Disconnect the antenna....do they go away? If so they are real...if not they
are internal birdies.
Could be external intermod products...signals mixing in the air at a non-linear
junction...such as a rusty tower bolt or the like. Very difficult to find.
Cecil
K5DL
Sent from my iPad
On Jul 22, 2013, at 8:40 PM, Michael Tortorella <w2iy@verizon.net> wrote:
> Gang,
> I am consistently hearing a carrier on approximately 7.030, 14.030, 21.022,
> and a couple of others. I don' have access to another receiver now so I can't
> check if these are real or mixing products in the 890. Does anyone know if
> these are known mixing products or real signals? The one on 20 mtrs sounds
> like it's pulse modulated, another of those OTH radars?
> Thanks and 73
> Mike W2IY
>
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