[TenTec] 219 filter

[Bob McGraw - K4TAX]

Here's one thing that you may want to do.  For 160M and 75M and sometimes 
40M operation, reduce the RF gain to the point where the no signal condition 
{thus background noise/atmospheric noise} has the S-meter at about S-1 or 
between S-1 & S-2.  Keeping the RF gain down will improve S/N ratio.  Also 
running the AGC in the FAST mode helps.

73
Bob, K4TAX

----- Original Message ----- 
From: "Paul DeWitte K9OT" <k9ot at mhtc.net>
To: <tentec at contesting.com>
Sent: Thursday, October 25, 2007 8:52 AM
Subject: [TenTec] 219 filter


>I did some more playing with the 219 9mhz filter last night.
>
> I have tried it in both of the n1 and n2 positions. N2 has the inrad 
> roofing
> filter in it also. No difference in either position. I get about a 10 db
> loss which is what T T says is the loss in that filter.
>
> This is regardless of how I play with any other functions, PBT,NR, etc.
>
> This is for weak signal DX on 80&160m. Other bands dont need it. I am just
> trying to lower the QRN to sig ratio.
>
> Thanks for all of the replies and suggestions. I guess it is back to the
> 500hz filters.
>
> 73 Paul K9OT
>
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