IF noise sounds unusual, although you will hear some high freq
"hiss" coming from the audio channel. This is because Ten Tec does
not roll off the high freq audio response as other manufacturers
do. (The other guys do it to mask synthesizer noise). There is
a microprocessor whine in the audio, but it should only be
noticeable at extremely low settings of the audio gain control.
This can ahppen if you are using low Z headphones. Use 600 ohm
or higher 'phones, get phones with a built-in volume control,
add an outboard voltage divider in the headphone plug, or
make up (as I did) a 500 ohm to 8 ohm transformer in a 35 mm
film container wioth plug and jack to go between the rig and
the headphones. This will greatly improve the audio quality
and reduce the relative noise level when using headphones.
73, Bob WB2VUF
Bill Cotter wrote:
>
> After having read many glowing reports about the Scout, I recently
> purchased a used one for vacation time. The rig really works nice
> on all the bands I have modules for, and the size is great for
> portable operation. On my trip this year I used it with an Astron
> AC supply and with large gel-cell batteries for several QSO's and FD.
>
> One of the first 'irregularities' I noticed was the low-level tone
> in the background audio. Volume up or down there was a persistent
> whine (1-3kHz), which I assumed to be microprocessor or display
> related. I didn't pay much attention to it at first, but it grew on
> me the longer I used it and made the FD operations tiring. I also
> experienced a high level of IF noise (determined by removing the
> band module) regardless of the bandwidth settings. The level of
> which there was not much difference with or without an antenna on
> 20m/10m. My second rig (NC-20) was MUCH quieter on 20m.
>
> My questions to all the Scout users out there, are these behaviours
> normal?? A noisy receiver seems out-of-character for Ten Tec. I
> realize that this is no OMNI-VI+ or Corsair-II, but the rx
> circuitry is quite state-of-the-art for having these problems.
> Perhaps I have something wrong with the rig?? I would like to hear
> your thoughts and comments.......
>
> tnx es 73 bill n4alg
>
> __________________________________________________________________
>
> Bill Cotter Mail: bcotter@pop.uky.edu
> Technical Systems Project Manager ICQ: 13117266
> VPIS Special Projects Office Pager: (606) 259-6082
> McVey Hall, Room-100 Phone: (606) 323-6474
> University of Kentucky FAX: (606) 323-1978
> Lexington, KY 40506-0045 Home: (606) 887-5563,2402
> __________________________________________________________________
>
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