Operational since 2013, this WebSDR is located at Phoenix, Arizona - originally at Sedona,Arizona until 2021. SDR software for this site is provided by Pieter-Tjerk, PA3FWM. (Special Thanks to Clint and the folks at the Utah SDR, for extra audio and other features.) For more information about WebSDRs worldwide, visit http://www.websdr.org.

Phoenix"Kiwi" SDR - 1.6 to 30MHz
Other Western US WebSDRs (Recommended) KFS SDR (Half Moon Bay) and Northern Utah SDR and AI6VN, Maui, HI
>>>>>NOTE: Daytime Interference on 75/80m band is RFI from neighborhood solar panels.<<<<<

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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

>>>This WebSDR currently has ? user(s)<<<
RTL-SDR Bands:(MHz)

Frequency: kHz
You may also tune by clicking/dragging the scrollwheel on the
frequency scale. (On "AM," Steps are .1,1,and 5kHz)

Preset Bands/Freqs:


SW Broadcast:

My Memories:

? dBm; peak= ?dBm

Mute Squelch Notch1
Notch2 High Boost
DSP Noise Reduction:
additional audio buffering
  (For slow/jittery data connections.)
Signal strength plot:

? kHz@-6dB / ? kHz@-60dB
(You can also adjust bandwidth by dragging passband edges on the freq scale.)
Bandpass Freq Shift:

Waterfall Zoom & Speed:
(Or use scroll wheel and dragging on waterfall.) View:  

To renew your Cache, press "Control-Shift-R."

Operating Hints for this Receiver:
-- When you sign in, the "Memories" function will recall and display your previously saved frequencies, modes, and bandwidth settings.
-- You can use the space bar to mute/unmute this rcvr. If you hold your keyboard's "CTRL" key down while clicking on the SDR "Mute" box, your spacebar becomes a mute/unmute control.
-- If the orange tags are wrong or missing from the tuning dial - it can happen - just place your curser in the waterfall and left-click. Voila!

-- You can directly open this WebSDR with a specific frequency and mode using a customized link. For example,"http://w7rna.dyndns-remote.com:8901/?tune=5000" tunes to 5000kHz WWV.