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Re: [softrock40] Re: bandpass filter using softrock

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  • brainerd@wildblue.net
    ... 5 mV ?? That is a really loud signal. The Softrock will go down to 1 microvolt or less. If you are using it above 20 meters, a pre-amp may help for the
    Message 1 of 7 , Mar 1, 2008
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      On 1 Mar 2008 at 19:34, Shih Wei wrote:

      > hmm...... still not sure whether I should be getting a preamp, as the
      > voltage from the antenna will be quite low, probably around 5mV... Is
      > the softrock capable of processing such a low voltage signal?
      >
      > Thanks
      >
      5 mV ?? That is a really loud signal. The Softrock will go down to 1
      microvolt or less. If you are using it above 20 meters, a pre-amp may help
      for the weak signals. On the lower bands, the noise is higher than the
      sensitivity.

      Dave - WB6DHW
      <http://wb6dhw.com>
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