Ken Brown wrote:
>> It does not go away; same signal strength (I'd give it about a 7 on our
>> RST scale).
>>
>> I don't know how to add attenuation at the antenna; are these the step
>> attenuators I've seen that some QRP operators use to reduce their output
>> power?
>>
>>
> Since it does not go away when you disconnect the antenna, adding
> attenuation to the antenna port is not going to tell us anything. The
> signal is something generated within the receiver. It is either the
> product of the mixture of oscillators and clocks all generated inside
> the receiver, or it is possible that there is something getting in on
> another lead, such as the power leads, data connection or audio
> connections. I'm inclined to believe it is all from within the receiver
> and no outside signals are involved. With a system as complex as the
> Orion, it is possible that to duplicate it on another Orion almost every
> single setting would have to be identical. Maybe the fellow who cannot
> hear it on his Orion has some setting completely different from you,
> resulting in one of the necessary component oscillators or clocks not
> being on the same frequency as in your Orion. What about the local
> oscillator in the auxiliary receiver? Maybe he habitually leaves his on
> a WWV frequency and you habitually leave yours on some other frequency.
>
>> I am going to try turning off other electrical gear near the transceiver
>> (computer, principally) and see if that makes a difference.
>>
>>
>>
> Good idea. And in addition to turning things off, disconnect as much
> stuff from the rig as possible.
>
> DE N6KB
>
>
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>
Thanks, Ken... no change when other things turned off. I'm going to not
pursue this thread further; if anyone becomes curious about it later, or
duplicates the issue, he or she can revive it. I appreciate your comments1
--
John, K3GHH
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