WebSDR Maasbree sysop messages:
• April 19: The higher 17m-10m bands are made available on the HF High WebSDR: sdr.websdrmaasbree.nl:8902
• April 12: The loop antenna is rotated about 90 degrees to minimize the electric fence pulses.
• March 29: The GNUradio noise blanker (on 80m only) is set a bit more aggressive. Especially during the day we receive multiple very strong electric fence pulses. The very strong pulses are not completely blanked. A weaker part of it can leak through.
• March 12: The antenna is updated with a new mast pipe and an improved PCB version of the broadband loop amplifier.
• March 4: We had a major fiber-optic internet outage this morning and last night, sri.
• Febr. 19: One wind turbine lost his blades in the storm. The other one is approximately in the direction of the null of the loop antenna.
• Febr. 18: Noise (qrm) every 40kHz on 80m/60m is caused by two new small wind turbines at a distance of 70m. Noise level depends on wind speed. Thanks to energy transition.
• Febr. 11: Users info "waterfall" text length is limited to 10 characters. A "|" is in the plot instead of the IP address when no name or call is set.
• Dec. 29: A new domain name is now in use for the Maasbree WebSDR. The new links are:
hf.websdrmaasbree.nl or sdr.websdrmaasbree.nl:8901
2m.websdrmaasbree.nl or sdr.websdrmaasbree.nl:8905
Our info site:
www.websdrmaasbree.nl or websdrmaasbree.nl
• Dec. 27: Somehow we lost our dynDNS domain name on Christmas Day (not a good day for that).
• Dec. 25: Starting this morning the dynDNS link to the WebSDR seems to have some problems. For the moment use http://220.127.116.11:8901/ instead.
• Dec. 21: A new noise blanker is now in test on 80m. It is programmed in GNUradio and operates between de RSP1a driver and WebSDR software.
• Dec. 3: Exploited noise shaping further.
On 80m the quantization noise is reduced by 11dB. On 40m and 20m it is reduced by 18dB.
As a result the effective number of bits to the websdr is now 9.83 bit on 80m and 11 bit on 40m and 20m.
20m now runs on 1024kHz enabling a 460kHz bandwidth for full coverage of the band. We are testing 1024kHz for stable operation.
See also the updated: Manual WebSDR Maasbree and SDRplay RSP1a technical info
• April 15: Running WSPR on 80m, 40m and 20m using the call PH4RTM (see Manual).
Thanks Bas ON5HB for the cooperation and especially PA3FWM for making it possible with the WebSDR software.
• Jan. 19: The waterfall brightness is equalized over all bands (no change in S-meter reading).
On 80m/40m/20m (RSP1a receivers): noise shaping now lowers the quantization noise by 8dB (was 4dB). The noise shaped outside the band is masked.
• Dec. 19: Problem with Firefox update solved. Chrome, Edge and Firefox don't need the shift key anymore for frequency scrolling on the frequency scale.
Solved it in cooparation with Bas ON5HB and Clint KA7OEI (Utah WebSDR) and by looking in the code of the WebSDR Twente.