RTL-SDR photo Welcome to the K3FEF & W3TKP QTH!  STATUS: WILL Be EXPERIMENTING TONIGHT 1/8/2017 - Many Restarts!!
PLEASE READ: This receiver consists of multiple RTL-SDR Ver.3 dongles fed from an HF LNA attached to a G5RV antenna located in Milford, Pennsylvania - Northeastern USA. It is operated by Michael - K3FEF and his XYL, Tanya - W3TKP.
Join the K3FEF WebSDR Project Page on Facebook for chat, news, and info related only to this WebSDR.
Please note: I default to 3873 AM because that's where I typically transmit. I use a T/R relay when I transmit to protect the receiver so you may occasionally hear brief dropouts. Feel free to adjust the receiver any way you like! It will not affect other users (if you didn't already know). 73! and Enjoy!
Our current weather from our station on Weather Underground - KPAMILF08
"K3FEF Part 15" Marker is an SSTran AMT3000 low power transmitter I use to demo my vintage AM radio collection. You never know what you'll hear. :-)

TIPS: Depending on time of day, different bands perform differently! If the bands look quiet (daytime), change the waterfall "view" to "Weak Sigs". My S-Meter is calibrated and you'll notice it doesn't change when you change the waterfall view. At night, the waterfall might look better set to "Strong Sigs". Also, I DEFAULT to "AM" so make sure you choose "LSB" on the lower bands and "USB" for higher bands when listening to Amateur Radio frequencies. (Or CW is hearing morse code! And FM for 2 meter band!). If listening to any signal and you hear a continuous tone, try using the "Autonotch" setting. Finally, use the wider and narrower bandwidth controls to eliminate neighboring conversations

We are now compatible with the Android app: Pocket RxTx (Available in the Play Store - more info at https://www.yo3ggx.ro/)

More information about the WebSDR project can be found on http://www.websdr.org.
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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.
Waterfall view:
Or use scroll wheel and dragging on waterfall.

? dB; peak ? dB;
mute squelch autonotch
Signal strength plot:
Call of station that you hear:
Comments (nothing stupid!):
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).

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

This chatbox is intended to discuss the operation of the WebSDR. ** All visitors are logged.** Any use of foul or inflammatory language will result in your ip being banned - permanently. Keep it civil! Focus on spots, unique signals, conversation about the receiver, etc.
The operators of this site disclaim any responsibility for text appearing in this chatbox.