Welcome to the KFS WebSDR HF radio receiver system located 6 miles south of Half Moon Bay, California; maintained by Craig, W6DRZ, e-mail w6drz@arrl.net.
A technical description, operating tips, propagation information, and a donation opportunity can all be found on the ABOUT page.
More information on the worldwide WebSDR project can be found on www.websdr.org.
Note: On older browsers you need both Java and JavaScript enabled for this page to work properly. For a detailed discussion, click here.

(2 Jan) As of the New Year, this system has been renamed KFS WebSDR to better reflect its history and location.
(27 Oct) Compact view of user display is now forced during the evening due to abuse.
(12 Dec) Thank you to DK4CA, K6MET, W7RNA, NN6A, N6PJB, K6JEK, W6YDG, WW6D, AEA Inc, and K8OLS for their recent donations.
(25 Dec) Happy Holidays from Craig (W6DRZ) and Joan (XYL).

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.

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

Frequency: kHz

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


? dBm, peak ? dBm
mute squelch autonotch
Signal strength plot:
? kHz @ -6dB; ? kHz @ -60dB.
PassBand Tuning (PBT):
Or drag the passband edges on the frequency scale. PBT & IF Shift code by Weert Websdr.
Waterfall view:
Or zoom with scroll wheel.
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.

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

Server Statistics: