Thanks Brian
I don't normally use the NB on AM, in fact, I don't use the AM broadcast
band that much either, but I had the NB turned on for the 80m band
because of a new neighbour that has a plasma TV set. When I tuned into
the AM BC band I noticed the distortion which disappeared when I turned
the NB off. You are right about the strong signal response as I found
it did the same thing on the SW bands with strong signals. The NBs are
not really needed on these signals.
Terry
On 20/12/2012 20:34, Brian Lloyd wrote:
On Thu, Dec 20, 2012 at 2:35 PM, Terry Maurice <ve3...@execulink.com
<mailto:ve3...@execulink.com>> wrote:
The thread on NB in digital mode brought to mind a question about
using the NB in AM mode. When I turn on the NBs AM broadcast band
signal are distorted. There is also distortion when using AM and
listening to SW in other bands. Is this normal or is something
being overloaded?
Very few Noise Blankers work properly with very strong signals.
Remember that they blank when a signal reaches a certain threshold and
a really strong nearby signal could reach that threshold, causing
blanking of the desired signal. I would not expect the NB to work on
the AM BCB due to overload from other strong signals in the receive
span. If you want to try to make them work you can change the
threshold values in DSP>Options.
--
Brian Lloyd, WB6RQN/J79BPL
3191 Western Dr.
Cameron Park, CA 95682
br...@lloyd.com <mailto:br...@lloyd.com>
+1.767.617.1365 (Dominica)
+1.916.877.5067 (USA)
--
*VE3XTM* EN93un
"May the propagation be with you."
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