Hi All, Noise blankers are sometimes very efficient in reducing man made noise. It is well known however that strong signals within the blanker bandwidth often renders the blanker useless.
Today, with SDR technology it is possible to do much better, but as far as I know not very much work has yet been put into developing appropriate algorithms. I write this mail because I want to come in contact with people who have these specific circumstances in receiver operation: 1) Strong local QRN (preferrably powerline in dry weather that disappears in rainy weather.) 2) A conventional noise blanker works well and reduces the interference by at least 3 S units (when there is no strong signal on an adjacent frequency.) 3) The ability to copy weak signals is completely lost when a strong signal is present on an adjacent frequency because the blanker will then not work. 4) In case the problems are detected with some conventional transceiver, an attempt to resolve it by use of a SDR system (borrowed or your own) has not led to a significant improvement. In case you find yourself as a candidate to meet the above requirements I have a great interest in getting wideband recordings from a SDR system at your location. Please respond to leif[[[at]]]sm5bsz.com Some QRN situations can already be managed quite well with Linrad and I need good examples to demonstrate how to use the Linrad noise blankers. Other QRN situations can not be well managed within Linrad and I am interested in the wideband recordings to be able to use them for the developmment of better algorithms. 73 Leif / SM5BSZ http://sm5bsz.com _______________________________________________ Flexedge mailing list [email protected] http://mail.flex-radio.biz/mailman/listinfo/flexedge_flex-radio.biz This is the FlexRadio Systems e-mail Reflector called FlexEdge. It is used for posting topics related to SDR software development and experimentalist who are using beta versions of the software.
