Northern Utah WebSDR Logo - A skep with a Yagi
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Northern Utah WebSDR - Server #3

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.

This 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 (blue) covers 2 meters, the 90, 41, 25 and 19 meter shortwave broadcast bands and the "new" 2200 and 630 Meter amateur bands along with the so-called 1750 meter "LowFer" band:  You can read more about these receivers here.  Also provided is redundancy for 80/75 and 40 meter coverage, allowing this server to cover these (the most popular bands) if WebSDR1 (Yellow) goes offline, using these lower-performance receivers.

2 Meter coverage:  The 2 meter receivers use a preamp and a 5 element Yagi pointed (more or less) south, allowing reception of many repeaters and stations in the Salt Lake, Davis, Weber and Box Elder and nearby counties which includes the area from Salt Lake to north of Brigham City.

The "2200M/1750M" receiver is operational using a shielded H-loop antenna.  This antenna casts a deep null >=20dB due north/south of the WebSDR's site to eliminate a local noise source in the 2200 meter band, but this null should have little impact on signals from the east or west.

Firefox users:  Since (about) February, 2019, new versions of the Firefox browser have an issue where opening a new tab may cause the audio to stop: This problem has been reported.

Other than to refresh the web page, there currently no work-arounds to restart "stopped" audio, but it is possible to prevent this from happening in some cases: If you wish to open a link from the tab running the WebSDR, right click on the link and select "Open Tab in New Window" rather than click on the link.

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://ip.address/?tune=7200lsb

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.

Does the echo of your transmitted audio from the WebSDR drive you crazy? This circuit may help!

Other WebSDR systems - Western U.S.:  KFS, Half-Moon Bay, CA.  Eastern U.S.:   K3FEF, Milford, PA, NA5B near Washington DC and N4BBQ, Dalhonega, GA.
More information about the WebSDR project, including a list of WebSDRs worldwide, can be found at

About this WebSDR and contact info
Technical Information
Latest News and known issues
Northern Utah WebSDR FAQ
Audio problems with Chrome/Safari?
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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      Mode:  ?
Enter frequency above, or tune by clicking/dragging/scrollwheel on the frequency scale.

Use the = kHz button to snap to the nearest kHz.      Use the Squelch when receiving FM signals.
The lower-performance 90-80M and 41-40M bands provide redundancy for the 80/75 and 40 meter bands on WebSDR1.

The bands in bold use high-performance receivers.  Please use only one server at a time!
Clicking a band below will switch to the Yellow WebSDR (#1):

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

Memories are stored as cookies on your computer, not on the server.

? dBm    peak ? dBm
mute squelch autonotch
Audio buffering:
  May help with drop-outs and/or slow/jittery connections.
Sig. strength plot:
Waterfall view:
Or use scroll wheel and dragging on waterfall.
? kHz @ -6dB; ? kHz @ -60dB.  Default BW in bold.
PassBand Tuning (PBT):
Use buttons to select BW/mode or drag passband edges on frequency scale. PBT/IF Shift by Weert Websdr.
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).

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

Actual CPU utilization percentage is 1/4th of the value shown above.

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