Northern Utah WebSDR Logo - A skep with a Yagi
Utah SDR WX

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Donate to the Northern Utah WebSDR
The Northern Utah WebSDR is a non-profit 501c(3) organization

The Northern Utah WebSDR now has a YouTube channel - see it here!
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Northern Utah WebSDR - Server #1
2200-40 Meters - Omnidirectional antenna

This WebSDR is located near Corinne, Utah, about 80 miles (94km) north of Salt Lake City and about 14 miles (23km) east of the Golden Spike National Historic Site.  

The Northern Utah WebSDR system has coverage on all U.S. amateur HF, MF and LF bands, 2 meters, the bottom 1 MHz of 6 meters, and several shortwave broadcast bands - see the Technical Info page for more details.

This server (Yellow) covers lower-frequency bands:

  • 2200 and 630 meters - active with groundwave out to about 700 miles/1000 km during the day and skywave with much greater distances at night.
  • 160 and 80/75 meters, active during local nighttime.
  • 40/60 meters which may be active day and night.
Check the band conditions at the bottom of the web page.

  • For 30, 20, 17, 15, 12, 10 and 6 meters on Omni antennas use WebSDR #2 (Green).
  • For 40, 30, 20, 17, 15, 12 and 10 meters using an east-pointing beam antenna check out WebSDR #4 (Magenta)
  • For 30, 20, 17, 15, 12 and 10 meters using a northwest-pointing beam antenna check out WebSDR #5 (Teal)
These server/antenna combinations may be accessed using the band selections below.
The 2021/2022 User Survey has finished and you may see the results here.
To invoke this page with a preset frequency and mode, append "/?tune=(freq kHz)(mode)" to the URL and save it as a bookmark as in: http://[WebSDR's URL]?tune=7200lsb

Additional URL parameters are described on the "FAQ" page here.

If you find that CatSync doesn't work with this WebSDR, add "?10hz" to the URL. There may be other issues with CatSync - read here.


Remember: If you don't do something (e.g. retune, adjust bandwidth, volume) this WebSDR will time out after 120 minutes. If it does time out, refresh the browser.

On-site KiwiSDR receivers are now available for testing - see the Kiwi FAQ page for more information.

Cloud Lightning Bolt Ever wonder where some of those loud static crashes are coming from? A look at the blitzortung.org U.S.A. lightning map may help answer the question!

Other WebSDR systems:

Western U.S.:  KFS, Half-Moon Bay, CA 

Eastern U.S.:   K3FEF, Milford, PA, NA5B near Washington DC, N4BBQ, Dalhonega, GA

More information about the WebSDR project, including a list of WebSDRs worldwide, can be found at http://www.websdr.org.


The Northern Utah WebSDR Landing Page

Everything you wanted to know about the Northern Utah WebSDR system!

About this WebSDR and contact info
and
Terms and Conditions of use
Technical Information
Latest News and known issues
Northern Utah WebSDR FAQ
Scientific research
Automatic computer audio muting for your HF transceiver.

Stop being driven crazy by the echo and eliminate the need to manually mute the WebSDR audio when you transmit with this easy project!

Find out more!

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Having AUDIO PROBLEMS with a WebSDR?

If you see a "Chrome audio start" or "Safari audio start" button below, Click on it!

If that doesn't work, read this article.


Please log in by typing your name or callsign here (it will be saved for later visits in a cookie):
It seems you are using a mobile device; click here to switch to the mobile version of this site.

View: others slowone bandblind
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
m: mute/unmute audio
s: toggle squelch
Waterfall:JavaHTML5   Sound:JavaHTML5

Frequency: kHz    Mode: ?    VFO:  A   (B: 231.00 kHz LSB)
Enter frequency above, or tune by clicking/dragging/scrollwheel on the frequency scale. freq???
   VFO:
Use the = kHz button to snap to the nearest kHz.    
2200M 630M 160M AM-160M-120M 80-75M 60M 40M
The bands in bold use high-performance receivers.  Please use only one server at a time!
Use the buttons below to select other band and antenna combinations

Other receivers on Omni antennas


Clicking a band above will switch to the  Green WebSDR (#2)


Clicking on a band above will switch to the  Blue WebSDR (#3) 

Receivers on the East-pointing beam


Clicking a band above will switch to the  Magenta WebSDR (#4)

Receivers on the Northwest-pointing beam


Clicking a band above will switch to the  Teal WebSDR (#5)

VHF/UHF receivers located in the Salt Lake metro area


Clicking a band above will switch to the  Salt Lake metro WebSDR

Memories:
(new)
Memories are stored as cookies on your computer, not on the server.

Bandwidth:
?:   2.80 kHz @ -6dB; 3.26 kHz @ -60dB.  Default BW in bold.
 USB CW RX: Check box, or put  ?usbcw  in the URL for USB CW reception.
  CW uses a center frequency of 750 Hz and LSB by default.


PassBand Tuning (PBT):
Use buttons to select BW/mode or drag passband edges on frequency scale. PBT/IF Shift by Weert Websdr.
Logbook:
Call of station that you hear:
Comments, if any:
Time, frequency, your name/call, and DXCC information are added automatically.
View the last 20 lines of the logbook, or the entire logbook (opens new tab/window).


[scale]
? dBm  Peak ? dBm  
 S-meter squelch:  Off        
  
Volume:
   No audio? Press Firefox/Mozilla audio start button!

Mute Squelch Notch1
Notch2 High Boost
 DSP Noise Reduction:
More info about Noise Reduction, Notch2 & High Boost here

Audio buffering:
  More buffering may help with drop-outs or slow/jittery connections.
  Vari-Notch (Hz):   Off

   CW Peak (Hz):   Off    Ref. Tone


Gain control:   
RF AGC Alt AGC Manual
Gain:
Try "Alt AGC" for better AM reception, particularly with QSB.

devpk dev_avg dev_pkavg   

Audio recording:

Audio channel: Left Both Right

Sig. strength plot:
Waterfall view:
Or use scroll wheel & dragging on waterfall.
Speed:
Size:
View:
Hide labels
Toggle "Hide labels" if labels are missing.



There were 150 users on the Northern Utah WebSDR system (WebSDRs 1-5) as of Thu Jan 9 07:40:01 PM MST 2025.
WebSDR #1 had 78, WebSDR #2 had 37, WebSDR #3 had 13, WebSDR #4 had 21 and WebSDR #5 had 1 users.
This server up 9 weeks, 4 days, 10 hours, 20 minutes

?      compact view


Statistics:

? devpk dev_avg dev_pkavg freq???
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