This is a WebSDR Receiver located in Shreveport, Louisiana, using experimental software engineered by PA3FWM (thank you Pieter!). This software is not currently publicly distributed. More information about the WebSDR project can be found on   This receiver is operated by W5ZA, email: wa5itw(at)

Equipment currently consists of a single SoftRock Ensemble II receiver feeding a Xonar D1 soundcard, using a 2.4 GHz Celeron computer. Linux OS used is now Lubuntu. No preamp is used. The antenna is a vertical wire dipole, suspended approximately 16 meters from the ground.

A few operational tips:

Enlarging the screen waterfall display offers a much easier receiver to tune and monitor. Do this easily by simply increasing the web page size to fill your monitor screen by using the zoom feature offered by your browser. Use the "zoom" buttons on the receiver display located beneath the waterfall settings to achieve a very useful "bandspread" function (you may also place the cursor on the waterfall and use the mouse wheel). To see another frequency segment while zoomed in, click and hold on the waterfall itself and slide the display left or right (works in "zoom" modes only). Using narrow bandwidths is easier when the display is zoomed in. To tune instantly, click on the tick marks area immediately beneath the waterfall to go there. To tune quickly, click and hold immediately below the yellow indicator and slide up or down the band. To "Fine Tune," simply use your mouse wheel anywhere in the frequency dial. Frequency may also be entered directly in the "frequency box." Frequencies may be stored for recall in "Memories."

Please feel welcome to use the Log feature for logging beacons heard; this record may be used for analysis, so please log only beacons and as many as you like. Clicking the mouse wheel to open a log for viewing will avoid closing the receiver.

Operation may be intermittent until a remote site is secured. Weather may also intervene due to frequent thunderstorms in this area. Links below open in another window or tab:

Shreveport Doppler Radar       The WJ5O Beacon List       NCDXF/IARU Beacon Transmission Schedule

Solar Cycle to Date     GOES Xray flux (5min)     Estimated Planetary K-index     27-day Forecast (flux,geo indices)    Ovation Auroral Forecast     Earth: Jet Streams (@250 hPa level)     6-hr Sfc Forecast map     Churchill Streaming Aurora Cam

NOTE: you need both Java and JavaScript enabled for this page to work properly on IE, and you must also add each receiver's url to your Java "Configure">Security>Exception Site List. This is no longer the case for recent (HTML5) Chrome, Firefox, Opera, and Safari browsers. Mobile versions are also now available upon Connect for IOS (Safari) and Android (Firefox); simply tap the button.

Recording and Download of received audio is available for HTML5 browsers (not Safari)-see controls. Real-time Graphing of signal strength is also available for these, and for IE as well. Keyboard control of the receiver page has also been implemented.

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Allow keyboard:
j k ← →: freq down/up (+shift/ctrl/alt faster)
u l c a f: USB, LSB, CW, AM, FM
z Z: center/zoom waterfall
g: enter frequency

Frequency: kHz

Or tune by clicking/dragging/scrollwheel on the frequency scale.

? kHz @ -6dB; ? kHz @ -60dB.
Or drag the passband edges on the frequency scale.
Call of station that you hear:
Comments, if any:
Note: time, frequency, your name/call, and DXCC information are added automatically.
View the last 20 lines of the logbook, or the entire logbook (ctrl-click for new tab/window).
Waterfall view:
Or use scroll wheel and dragging on waterfall.

? dB; peak ? dB;
mute squelch autonotch
Signal strength plot:

This WebSDR is currently being used by ? user(s) simultaneously:      compact view

This chatbox is intended to discuss the operation of the WebSDR.
The operators of this site disclaim any responsibility for text appearing in this chatbox.