This is true of the hardware blanker in the K3. The DSP blanker works on a different principle, in part because the noise pulse has potentially been "stretched" by the selectivity of the roofing filter.
In the DSP blanker, for the duration of the noise pulse, a locally generated signal is substituted. The amplitude is computed from the signal prior to the noise pulse, and the phase is extracted from the incoming signal+pulse. This is why it pays to play with BOTH noise blanker parameters with the K3. Depending on the type of impulse noise (ignition, power line arcing, electric fence, etc.), one may be much more effective than the other, or certain qualities of each may be usefully employed to minimize communications disruption. 73, Lyle KK7P > The K3 noise blanker, and in fact any noise blanker >works by producing "holes" in the receive path... ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
