From: peter barville Subject: [Elecraft] Re: Noise blanker v. electric fence In message , John Garrett writes >On my K2 with NB2 selected the >pulse was only about 70us so I added a 0.068uF capacitor across C12 to >extend the width to about 600us and was pleased to find that this almost >eliminates the noise. I'd be pleased to hear from anybody who has tried >any mods in this area, especially the noise gate itself. John In case you missed it, here is a copy of a message I posted on 2nd August: I am writing this on behalf of David, G3LUB, who does not subscribe to this list but has been doing some experiments with the performance of his K2 noise blanker in relation to the noise generated by a local electric fence (used to contain livestock). He discovered that the duration of the noise pulse it produces (around 1mS, I think he said) is considerably longer than the blanking period from the NB. By changing C12 to a value of 0.22uF, he now finds that the two periods are more closely matched, and that the NB now kills the noise very efficiently, which it did not do before carrying out the mod. - -- 7K2, peter g3xjs