Northern Utah WebSDR #3

Utah SDR WX
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The Northern Utah WebSDR is a non-profit 501c(3) organization

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 uses four servers to cover 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.

Covered by this server:

The 2 meter amateur band using 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 counties - which includes the areas from Salt Lake to north of Brigham City.
The 90, 41, 31, 25 and 19 meter shortwave broadcast bands.
Also provided by this server is redundancy for the very popular 80/75 and 40 meter amateur bands if WebSDR1 (Yellow) goes offline, using these lower-performance receivers. 30 meters happens to be covered by the "31-30" meter receiver as well.

The 2022 User Survey has finished - Watch this space for results.

For Salt Lake City area coverage on 2 meters and 70cm look for the Salt Lake Metro buttons, below.

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 parameters:
?zoom=n  Zoom "n" times (0-9)
?squelch=1  Enable squelch
?nolabels=1  Hide freq. labels
?altagc=1  Select alt AGC algorithm (for AM)

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 W7RNA, Phoenix, AZ AI6VN, Maui, HI

Eastern U.S.: K3FEF, Milford, PA, NA5B near Washington DC, N4BBQ, Dalhonega, GA and N4BUT, Orlando, FL

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

Technical Information

Latest News and known issues

Northern Utah WebSDR FAQ

Audio problems with Apple devices/Chrome/Safari?

Follow us on Facebook!

If you are hearing a "warble" or "stuttering" when listening to CW or digital signals, try using Firefox instead of Chrome - Read here for more information about this problem.

Notice:
Software testing underway - Expect occasional interruptions and/or issues with the sound or page loading.

Currently testing:

Reworked DSP noise reduction and notch filtering
Improved tuning resolution
Synchronous AM reception
CW Peak filter
Vari-Notch - Manually-tunable notch filter

For more information about these changes, read the Latest News page.
If you wish to comment about these modifications, please do so via the link at the bottom of the About this WebSDR and contact info page.

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.

Frequency: kHz    VFO: ?
Enter frequency above, or tune by clicking/dragging/scrollwheel on the frequency scale. freq???
Mode:  ?
   VFO:
Use the = kHz button to snap to the nearest kHz.

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):

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

WebSDR #4 uses a Non-Rotatable directional antenna with a heading of 87° true (East).
Clicking a band below will switch to the Salt Lake metro WebSDR:

Memories:

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

Bandwidth:
? 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.

Logbook: 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).

? dBm  Peak ? dBm ?
S-meter squelch:

devpk dev_avg dev_pkavg

Mute Squelch Notch1
Notch2 High Boost

Vari-Notch (Hz): Off

CW Peak (Hz): Off Ref. Tone

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.

Volume:

Gain control:
RF AGC Alt AGC Manual

Gain:

Try "Alt AGC" for better AM reception, particularly with QSB.

Sig. strength plot:

Waterfall view:

Or use scroll wheel & dragging on waterfall.

Speed:
Size:
View:

Toggle "Hide labels" if labels are missing.

There were 31 users on the Northern Utah WebSDR system (WebSDRs 1-4) as of Mon 16 May 2022 05:12:01 AM MDT.
WebSDR #1 had 18, WebSDR #2 had 4, WebSDR #3 had 3, and WebSDR #4 had 6 users.

Statistics:

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

The hamqsl.com solar information has been temporarily(?) removed due to problems with their server.

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