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On-Screen Display in 3G Systems


Overview

On-Screen Display is a feature of Just Add Power 2G, 2GΩ/3G, and 3G Receivers. This article references Receivers in 3G Systems. Please see this article for 2G Systems.

In a 3G System, On-Screen Display shows on the top-half of the video in either the center of the screen or the left side of the screen. A command can be sent to the Receiver to show text with variations in size, color, and position.


Alignment

In a 3G System, On-Screen Display allows for center- or left-aligned text. The output resolution of the Receiver determines the relative size of the font:


Text box on 720p video


Text box on 1080p video


Text box on 4K video


Command

osd "$STRING" [-c $RRGGBB] [-s $SIZE] [-a left/center] [-t $TIME]

Variables listed in [square brackets] are optional and use the default setting if not entered. All variables are listed below:

Variable Options Example Description
"$STRING" Alphanumeric characters (A-Za-z0-9) osd "Doorbell" Text to show on the screen. Must be enclosed in quotation marks (").
-c $RRGGBB 6-character hex code indicating RRGGBB color osd "Doorbell" -c FFFFFF Example produces white text.
Default is green; 00FF00
-s $SIZE Integer from 1 to 250 osd "Doorbell" -s 75 Size of the font. Does not scale with the resolution of the video, so higher resolutions will show smaller text.
Default is 30.
-a left/center left
center
osd "Doorbell" -a left
osd "Doorbell" -a center
Alignment of the text on the screen.
Default is center.
-t $TIME Integer from 1 to 60 osd "Doorbell" -t 10 Number of seconds to show the text before disappearing.
Default is to show text until a command turns it off.

Other OSD Functions

On-Screen Displays have other functions for debugging, identification, and disabling text.osd "the string" [-c FFFFFF] [-a left/center] [-t 10] [-s 30] [-d (debug)] [-i (identify) ] [-x (off) ]

Once the options for the On-Screen Display message have been set, the message must be enabled and disabled:

Function Command Example Description
Turn Off OSD osd -x [seconds] osd -x 10 If [seconds] is specified, wait that many seconds before turning off OSD.
Example waits 10 seconds after the command is sent to turn off OSD.
Show Debug Information osd -d osd -d Shows information about the video resolution
Show Identification osd -i [off] osd -i
osd -i off
Shows IP address and hostname on EVERY Receiver in the system.
off option turns off the text.
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  • 07-Nov-2022
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