This page describes the ViewStation's HDS Tuner Video
client manual page.
HDS Tuner Manual Page
NAME
hdstuner - control the optional HDS Tuner television
tuner/receiver device.
SYNOPSIS
hdstuner [ -device /dev/tty1(or2) ] [ -attenuate ] [
-noattenuate ] [ -mute ] [ -unmute ] [ -antenna ] [ -cable ] [
-hrc_cable ] [ -icc_cable ] [ -finetune value (-30 to 30) ] [
-toolkitOption ... ] [ channel ]
DESCRIPTION
hdstuner can be used to control the optional HDS Tuner television
tuner/receiver. The HDS Tuner device must be attached to one of the
ViewStation's serial ports. By default, Serial Port 1 is assumed.
However, if Serial Port 2 is used instead, this can be specified using
the -device option or the HDSTuner.device X resource.
Note that the hdstuner program does not directly display the
video output. Use other programs such as hdsvid and hdssimulcast in
conjuction with hdstuner to actually display the tuner output.
The hdstuner program allows the user to scan for available
channels, select channels, and fine tune reception. The type of signal
can be selected (antenna, cable, etc) as well as the audio output level
of the HDS Tuner device. Audio mute control is also available.
The Scan For Channels button will scan through all channels
looking for an acceptable signal level. All channels found will be
added to the current list of presets. The list of presets can also be
initially configured using the HDSTuner.channelPresets X resource. In
the absence of a pre-configured list of channel presets, the user will
usually want to Scan For Channels after bringing up the HDStuner
application. Make sure the TV Input has been set appropriately before
scanning.
The Add/Delete Channel button is used to add or delete the
current channel in the preset list.
The Mute button disables the audio output of the HDS Tuner
device. The HDS Tuner.mute X resource can be used to set the initial
state of this button.
The Exit button exits the entire HDStuner application. The
state of the HDS Tuner device remains the same. The audio mute state
and selected channel remain the same. If the HDStuner application is
restarted, it will by default display the settings which had been
established previously. This default behavior can be overridden with
command line options and X resources to force a particular initial
configuration. If power is removed from the HDS Tuner device, the
previous settings are lost.
The Up Arrow and Down Arrow buttons are used to skip through
the list of preset channels. Channels which have not been scanned or
specified in the initial list of channel presets cannot be reached via
the arrow buttons. The Scan For Channels button or the direct keypad
should be used to reach such channels.
The Numeric Keypad is used to go directly to a channel,
regardless of whether it is in the current channel preset list.
The Channel Fine Tuning slider can be used to make fine tuning
adjustments. Each channel is tuned independently of the others.
The TV Input option controls which type of signal is being
provided on the Tuner's Antenna In connector. Antenna refers to standard
over-the-air frequencies. Cable refers to common CATV channels. HRC
Cable refers to Harmonically Related Carrier encoded cable signals. ICC
Cable refers to Incremental Coherent Carrier encoded cable signals.
OPTIONS
-device /dev/tty1(or2)
Indicate the ViewStation device to which the HDS Tuner is attached.
The default is /dev/tty1 for Serial Port 1. Serial Port 2 may also be
used.
-attenuate
-noattenuate
Indicate whether the Audio Out level of the HDS Tuner device
should be line level (noattentuate) or microphone level (attenuate). By
default, the hdstuner program will automatically set the Tuner's audio
output level to match the Input Device level on the ViewStation's
hdsaudio client.
-mute
-unmute
Indicate whether the Tuner's audio output should be initially
muted.
-antenna
-cable
-hrc_cable
-icc_cable
Set the TV Input for the tuner.
-finetune value
(-30 to 30)
Set the initial finetune value for tuner. Value ranges from -30 to
30.
-toolkitOption ...
Set any standard Xt Intrinsics toolkit option. These include
the -display and -xrm options.
channel
Set the initial startup channel for the tuner.
X RESOURCES
In addition to the usual Xt and Motif resources, the hdstuner
supports the follow ing application specific resources:
HDSTuner.device:
/dev/tty1 | /dev/tty2
Specify the serial port to which the tuner is attached. The
default is Serial Port 1, /dev/tty1.
HDSTuner.tvInput:
antenna | cable | hrc_cable | icc_cable
Specify the type of the video signal attached to the Antenna
In. The default is the previous setting or antenna.
HDSTuner.audioLevel:
automatic | line | microphone
Specify the level of the Tuner device's Audio Out connector.
Since the Audio Out connector is normally attached to the ViewStation's
Audio In connector, the default level is automatically set to match the
ViewStation's HDSaudio Input Device level. The Line and Microphone
levels can also be set directly.
HDSTuner.channelPresets:
channel:finetune ...
Give an initial list of channels the the tuner to use a
presets. This avoids the need to scan for channels and also allows the
user to have the most-viewed channels available at startup. Each entry
has a channel number and a finetune value separated by a colon. The
finetune value must be between -30 and 30.
Example:
HDSTuner.channelPresets: 3:0 6:0 10:0
HDSTuner.channel:
channel_number
Specify the initial channel for the tuner.
HDSTuner.fineTune:
value
Specify the initial finetune value for the tuner.
HDSTuner.mute: True | False
Specify whether the tuner's audio output should initially be
muted.
SEE ALSO
hdsaudio(1) hdssimulcast(1) hdsvid(1)
COPYRIGHT
Copyright 1995, HDS Network Systems, Inc.
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© 1996 by HDS Network Systems
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