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Re: [TenTec] Filters

To: tentec@contesting.com
Subject: Re: [TenTec] Filters
From: Stan Gammons <s_gammons@charter.net>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Tue, 12 Sep 2017 23:32:14 -0500
List-post: <mailto:tentec@contesting.com>
??? The 2.4 Khz filter I have is broken? That's what I think. I wouldn't think -24 db for the peaks in the passband of the filter would be "normal" The other filters were all around -15 db peaks in the passband. I would post the frequency response graphs, but attachments are allowed on this group.


73

Stan
KM4HQE


On 09/12/2017 11:21 PM, rick@dj0ip.de wrote:
No you don't, it's broken.
73
Rick, DJ0IP

-----Original Message-----
From: TenTec [mailto:tentec-bounces@contesting.com] On Behalf Of Stan
Gammons
Sent: Wednesday, September 13, 2017 4:56 AM
To: Discussion of Ten-Tec Equipment
Subject: [TenTec] Filters

I finally got around to doing a sweep of the filters on the PBT board in my
Omni VI using the Midnight SNA.  I think I see why the signal level shown on
the S-meter increases when I switch from 2.4 Khz to 1.8 Khz.
The 2.4 Khz filter has like 9 to 10 db more loss than the 1.8 Khz or 500 Hz
filters.  The extra 1.8 Khz and 500 Hz filters I have all measured roughly
the same.  I don't have another 2.4 Khz filter to compare to.
Guess I need to find another one.


73

Stan
KM4HQE
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