This HF WebSdr is located at the Nantwich Secret Nuclear Bunker, formerly R.A.F. Hack Green, now a working museum.

Location: ( 53° 1' 53'' N / -2° 31' 4'' W) QRA= IO83RA. / NGR SJ64590-47875

Operated by the Stoke-on-Trent ARS, SysOps are Joe ZL1PMY, Tony G1HMO and Martin G7CKX

Any queries regarding this websdr please contact 'hackgreensdr at gmx.com'

We also have a VHF/ UHF websdr at Hack Green, you can view it here :- http://hackgreensdr.org:8902

For mobile devices, you can access the mobile version of this websdr here

Notices:



Hack Green hangar sale:- Sunday 6th April 2025, doors open 10:00am, tea coffee and snacks available.
Traders and enquiries contact Rodney on 01270-262610 or coldwar@hackgreen.co.uk


17/10/2024 - The firewall at the websdr site had failed, I replaced it on 17/10, so hopefully everything should now be ok again.

30/07/2024 - There is an issue with the microwave link feeding Hack Green, every 5 minutes packet loss is occuring, the cause is currently being investigated.

Thanks to everyone that has kindly donated, and to the very kind SDRUtah folks, our new webSDR now uses 6 x SDRplay RSP1A receivers and a fast Dell R630 server.

If you would like to donate to help pay the electricity bill and allow us to further improve the websdr please do so below.

Note:

Most recent browsers support HTML5 audio, if you don't hear anything, check the security permissions in your browser and make sure that they are set to 'ALLOW' autoplay of sound, and not set to 'DEFAULT' which does not autoplay.
You will also need to have JavaScript enabled for the websdr to work properly.



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
Waterfall:JavaHTML5   Sound:JavaHTML5


Frequency: kHz

Band: 160m 80m 60m 40m 20m 17m

Or tune by clicking/dragging/scrollwheel on the frequency scale.

Memories:
(new)
Bandwidth:
? kHz @ -6dB; ? kHz @ -60dB.
Or drag the passband edges on the frequency scale.
Waterfall view:
Or use scroll wheel and dragging on waterfall.
Speed:
Size:
View:


[scale]
? dB; peak ? dB;
mute squelch Notch1
Notch2 High Boost
DSP Noise Reduction:
Volume:

Audio recording:

Signal strength plot:
Logbook:
Call of station that you hear:
Comments, if any:
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

Chatbox:

As with the HF websdr, the chatbox has been removed due to inappropriate posts by certain individuals.


Statistics: