Using a Nooelec RTL Dongle with Nooelec v1.3 upconverter connected to a wellbrook loop antenna facing North/South.
Using another Nooelec RTL Dongle with v1.3 upconverter connected to a Loop Facing East/West.
You can widen the filters to gain better sound quality and narrow them to avoid adjacent qrm.
Absolute:1242, Talksport:1053, BBC 5 live: 909 or 693, BBC R4: 198. 1737 is LPAM
The Mobile version of this site can be found here http://grimsbysdr.ddns.net:8073/m.html
Tip For Mobile users: If you directly enter the frequency 20khz on the mobile site you can tune MW/LW via the E/W Loop: To get back to the N/S loop enter 2100khz.
More info can be found at the bottom of the page.
If you type your name into the box below the flags then it will show your nickname instead of IP address in the user box at the bottom of the page.
|Or use scroll wheel and dragging on waterfall.|
This chatbox is intended to discuss the operation of the WebSDR.
The operators of this site disclaim any responsibility for text appearing in this chatbox.
No audio in Google Chrome fix: http://hackgreensdr.org:8901/Chrome.pdf
Update: September 11th: RAI Radio closed their MW frequencies, 657,900 etc..
Update: April 27th: Magic 1161 stopped broadcasting. On April 30th the transmitter was switched off at around 13.55.
Update: Early September: Antenna reflector at Gold London 1548 broke, meaning reception was made possible in Grimsby.
Update: 31-08-20: 1161 changed from Greatest Hits Radio to Magic.
Update: 16-03-20: BBC Radio Norfolk 855khz ceased broadcasting, it now carries a retune loop till 9th April when it will be then shut down, BBC Norfolk is still available on 873khz
Update: 24-02-20: BBC Radio York 666/1260 ceased broadcasting, these frequencies carry a retune loop till 6th April then the transmitters are turned off forever :(
Update: 23-12-19: Turned the NW/SE loop further towards the South so signals are slightly better on 648, 873, 1332 etc.
Update: 07-01-19: Viking 2 1161 rebranded to Greatest Hits Radio.
Update: 31-12-18: Belgium ceased broadcasting on 621 and 1125 at 19.00 utc. Netherlands ceased broadcasting on 1008 at 00.00 UTC
Update: 16-09-18: Added extra filter options to the mobile site & added manual gain control to the desktop site.
Update: 23-06-18: Added a second loop facing West, this is good for RTE 252, BBC 198 & 909 and Absolute 1215.
Update: 19-06-18: Local Absolute Radio Transmitter on 1215 was switched off just after 11.03AM, 1215 is now better on the West facing loop as the signal comes from Huddersfield.
Update: 11-03-18: Raised the Whip antenna by about 2 Meters, this has increased it's sensitivity a little.
Update: 11-01-18: BBC Humberside ceased broadcasting on 1485khz at 12:07pm. TX Switched off for good 29-1-18 at 2:01pm.
Update: 04-01-18: BBC Lincolnshire ceased broadcasting on 1368khz at 11:03am. TX switched off for good 30-1-18 at 11:15am.
Update: 14-09-17: Built a new PC just for hosting the websdr with 4GB ram and an AMD 6400 3.7ghz dual core processor. Server can now handle 80 simultanious users.
Update: 14-09-17: Added LW/MW Via omni directional whip antenna
Update: 25-06-17: Added 48M shortwave, but I can not do much about the local QRM sadly:(
Update: 22-05-17: Changed the acer laptop that I first used to set up the WebSDR that kept freezing for a used HP DC-8000 mini desktop, the server can now handle 40 simultaneous users. Total server downtime was around 4 hours.
November 27th 2016, WebSDR first came online hosting just the LW/MW Band via an Acer Laptop.
More information about the WebSDR project can be found on http://www.websdr.org.