Hi Patrick, The potential exists in SDR-type radios to have phenomenal noise blankers. I know that the twin NBs in my own SDR-1000 are excellent. One is intended for short duration pulses (like electric fence clicks) and the other for longer buzzes & noises. Both of these blankers can have their threshold level (sensitivity) adjusted easily through a software dialog box.
The noise blankers in the SDR-1000 "look" at the signal before and after the noise burst, notches out the noise, and then-- (here comes the clever part)-- insert a COPY of a brief moment of the "good" signal into the empty spot left by the notched-out noise pulse. The result is the best noise blanking action I personally have encountered in a receiver. The SDR-IQ and SDR-14 could have the same performance level if the author of the SpectraVue software would update his program with a similar approach to noise blanking. Such are the benefits of these new software-defined radios. Manufacturers of traditional rigs can't upgrade their product with an easily distributed software package or version upgrade; ie., once a Drake R-8, Rev. A, always a Drake R-8, Rev. A... 73, Guy Atkins Puyallup, WA ------------------------------ Message: 4 Date: Tue, 2 Oct 2007 19:13:50 -0700 From: [EMAIL PROTECTED] (Patrick Martin) Subject: Re: [IRCA] Housing the RF-Space SDR-IQ To: [EMAIL PROTECTED], [email protected] (Mailing list for the International Radio Club of America) Message-ID: <[EMAIL PROTECTED]> Content-Type: Text/Plain; Charset=US-ASCII Thanks Rob for the info on the SDR-IQ. However, before I would invest in one, it would need a good noise blanker. Otherwise is is rather useless here. The clicking of the nearby electric fence would drive me nuts. All three of my receivers have NB. 73, Patrick Patrick Martin KAVT Reception Manager _______________________________________________ IRCA mailing list [email protected] http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: [email protected]
