[TenTec] Jupiter sweep/sensitivity question

[Bob McGraw K4TAX]

When the scan mode is activated, the receiver AGC is set to off mode in 
order to provide increased gain for the signals to be displayed.  When 
the scan is completed the receiver AGC is returned to the original 
value.   However, since there are time constants, both on attack and 
release values, thus the recovery time is noticed.   There is no change 
in sensitivity but there is a change in receiver gain.

73

Bob,K4TAX


On 2/5/2020 7:18 AM, Ed Lawson wrote:
> Recently I noticed my Jupiter operates in an odd way.  I
> believe it may have always done this since I bought it used.
> Basically, when I activate the sweep feature and it completes the
> sweep two things seem to happen.  First, the background noise and
> signals seem to go up suggesting an increase in sensitivity.  Second,
> the S-meter seems to provide more accurate readings as opposed to
> registering a continuously high value.
>
> Radio works fine except for this anomaly and was checked out by Ten-Tec
> awhile back for other reasons.
>
> Curious if others have experienced the same thing.  Perhaps I am
> missing a setting that causes this behavior, but it suggests a software
> glitch to me.
>
> Thank you for any insights.
>