[TenTec] Basic question (especially NR operation)
Joe Giacobello
k2xx at swva.net
Wed Aug 4 19:08:54 EDT 2004
OK, Sinisa. I didn't have your paper in front of me when I sent message.
73, Joe
Sinisa Hristov wrote:
>Joe Giacobello wrote:
>
>
>
>>Actually, Sinisa, I was referring to your FB writeup on the Orion where
>>you recommend backing off on the RF gain until the S-meter drops back
>>about 12 dB(?) or so.
>>
>>
>
>
>No, I've never recommended such a thing, you misread it.
>
>In my text 12 dB refers to the difference between
>external noise level and RX internal noise level.
>
>The adjustment is performed by using controls in the following order:
> * PREAMP turned off;
> * ATTN increased to 6, 12 or 18 dB;
> * RF GAIN reduced.
>
>Actually, I've never had the need to reduce RF GAIN,
>PREAMP and ATTN sufficed (on main RX).
>
>
>73,
>
>Sinisa YT1NT, VA3TTN
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