WebSDR Server

Since 2013 (Formerly in Waller, Texas)
Currently Located in Gatesville, Texas

Current WebSDR Hardware: (02/2023)
Receivers: 3 X Nooelec SMArt TCXO USB Dongles 1 X NooElec Ham it Up Plus TCXO v1.3 Upconverter
           Antenna: MW/80M/40M Band: Prototype Active RX Loop 
Computer System: Upgraded Dell 537MT, Intel(R) Core(TM)2 Quad CPU Q9400 @ 2.66GHz. OpenSuSE Linux 12.3

Current Hardware Built and Maintained by Chris KF5JMD
For Help with this Server email KF5JMD2020@gmail.com. This Email is up to date and is working.
More information about the WebSDR project can be found on http://www.websdr.org

Best WebSDR Servers:
Thanks to Skywave Linux for listing this WebSDR as one of the best WebSDR Servers. https://skywavelinux.com/best-sdrservers.html


03/26/2020 Updated an Email Address in case users need to contact admin of this WebSDR Server: KF5JMD2020@gmail.com

09/28/2023 Added 4th Receiver, set it for now to 20 Meters Band. It may drift off Frequency as it is NOT a TCXO Receiver, the other 3 are TCXO. Also will likely be adding 10/11 Meters to this WebSDR soon.

02/05/2023 Switched to an old Prototype Active Receive Loop Antenna I had built like 5 years ago. WORKS FANTASTIC compared to the Endfed that was plauged with hashing noise from something local. This is located right in the middle of a city with all kinds of noisy stuff everywhere!

01/22/2023 Currently this WebSDR is located 2 miles North of Ft. Hood Army Base, and 15 miles West of SpaceX Rocket Test and Training Facility (near Macgregor, TX) in Gatesville, TX.

Sometimes you won't hear much here, or not what you expect. Usually this is because of wacky Propagation stuff. Below is a good link to use to get a general idea of what current propagation is like.
For Current Band Propagation charts for this WebSDR's area, check the Region 6 Army MARS Consolidated Space Weather page:

The WSPR Propagation Reporting Map is also a really good way to see what band is doing what for this area (Houston, TX / Gulf Coast area) Eventually I'd like to setup WSPR reporting on this WebSDR Server. If it was an option years ago I'd have done it then!


Big thanks to WebSDR user Jeff for a generous donation for the WebSDR. Will be getting those new batteries for the UPS's ordered this weekend, been needing those for a while.
Also thanks to WebSDR user Peter for his generous donation.

If you would like to donate some equipment or funds, please email me Chris @ kf5jmd2020@gmail.com

*NO SOUND IN CHROME?* Click "Start Chrome Audio" green button at very bottom of the screen (Scroll all way to bottom) If Chrome Browser is detected Button will show there.

*NO SOUND IN FIREFOX?* The newer versions of Firefox require you to click the website icon (in the URL Bar/Box) Click on "Connection is Not Secure", Click "More Information:, a window pops up, click on "Permissions" scroll down to "Autoplay" change the setting to "Allow Audio and Video". Close the Window, you may have to refresh/reload the site once, from then on when you visit this WebSDR your Audio will WORK IN FIREFOX!

*CHROME MOBILE VERSION Cannot Change Bands Added Instructions when Chrome Mobile Browser Detected to go back to this page, Tune to a Frequency in Each Band, Store it as a Memory(In the Freq/Band section on this page), Memory Channels will appear as Button in Mobile Version, allowing you to effectively CHANGE BANDS!

It seems you are using a mobile device; click here to switch to the mobile version of this site.
It seems Java is not installed or disabled on your computer. You need to install and/or enable it for this website to work properly.
Since Java version 7u51, Java needs to be enabled separately for each website; see http://websdr.org/java.html for instructions.
Your browser does not seem to support HTML5 WebAudio; please try a recent version of Firefox, Chrome, Opera or Safari; or switch to Java.

* Please leave Waterfall View set to ONE BAND at a time to reduce Bandwidth Usage * NO SOUND? See Notes above to fix sound
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.


? dB; peak ? dB;
mute squelch autonotch
Signal strength plot:
? kHz @ -6dB; ? kHz @ -60dB.
Or drag the passband edges on the frequency scale.
Waterfall view: Or use Scroll Wheel of Mouse and Drag Mouse on Waterfall Display

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.
This WebSDR Server's userslog (with IP Addresses) Click here * userslog.txt * updated every 1 minute (you will need to manually refresh/reload the file)

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).