[TenTec] Filters

[Stan Gammons]

lol!

Yep, all of the trees got in the way and I couldn't see the forest :)

I'll look for another filter.

73

Stan
KM4HQE


On 09/12/2017 11:43 PM, rick at dj0ip.de wrote:
> You're wasting your time.
> You already found the forest.  If you ignore the trees, you'll see it!  (hi)
> That filter probably has a bad crystal.
> Just get a new filter Stan.
>
> 73
> Rick, DJ0IP
>
> -----Original Message-----
> From: TenTec [mailto:tentec-bounces at contesting.com] On Behalf Of Stan
> Gammons
> Sent: Wednesday, September 13, 2017 6:32 AM
> To: tentec at contesting.com
> Subject: Re: [TenTec] Filters
>
> ???  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 at dj0ip.de wrote:
>> No you don't, it's broken.
>> 73
>> Rick, DJ0IP
>>
>> -----Original Message-----
>> From: TenTec [mailto:tentec-bounces at 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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