Palomar Amateur Radio Club STEM Experimentation Lab


📡 OpenWebRX+ Operating Instructions

The Receiver Panel is the most complex control panel.

The main selection controls for SDRs/frequency bands and modes are shown below.

Receiver Panel Mode Selections
SDR and Band Profile Selection dropdown menu
Audio Decoder Mode Selection buttons
Digital Decoder Mode Selection dropdown menu
Mode Selection Information OpenWebRX+ Audio and Digital Modes
Receiver Panel Controls
New Bookmark
The button on the upper right pops up a bookmark entry dialog:

Manually enter the name. The frequency and modulation type (including digital) are auto-filled but can be edited prior to saving.

Saved bookmarks displayed:

Tuning Step
The button resets tuning step to 1Hz. Drop-down box selects tuning step.
Use the drop-down box to select the desired tuning step. From 1Hz to 50kHz. Tune by scrolling the mouse wheel or by using the tuning buttons.
Waterfall Colors
Button auto-adjusts waterfall colors. Slider adjusts waterfall minimum level.
Slider adjusts waterfall minimum level affecting colors.
Waterfall Colors
Button resets waterfall colors. Slider adjusts waterfall maximum level.
Slider adjusts waterfall maximum level affecting colors.
Audio Level
Button mutes/unmutes audio. Slider adjusts the audio level.
Slider adjusts audio level.
Squelch
Button auto-sets squelch. Slider adjusts squelch level.
Slider adjusts squelch settings.
Noise Reduction
Button toggles noise reduction on/off. Slider adjusts level.
Slider adjusts amount of noise reduction.
Display Range Controls
+ and − buttons zoom the waterfall in or out. + and - buttons zoom the waterfall one step.
↔ and ⤚⤙ buttons zoom to maximum or minimum. Sinusoid button turns on signal strengh display. REC button starts audio recording. Signal level is along the bottom.