Discover the device:
+<WRAP indent>
+<code>
+hdhomerun_config discover
+</code>
+</WRAP>
+Set the physical channel:
+<WRAP indent>
+<code>
+hdhomerun_config FFFFFFFF set /tuner0/channel auto:651000000
+</code>
+</WRAP>
+Set the datacast PID:
+<WRAP indent>
+<code>
+hdhomerun_config FFFFFFFF set /tuner0/filter 0x0A00
+</code>
+</WRAP>
+Set the target:
+<WRAP indent>
+<code>
+hdhomerun_config FFFFFFFF set /tuner0/target datacast
+</code>
+</WRAP>
+</WRAP>
+===== Using /sys/boot =====
+<WRAP indent>
+The /sys/boot variable allows the TECH unit to automatically set variables at startup, allowing you to preserve settings across power outages or simply set the power on defaults.
+The syntax for the /sys/boot consists of multiple lines of text; a variable name followed by a single space and then the value: (there should not be any space before the variable name)
+<WRAP indent>
+<code>
+<variable1> <value of variable1>
+<variable2> <value of variable2>
+...
+<variableN> <value of variableN>
+</code>
+</WRAP>
+Example (save as boot.txt):
+<WRAP indent>
+<code>
+/tuner0/channelmap us-cable
+/tuner0/channel 103
+/tuner0/program 4
+</code>
+</WRAP>
+To store the configuration to the device:
+<WRAP indent>
+<code>
+Format: hdhomerun_config <id> set /sys/boot - < filename
+Example: hdhomerun_config FFFFFFFF set /sys/boot - < boot.txt
+</code>
+</WRAP>
+Changes will be applied the next boot; to execute the new /sys/boot immediately:
+<WRAP indent>
+<code>
+Format: hdhomerun_config <id> execute
+Example: hdhomerun_config FFFFFFFF execute
+</code>
+</WRAP>
+==== Static IP assignment ====
+<WRAP indent>
+A static IP address can be configured using the following command (the quotes are required as shown):
+<WRAP indent>
+<code>
+Format: hdhomerun_config <old ip> set /sys/ipaddr "<new ip> <subnet> <gateway>"
+Example: hdhomerun_config 169.254.34.98 set /sys/ipaddr "10.10.20.43 255.255.255.0 10.10.20.1"
+</code>
+</WRAP>
+Note: The TECH requires a gateway when used to stream multicast, even if on the same subnet.
+</WRAP>
+==== Reverting to DHCP ====
+<WRAP indent>
+The TECH can be configured for DHCP operation (default) using the following command:
+<WRAP indent>
+<code>
+Format: hdhomerun_config <old ip> set /sys/ipaddr dhcp
+Example: hdhomerun_config 169.254.34.98 set /sys/ipaddr dhcp
+</code>
+</WRAP>
+</WRAP>
+</WRAP>
+===== Setting the channel map =====
+<WRAP indent>
+The channel map is a non-volatile configuration option that is used to set the channel to frequency table, to configure the channel scan table, and to optimize the auto-modulation detection.
+GUI: The channel map can be set for each tuner by running HDHomeRun Config (GUI).
+Command line: The channel map can be set for each tuner using the following command:
+<WRAP indent>
+<code>
+Format: hdhomerun_config <ip|id> set /tuner<n>/channelmap <channelmap>
+Example: hdhomerun_config 10001000 set /tuner0/channelmap us-cable
+Example: hdhomerun_config 10001000 set /tuner1/channelmap us-cable
+</code>
+</WRAP>
+Channel maps supported by HDHR-TECH-US hardware:
+<WRAP indent>
+^ Name ^ Description ^ Location ^
+| us-bcast | Digital Antenna (ATSC). | US, Canada |
+| us-cable | Digital Cable - Normal frequency layout. | US, Canada |
+| us-hrc | Digital Cable - HRC frequency layout. | US, Canada |
+| us-irc | Digital Cable - IRC frequency layout. | US, Canada |
+</WRAP>
+Channel maps supported by HDHR-TECH-EU hardware:
+<WRAP indent>
+^ Name ^ Description ^ Location ^
+| au-bcast | Digital Antenna (Australia). | Australia |
+| au-cable | Digital Cable (Australia). | Australia |
+| eu-bcast | Digital Antenna (Europe). | Europe, New Zealand |
+| eu-cable | Digital Cable (Europe). | Europe, New Zealand |
+| tw-bcast | Digital Antenna (Taiwan). | Taiwan |
+| tw-cable | Digital Cable (Taiwan). | Taiwan |
 </WRAP>