Jim C,
I did a Google search on "ten tec jupiter attenuator," and the first 2
listings were about attenuators that were stuck in the "on" position.
Maybe this is the problem.
Using maximum rf gain, you could try two simple tests: If you are
listening to a strong signal and put the attenuator in, the signal
should drop noticeably. If you are listening to noise on a quiet spot
in any band (with a decent antenna system) and put the attenuator in,
the noise out of the receiver should drop noticeably. This should
happen independently of receive bandwidth, and the 10-meter band would
probably provide the most stringent test.
Passing the first test indicates that the attenuator is working.
Passing the second test indicates that the Jupiter's internal noise
does not mask noise picked up by the antenna.
73,
Tony W1OT
On 1/28/09, jimimaxi2@comcast.net <jimimaxi2@comcast.net> wrote:
> I have a Jupter, pre blue screen, that I purchased from Ten Tec used in
> October of 2007.
> I am not too technical a HAM so please no freakazoid terms in your answer.
>
> Why is the Jupiter so quiet on receive?
> I am not attempting to start a "My radio is better than your radio"
> argument.
>
> I can compare it personally to a Kenwood TS-480SAT and a Yaesu 817 and they
> are two noisy radios compared to my Jupiter.
>
> WHY?
>
> Thanks so much,
> Jim C
> KC2ROF
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> TenTec@contesting.com
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>
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