DTC COMMUNICATIONS, INC.
12
Output Attenuation
This control can be used to make minor adjustments to the output power
level, but in normal operation should not be changed from factory settings.
Video Input
This control is used to select the composite video input standard. Options
are PAL, and NTSC both with and without 7.5 IRE pedestal.
Video Bitrate
The video bit rate is automatically maximized in each configuration when
Chaining Input is turned off. This control can be used to set the video
bitrate within the constraints of capacity available in the channel, but only
when Chaining Input is set to ON.Chaining CANNOT be enabled on normal
transmitters, and as such video bit rate control is automatic.
Horizontal resolution
The video coding resolution can be selected from 704, 528, 480 and 352
pixels. Changing the horizontal resolution to lower values will make the
coded picture softer.
Care should be taken to match the horizontal resolution to the resolution
of the camera connected to the transmitter; this will give best image
results.
Audio Encoder
The Audio can be turned on and off with this control. Audio is OFF by
default, but there are several audio modes that vary from very high quality
to speech grade that can be selected with this control. Enabling Audio
encoding will degrade the video quality, because some of the available data
capacity is diverted away from video to audio. Selecting high fidelity audio
modes will degrade the video quality more than lower fidelity audio modes.
PROGRAMMING
(As Desired)
NTSC
1.1
528
OFF
Default values are shown in red.
