WebSDR 3cm Kriens by HB9TLX
3cm WebSDR in Kriens by HB9TLX with RTL-USB Stick: click to see location JN47DA
Operated by Admin HB9TLX e-mail: hb9tlx@bluewin.ch  Other WebSDR servers at www.websdr.org
Strong signals from the nearby station will cause some interference (horizontal lines).
Click for more Information

You are using a smartphone. Click here to go to the mobile version of the 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.
Bands:
Allow Keyboard
j k ← →freq. down/up (+shift/ctrl/alt faster)
u l c a fUSB, LSB, CW, AM, FM
W wfilter wider/narrower
z Z ^Zcenter/zoom waterfall
genter frequency
b Bchange band
m V vmute, volume up/down
Waterfall:JavaHTML5   Sound:JavaHTML5

Background Picture ON/OFF
testtest
testtest
Band



Filters: 2.70 kHz @ -6dB; 3.16 kHz @ -60dB
Memories
3637.00 kHz LSB
(new)
BW
kHz
-2.76
-0.15
...

SNR
16
dB
MUTED
SQL
ANF1
ANF2
NR
AGC OFF


Frequency Tuning & Mode
Waterfall Settings
Type
Size
Speed
Hide labels
Tube & DSP & Audio
Magic Eye: Off Max
Mute
Squelch
Autonotch
Notch-2

DSP Noise Reduction:
Hi-Boost
Volume:   -2dB
Manual Gain
Gain:
Audio recording:

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